Production of prompt and nonprompt ${\rm J}\hspace{-.08em}/\hspace{-.14em}\psi$ mesons in jets in pp collisions at $\sqrt{s} = 5.02~\mathrm{TeV}$

Production of prompt and nonprompt ${\rm J}\hspace{-.08em}/\hspace{-.14em}\psi$ mesons in jets in pp collisions at $\sqrt{s} = 5.02~\mathrm{TeV}$

CMS

Collaboration

2018

Report number:

CMS-PAS-HIN-18-012

Experiments:

CERN-LHC-CMS

View in:

CERN Document Server

pdf

reference search13 citations

Citations per year

Abstract:

The fragmentation of jets containing a

{\rm J}\hspace{-.08em}/\hspace{-.14em}\psi

meson is studied in low pile-up pp data recorded in 2015, at a center-of-mass energy of

\sqrt{s} = 5.02~\mathrm{TeV}

. The fraction of the jet transverse momentum

p_{\rm T,jet}

taken by the

{\rm J}\hspace{-.08em}/\hspace{-.14em}\psi

is measured for both prompt and nonprompt

{\rm J}\hspace{-.08em}/\hspace{-.14em}\psi

mesons. The value of

p_{\rm T,jet}

is restricted to the range of 25 -- 35 GeV. The

{\rm J}\hspace{-.08em}/\hspace{-.14em}\psi

mesons are measured above 3 and 6.5 GeV, in the endcap and barrel regions of the CMS detector, respectively. Whereas the results for nonprompt

{\rm J}\hspace{-.08em}/\hspace{-.14em}\psi

are well-modeled by simulations using a Monte Carlo generator, the prompt

{\rm J}\hspace{-.08em}/\hspace{-.14em}\psi

are found to be accompanied by a larger level of jet activity. The fraction of

{\rm J}\hspace{-.08em}/\hspace{-.14em}\psi

mesons that are found to be inside a jet within the

p_{\rm T,jet}

selection is also reported, and found to be larger than simulation, for both prompt and nonprompt

{\rm J}\hspace{-.08em}/\hspace{-.14em}\psi

.

Note:

Preliminary results

Data
p p: colliding beams
J/psi(3100): hadroproduction
jet: transverse momentum
J/psi(3100): transverse momentum
jet: fragmentation
p p: scattering
numerical calculations: Monte Carlo
pile-up
CMS

References(28)

Figures(10)

[1]

Heavy-flavour and quarkonium production in the LHC era: from proton–proton to heavy-ion collisions

A. Andronic
(
- Darmstadt, EMMI
)
,
F. Arleo
(
- Ecole Polytechnique and
- Annecy, LAPTH
)
,
R. Arnaldi
(
- INFN, Turin
)
,
A. Beraudo
(
- INFN, Turin
)
,
E. Bruna
(
- INFN, Turin
)

et al.

- Eur.Phys.J.C 76 (2016) 3, 107
•
e-Print:
- 1506.03981
•
DOI:
- 10.1140/epjc/s10052-015-3819-5

[2]

Heavy Quarkonium: Progress, Puzzles, and Opportunities

N. Brambilla
(
- Munich, Tech. U.
)
,
S. Eidelman
(
- Novosibirsk State U. and
- Novosibirsk, IYF
)
,
B.K. Heltsley
(
- Cornell U., Phys. Dept.
)
,
R. Vogt
(
- UC, Davis and
- LLNL, Livermore
)
,
G.T. Bodwin
(
- Argonne
)

et al.

- Eur.Phys.J.C 71 (2011) 1534
•
e-Print:
- 1010.5827
•
DOI:
- 10.1140/epjc/s10052-010-1534-9

[3]

$J/\psi$ polarization in $pp$ collisions at $\sqrt{s}=7$ TeV

ALICE

Collaboration

•

Betty Abelev
(
- LLNL, Livermore
)

et al.

- Phys.Rev.Lett. 108 (2012) 082001
•
e-Print:
- 1111.1630
•
DOI:
- 10.1103/PhysRevLett.108.082001

[4]

Measurement of the Prompt $J/\psi$ and $\psi$ (2S) Polarizations in $pp$ Collisions at $\sqrt{s}$ = 7 TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Lett.B 727 (2013) 381-402
•
e-Print:
- 1307.6070
•
DOI:
- 10.1016/j.physletb.2013.10.055

[5]

Measurement of $J/\psi$ polarization in $pp$ collisions at $\sqrt{s}=7$ TeV

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Eur.Phys.J.C 73 (2013) 11, 2631
•
e-Print:
- 1307.6379
•
DOI:
- 10.1140/epjc/s10052-013-2631-3

[6]

Quenching of Hadron Spectra in Heavy Ion Collisions at the LHC

François Arleo
(
- Ecole Polytechnique
)

- Phys.Rev.Lett. 119 (2017) 6, 062302
•
e-Print:
- 1703.10852
•
DOI:
- 10.1103/PhysRevLett.119.062302

[7]

On similarity of jet quenching and charmonia suppression

Martin Spousta
(
- Charles U.
)

- Phys.Lett.B 767 (2017) 10-15
•
e-Print:
- 1606.00903
•
DOI:
- 10.1016/j.physletb.2017.01.041

[8]

Study of J/ψ Production in Jets

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.Lett. 118 (2017) 19, 192001
•
e-Print:
- 1701.05116
•
DOI:
- 10.1103/PhysRevLett.118.192001

[9]

