Measurements of Σ+ and Σ− time-like electromagnetic form factors for center-of-mass energies from 2.3864 to 3.0200 GeV
Physics Letters B Elsevier 814 (2021) 136110
Authors:
BESIII Collaboration, M Ablikim, MN Achasov, P Adlarson, S Ahmed, M Albrecht, A Amoroso, Q An, Anita, Y Bai, O Bakina, R Baldini Ferroli, I Balossino, Y Ban, K Begzsuren, JV Bennett, N Berger, M Bertani, D Bettoni, F Bianchi, J Biernat, J Bloms, A Bortone, I Boyko, RA Briere, H Cai, X Cai, A Calcaterra, GF Cao, N Cao, SA Cetin, JF Chang, WL Chang, G Chelkov, DY Chen, G Chen, HS Chen, ML Chen, SJ Chen, XR Chen, YB Chen, W Cheng, G Cibinetto, F Cossio, XF Cui, HL Dai, JP Dai, XC Dai, A Dbeyssi, RB de Boer, D Dedovich, ZY Deng, A Denig, I Denysenko, M Destefanis, F De Mori, Y Ding, C Dong, J Dong, LY Dong, MY Dong, SX Du, J Fang, SS Fang, Y Fang, R Farinelli, L Fava, F Feldbauer, G Felici, CQ Feng, M Fritsch, CD Fu, Y Fu, XL Gao, Y Gao, Y Gao, YG Gao, I Garzia, EM Gersabeck, A Gilman, K Goetzen, L Gong, WX Gong, W Gradl, M Greco, LM Gu, MH Gu, S Gu, YT Gu, CY Guan, AQ Guo, LB Guo, RP Guo, YP Guo, YP Guo, A Guskov, S Han, TT Han, TZ Han, XQ Hao, FA Harris, KL He, FH Heinsius, T Held, YK Heng, M Himmelreich, T Holtmann, YR Hou, ZL Hou, HM Hu, JF Hu, T Hu, Y Hu, GS Huang, LQ Huang, XT Huang, Z Huang, N Huesken, T Hussain, W Ikegami Andersson, W Imoehl, M Irshad, S Jaeger, S Janchiv, Q Ji, QP Ji, XB Ji, XL Ji, HB Jiang, XS Jiang, XY Jiang, JB Jiao, Z Jiao, S Jin, Y Jin, T Johansson, N Kalantar-Nayestanaki, XS Kang, R Kappert, M Kavatsyuk, BC Ke, IK Keshk, A Khoukaz, P Kiese, R Kiuchi, R Kliemt, L Koch, OB Kolcu, B Kopf, M Kuemmel, M Kuessner, A Kupsc, MG Kurth, W Kühn, JJ Lane, JS Lange, P Larin, L Lavezzi, H Leithoff, M Lellmann, T Lenz, C Li, CH Li, Cheng Li, DM Li, F Li, G Li, HB Li, HJ Li, JL Li, JQ Li, Ke Li, LK Li, Lei Li, PL Li, PR Li, SY Li, WD Li, WG Li, XH Li, XL Li, ZB Li, ZY Li, H Liang, H Liang, YF Liang, YT Liang, LZ Liao, J Libby, CX Lin, B Liu, BJ Liu, CX Liu, D Liu, DY Liu, FH Liu, Fang Liu, Feng Liu, HB Liu, HM Liu, Huanhuan Liu, Huihui Liu, JB Liu, JY Liu, K Liu, KY Liu, Ke Liu, L Liu, Q Liu, SB Liu, Shuai Liu, T Liu, X Liu, YB Liu, ZA Liu, ZQ Liu, YF Long, XC Lou, FX Lu, HJ Lu, JD Lu, JG Lu, XL Lu, Y Lu, YP Lu, CL Luo, MX Luo, PW Luo, T Luo, XL Luo, S Lusso, XR Lyu, FC Ma, HL Ma, LL Ma, MM Ma, QM Ma, RQ Ma, RT Ma, XN Ma, XX Ma, XY Ma, YM Ma, FE Maas, M Maggiora, S Maldaner, S Malde, QA Malik, A Mangoni, YJ Mao, ZP Mao, S Marcello, ZX Meng, JG Messchendorp, G Mezzadri, TJ Min, RE Mitchell, XH Mo, YJ Mo, N Yu Muchnoi, H Muramatsu, S Nakhoul, Y Nefedov, F Nerling, IB Nikolaev, Z Ning, S Nisar, SL Olsen, Q Ouyang, S Pacetti, X Pan, Y Pan, A Pathak, P Patteri, M Pelizaeus, HP Peng, K Peters, J Pettersson, JL Ping, RG Ping, A Pitka, R Poling, V Prasad, H Qi, HR Qi, M Qi, TY Qi, S Qian, W-B Qian, Z Qian, CF Qiao, LQ Qin, XP Qin, XS Qin, ZH Qin, JF Qiu, SQ Qu, KH Rashid, K Ravindran, CF Redmer, A Rivetti, V Rodin, M Rolo, G Rong, Ch Rosner, M Rump, A Sarantsev, M Savrié, Y Schelhaas, C Schnier, K Schoenning, DC Shan, W Shan, XY Shan, M Shao, CP Shen, PX Shen, XY Shen, HC Shi, RS Shi, X Shi, XD Shi, JJ Song, QQ Song, WM Song, YX Song, S Sosio, S Spataro, FF Sui, GX Sun, JF Sun, L Sun, SS Sun, T Sun, WY Sun, YJ Sun, YK Sun, YZ Sun, ZT Sun, YH Tan, YX Tan, CJ Tang, GY Tang, J Tang, V Thoren, B Tsednee, I Uman, B