Modification of χ c 1 ( 3872 ) and ψ ( 2 S ) Production in p Pb Collisions at s NN = 8.16     TeV

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doi:10.1103/PhysRevLett.132.242301

Modification of $χ_{c 1} (3872)$ and $ψ (2 S)$ Production in $p Pb$ Collisions at $\sqrt{s_{NN}} = 8.16 TeV$

Journal Article · Thu Jun 13 00:00:00 EDT 2024 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.132.242301· OSTI ID:2473488

; ; Abellan Beteta, C.; ; ; ; ; ; ; ; Ajaltouni, Z.; ; ; ; ; ; ; ; ; more »

The LHCb Collaboration measures production of the exotic hadron $χ_{c 1} (3872)$ in proton-nucleus collisions for the first time. Comparison with the charmonium state $ψ (2 S)$ suggests that the exotic $χ_{c 1} (3872)$ experiences different dynamics in the nuclear medium than conventional hadrons, and comparison with data from proton-proton collisions indicates that the presence of the nucleus may modify $χ_{c 1} (3872)$ production rates. This is the first measurement of the nuclear modification factor of an exotic hadron.

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Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI ID:: 2473488

Alternate ID(s):: OSTI ID: 2426797

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 132; ISSN 0031-9007; ISSN PRLTAO

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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