The CMS trigger system

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- JINST 12 (2017) 01, P01020
•
e-Print:
- 1609.02366
•
DOI:
- 10.1088/1748-0221/12/01/P01020

[10]

The CMS Experiment at the CERN LHC

CMS

Collaboration

•

S. Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JINST 3 (2008) S08004
•
DOI:
- 10.1088/1748-0221/3/08/S08004

[11]

Description and performance of track and primary-vertex reconstruction with the CMS tracker

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JINST 9 (2014) 10, P10009
•
e-Print:
- 1405.6569
•
DOI:
- 10.1088/1748-0221/9/10/P10009

[12]

The anti- $k_t$ jet clustering algorithm

- JHEP 04 (2008) 063
•
e-Print:
- 0802.1189
•
DOI:
- 10.1088/1126-6708/2008/04/063

[13]

FastJet User Manual

Matteo Cacciari
(
- Paris, LPTHE and
- Diderot U., Paris
)
,
Gavin P. Salam
(
- CERN and
- Princeton U. and
- Paris, LPTHE
)
,
Gregory Soyez
(
- Saclay, SPhT
)

- Eur.Phys.J.C 72 (2012) 1896
•
e-Print:
- 1111.6097
•
DOI:
- 10.1140/epjc/s10052-012-1896-2

[14]

An introduction to PYTHIA 8.2

et al.

- Comput.Phys.Commun. 191 (2015) 159-177
•
e-Print:
- 1410.3012
•
DOI:
- 10.1016/j.cpc.2015.01.024

[15]

GEANT4 - A Simulation Toolkit

GEANT4

Collaboration

•

S. Agostinelli
(
- Genoa U.
)

et al.

- Nucl.Instrum.Meth.A 506 (2003) 250-303
•
DOI:
- 10.1016/S0168-9002(03)01368-8

[16]

The EvtGen particle decay simulation package

D.J. Lange
(
- LLNL, Livermore
)

- Nucl.Instrum.Meth.A 462 (2001) 152-155
•
DOI:
- 10.1016/S0168-9002(01)00089-4

[17]

Performance of CMS Muon Reconstruction in $pp$ Collision Events at $\sqrt{s}=7$ TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JINST 7 (2012) P10002
•
e-Print:
- 1206.4071
•
DOI:
- 10.1088/1748-0221/7/10/P10002

[18]

Particle-flow reconstruction and global event description with the CMS detector

CMS

Collaboration

•

A.M. Sirunyan

et al.

- JINST 12 (2017) 10, P10003
•
e-Print:
- 1706.04965
•
DOI:
- 10.1088/1748-0221/12/10/P10003

[19]

Review of Particle Physics

C. Patrignani
(
- Bologna U. and
- INFN, Bologna
)
,
K. Agashe
(
- Maryland U.
)
,
G. Aielli
(
- U. Rome 2, Tor Vergata (main)
)
,
C. Amsler
(
- U. Bern, AEC and
- Stefan Meyer Inst. Subatomare Phys.
)
,
M. Antonelli
(
- Frascati
)

et al.

- Chin.Phys.C 40 (2016) 10, 100001
•
DOI:
- 10.1088/1674-1137/40/10/100001

[20]

Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- JINST 12 (2017) 02, P02014
•
e-Print:
- 1607.03663
•
DOI:
- 10.1088/1748-0221/12/02/P02014

[21]

Measurement of the anti-B0 and B- meson lifetimes

ALEPH

Collaboration

•

D. Buskulic
(
- Annecy, LAPP
)

et al.

- Phys.Lett.B 307 (1993) 194-208,
- Phys.Lett.B 325 (1994) 537-538 (erratum)
•
DOI:
- 10.1016/0370-2693(93)90211-Y

[22]

A Study of the Reactions $\psi^\prime \to \gamma \gamma \psi$

M. Oreglia
(
- SLAC
)

- SLAC Stanford - SLAC-236 (80,REC.APR. 81) 226p

[23]

SPlot: A Statistical tool to unfold data distributions

Muriel Pivk
(
- CERN
)
,
Francois R. Le Diberder
(
- Orsay, LAL
)

- Nucl.Instrum.Meth.A 555 (2005) 356-369
•
e-Print:
- physics/0402083
•
DOI:
- 10.1016/j.nima.2005.08.106

[24]

Measurement of prompt and nonprompt charmonium suppression in $\text {PbPb}$ collisions at 5.02 $\,\text {Te}\text {V}$

CMS

Collaboration

•

Albert M. Sirunyan
(
- Yerevan Phys. Inst.
)

et al.

- Eur.Phys.J.C 78 (2018) 6, 509,
- Eur.Phys.J.C 83 (2023) 145 (erratum)
•
e-Print:
- 1712.08959
•
DOI:
- 10.1140/epjc/s10052-018-5950-6

[25]

Measurements of Inclusive $W$ and $Z$ Cross Sections in $pp$ Collisions at $\sqrt{s}=7$ TeV

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 01 (2011) 080
•
e-Print:
- 1012.2466
•
DOI:
- 10.1007/JHEP01(2011)080

1-25 of 28
1
2
25 / page

Production of prompt and nonprompt J/ψ{\rm J}\hspace{-.08em}/\hspace{-.14em}\psiJ/ψ mesons in jets in pp collisions at s=5.02 TeV\sqrt{s} = 5.02~\mathrm{TeV}s​=5.02 TeV

Citations per year

Production of prompt and nonprompt ${\rm J}\hspace{-.08em}/\hspace{-.14em}\psi$ mesons in jets in pp collisions at $\sqrt{s} = 5.02~\mathrm{TeV}$