Wang, BL Wang, CW Wang, DY Wang, HP Wang, K Wang, LL Wang, M Wang, MZ Wang, Meng Wang, WH Wang, WP Wang, X Wang, XF Wang, XL Wang, Y Wang, Y Wang, YD Wang, YF Wang, YQ Wang, Z Wang, ZY Wang, Ziyi Wang, Zongyuan Wang, T Weber, DH Wei, P Weidenkaff, F Weidner, SP Wen, DJ White, U Wiedner, G Wilkinson, M Wolke, L Wollenberg, JF Wu, LH Wu, LJ Wu, X Wu, Z Wu, L Xia, H Xiao, SY Xiao, YJ Xiao, ZJ Xiao, XH Xie, YG Xie, YH Xie, TY Xing, XA Xiong, GF Xu, JJ Xu, QJ Xu, W Xu, XP Xu, L Yan, L Yan, WB Yan, WC Yan, Xu Yan, HJ Yang, HX Yang, L Yang, RX Yang, SL Yang, YH Yang, YX Yang, Yifan Yang, Zhi Yang, M Ye, MH Ye, JH Yin, ZY You, BX Yu, CX Yu, G Yu, JS Yu, T Yu, CZ Yuan, W Yuan, XQ Yuan, Y Yuan, ZY Yuan, CX Yue, A Yuncu, AA Zafar, Y Zeng, BX Zhang, Guangyi Zhang, HH Zhang, HY Zhang, JL Zhang, JQ Zhang, JW Zhang, JY Zhang, JZ Zhang, Jianyu Zhang, Jiawei Zhang, L Zhang, Lei Zhang, S Zhang, SF Zhang, TJ Zhang, XY Zhang, Y Zhang, YH Zhang, YT Zhang, Yan Zhang, Yao Zhang, Yi Zhang, ZH Zhang, ZY Zhang, G Zhao, J Zhao, JY Zhao, JZ Zhao, Lei Zhao, Ling Zhao, MG Zhao, Q Zhao, SJ Zhao, YB Zhao, YX Zhao Zhao, ZG Zhao, A Zhemchugov, B Zheng, JP Zheng, Y Zheng, YH Zheng, B Zhong, C Zhong, LP Zhou, Q Zhou, X Zhou, XK Zhou, XR Zhou, AN Zhu, J Zhu, K Zhu, KJ Zhu, SH Zhu, WJ Zhu, XL Zhu, YC Zhu, ZA Zhu, BS Zou, JH ZouModel-Independent Determination of the Spin of the Ω^{-} and Its Polarization Alignment in ψ(3686)→Ω^{-}Ω[over ¯]^{+}.
Physical review letters 126:9 (2021) 092002
Authors:
M Ablikim, MN Achasov, P Adlarson, S Ahmed, M Albrecht, A Amoroso, Q An, Anita, Y Bai, O Bakina, R Baldini Ferroli, I Balossino, Y Ban, K Begzsuren, JV Bennett, N Berger, M Bertani, D Bettoni, F Bianchi, J Biernat, J Bloms, A Bortone, I Boyko, RA Briere, H Cai, X Cai, A Calcaterra, GF Cao, N Cao, SA Cetin, JF Chang, WL Chang, G Chelkov, DY Chen, G Chen, HS Chen, ML Chen, SJ Chen, XR Chen, YB Chen, WS Cheng, G Cibinetto, F Cossio, XF Cui, HL Dai, JP Dai, XC Dai, A Dbeyssi, RB de Boer, D Dedovich, ZY Deng, A Denig, I Denysenko, M Destefanis, F De Mori, Y Ding, C Dong, J Dong, LY Dong, MY Dong, SX Du, J Fang, SS Fang, Y Fang, R Farinelli, L Fava, F Feldbauer, G Felici, CQ Feng, M Fritsch, CD Fu, Y Fu, XL Gao, Y Gao, Y Gao, YG Gao, I Garzia, EM Gersabeck, A Gilman, K Goetzen, L Gong, WX Gong, W Gradl, M Greco, LM Gu, MH Gu, S Gu, YT Gu, CY Guan, AQ Guo, LB Guo, RP Guo, YP Guo, YP Guo, A Guskov, S Han, TT Han, TZ Han, XQ Hao, FA Harris, KL He, FH Heinsius, T Held, YK Heng, M Himmelreich, T Holtmann, YR Hou, ZL Hou, HM Hu, JF Hu, T Hu, Y Hu, GS Huang, LQ Huang, XT Huang, Z Huang, N Huesken, T Hussain, W Ikegami Andersson, W Imoehl, M Irshad, S Jaeger, S Janchiv, Q Ji, QP Ji, XB Ji, XL Ji, HB Jiang, XS Jiang, XY Jiang, JB Jiao, Z Jiao, S Jin, Y Jin, T Johansson, N Kalantar-Nayestanaki, XS Kang, R Kappert, M Kavatsyuk, BC Ke, IK Keshk, A Khoukaz, P Kiese, R Kiuchi, R Kliemt, L Koch, OB Kolcu, B Kopf, M Kuemmel, M Kuessner, A Kupsc, MG Kurth, W Kühn, JJ Lane, JS Lange, P Larin, L Lavezzi, H Leithoff, M Lellmann, T Lenz, C Li, CH Li, Cheng Li, DM Li, F Li, G Li, HB Li, HJ Li, JL Li, JQ Li, Ke Li, LK Li, Lei Li, PL Li, PR Li, SY Li, WD Li, WG Li, XH Li, XL Li, ZB Li, ZY Li, H Liang, H Liang, YF Liang, YT Liang, LZ Liao, J Libby, CX Lin, B Liu, BJ Liu, CX Liu, D Liu, DY Liu, FH Liu, Fang Liu, Feng Liu, HB Liu, HM Liu, Huanhuan Liu, Huihui Liu, JB