Path integral treatment of coherence effects in charmonium production in nuclear ultra-peripheral collisions - INSPIRE

DataBETA

Path integral treatment of coherence effects in charmonium production in nuclear ultra-peripheral collisions

Oct 2, 2024

6 pages

Published in:

PoS ICHEP2024 (2025) 505

Contribution to:

- ICHEP2024
, 505
,
- ICHEP2024

Published: Dec 17, 2024

e-Print:

2410.01668 [hep-ph]

DOI:

10.22323/1.476.0505

View in:

ADS Abstract Service

reference search0 citations

Citations per year

0 Citations

Abstract: (SISSA)

We present for the first time a revised study of charmonium production in nuclear ultra-peripheral collisions (UPC) based on a rigorous Green function formalism. This formalism allows for the proper incorporation of the effects of color transparency, as well as the quantum coherence inherent in the higher twist quark shadowing related to the

Q\bar Q

Fock component of the photon. The significance of this effect gradually decreases towards forward and/or backward rapidities. In the LHC kinematic region we additionally incorporate within the same formalism the leading twist gluon shadowing correctionsrelated to higher multi-gluon photon fluctuations. They represent a dominant source of nuclear phenomena in the mid-rapidity region. Model predictions for the rapidity distributions

d\sigma/dy

are in good agreement with available UPC data on coherent charmonium production at RHIC and the LHC. They can also be verified by future measurements at the LHC, as well as at EIC.

Note:

6 pages, 2 figures. Presented at the 42nd International Conference on High Energy Physics (ICHEP24), Prague, Czech Republic, July 18-24, 2024. Will be published in Proceedings of Science

References(20)

Figures(6)

[1]

Physics of ultra-peripheral nuclear collisions

- Ann.Rev.Nucl.Part.Sci. 55 (2005) 271-310
•
e-Print:
- nucl-ex/0502005
•
DOI:
- 10.1146/annurev.nucl.55.090704.151526

[2]

Color transparency versus quantum coherence in electroproduction of vector mesons off nuclei

B.Z. Kopeliovich
(
- Heidelberg, Max Planck Inst. and
- Regensburg U. and
- Dubna, JINR
)
,
J. Nemchik
(
- Kosice, IEF
)
,
A. Schafer
(
- Regensburg U.
)
,
A.V. Tarasov
(
- Heidelberg, Max Planck Inst. and
- Regensburg U. and
- Dubna, JINR
)

- Phys.Rev.C 65 (2002) 035201
•
e-Print:
- hep-ph/0107227
•
DOI:
- 10.1103/PhysRevC.65.035201

[3]

Coherent photo- and electroproduction of charmonia on nuclear targets revisited: Green function formalism

J. Nemchik
(
- Prague, Tech. U. and
- Kosice, IEF and
- Kosice U.
)
,
J. Óbertová
(
- Prague, Tech. U.
)

- Phys.Rev.D 110 (2024) 5, 054015
•
e-Print:
- 2407.02219
•
DOI:
- 10.1103/PhysRevD.110.054015

[4]

On the Structure of Wave Functions of Mesons as Bound States of Relativistic Quarks

M.V. Terentev
(
- Moscow, ITEP
)

- Sov.J.Nucl.Phys. 24 (1976) 106,
- Yad.Fiz. 24 (1976) 207-213

[4]

On the Structure of Wave Functions of Mesons as Bound States of Relativistic Quarks

M.V. Terentev
(
- Moscow, ITEP
)

- Sov.J.Nucl.Phys. 24 (1976) 106,
- Yad.Fiz. 24 (1976) 207-213

[5]

Quarks: Currents and constituents

H.J. Melosh
(
- Caltech
)

- Phys.Rev.D 9 (1974) 1095
•
DOI:
- 10.1103/PhysRevD.9.1095

[6]

Nonperturbative effects in gluon radiation and photoproduction of quark pairs

Boris Z. Kopeliovich
(
- Heidelberg, Max Planck Inst. and
- Dubna, JINR
)
,
Andreas Schafer
(
- Regensburg U.
)
,
Alexander V. Tarasov
(
- Heidelberg, Max Planck Inst. and
- Dubna, JINR and
- Regensburg U.
)

- Phys.Rev.D 62 (2000) 054022
•
e-Print:
- hep-ph/9908245
•
DOI:
- 10.1103/PhysRevD.62.054022

[7]

Obtaining Real Parts of Scattering Amplitudes Directly from Cross-Section Data Using Derivative Analyticity Relations

- Phys.Lett.B 49 (1974) 272-276
•
DOI:
- 10.1016/0370-2693(74)90432-8

[8]

Color dipole phenomenology of diffractive electroproduction of light vector mesons at HERA

