# Publications

## Characterization of nuclear effects in muon-neutrino scattering on hydrocarbon with a measurement of final-state kinematics and correlations in charged-current pionless interactions at T2K

Phys. Rev. D98 (2019) 3

K Abe, others

## Measurements of Higgs boson properties in the diphoton decay channel with 36 fb(-1) of pp collision data at root s=13 TeV with the ATLAS detector

PHYSICAL REVIEW D 98 (2018) ARTN 052005

## Search for low-mass dijet resonances using trigger-level jets with the ATLAS detector in pp collisions at √s=13 TeV

Physical Review Letters American Physical Society 121 (2018) 081801

KJ Anderson, A Andreazza, V Andrei, S Angelidakis, I Angelozzi, A Angerami, AV Anisenkov, A Annovi, C Antel, MT Anthony, M Antonelli, DJA Antrim, ATH Arce, RE Ardell, FA Arduh, J-F Arguin, S Argyropoulos, O Arnaez, O Arslan, A Artamonov, G Artoni, S Artz, S Asai, N Asbah, EM Asimakopoulou

Searches for dijet resonances with sub-TeV masses using the ATLAS detector at the Large Hadron Collider can be statistically limited by the bandwidth available to inclusive single-jet triggers, whose data-collection rates at low transverse momentum are much lower than the rate from standard model multijet production. This Letter describes a new search for dijet resonances where this limitation is overcome by recording only the event information calculated by the jet trigger algorithms, thereby allowing much higher event rates with reduced storage needs. The search targets low-mass dijet resonances in the range 450–1800 GeV. The analyzed data set has an integrated luminosity of up to 29.3 fb−1 and was recorded at a center-of-mass energy of 13 TeV. No excesses are found; limits are set on Gaussian-shaped contributions to the dijet mass distribution from new particles and on a model of dark-matter particles with axial-vector couplings to quarks.

## First results from the DEAP-3600 dark matter search with argon at SNOLAB

Physical Review Letters American Physical Society 121 (2018) 071801-

P-A Amaudruz, M Baldwin, B Beltran, CE Bina, D Bishop, J Bonatt, G Boorman, Boulay, B Broerman, T Bromwich, R Gagnon, P Giampa, VV Golovko, P Gorel, R Gornea, R Hakobyan, A Hall, AL Hallin, M Hamstra, PJ Harvey, M Kuźniak, S Langrock, FL Zia, B Lehnert, J Lidgard

This paper reports the first results of a direct dark matter search with the DEAP-3600 single-phase liquid argon (LAr) detector. The experiment was performed 2 km underground at SNOLAB (Sudbury, Canada) utilizing a large target mass, with the LAr target contained in a spherical acrylic vessel of 3600 kg capacity. The LAr is viewed by an array of PMTs, which would register scintillation light produced by rare nuclear recoil signals induced by dark matter particle scattering. An analysis of 4.44 live days (fiducial exposure of 9.87 tonne-days) of data taken with the nearly full detector during the initial filling phase demonstrates the detector performance and the best electronic recoil rejection using pulse-shape discrimination in argon, with leakage $&lt;1.2\times 10^{-7}$ (90% C.L.) between 16 and 33 keV$_{ee}$. No candidate signal events are observed, which results in the leading limit on WIMP-nucleon spin-independent cross section on argon, $&lt;1.2\times 10^{-44}$ cm$^2$ for a 100 GeV/c$^2$ WIMP mass (90% C.L.).

## Measurements of b-jet tagging efficiency with the ATLAS detector using t(t)over-bar events at root s=13 TeV

JOURNAL OF HIGH ENERGY PHYSICS (2018) ARTN 089

## Search for flavor-changing neutral currents in top quark decays t -> Hc and t -> Hu in multilepton final states in proton-proton collisions at root s=13 TeV with the ATLAS detector

PHYSICAL REVIEW D 98 (2018) ARTN 032002

## Search for Higgs bosons produced via vector-boson fusion and decaying into bottom quark pairs in root s=13 TeV pp collisions with the ATLAS detector

PHYSICAL REVIEW D 98 (2018) ARTN 052003

## Combined measurement of differential and total cross sections in the H → γγ and the H → ZZ⁎ → 4ℓ decay channels at s=13 TeV with the ATLAS detector