Liu, JY Liu, K Liu, KY Liu, Ke Liu, L Liu, Q Liu, SB Liu, Shuai Liu, T Liu, X Liu, YB Liu, ZA Liu, ZQ Liu, YF Long, XC Lou, FX Lu, HJ Lu, JD Lu, JG Lu, XL Lu, Y Lu, YP Lu, CL Luo, MX Luo, PW Luo, T Luo, XL Luo, S Lusso, XR Lyu, FC Ma, HL Ma, LL Ma, MM Ma, QM Ma, RQ Ma, RT Ma, XN Ma, XX Ma, XY Ma, YM Ma, FE Maas, M Maggiora, S Maldaner, S Malde, QA Malik, A Mangoni, YJ Mao, ZP Mao, S Marcello, ZX Meng, JG Messchendorp, G Mezzadri, TJ Min, RE Mitchell, XH Mo, YJ Mo, N Yu Muchnoi, H Muramatsu, S Nakhoul, Y Nefedov, F Nerling, IB Nikolaev, Z Ning, S Nisar, SL Olsen, Q Ouyang, S Pacetti, X Pan, Y Pan, A Pathak, P Patteri, M Pelizaeus, HP Peng, K Peters, J Pettersson, JL Ping, RG Ping, A Pitka, R Poling, V Prasad, H Qi, HR Qi, M Qi, TY Qi, S Qian, W-B Qian, Z Qian, CF Qiao, LQ Qin, XP Qin, XS Qin, ZH Qin, JF Qiu, SQ Qu, KH Rashid, K Ravindran, CF Redmer, A Rivetti, V Rodin, M Rolo, G Rong, Ch Rosner, M Rump, A Sarantsev, Y Schelhaas, C Schnier, K Schoenning, DC Shan, W Shan, XY Shan, M Shao, CP Shen, PX Shen, XY Shen, HC Shi, RS Shi, X Shi, XD Shi, JJ Song, QQ Song, WM Song, YX Song, S Sosio, S Spataro, FF Sui, GX Sun, JF Sun, L Sun, SS Sun, T Sun, WY Sun, YJ Sun, YK Sun, YZ Sun, ZT Sun, YH Tan, YX Tan, CJ Tang, GY Tang, J Tang, V Thoren, B Tsednee, I Uman, B Wang, BL Wang, CW Wang, DY Wang, HP Wang, K Wang, LL Wang, M Wang, MZ Wang, Meng Wang, WH Wang, WP Wang, X Wang, XF Wang, XL Wang, Y Wang, Y Wang, YD Wang, YF Wang, YQ Wang, Z Wang, ZY Wang, Ziyi Wang, Zongyuan Wang, DH Wei, P Weidenkaff, F Weidner, SP Wen, DJ White, U Wiedner, G Wilkinson, M Wolke, L Wollenberg, JF Wu, LH Wu, LJ Wu, X Wu, Z Wu, L Xia, H Xiao, SY Xiao, YJ Xiao, ZJ Xiao, XH Xie, YG Xie, YH Xie, TY Xing, XA Xiong, GF Xu, JJ Xu, QJ Xu, W Xu, XP Xu, L Yan, L Yan, WB Yan, WC Yan, Xu Yan, HJ Yang, HX Yang, L Yang, RX Yang, SL Yang, YH Yang, YX Yang, Yifan Yang, Zhi Yang, M Ye, MH Ye, JH Yin, ZY You, BX Yu, CX Yu, G Yu, JS Yu, T Yu, CZ Yuan, W Yuan, XQ Yuan, Y Yuan, ZY Yuan, CX Yue, A Yuncu, AA Zafar, Y Zeng, BX Zhang, Guangyi Zhang, HH Zhang, HY Zhang, JL Zhang, JQ Zhang, JW Zhang, JY Zhang, JZ Zhang, Jianyu Zhang, Jiawei Zhang, L Zhang, Lei Zhang, S Zhang, SF Zhang, TJ Zhang, XY Zhang, Y Zhang, YH Zhang, YT Zhang, Yan Zhang, Yao Zhang, Yi Zhang, ZH Zhang, ZY Zhang, G Zhao, J Zhao, JY Zhao, JZ Zhao, Lei Zhao, Ling Zhao, MG Zhao, Q Zhao, SJ Zhao, YB Zhao, YX Zhao Zhao, ZG Zhao, A Zhemchugov, B Zheng, JP Zheng, Y Zheng, YH Zheng, B Zhong, C Zhong, LP Zhou, Q Zhou, X Zhou, XK Zhou, XR Zhou, AN Zhu, J Zhu, K Zhu, KJ Zhu, SH Zhu, WJ Zhu, XL Zhu, YC Zhu, ZA Zhu, BS Zou, JH Zou, BESIII CollaborationAbstract:
We present an analysis of the process ψ(3686)→Ω^{-}Ω[over ¯]^{+} (Ω^{-}→K^{-}Λ, Ω[over ¯]^{+}→K^{+}Λ[over ¯], Λ→pπ^{-}, Λ[over ¯]→p[over ¯]π^{+}) based on a dataset of 448×10^{6} ψ(3686) decays collected with the BESIII detector at the BEPCII electron-positron collider. The helicity amplitudes for the process ψ(3686)→Ω^{-}Ω[over ¯]^{+} and the decay parameters of the subsequent decay Ω^{-}→K^{-}Λ (Ω[over ¯]^{+}→K^{+}Λ[over ¯]) are measured for the first time by a fit to the angular distribution of the complete decay chain, and the spin of the Ω^{-} is determined to be 3/2 for the first time since its discovery more than 50 years ago.Observation of Multiplicity Dependent Prompt χ_{c1}(3872) and ψ(2S) Production in pp Collisions.
