Nuclear modification of Y states in PbPb - INSPIRE

DataBETA

Nuclear modification of Y states in PbPb

CMS

Collaboration

2015

12 pages

Report number:

CMS-PAS-HIN-15-001

Experiments:

CERN-LHC-CMS

View in:

CERN Document Server

reference search18 citations

Citations per year

Abstract:

Yields of

\Upsilon

(1S),

\Upsilon

(2S) and

\Upsilon

(3S) mesons are measured in the CMS experiment via their

\mu^+ \mu^-

decays, for bottomonium rapidity

|y|<2.4

, in PbPb and pp collisions at the same energy,

\sqrt{s_{\rm NN}} = 2.76

~TeV. The CMS detector was used to collect integrated luminosity of 166~

\mu

b

^{-1}

for PbPb and 5.4~pb

^{-1}

for pp, corresponding to a similar total number of nucleon-nucleon collisions. Differential cross sections and nuclear modification factors are reported as functions of rapidity and transverse momentum, as well as collision centrality, for the

\Upsilon

(1S) and the

\Upsilon

(2S). By comparing to the yield in pp collisions scaled by the number of inelastic nucleon-nucleon collisions, a strong, centrality-dependent suppression is observed in PbPb collisions, by up to a factor of 2 and 10, for the

\Upsilon

(1S) and the

\Upsilon

(2S), respectively. No significant dependences are observed as functions of rapidity or transverse momentum. The

\Upsilon

(3S) was not observed in PbPb collisions, being suppressed by more than 7 at the 95\% confidence level.

Note:

Preliminary results

Data
yield
meson
suppression
nucleus
lead
differential cross section
bottomonium
quarkonium
muon

References(26)

Figures(9)

[1]

Thermodynamics and in medium hadron properties from lattice QCD

F. Karsch
(
- Bielefeld U.
)
,
E. Laermann
(
- Bielefeld U.
)

•
e-Print:
- hep-lat/0305025

[2]

Theory of Hadronic Plasma

Edward V. Shuryak
(
- Novosibirsk, IYF
)

- Sov.Phys.JETP 47 (1978) 212-219,
- Zh.Eksp.Teor.Fiz. 74 (1978) 408-420

[3]

$J/\psi$ Suppression by Quark-Gluon Plasma Formation

T. Matsui
(
- MIT, LNS
)
,
H. Satz
(
- Bielefeld U. and
- Brookhaven
)

- Phys.Lett.B 178 (1986) 416-422
•
DOI:
- 10.1016/0370-2693(86)91404-8

[4]

Color screening melts quarkonium

Agnes Mocsy
(
- RIKEN BNL
)
,
Peter Petreczky
(
- Brookhaven
)

- Phys.Rev.Lett. 99 (2007) 211602
•
e-Print:
- 0706.2183
•
DOI:
- 10.1103/PhysRevLett.99.211602

[5]

Enhanced $J/\psi$ production in deconfined quark matter

- Phys.Rev.C 63 (2001) 054905
•
e-Print:
- hep-ph/0007323
•
DOI:
- 10.1103/PhysRevC.63.054905

[6]

Statistical hadronization of heavy quarks in ultra-relativistic nucleus-nucleus collisions

A. Andronic
(
- Darmstadt, GSI
)
,
P. Braun-Munzinger
(
- Darmstadt, GSI and
- Darmstadt, Tech. Hochsch.
)
,
K. Redlich
(
- Wroclaw U.
)
,
J. Stachel
(
- Heidelberg U.
)

- Nucl.Phys.A 789 (2007) 334-356
•
e-Print:
- nucl-th/0611023
•
DOI:
- 10.1016/j.nuclphysa.2007.02.013

[7]

Charmonium suppression by Comover scattering in Pb + Pb collisions

Sean Gavin
(
- Brookhaven
)
,
Ramona Vogt
(
- LBL, Berkeley and
- UC, Davis
)

- Phys.Rev.Lett. 78 (1997) 1006-1009
•
e-Print:
- hep-ph/9606460
•
DOI:
- 10.1103/PhysRevLett.78.1006

[8]

J / psi and psi-prime suppression in heavy ion collisions

- Phys.Lett.B 393 (1997) 431-436
•
e-Print:
- hep-ph/9607265
•
DOI:
- 10.1016/S0370-2693(96)01650-4

