Measurement of the Nuclear Modification Factor and Prompt Charged Particle Production in $p-Pb$ and $pp$ Collisions at $\sqrt {s_{NN}}$=5 TeV - INSPIRE

DataBETA

Measurement of the Nuclear Modification Factor and Prompt Charged Particle Production in $p-Pb$ and $pp$ Collisions at $\sqrt {s_{NN}}$ =5 TeV

LHCb

Collaboration

Aug 30, 2021

12 pages

Published in:

Phys.Rev.Lett. 128 (2022) 14, 142004

Published: Apr 7, 2022

e-Print:

2108.13115 [hep-ex]

DOI:

10.1103/PhysRevLett.128.142004 (publication)

Report number:

LHCb-PAPER-2021-015,
CERN-EP-2021-130

Experiments:

CERN-LHC-LHCb

View in:

reference search46 citations

Citations per year

Abstract: (APS)

The production of prompt charged particles in proton-lead collisions and in proton-proton collisions at the nucleon-nucleon center-of-mass energy

\sqrt{s_{N N}} = 5 TeV

is studied at LHCb as a function of pseudorapidity (

η

) and transverse momentum (

p_{T}

) with respect to the proton beam direction. The nuclear modification factor for charged particles is determined as a function of

η

between

- 4.8 < η < - 2.5

(backward region) and

2.0 < η < 4.8

(forward region), and

p_{T}

between

0.2 < p_{T} < 8.0 GeV / c

. The results show a suppression of charged particle production in proton-lead collisions relative to proton-proton collisions in the forward region and an enhancement in the backward region for

p_{T}

larger than

1.5 GeV / c

. This measurement constrains nuclear PDFs and saturation models at previously unexplored values of the parton momentum fraction down to

10^{- 6}

.

Note:

All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-015.html (LHCb public pages)

p nucleus: interaction
lead
charged particle: production
p p: scattering
parton: momentum
charged particle: suppression
parton: distribution function
nuclear matter: effect
saturation
transverse momentum dependence

References(55)

Figures(3)

[1]

Multihadron production at high energies in the model of quark gluon strings

A.B. Kaidalov
(
- Moscow, ITEP
)
,
K.A. Ter-Martirosyan
(
- Moscow, ITEP
)

- Sov.J.Nucl.Phys. 40 (1984) 135-140,
- Yad.Fiz. 40 (1984) 211-220

[2]

Dual parton model

A. Capella
(
- Orsay, LPT
)
,
U. Sukhatme
(
- Illinois U., Chicago
)
,
C-I Tan
(
- Brown U.
)
,
J. Tran Thanh Van
(
- Orsay, LPT
)

- Phys.Rept. 236 (1994) 225-329
•
DOI:
- 10.1016/0370-1573(94)90064-7

[3]

General-purpose event generators for LHC physics

Andy Buckley
(
- Edinburgh U.
)
,
Jonathan Butterworth
(
- University Coll. London
)
,
Stefan Gieseke
(
- KIT, Karlsruhe, TP
)
,
David Grellscheid
(
- Durham U., IPPP
)
,
Stefan Hoche
(
- SLAC
)

et al.

- Phys.Rept. 504 (2011) 145-233
•
e-Print:
- 1101.2599
•
DOI:
- 10.1016/j.physrep.2011.03.005

[4]

Constraints from the first LHC data on hadronic event generators for ultra-high energy cosmic-ray physics

David d'Enterria
(
- ICREA, Barcelona and
- ICC, Barcelona U. and
- CERN
)
,
Ralph Engel
(
- KIT, Karlsruhe
)
,
Tanguy Pierog
(
- KIT, Karlsruhe
)
,
Sergey Ostapchenko
(
- Norwegian U. Sci. Tech. and
- SINP, Moscow
)
,
Klaus Werner
(
- SUBATECH, Nantes
)

- Astropart.Phys. 35 (2011) 98-113
•
e-Print:
- 1101.5596
•
DOI:
- 10.1016/j.astropartphys.2011.05.002

[5]

The Muon Puzzle in cosmic-ray induced air showers and its connection to the Large Hadron Collider

Johannes Albrecht
(
- Dortmund U.
)
,
Lorenzo Cazon
(
- LIP, Lisbon
)
,
Hans Dembinski
(
- Dortmund U.
)
,
Anatoli Fedynitch
(
- Tokyo U., ICRR
)
,
Karl-Heinz Kampert
(
- Wuppertal U.
)

et al.