Physical review letters 126:9 (2021) 092001
Authors:
R Aaij, C Abellán Beteta, T Ackernley, B Adeva, M Adinolfi, H Afsharnia, CA Aidala, S Aiola, Z Ajaltouni, S Akar, J Albrecht, F Alessio, M Alexander, A Alfonso Albero, Z Aliouche, G Alkhazov, P Alvarez Cartelle, S Amato, Y Amhis, L An, L Anderlini, A Andreianov, M Andreotti, F Archilli, A Artamonov, M Artuso, K Arzymatov, E Aslanides, M Atzeni, B Audurier, S Bachmann, M Bachmayer, JJ Back, S Baker, P Baladron Rodriguez, V Balagura, W Baldini, J Baptista Leite, RJ Barlow, S Barsuk, W Barter, M Bartolini, F Baryshnikov, JM Basels, G Bassi, B Batsukh, A Battig, A Bay, M Becker, F Bedeschi, I Bediaga, A Beiter, V Belavin, S Belin, V Bellee, K Belous, I Belov, I Belyaev, G Bencivenni, E Ben-Haim, A Berezhnoy, R Bernet, D Berninghoff, HC Bernstein, C Bertella, E Bertholet, A Bertolin, C Betancourt, F Betti, MO Bettler, Ia Bezshyiko, S Bhasin, J Bhom, L Bian, MS Bieker, S Bifani, P Billoir, M Birch, FCR Bishop, A Bizzeti, M Bjørn, MP Blago, T Blake, F Blanc, S Blusk, D Bobulska, JA Boelhauve, O Boente Garcia, T Boettcher, A Boldyrev, A Bondar, N Bondar, S Borghi, M Borisyak, M Borsato, JT Borsuk, SA Bouchiba, TJV Bowcock, A Boyer, C Bozzi, MJ Bradley, S Braun, A Brea Rodriguez, M Brodski, J Brodzicka, A Brossa Gonzalo, D Brundu, A Buonaura, C Burr, A Bursche, A Butkevich, JS Butter, J Buytaert, W Byczynski, S Cadeddu, H Cai, R Calabrese, L Calefice, L Calero Diaz, S Cali, R Calladine, M Calvi, M Calvo Gomez, P Camargo Magalhaes, A Camboni, P Campana, DH Campora Perez, AF Campoverde Quezada, S Capelli, L Capriotti, A Carbone, G Carboni, R Cardinale, A Cardini, I Carli, P Carniti, K Carvalho Akiba, A Casais Vidal, G Casse, M Cattaneo, G Cavallero, S Celani, J Cerasoli, AJ Chadwick, MG Chapman, M Charles, Ph Charpentier, G Chatzikonstantinidis, CA Chavez Barajas, M Chefdeville, C Chen, S Chen, A Chernov, S-G Chitic, V Chobanova, S Cholak, M Chrzaszcz, A Chubykin, V Chulikov, P Ciambrone, MF Cicala, X Cid Vidal, G Ciezarek, PEL Clarke, M Clemencic, HV Cliff, J Closier, JL Cobbledick, V Coco, JAB Coelho, J Cogan, E Cogneras, L Cojocariu, P Collins, T Colombo, L Congedo, A Contu, N Cooke, G Coombs, G Corti, CM Costa Sobral, B Couturier, DC Craik, J Crkovská, M Cruz Torres, R Currie, CL Da Silva, E Dall'Occo, J Dalseno, C D'Ambrosio, A Danilina, P d'Argent, A Davis, O De Aguiar Francisco, K De Bruyn, S De Capua, M De Cian, JM De Miranda, L De Paula, M De Serio, D De Simone, P De Simone, JA de Vries, CT Dean, W Dean, D Decamp, L Del Buono, B Delaney, H-P Dembinski, A Dendek, V Denysenko, D Derkach, O Deschamps, F Desse, F Dettori, B Dey, P Di Nezza, S Didenko, L Dieste Maronas, H Dijkstra, V Dobishuk, AM Donohoe, F Dordei, AC Dos Reis, L Douglas, A Dovbnya, AG Downes, K Dreimanis, MW Dudek, L Dufour, V Duk, P Durante, JM Durham, D Dutta, M Dziewiecki, A Dziurda, A Dzyuba, S Easo, U Egede, V Egorychev, S Eidelman, S Eisenhardt, S Ek-In, L Eklund, S Ely, A Ene, E Epple, S Escher, J Eschle, S Esen, T Evans, A Falabella, J Fan, Y Fan, B Fang, N Farley, S Farry, D Fazzini, P Fedin, M Féo, P Fernandez Declara, A Fernandez Prieto, F Ferrari, L Ferreira Lopes, F Ferreira Rodrigues, S Ferreres Sole, M Ferrillo, M Ferro-Luzzi, S Filippov, RA Fini, M Fiorini, M Firlej, KM Fischer, C Fitzpatrick, T Fiutowski, F Fleuret, M Fontana, F Fontanelli, R Forty, V Franco Lima, M Franco Sevilla, M Frank, E Franzoso, G Frau, C Frei, DA Friday, J Fu, Q Fuehring, W Funk, E Gabriel, T Gaintseva, A Gallas Torreira, D Galli, S Gambetta, Y Gan, M Gandelman, P Gandini, Y Gao, M Garau, LM Garcia Martin, P Garcia Moreno, J García Pardiñas, B Garcia Plana, FA Garcia Rosales, L Garrido, D Gascon, C Gaspar, RE Geertsema, D Gerick, LL Gerken, E Gersabeck, M Gersabeck, T Gershon, D Gerstel, Ph Ghez, V Gibson, M Giovannetti, A Gioventù, P Gironella Gironell, L Giubega, C Giugliano, K Gizdov, EL Gkougkousis, VV Gligorov, C Göbel, E Golobardes, D Golubkov, A Golutvin, A Gomes, S Gomez Fernandez, M Goncerz, G Gong, P Gorbounov, IV Gorelov, C Gotti, E Govorkova, JP Grabowski, R Graciani Diaz, T Grammatico, LA Granado Cardoso, E Graugés, E Graverini, G Graziani, A Grecu, LM Greeven, P Griffith, L Grillo, S Gromov, L Gruber, BR Gruberg Cazon, C Gu, M Guarise, PA Günther, E Gushchin, A Guth, Y Guz, T Gys, T Hadavizadeh, G Haefeli, C Haen, J Haimberger, SC Haines, T Halewood-Leagas, PM Hamilton, Q Han, X Han, TH Hancock, S Hansmann-Menzemer, N Harnew, T Harrison, C Hasse, M Hatch, J He, M