Physics Letters B Elsevier 786 (2018) 114-133

BS Acharya, S Adachi, L Adamczyk, J Adelman, C Agheorghiesei, JA Aguilar-Saavedra, F Ahmadov, G Aielli, J Albert, P Albicocco, MJA Alconada Verzini, S Alderweireldt, B Ali, G Alimonti, J Alison, SP Alkire, A Alonso, F Alonso, C Alpigiani, AA Alshehri, YA Amaral Coutinho, L Ambroz, C Amelung, D Amidei, CF Anders

A combined measurement of differential and inclusive total cross sections of Higgs boson production is performed using 36.1 fb−1 of 13 TeV proton–proton collision data produced by the LHC and recorded by the ATLAS detector in 2015 and 2016. Cross sections are obtained from measured H→γγ and H→ZZ⁎→4ℓ event yields, which are combined taking into account detector efficiencies, resolution, acceptances and branching fractions. The total Higgs boson production cross section is measured to be 57.0−5.9+6.0 (stat.) −3.3+4.0 (syst.) pb, in agreement with the Standard Model prediction. Differential cross-section measurements are presented for the Higgs boson transverse momentum distribution, Higgs boson rapidity, number of jets produced together with the Higgs boson, and the transverse momentum of the leading jet. The results from the two decay channels are found to be compatible, and their combination agrees with the Standard Model predictions.

## Observation of H→bb¯ decays and VH production with the ATLAS detector

Physics Letters B Elsevier 786 (2018) 59-86

M Aaboud, G Aad, B Abbott, L Ambroz, G Artoni, M Backes, AJ Barr, L Beresford, D Bortoletto, J Burr, AM Cooper-Sarkar, JA Frost, EJ Gallas, E Schopf, A Sharma, IPJ Shipsey, B Stanislaus, C Tosciri, JC-L Tseng, GHA Viehhauser, L Vigani, AR Weidberg, G Zemaityte, M Zgubic, E al.

A search for the decay of the Standard Model Higgs boson into a bb¯ pair when produced in association with a W or Z boson is performed with the ATLAS detector. The data, corresponding to an integrated luminosity of 79.8fb−1 were collected in proton–proton collisions during Run 2 of the Large Hadron Collider at a centre-of-mass energy of 13TeV. For a Higgs boson mass of 125GeV, an excess of events over the expected background from other Standard Model processes is found with an observed (expected) significance of 4.9 (4.3) standard deviations. A combination with the results from other searches in Run 1 and in Run 2 for the Higgs boson in the bb¯ decay mode is performed, which yields an observed (expected) significance of 5.4 (5.5) standard deviations, thus providing direct observation of the Higgs boson decay into b-quarks. The ratio of the measured event yield for a Higgs boson decaying into bb¯ to the Standard Model expectation is 1.01±0.12(stat.)−0.15+0.16(syst.). Additionally, a combination of Run 2 results searching for the Higgs boson produced in association with a vector boson yields an observed (expected) significance of 5.3 (4.8) standard deviations.

## Search for supersymmetry in final states with charm jets and missing transverse momentum in 13 TeV pp collisions with the ATLAS detector

JOURNAL OF HIGH ENERGY PHYSICS (2018) ARTN 050

## Search for pair production of heavy vector-like quarks decaying into high-(PT) W bosons and top quarks in the lepton-plus-jets final state in pp collisions at root s=13 TeV with the ATLAS detector

JOURNAL OF HIGH ENERGY PHYSICS (2018) ARTN 048

## Search for top squarks decaying to tau sleptons in pp collisions at root s=13 TeV with the ATLAS detector

PHYSICAL REVIEW D 98 (2018) ARTN 032008

## Search for CP Violation in Neutrino and Antineutrino Oscillations by the T2K Experiment with $2.2\times10^21$ Protons on Target

Phys. Rev. Lett. 121 (2018) 17

K Abe, others

## Measurement of the Higgs boson mass in the H -> ZZ* -> 4l and H -> gamma gamma channels with root s=13 TeV pp collisions using the ATLAS detector