J. Nemchik
(
- Turin U. and
- INFN, Turin and
- Kosice, IEF
)
,
Nikolai N. Nikolaev
(
- Julich, Forschungszentrum and
- Landau Inst.
)
,
E. Predazzi
(
- Turin U. and
- INFN, Turin
)
,
B.G. Zakharov
(
- Turin U. and
- INFN, Turin and
- Landau Inst.
)

- Z.Phys.C 75 (1997) 71-87
•
e-Print:
- hep-ph/9605231
•
DOI:
- 10.1007/s002880050448

[9]

Color dipoles and rho, phi electroproduction

Jeffrey R. Forshaw
(
- Manchester U.
)
,
R. Sandapen
(
- Manchester U. and
- Laval U.
)
,
Graham Shaw
(
- Manchester U.
)

- Phys.Rev.D 69 (2004) 094013
•
e-Print:
- hep-ph/0312172
•
DOI:
- 10.1103/PhysRevD.69.094013

[10]

Coherent J/ $\psi$ photoproduction at forward rapidity in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}=5.02$ TeV

ALICE

Collaboration

•

Shreyasi Acharya
(
- Calcutta, VECC
)

et al.

- Phys.Lett.B 798 (2019) 134926
•
e-Print:
- 1904.06272
•
DOI:
- 10.1016/j.physletb.2019.134926

[10]

Coherent $J/\psi$ and $\psi'$ photoproduction at midrapidity in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}~=~5.02$ TeV

ALICE

Collaboration

•

Shreyasi Acharya
(
- Calcutta, VECC
)

et al.

- Eur.Phys.J.C 81 (2021) 8, 712
•
e-Print:
- 2101.04577
•
DOI:
- 10.1140/epjc/s10052-021-09437-6

[11]

Study of coherent $J/\psi$ production in lead-lead collisions at $\sqrt{s_{\rm NN}} =5\ \rm{TeV}$ with the LHCb experiment

LHCb

Collaboration

•

A. Bursche
(
- CERN
)

for the collaboration.

- Nucl.Phys.A 982 (2019) 247-250
•
DOI:
- 10.1016/j.nuclphysa.2018.10.069

[12]

Study of exclusive photoproduction of charmonium in ultra-peripheral lead-lead collisions

LHCb

Collaboration

•

R. Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 06 (2023) 146
•
e-Print:
- 2206.08221
•
DOI:
- 10.1007/JHEP06(2023)146

[13]

Probing Small Bjorken- $x$ Nuclear Gluonic Structure via Coherent $J / ψ$ Photoproduction in Ultraperipheral Pb-Pb Collisions at $\sqrt{s_{NN}} = 5.02 TeV$

CMS

Collaboration

•

Armen Tumasyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.Lett. 131 (2023) 26, 262301
•
e-Print:
- 2303.16984
•
DOI:
- 10.1103/PhysRevLett.131.262301

[14]

Coherence phenomena in charmonium production off nuclei at the energies of RHIC and LHC

Boris Kopeliovich
(
- Heidelberg, Max Planck Inst. and
- Regensburg U. and
- Dubna, JINR
)
,
Alexander Tarasov
(
- Heidelberg, Max Planck Inst. and
- Regensburg U. and
- Dubna, JINR
)
,
Jorg Hufner
(
- Heidelberg, Max Planck Inst. and
- Heidelberg U.
)

- Nucl.Phys.A 696 (2001) 669-714
•
e-Print:
- hep-ph/0104256
•
DOI:
- 10.1016/S0375-9474(01)01220-9

[15]

A FIT of Upsilon and Charmonium Spectra

Andre Martin
(
- CERN
)

- Phys.Lett.B 93 (1980) 338-342
•
DOI:
- 10.1016/0370-2693(80)90527-4

[16]

FINE - HYPERFINE SPLITTINGS OF QUARKONIUM LEVELS IN AN EFFECTIVE POWER LAW POTENTIAL

N. Barik
(
- Utkal U.
)
,
S.N. Jena
(
- Utkal U.
)

- Phys.Lett.B 97 (1980) 265-268
•
DOI:
- 10.1016/0370-2693(80)90598-5

[17]

Quarkonia and Quantum Chromodynamics

W. Buchmuller
(
- Fermilab
)
,
S.H.H. Tye
(
- Cornell U., LNS
)

- Phys.Rev.D 24 (1981) 132
•
DOI:
- 10.1103/PhysRevD.24.132

[18]

Saturation model of DIS : an update

Krzysztof Golec-Biernat
(
- Cracow, INP and
- Rzeszow U.
)
,
Sebastian Sapeta
(
- Cracow, INP
)

- JHEP 03 (2018) 102
•
e-Print:
- 1711.11360
•
DOI:
- 10.1007/JHEP03(2018)102