Hecker, K Heijhoff, K Heinicke, AM Hennequin, K Hennessy, L Henry, J Heuel, A Hicheur, D Hill, M Hilton, SE Hollitt, PH Hopchev, J Hu, J Hu, W Hu, W Huang, X Huang, W Hulsbergen, RJ Hunter, M Hushchyn, D Hutchcroft, D Hynds, P Ibis, M Idzik, D Ilin, P Ilten, A Inglessi, A Ishteev, K Ivshin, R Jacobsson, S Jakobsen, E Jans, BK Jashal, A Jawahery, V Jevtic, M Jezabek, F Jiang, M John, D Johnson, CR Jones, TP Jones, B Jost, N Jurik, S Kandybei, Y Kang, M Karacson, JM Kariuki, N Kazeev, M Kecke, F Keizer, M Kenzie, T Ketel, B Khanji, A Kharisova, S Kholodenko, KE Kim, T Kirn, VS Kirsebom, O Kitouni, S Klaver, K Klimaszewski, S Koliiev, A Kondybayeva, A Konoplyannikov, P Kopciewicz, R Kopecna, P Koppenburg, M Korolev, I Kostiuk, O Kot, S Kotriakhova, P Kravchenko, L Kravchuk, RD Krawczyk, M Kreps, F Kress, S Kretzschmar, P Krokovny, W Krupa, W Krzemien, W Kucewicz, M Kucharczyk, V Kudryavtsev, HS Kuindersma, GJ Kunde, T Kvaratskheliya, D Lacarrere, G Lafferty, A Lai, A Lampis, D Lancierini, JJ Lane, R Lane, G Lanfranchi, C Langenbruch, J Langer, O Lantwin, T Latham, F Lazzari, R Le Gac, SH Lee, R Lefèvre, A Leflat, S Legotin, O Leroy, T Lesiak, B Leverington, H Li, L Li, P Li, X Li, Y Li, Y Li, Z Li, X Liang, T Lin, R Lindner, V Lisovskyi, R Litvinov, G Liu, H Liu, S Liu, X Liu, A Loi, J Lomba Castro, I Longstaff, JH Lopes, G Loustau, GH Lovell, Y Lu, D Lucchesi, S Luchuk, M Lucio Martinez, V Lukashenko, Y Luo, A Lupato, E Luppi, O Lupton, A Lusiani, X Lyu, L Ma, S Maccolini, F Machefert, F Maciuc, V Macko, P Mackowiak, S Maddrell-Mander, O Madejczyk, LR Madhan Mohan, O Maev, A Maevskiy, D Maisuzenko, MW Majewski, S Malde, B Malecki, A Malinin, T Maltsev, H Malygina, G Manca, G Mancinelli, R Manera Escalero, D Manuzzi, D Marangotto, J Maratas, JF Marchand, U Marconi, S Mariani, C Marin Benito, M Marinangeli, P Marino, J Marks, PJ Marshall, G Martellotti, L Martinazzoli, M Martinelli, D Martinez Santos, F Martinez Vidal, A Massafferri, M Materok, R Matev, A Mathad, Z Mathe, V Matiunin, C Matteuzzi, KR Mattioli, A Mauri, E Maurice, J Mauricio, M Mazurek, M McCann, L Mcconnell, TH Mcgrath, A McNab, R McNulty, JV Mead, B Meadows, C Meaux, G Meier, N Meinert, D Melnychuk, S Meloni, M Merk, A Merli, L Meyer Garcia, M Mikhasenko, DA Milanes, E Millard, M-N Minard, L Minzoni, SE Mitchell, B Mitreska, DS Mitzel, A Mödden, RA Mohammed, RD Moise, T Mombächer, IA Monroy, S Monteil, M Morandin, G Morello, MJ Morello, J Moron, AB Morris, AG Morris, R Mountain, H Mu, F Muheim, M Mukherjee, M Mulder, D Müller, K Müller, CH Murphy, D Murray, P Muzzetto, P Naik, T Nakada, R Nandakumar, T Nanut, I Nasteva, M Needham, I Neri, N Neri, S Neubert, N Neufeld, R Newcombe, TD Nguyen, C Nguyen-Mau, EM Niel, S Nieswand, N Nikitin, NS Nolte, C Nunez, A Oblakowska-Mucha, V Obraztsov, DP O'Hanlon, R Oldeman, CJG Onderwater, A Ossowska, JM Otalora Goicochea, T Ovsiannikova, P Owen, A Oyanguren, B Pagare, PR Pais, T Pajero, A Palano, M Palutan, Y Pan, G Panshin, A Papanestis, M Pappagallo, LL Pappalardo, C Pappenheimer, W Parker, C Parkes, CJ Parkinson, B Passalacqua, G Passaleva, A Pastore, M Patel, C Patrignani, CJ Pawley, A Pearce, A Pellegrino, M Pepe Altarelli, S Perazzini, D Pereima, P Perret, K Petridis, A Petrolini, A Petrov, S Petrucci, M Petruzzo, A Philippov, L Pica, M Piccini, B Pietrzyk, G Pietrzyk, M Pili, D Pinci, J Pinzino, F Pisani, A Piucci, Resmi P K, V Placinta, S Playfer, J Plews, M Plo Casasus, F Polci, M Poli Lener, M Poliakova, A Poluektov, N Polukhina, I Polyakov, E Polycarpo, GJ Pomery, S Ponce, A Popov, D Popov, S Popov, S Poslavskii, K Prasanth, L Promberger, C Prouve, V Pugatch, A Puig Navarro, H Pullen, G Punzi, W Qian, J Qin, R Quagliani, B Quintana, NV Raab, RI Rabadan Trejo, B Rachwal, JH Rademacker, M Rama, M Ramos Pernas, MS Rangel, F Ratnikov, G Raven, M Reboud, F Redi, F Reiss, C Remon Alepuz, Z Ren, V Renaudin, R Ribatti, S Ricciardi, DS Richards, K Rinnert, P Robbe, A Robert, G Robertson, AB Rodrigues, E Rodrigues, JA Rodriguez Lopez, A Rollings, P Roloff, V Romanovskiy, M Romero Lamas, A Romero Vidal, JD Roth, M Rotondo, MS Rudolph, T Ruf, J Ruiz Vidal, A Ryzhikov, J Ryzka, JJ Saborido Silva, N Sagidova, N Sahoo, B Saitta, D Sanchez Gonzalo, C Sanchez Gras, C Sanchez Mayordomo, R Santacesaria, C Santamarina Rios, M Santimaria, E Santovetti, D Saranin, G Sarpis, M Sarpis, A Sarti, C Satriano, A Satta, M Saur, D Savrina, H Sazak, LG Scantlebury Smead, S Schael, M Schellenberg, M Schiller, H