Fragmentation of J/ψ in jets in pp collisions at s=5.02TeV

CMS Collaboration

doi:10.1016/j.nuclphysa.2018.09.049

Fragmentation of J/ψ in jets in pp collisions at s=5.02TeV

CMS Collaboration

Research output: Contribution to journal › Article › peer-review

Abstract

The fragmentation of jets containing a J/ψ meson is studied in s=5.02TeV pp data using an integrated luminosity of L=27.39pb⁻¹. The fraction of the jet transverse momentum p_T,jet carried by the J/ψ is measured for prompt J/ψ and J/ψ coming from b hadron decays, named nonprompt. Whereas the fragmentation function of nonprompt J/ψ is well-modeled by simulations using a Monte Carlo generator, the prompt J/ψ are found to be accompanied by a larger level of jet activity. The fraction of J/ψ mesons that are produced inside a jet is also reported, and found to be larger in data than in simulation, for both prompt and nonprompt J/ψ.

Original language	English
Pages (from-to)	186-188
Number of pages	3
Journal	Nuclear Physics A
Volume	982
DOIs	https://doi.org/10.1016/j.nuclphysa.2018.09.049
Publication status	Published - Feb 2019
Externally published	Yes

Keywords

CMS
J/ψ
Jets
pp collisions

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10.1016/j.nuclphysa.2018.09.049

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@article{a81fd00600ca4cf48e84a7ce09ac276f,

title = "Fragmentation of J/ψ in jets in pp collisions at s=5.02TeV",

abstract = "The fragmentation of jets containing a J/ψ meson is studied in s=5.02TeV pp data using an integrated luminosity of L=27.39pb−1. The fraction of the jet transverse momentum pT,jet carried by the J/ψ is measured for prompt J/ψ and J/ψ coming from b hadron decays, named nonprompt. Whereas the fragmentation function of nonprompt J/ψ is well-modeled by simulations using a Monte Carlo generator, the prompt J/ψ are found to be accompanied by a larger level of jet activity. The fraction of J/ψ mesons that are produced inside a jet is also reported, and found to be larger in data than in simulation, for both prompt and nonprompt J/ψ.",

keywords = "CMS, J/ψ, Jets, pp collisions",

author = "{CMS Collaboration} and Batoul Diab",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2019",

month = feb,

doi = "10.1016/j.nuclphysa.2018.09.049",

language = "English",

volume = "982",

pages = "186--188",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

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TY - JOUR

T1 - Fragmentation of J/ψ in jets in pp collisions at s=5.02TeV

AU - CMS Collaboration

AU - Diab, Batoul

PY - 2019/2

Y1 - 2019/2

N2 - The fragmentation of jets containing a J/ψ meson is studied in s=5.02TeV pp data using an integrated luminosity of L=27.39pb−1. The fraction of the jet transverse momentum pT,jet carried by the J/ψ is measured for prompt J/ψ and J/ψ coming from b hadron decays, named nonprompt. Whereas the fragmentation function of nonprompt J/ψ is well-modeled by simulations using a Monte Carlo generator, the prompt J/ψ are found to be accompanied by a larger level of jet activity. The fraction of J/ψ mesons that are produced inside a jet is also reported, and found to be larger in data than in simulation, for both prompt and nonprompt J/ψ.

AB - The fragmentation of jets containing a J/ψ meson is studied in s=5.02TeV pp data using an integrated luminosity of L=27.39pb−1. The fraction of the jet transverse momentum pT,jet carried by the J/ψ is measured for prompt J/ψ and J/ψ coming from b hadron decays, named nonprompt. Whereas the fragmentation function of nonprompt J/ψ is well-modeled by simulations using a Monte Carlo generator, the prompt J/ψ are found to be accompanied by a larger level of jet activity. The fraction of J/ψ mesons that are produced inside a jet is also reported, and found to be larger in data than in simulation, for both prompt and nonprompt J/ψ.

KW - CMS

KW - J/ψ

KW - Jets

KW - pp collisions

UR - http://www.scopus.com/inward/record.url?scp=85060168320&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysa.2018.09.049

DO - 10.1016/j.nuclphysa.2018.09.049

M3 - Article

SN - 0375-9474

VL - 982

SP - 186

EP - 188

JO - Nuclear Physics A

JF - Nuclear Physics A

ER -

Fragmentation of J/ψ in jets in pp collisions at s=5.02TeV

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Keywords

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