[9]

Cold Nuclear Matter Effects on $J/\psi$ and $\Upsilon$ Production at the LHC

R. Vogt
(
- UC, Davis
)

- Phys.Rev.C 81 (2010) 044903
•
e-Print:
- 1003.3497
•
DOI:
- 10.1103/PhysRevC.81.044903

[10]

Bottomonia in the Quark-Gluon Plasma and their Production at RHIC and LHC

A. Emerick
(
- Minnesota U.
)
,
X. Zhao
(
- Iowa State U.
)
,
R. Rapp
(
- Texas A-M, Cyclotron Inst. and
- Texas A-M
)

- Eur.Phys.J.A 48 (2012) 72
•
e-Print:
- 1111.6537
•
DOI:
- 10.1140/epja/i2012-12072-y

[11]

Suppression of Non-Prompt $J/\psi$ , Prompt $J/\psi$ , and Y(1S) in PbPb Collisions at $\sqrt{s_{NN}}=2.76$ TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 05 (2012) 063
•
e-Print:
- 1201.5069
•
DOI:
- 10.1007/JHEP05(2012)063

[12]

Indications of suppression of excited $\Upsilon$ states in PbPb collisions at $\sqrt{S_{NN}}$ = 2.76 TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.Lett. 107 (2011) 052302
•
e-Print:
- 1105.4894
•
DOI:
- 10.1103/PhysRevLett.107.052302

[13]

Observation of Sequential Upsilon Suppression in PbPb Collisions

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.Lett. 109 (2012) 222301,
- Phys.Rev.Lett. 120 (2018) 19, 199903 (erratum)
•
e-Print:
- 1208.2826
•
DOI:
- 10.1103/PhysRevLett.109.222301

[14]

Production of inclusive $\Upsilon$ (1S) and $\Upsilon$ (2S) in p-Pb collisions at $\mathbf{\sqrt{s_{{\rm NN}}} = 5.02}$ TeV

ALICE

Collaboration

•

Betty Bezverkhny Abelev
(
- LLNL, Livermore
)

et al.

- Phys.Lett.B 740 (2015) 105-117
•
e-Print:
- 1410.2234
•
DOI:
- 10.1016/j.physletb.2014.11.041

[15]

Study of $\Upsilon$ production and cold nuclear matter effects in $p$ Pb collisions at $\sqrt{s_{NN}}$ =5 TeV

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 07 (2014) 094
•
e-Print:
- 1405.5152
•
DOI:
- 10.1007/JHEP07(2014)094

[16]

Event Activity Dependence of Y(nS) Production in $\sqrt{s_{NN}}$ =5.02 TeV pPb and $\sqrt{s}$ =2.76 TeV pp Collisions

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 04 (2014) 103
•
e-Print:
- 1312.6300
•
DOI:
- 10.1007/JHEP04(2014)103

[17]

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

[18]

Measurement of momentum scale and resolution using low-mass resonances and cosmic ray muons

CMS Collaboration

Collaboration

[19]

Observation and studies of jet quenching in PbPb collisions at nucleon-nucleon center-of-mass energy = 2.76 TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.C 84 (2011) 024906
•
e-Print:
- 1102.1957
•
DOI:
- 10.1103/PhysRevC.84.024906

[20]

Luminosity Calibration for the 2013 Proton-Lead and Proton-Proton Data Taking

CMS

Collaboration

[21]

Glauber modeling in high energy nuclear collisions

- Ann.Rev.Nucl.Part.Sci. 57 (2007) 205-243
•
e-Print:
- nucl-ex/0701025
•
DOI:
- 10.1146/annurev.nucl.57.090506.123020

[22]

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

[23]

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

M. Oreglia
(
- SLAC
)

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

[24]

Measurement of the $\Upsilon(1S), \Upsilon(2S)$ , and $\Upsilon(3S)$ Cross Sections in $pp$ Collisions at $\sqrt{s}$ = 7 TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Lett.B 727 (2013) 101-125
•
e-Print:
- 1303.5900
•
DOI:
- 10.1016/j.physletb.2013.10.033

[25]

Review of Particle Physics

et al.

- Chin.Phys.C 38 (2014) 090001
•
DOI:
- 10.1088/1674-1137/38/9/090001

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2
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