Schindler, M Schmelling, T Schmelzer, B Schmidt, O Schneider, A Schopper, M Schubiger, S Schulte, MH Schune, R Schwemmer, B Sciascia, A Sciubba, S Sellam, A Semennikov, M Senghi Soares, A Sergi, N Serra, J Serrano, L Sestini, A Seuthe, P Seyfert, DM Shangase, M Shapkin, I Shchemerov, L Shchutska, T Shears, L Shekhtman, V Shevchenko, EB Shields, E Shmanin, JD Shupperd, BG Siddi, R Silva Coutinho, G Simi, S Simone, I Skiba, N Skidmore, T Skwarnicki, MW Slater, JC Smallwood, JG Smeaton, A Smetkina, E Smith, M Smith, A Snoch, M Soares, L Soares Lavra, MD Sokoloff, FJP Soler, A Solovev, I Solovyev, FL Souza De Almeida, B Souza De Paula, B Spaan, E Spadaro Norella, P Spradlin, F Stagni, M Stahl, S Stahl, P Stefko, O Steinkamp, S Stemmle, O Stenyakin, H Stevens, S Stone, ME Stramaglia, M Straticiuc, D Strekalina, S Strokov, F Suljik, J Sun, L Sun, Y Sun, P Svihra, PN Swallow, K Swientek, A Szabelski, T Szumlak, M Szymanski, S Taneja, Z Tang, T Tekampe, F Teubert, E Thomas, KA Thomson, MJ Tilley, V Tisserand, S T'Jampens, M Tobin, S Tolk, L Tomassetti, D Torres Machado, DY Tou, M Traill, MT Tran, E Trifonova, C Trippl, A Tsaregorodtsev, G Tuci, A Tully, N Tuning, A Ukleja, DJ Unverzagt, A Usachov, A Ustyuzhanin, U Uwer, A Vagner, V Vagnoni, A Valassi, G Valenti, N Valls Canudas, M van Beuzekom, H Van Hecke, E van Herwijnen, CB Van Hulse, M van Veghel, R Vazquez Gomez, P Vazquez Regueiro, C Vázquez Sierra, S Vecchi, JJ Velthuis, M Veltri, A Venkateswaran, M Veronesi, M Vesterinen, D Vieira, M Vieites Diaz, H Viemann, X Vilasis-Cardona, E Vilella Figueras, P Vincent, G Vitali, A Vollhardt, D Vom Bruch, A Vorobyev, V Vorobyev, N Voropaev, R Waldi, J Walsh, C Wang, J Wang, J Wang, J Wang, J Wang, M Wang, R Wang, Y Wang, Z Wang, DR Ward, HM Wark, NK Watson, SG Weber, D Websdale, C Weisser, BDC Westhenry, DJ White, M Whitehead, D Wiedner, G Wilkinson, M Wilkinson, I Williams, M Williams, MRJ Williams, FF Wilson, W Wislicki, M Witek, L Witola, G Wormser, SA Wotton, H Wu, K Wyllie, Z Xiang, D Xiao, Y Xie, H Xing, A Xu, J Xu, L Xu, M Xu, Q Xu, Z Xu, Z Xu, D Yang, Y Yang, Z Yang, Z Yang, Y Yao, LE Yeomans, H Yin, J Yu, X Yuan, O Yushchenko, KA Zarebski, M Zavertyaev, M Zdybal, O Zenaiev, M Zeng, D Zhang, L Zhang, S Zhang, Y Zhang, A Zhelezov, Y Zheng, X Zhou, Y Zhou, X Zhu, V Zhukov, JB Zonneveld, S Zucchelli, D Zuliani, G Zunica, LHCb CollaborationAbstract:
The production of χ_{c1}(3872) and ψ(2S) hadrons is studied as a function of charged particle multiplicity in pp collisions at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 2 fb^{-1}. For both states, the fraction that is produced promptly at the collision vertex is found to decrease as charged particle multiplicity increases. The ratio of χ_{c1}(3872) to ψ(2S) cross sections for promptly produced particles is also found to decrease with multiplicity, while no significant dependence on multiplicity is observed for the equivalent ratio of particles produced away from the collision vertex in b-hadron decays. This behavior is consistent with a calculation that models the χ_{c1}(3872) structure as a compact tetraquark. Comparisons with model calculations and implications for the binding energy of the χ_{c1}(3872) state are discussed.Measurement of the CKM angle gamma in B-+/- -> DK +/- and B-+/- -> D pi(+/-) decays with D -> K(S)(0)h(+)h(-)
JOURNAL OF HIGH ENERGY PHYSICS (2021) ARTN 169
Authors:
R Aaij, C Abellan Beteta, B Adeva, M Adinolfi, CA Aidala, Z Ajaltouni, S Akar, P Albicocco, J Albrecht, F Alessio, M Alexander, A Alfonso Albero, G Alkhazov, P Alvarez Cartelle, Alves AA Jr, S Amato, S Amerio, Y Amhis, L An, L Anderlini, G Andreassi, M Andreotti, JE Andrews, F Archilli, P d'Argent, J Arnau Romeu, A Artamonov, M Artuso, K Arzymatov, E Aslanides, M Atzeni, B Audurier, S Bachmann, JJ Back, S Baker, V Balagura, W Baldini, A Baranov, RJ Barlow, GC Barrand, S Barsuk, W Barter, M Bartolini, F baryshnikov, V Batozskaya, B Batsukh, A Battig, V Battista, A Bay, J Beddow, F Bedeschi, I Bediaga, A Beiter, LJ Bel, S Belin, N Beliy, V Bellee, N Belloli, K Belous, I Belyaev, E Ben-Haim, G Bencivenni, S Benson, S Beranek, A Berezhnoy, R Bernet, D Berninghoff, E Bertholet, A Bertolin, C Betancourt, F Betti, MO Bettler, M van Beuzekom, Ia Bezshyiko, S Bhasin, J Bhom, S Bifani, P Billoir, A Birnkraut, A Bizzeti, M Bjorn, MP Blago, T Blake, F Blanc, S Blusk, D Bobulska, V Bocci, O Boente Garcia, T Boettcher, A Bondar, N Bondar, S Borghi, M Borisyak, M