- Astrophys.Space Sci. 367 (2022) 3, 27
•
e-Print:
- 2105.06148
•
DOI:
- 10.1007/s10509-022-04054-5

[6]

Proton-Nucleus Collisions at the LHC: Scientific Opportunities and Requirements

C.A. Salgado
(
- Santiago de Compostela U.
)
,
J. Alvarez-Muniz
(
- Santiago de Compostela U.
)
,
F. Arleo
(
- Annecy, LAPTH
)
,
N. Armesto
(
- Santiago de Compostela U.
)
,
M. Botje
(
- NIKHEF, Amsterdam
)

et al.

- J.Phys.G 39 (2012) 015010
•
e-Print:
- 1105.3919
•
DOI:
- 10.1088/0954-3899/39/1/015010

[7]

Predictions for $p+$ Pb Collisions at sqrt s_NN = 5 TeV

J.L. Albacete
(
- Orsay, IPN
)
,
N. Armesto
(
- Santiago de Compostela U., IGFAE and
- Santiago de Compostela U.
)
,
R. Baier
(
- Bielefeld U.
)
,
G.G. Barnafoldi
(
- Wigner RCP, Budapest
)
,
J. Barrette
(
- McGill U.
)

et al.

- Int.J.Mod.Phys.E 22 (2013) 1330007
•
e-Print:
- 1301.3395
•
DOI:
- 10.1142/S0218301313300075

[8]

Predictions for Cold Nuclear Matter Effects in $p+$ Pb Collisions at $\sqrt{s_{_{NN}}} = 8.16$ TeV

Javier L. Albacete
(
- CAFPE, Granada and
- Granada U., Theor. Phys. Astrophys.
)
,
François Arleo
(
- Ecole Polytechnique
)
,
Gergely G. Barnaföldi
(
- Wigner RCP, Budapest
)
,
Gábor Bíró
(
- Wigner RCP, Budapest and
- Eotvos U.
)
,
David d'Enterria
(
- CERN
)

et al.

- Nucl.Phys.A 972 (2018) 18-85
•
e-Print:
- 1707.09973
•
DOI:
- 10.1016/j.nuclphysa.2017.11.015

[9]

Small System Collectivity in Relativistic Hadronic and Nuclear Collisions

James L. Nagle
(
- Colorado U.
)
,
William A. Zajc
(
- Columbia U.
)

- Ann.Rev.Nucl.Part.Sci. 68 (2018) 211-235
•
e-Print:
- 1801.03477
•
DOI:
- 10.1146/annurev-nucl-101916-123209

[10]

EPPS16: Nuclear parton distributions with LHC data

Kari J. Eskola
(
- Helsinki Inst. of Phys. and
- Jyvaskyla U.
)
,
Petja Paakkinen
(
- Jyvaskyla U.
)
,
Hannu Paukkunen
(
)
,
Carlos A. Salgado
(
- Santiago de Compostela U., IGFAE
)

- Eur.Phys.J.C 77 (2017) 3, 163
•
e-Print:
- 1612.05741
•
DOI:
- 10.1140/epjc/s10052-017-4725-9

[11]

nCTEQ15 - Global analysis of nuclear parton distributions with uncertainties in the CTEQ framework

K. Kovarik
(
- Munster U., ITP
)
,
A. Kusina
(
- LPSC, Grenoble
)
,
T. Jezo
(
- INFN, Milan Bicocca and
- Milan Bicocca U.
)
,
D.B. Clark
(
- Southern Methodist U.
)
,
C. Keppel
(
- Jefferson Lab
)

et al.

- Phys.Rev.D 93 (2016) 8, 085037
•
e-Print:
- 1509.00792
•
DOI:
- 10.1103/PhysRevD.93.085037

[12]

Global Analysis of Nuclear Parton Distributions

Daniel de Florian
(
- Buenos Aires U. and
- Zurich U.
)
,
Rodolfo Sassot
(
- Buenos Aires U.
)
,
Pia Zurita
(
- Buenos Aires U.
)
,
Marco Stratmann
(
- Brookhaven
)

- Phys.Rev.D 85 (2012) 074028
•
e-Print:
- 1112.6324
•
DOI:
- 10.1103/PhysRevD.85.074028

[13]