PHYSICS LETTERS B Elsevier BV 784 (2018) 345-366

S Abidi, O AbouZeid, N Abraham, H Abramowicz, Y Abulaiti, B Acharya, L Adamczyk, M Aleksa, I Aleksandrov, C Alexa, G Alexander, T Alexopoulos, M Alhroob, B Ali, G Alimonti, J Alison, S Alkire, C Allaire, B Allbrooke, B Allen, P Allport, A Aloisio, A Alonso, F Alonso, C Alpigiani

© 2018 The Author The mass of the Higgs boson is measured in the H→ZZ⁎→4ℓ and in the H→γγ decay channels with 36.1 fb−1 of proton–proton collision data from the Large Hadron Collider at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector in 2015 and 2016. The measured value in the H→ZZ⁎→4ℓ channel is mHZZ⁎=124.79±0.37GeV, while the measured value in the H→γγ channel is mHγγ=124.93±0.40GeV. Combining these results with the ATLAS measurement based on 7 and 8 TeV proton–proton collision data yields a Higgs boson mass of mH=124.97±0.24GeV.

## Search for resonances in the mass distribution of jet pairs with one or two jets identified as b-jets in proton-proton collisions at root s=13 TeV with the ATLAS detector

Physical Review D American Physical Society 98 (2018) 032016-

EV Bouhova-Thacker, D Boumediene, C Bourdarios, SK Boutle, A Boveia, J Boyd, IR Boyko, AJ Bozson, J Bracinik, N Brahimi, A Brandt, G Brandt, O Brandt, F Braren, U Bratzler, B Brau, JE Brau, WDB Madden, K Brendlinger, AJ Brennan, D Bruncko, A Bruni, G Bruni, LS Bruni, N Bruscino

A search for new resonances decaying into jets containing b-hadrons in pp collisions with the ATLAS detector at the LHC is presented in the dijet mass range from 0.57 to 7 TeV. The data set corresponds to an integrated luminosity of up to 36.1 fb-1 collected in 2015 and 2016 at s=13 TeV. No evidence of a significant excess of events above the smooth background shape is found. Upper cross-section limits and lower limits on the corresponding signal mass parameters for several types of signal hypotheses are provided at 95% C.L. In addition, 95% C.L. upper limits are set on the cross sections for new processes that would produce Gaussian-shaped signals in the di-b-jet mass distributions.

## Search for heavy resonances decaying to a photon and a hadronically decaying Z/W/H boson in pp collisions at root s=13 TeV with the ATLAS detector

Physical Review D American Physical Society 98 (2018) 032015-

G Bertoli, IA Bertram, C Bertsche, M Bessner, A Betti, AJ Bevan, J Beyer, RMB Bianchi, O Biebel, D Biedermann, R Bielski, K Bierwagen, NV Biesuz, M Biglietti, TRV Billoud, C Bini, GJ Bobbink, VS Bobrovnikov, SS Bocchetta, A Bocci, C Bock, D Boerner, D Bogavac, V Christodoulou, MC Chu

Many extensions of the Standard Model predict new resonances decaying to a Z, W, or Higgs boson and a photon. This paper presents a search for such resonances produced in pp collisions at s=13 TeV using a data set with an integrated luminosity of 36.1 fb-1 collected by the ATLAS detector at the LHC. The Z/W/H bosons are identified through their decays to hadrons. The data are found to be consistent with the Standard Model expectation in the entire investigated mass range. Upper limits are set on the production cross section times branching fraction for resonance decays to Z/W+γ in the mass range from 1.0 to 6.8 TeV and for the first time into H+γ in the mass range from 1.0 to 3.0 TeV.

## Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the llbb final state in pp collisions at root s=13 TeV with the ATLAS detector

PHYSICS LETTERS B 783 (2018) 392-414

## Search for supersymmetry in events with four or more leptons in root s=13 TeV pp collisions with ATLAS

PHYSICAL REVIEW D 98 (2018) ARTN 032009

## Measurement of jet fragmentation in Pb plus Pb and pp collisions at root S-NN=5.02 TeV with the ATLAS detector

PHYSICAL REVIEW C 98 (2018) ARTN 024908

## Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector

PHYSICS LETTERS B 784 (2018) 173-191