Borsato, F Bossu, M Boubdir, TJV Bowcock, C Bozzi, S Braun, M Brodski, J Brodzicka, A Brossa Gonzalo, D Brundu, E Buchanan, A Buonaura, C Burr, A Bursche, J Buytaert, W Byczynski, S Cadeddu, H Cai, R Calabrese, R Calladine, M Calvi, M Calvo Gomez, A Camboni, P Campana, DH Campora Perez, L Capriotti, A Carbone, G Carboni, R Cardinale, A Cardini, P Carniti, K Carvalho Akiba, G Casse, L Cassina, M Cattaneo, G Cavallero, R Cenci, D Chamont, MG Chapman, M Charles, Ph Charpentier, G Chatzikonstantinidis, M Chefdeville, V Chekalina, C Chen, S Chen, S-G Chitic, V Chobanova, M Chrzaszcz, A Chubykin, P Ciambrone, X Cid Vidal, G Ciezarek, F Cindolo, PEL Clarke, M Clemencic, HV Cliff, J Closier, V Coco, JAB Coelho, J Cogan, E Cogneras, L Cojocariu, P Collins, T Colombo, A Comerma-Montells, A Contu, G Coombs, S Coquereau, G Corti, M Corvo, CM Costa Sobral, B Couturier, GA Cowan, DC Craik, A Crocombe, M Cruz Torres, R Currie, C D'Ambrosio, F Da Cunha Marinho, CL Da Silva, E Dall'Occo, J Dalseno, A Danilina, A Davis, O De Aguiar Francisco, K De Bruyn, S De Capua, M De Cian, JM De Miranda, L De Paula, M De Serio, P De Simone, CT Dean, D Decamp, L Del Buono, B Delaney, H-P Dembinski, M Demmer, A Dendek, D Derkach, O Deschamps, F Desse, F Dettori, B Dey, A Di Canto, P Di Nezza, S Didenko, H Dijkstra, F Dordei, M Dorigo, A Dosil Suarez, L Douglas, A Dovbnya, K Dreimanis, L Dufour, G Dujany, P Durante, JM Durham, D Dutta, R Dzhelyadin, M Dziewiecki, A Dziurda, A Dzyuba, S Easo, U Egede, V Egorychev, S Eidelman, S Eisenhardt, U Eitschberger, R Ekelhof, L Eklund, S Ely, A Ene, S Escher, S Esen, T Evans, A Falabella, N Farley, S Farry, D Fazzini, P Fernandez Declara, A Fernandez Prieto, F Ferrari, L Ferreira Lopes, F Ferreira Rodrigues, M Ferro-Luzzi, S Filippov, RA Fini, M Fiorini, M Firlej, C Fitzpatrick, T Fiutowski, F Fleuret, M Fontana, F Fontanelli, R Forty, V Franco Lima, M Frank, C Frei, J Fu, W Funk, C Farber, M Feo, E Gabriel, A Gallas Torreira, D Galli, S Gallorini, S Gambetta, Y Gan, M Gandelman, P Gandini, Y Gao, LM Garcia Martin, B Garcia Plana, J Garcia Pardinas, J Garra Tico, L Garrido, D Gascon, C Gaspar, L Gavardi, G Gazzoni, D Gerick, E Gersabeck, M Gersabeck, T Gershon, D Gerstel, Ph Ghez, V Gibson, OG Girard, P Gironella Gironell, L Giubega, K Gizdov, VV Gligorov, D Golubkov, A Golutvin, A Gomes, IV Gorelov, C Gotti, E Govorkova, JP Grabowski, R Graciani Diaz, LA Granado Cardoso, E Grauges, E Graverini, G Graziani, A Grecu, R Greim, P Griffith, L Grillo, L Gruber, BR Gruberg Cazon, O Gruenberg, C Gu, E Gushchin, A Guth, Yu Guz, T Gys, C Gobel, T Hadavizadeh, C Hadjivasiliou, G Haefeli, C Haen, SC Haines, B Hamilton, X Han, TH Hancock, S Hansmann-Menzemer, N Harnew, T Harrison, C Hasse, M Hatch, J He, M Hecker, K Heinicke, A Heister, K Hennessy, L Henry, E van Herwijnen, J Heuel, M Hess, A Hicheur, R Hidalgo Charman, D Hill, M Hilton, PH Hopchev, J Hu, W Hu, W Huang, ZC Huard, W Hulsbergen, T Humair, M Hushchyn, D Hutchcroft, D Hynds, P Ibis, M Idzik, P Ilten, A Inglessi, A Inyakin, K Ivshin, R Jacobsson, J Jalocha, E Jans, BK Jashal, A Jawahery, F Jiang, M John, D Johnson, CR Jones, C Joram, B Jost, N Jurik, S Kandybei, M Karacson, JM Kariuki, S Karodia, N Kazeev, M Kecke, F Keizer, M Kelsey, M Kenzie, T Ketel, E Khairullin, B Khanji, C Khurewathanakul, KE Kim, T Kirn, VS Kirsebom, S Klaver, K Klimaszewski, T Klimkovich, S Koliiev, M Kolpin, R Kopecna, P Koppenburg, I Kostiuk, S Kotriakhova, M Kozeiha, L Kravchuk, M Kreps, F Kress, P Krokovny, W Krupa, W Krzemien, W Kucewicz, M Kucharczyk, V Kudryavtsev, AK Kuonen, T Kvaratskheliya, D Lacarrere, G Lafferty, A Lai, D Lancierini, G Lanfranchi, C Langenbruch, T Latham, C Lazzeroni, R Le Gac, Le At, R Lefevre, F Lemaitre, O Leroy, T Lesiak, B Leverington, P-R Li, Y Li, Z Li, X Liang, T Likhomanenko, R Lindner, F Lionetto, V Lisovskyi, G Liu, X Liu, D Loh, A Loi, I Longstaff, JH Lopes, GH Lovell, D Lucchesi, M Lucio Martinez, A Lupato, E Luppi, O Lupton, A Lusiani, X Lyu, F Machefert, F Maciuc, V Macko, P Mackowiak, S Maddrell-Mander, O Maev, K Maguire, D Maisuzenko, MW Majewski, S Malde, B Malecki, A Malinin, T Maltsev, G Manca, G Mancinelli, D Marangotto, J Maratas, JF Marchand, U Marconi, C Marin Benito, M Marinangeli, P Marino, J Marks, PJ Marshall, G Martellotti, M Martinelli, D Martinez Santos, F Martinez Vidal, A Massafferri, M Materok, R Matev, A Mathad, Z Mathe, C Matteuzzi, A Mauri, E Maurice, B Maurin, M McCann, A Mcnab, R McNulty, JV