Search for the e + e − → ϕ χ c 1 ( 3872 ) process at BESIII

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doi:10.1103/PhysRevD.110.L031103

Search for the $e^{+} e^{-} \to ϕ χ_{c 1} (3872)$ process at BESIII

Journal Article · Tue Aug 13 00:00:00 EDT 2024 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.110.L031103· OSTI ID:2473596

Ablikim, M.; Achasov, M. N.; Adlarson, P.; Afedulidis, O.; Ai, X. C.; Aliberti, R.; Amoroso, A.; An, Q.; Bai, Y.; Bakina, O.; Balossino, I.; Ban, Y.; Bao, H. -R.; Batozskaya, V.; Begzsuren, K.; Berger, N.; Berlowski, M.; Bertani, M.; Bettoni, D.; Bianchi, F. more »

Based on $368.5 p b^{- 1}$ of $e^{+} e^{-}$ collision data collected at center-of-mass energies 4.914 and 4.946 GeV by the BESIII detector, the $e^{+} e^{-} \to ϕ χ_{c 1} (3872)$ process is searched for the first time. No significant signal is observed and the upper limits at the 90% confidence level on the product of the Born cross section $σ (e^{+} e^{-} \to ϕ χ_{c 1} (3872))$ and the branching fraction $B [χ_{c 1} (3872) \to π^{+} π^{-} J / ψ]$ at 4.914 and 4.946 GeV are set to be 0.85 and 0.96 pb, respectively. These measurements provide useful information for the production of the $χ_{c 1} (3872)$ at $e^{+} e^{-}$ colliders and deepen our understanding about the nature of this particle.

Published by the American Physical Society 2024

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Sponsoring Organization:: USDOE

Grant/Contract Number:: FG02-05ER41374

OSTI ID:: 2473596

Alternate ID(s):: OSTI ID: 2579584

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 3 Vol. 110; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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