Publications by Sneha Malde


Partial wave analysis of psi(3686) -> K+ K- eta

PHYSICAL REVIEW D 101 (2020) 32008

M Ablikim, M Achasov, P Adlarson, S Ahmed, M Albrecht, M Alekseev, A Amoroso, F An, Q An, Y Bai, O Bakina, RB Ferroli, I Balossino, Y Ban, K Begzsuren, J Bennett, N Berger, M Bertani, D Bettoni, F Bianchi, J Biernat, J Bloms, I Boyko, R Briere, A Calcaterra

© 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP 3 . Using a sample of (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector, we perform the first partial wave analysis of ψ(3686)→K+K-η. In addition to the well established states, φ(1020), φ(1680), and K3∗(1780), contributions from X(1750), ρ(2150), ρ3(2250), and K2∗(1980) are also observed. The X(1750) state is determined to be a 1-resonance. The simultaneous observation of the φ(1680) and X(1750) indicates that the X(1750), with previous observations in photoproduction, is distinct from the φ(1680). The masses, widths, branching fractions of ψ(3686)→K+K-η, and the intermediate resonances are also measured.


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