Mead, B Meadows, C Meaux, N Meinert, D Melnychuk, M Merk, A Merli, E Michielin, DA Milanes, E Millard, M-N Minard, L Minzoni, DS Mitzel, A Mogini, RD Moise, T Mombaecher, IA Monroy, S Monteil, M Morandin, G Morello, MJ Morello, O Morgunova, J Moron, AB Morris, R Mountain, F Muheim, M Mukherjee, M Mulder, CH Murphy, D Murray, A Moedden, D Mueller, J Mueller, K Mueller, V Mueller, P Naik, T Nakada, R Nandakumar, A Nandi, T Nanut, I Nasteva, M Needham, N Neri, S Neubert, N Neufeld, R Newcombe, TD Nguyen, C Nguyen-Mau, S Nieswand, R Niet, N Nikitin, A Nogay, NS Nolte, DP O'Hanlon, A Oblakowska-Mucha, V Obraztsov, R Oldeman, CJG Onderwater, A Ossowska, JM Otalora Goicochea, T Ovsiannikova, P Owen, A Oyanguren, PR Pais, T Pajero, A Palano, M Palutan, G Panshin, A Papanestis, M Pappagallo, LL Pappalardo, W Parker, C Parkes, G Passaleva, A Pastore, M Patel, C Patrignani, A Pearce, A Pellegrino, G Penso, M Pepe Altarelli, S Perazzini, D Pereima, P Perret, L Pescatore, K Petridis, A Petrolini, A Petrov, S Petrucci, M Petruzzo, B Pietrzyk, G Pietrzyk, M Pikies, M Pili, D Pinci, J Pinzino, F Pisani, A Piucci, V Placinta, S Playfer, J Plews, M Plo Casasus, F Polci, M Poli Lener, A Poluektov, N Polukhina, I Polyakov, E Polycarpo, GJ Pomery, S Ponce, A Popov, D Popov, S Poslavskii, E Price, J Prisciandaro, C Prouve, V Pugatch, A Puig Navarro, H Pullen, G Punzi, W Qian, J Qin, R Quagliani, B Quintana, NV Raab, B Rachwal, JH Rademacker, M Rama, M Ramos Pernas, MS Rangel, F Ratnikov, G Raven, M Ravonel Salzgeber, M Reboud, F Redi, S Reichert, AC dos Reis, F Reiss, C Remon Alepuz, Z Ren, V Renaudin, S Ricciardi, S Richards, K Rinnert, P Robbe, A Robert, AB Rodrigues, E Rodrigues, JA Rodriguez Lopez, M Roehrken, S Roiser, A Rollings, V Romanovskiy, A Romero Vidal, M Rotondo, MS Rudolph, T Ruf, J Ruiz Vidal, JJ Saborido Silva, N Sagidova, B Saitta, V Salustino Guimaraes, C Sanchez Gras, C Sanchez Mayordomo, B Sanmartin Sedes, R Santacesaria, C Santamarina Rios, M Santimaria, E Santovetti, G Sarpis, A Sarti, C Satriano, A Satta, M Saur, D Savrina, S Schael, M Schellenberg, M Schiller, H Schindler, M Schmelling, T Schmelzer, B Schmidt, O Schneider, A Schopper, HF Schreiner, M Schubiger, S Schulte, MH Schune, R Schwemmer, B Sciascia, A Sciubba, A Semennikov, ES Sepulveda, A Sergi, N Serra, J Serrano, L Sestini, A Seuthe, P Seyfert, M Shapkin, Y Shcheglov, T Shears, L Shekhtman, V Shevchenko, E Shmanin, BG Siddi, R Silva Coutinho, L Silva de Oliveira, G Simi, S Simone, I Skiba, N Skidmore, T Skwarnicki, MW Slater, JG Smeaton, E Smith, IT Smith, M Smith, M Soares, L Soares Lavra, MD Sokoloff, FJP Soler, B Souza De Paula, B Spaan, E Spadaro Norella, P Spradlin, F Stagni, M Stahl, S Stahl, P Stefko, S Stefkova, O Steinkamp, S Stemmle, O Stenyakin, M Stepanova, H Stevens, A Stocchi, S Stone, B Storaci, S Stracka, ME Stramaglia, M Straticiuc, U Straumann, S Strokov, J Sun, L Sun, Y Sun, K Swientek, A Szabelski, T Szumlak, M Szymanski, S T'Jampens, Z Tang, A Tayduganov, T Tekampe, G Tellarini, F Teubert, E Thomas, J van Tilburg, MJ Tilley, V Tisserand, M Tobin, S Tolk, L Tomassetti, D Tonelli, DY Tou, R Tourinho Jadallah Aoude, E Tournefier, M Traill, MT Tran, A Trisovic, A Tsaregorodtsev, G Tuci, A Tully, N Tuning, A Ukleja, A Usachov, A Ustyuzhanin, U Uwer, A Vagner, V Vagnoni, A Valassi, S Valat, G Valenti, R Vazquez Gomez, P Vazquez Regueiro, S Vecchi, M van Veghel, JJ Velthuis, M Veltri, G Veneziano, A Venkateswaran, M Vernet, M Veronesi, M Vesterinen, JV Viana Barbosa, D Vieira, M Vieites Diaz, H Viemann, X Vilasis-Cardona, A Vitkovskiy, M Vitti, V Volkov, A Vollhardt, D Vom Bruch, B Voneki, A Vorobyev, V Vorobyev, N Voropaev, JA de Vries, C Vazquez Sierra, R Waldi, J Walsh, J Wang, M Wang, Y Wang, Z Wang, DR Ward, HM Wark, NK Watson, D Websdale, A Weiden, C Weisser, M Whitehead, G Wilkinson, M Wilkinson, I Williams, MRJ Williams, M Williams, T Williams, FF Wilson, M Winn, W Wislicki, M Witek, G Wormser, SA Wotton, K Wyllie, D Xiao, Y Xie, A Xu, M Xu, Q Xu, Z Xu, Z Xu, Z Yang, Z Yang, Y Yao, LE Yeomans, H Yin, J Yu, X Yuan, O Yushchenko, KA Zarebski, M Zavertyaev, D Zhang, L Zhang, WC Zhang, Y Zhang, A Zhelezov, Y Zheng, X Zhu, V Zhukov, JB Zonneveld, S Zucchelli, LHCb CollaborationMeasurements of e+e-→ηcπ+π-π0, ηcπ+π-, and ηcπ0γ at s from 4.18 to 4.60 GeV, and search for a Zc state close to the DD¯ threshold decaying to ηcπ at s=4.23 GeV
Physical Review D American Physical Society (APS) 103:3 (2021) 032006