Multiple scattering effects on inclusive particle production in the large-x regime

Zhong-Bo Kang
(
- Los Alamos
)
,
Ivan Vitev
(
- Los Alamos
)
,
Hongxi Xing
(
- Los Alamos and
- Hua-Zhong Normal U. and
- Hefei, CUST
)

- Phys.Rev.D 88 (2013) 054010
•
e-Print:
- 1307.3557
•
DOI:
- 10.1103/PhysRevD.88.054010

[14]

Cronin effect in proton nucleus collisions: A Survey of theoretical models

Alberto Accardi
(
- Heidelberg U.
)

e-Print:
- hep-ph/0212148

[15]

Production of hadrons with large transverse momentum at 200, 300, and 400 GeV

E100

Collaboration

•

J.W. Cronin
(
- Chicago U., EFI
)

et al.

- Phys.Rev.D 11 (1975) 3105-3123
•
DOI:
- 10.1103/PhysRevD.11.3105

[16]

Nuclear enhancement of universal dynamics of high parton densities

- Phys.Rev.Lett. 100 (2008) 022303
•
e-Print:
- 0705.3047
•
DOI:
- 10.1103/PhysRevLett.100.022303

[17]

Gluon distribution functions for very large nuclei at small transverse momentum

Larry D. McLerran
(
- Minnesota U.
)
,
Raju Venugopalan
(
- Minnesota U.
)

- Phys.Rev.D 49 (1994) 3352-3355
•
e-Print:
- hep-ph/9311205
•
DOI:
- 10.1103/PhysRevD.49.3352

[18]

Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p–Pb collisions at sNN=8.16 TeV

ALICE

Collaboration

•

Shreyasi Acharya
(
- Calcutta, VECC
)

et al.

- Phys.Lett.B 827 (2022) 136943
•
e-Print:
- 2104.03116
•
DOI:
- 10.1016/j.physletb.2022.136943

[19]

Fully coherent energy loss effects on light hadron production in pA collisions

François Arleo
(
- Ecole Polytechnique
)
,
Florian Cougoulic
(
- Ohio State U.
)
,
Stéphane Peigné
(
- SUBATECH, Nantes
)

- JHEP 09 (2020) 190
•
e-Print:
- 2003.06337
•
DOI:
- 10.1007/JHEP09(2020)190

[20]

Single inclusive particle production at high energy from HERA data to proton-nucleus collisions

T. Lappi
(
- Helsinki Inst. of Phys. and
- Jyvaskyla U.
)
,
H. Mäntysaari
(
- Jyvaskyla U.
)

- Phys.Rev.D 88 (2013) 114020
•
e-Print:
- 1309.6963
•
DOI:
- 10.1103/PhysRevD.88.114020

[21]

Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC

ALICE

Collaboration

•

S. Acharya

et al.

- JHEP 11 (2018) 013
•
e-Print:
- 1802.09145
•
DOI:
- 10.1007/JHEP11(2018)013

[22]

Charged-particle nuclear modification factors in PbPb and pPb collisions at $\sqrt{s_{\mathrm{N}\;\mathrm{N}}}=5.02$ TeV

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 04 (2017) 039
•
e-Print:
- 1611.01664
•
DOI:
- 10.1007/JHEP04(2017)039

[23]

Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in $\sqrt{s_{NN}}=5.02$ TeV $p$ + Pb collisions measured by the ATLAS experiment

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Phys.Lett.B 763 (2016) 313-336
•
e-Print:
- 1605.06436
•
DOI:
- 10.1016/j.physletb.2016.10.053

[24]

On the evolution of the nuclear modification factors with rapidity and centrality in d + Au collisions at s(NN)**(1/2) = 200-GeV

BRAHMS

Collaboration

•

I. Arsene
(
- Bucharest U.
)

et al.

- Phys.Rev.Lett. 93 (2004) 242303
•
e-Print:
- nucl-ex/0403005
•
DOI:
- 10.1103/PhysRevLett.93.242303

[25]

Nuclear-modification factor of charged hadrons at forward and backward rapidity in $p+$ Al and $p+$ Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV

PHENIX

Collaboration

•

C. Aidala
(
- Michigan U.
)

et al.

- Phys.Rev.C 101 (2020) 3, 034910
•
e-Print:
- 1906.09928
•
DOI:
- 10.1103/PhysRevC.101.034910

1-25 of 55
1
2
3
25 / page