Intrinsic charm and the D + − D − asymmetry produced in proton-proton collisions

Lykasov, G. I.; Sorokovikov, M. N.; Brodsky, S. J.

doi:10.1103/PhysRevD.111.074035

Intrinsic charm and the $D^{+} - D^{-}$ asymmetry produced in proton-proton collisions

Journal Article · Mon Apr 28 00:00:00 EDT 2025 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.111.074035· OSTI ID:2563489

; ;

We investigate the contribution of the charm-anticharm ( $c \bar{c}$ ) asymmetry of the proton eigenstate obtained from QCD lattice gauge to the asymmetry of $D^{+}, D^{-}$ and $D^{0}, {\bar{D}}^{0}$ mesons produced in $p p$ collisions at large Feynman variables $x$ . It is shown that an important tool for establishing the intrinsic charm (IC) content of the proton is the charm hadron-antihadron asymmetry formed in $p p$ collisions. Predictions for the asymmetry as a function of $x$ for different IC probabilities are presented. We show that the interference of the intrinsic $| u u d c \bar{c} ⟩$ Fock state with the standard contribution from the perturbative QCD evolution leads to a large $D^{+} D^{-}$ asymmetry at large Feynman $x$ .

Published by the American Physical Society 2025

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Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 2563489

Alternate ID(s):: OSTI ID: 2575404

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 7 Vol. 111; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

References (35)

Charmed particle production in hadron-hadron collisions Arakelyan, G. H.; Volkovitsky, P. E. Zeitschrift f�r Physik A Hadrons and Nuclei, Vol. 353, Issue 1 https://doi.org/10.1007/BF01297731	journal	March 1995
Hadronic mass-relations from topological expansion and string model Kaidalov, A. B. Zeitschrift f�r Physik C Particles and Fields, Vol. 12, Issue 1 https://doi.org/10.1007/BF01475732	journal	March 1982
Charm hadron properties in 400 GeV/cpp interactions Aguilar-Benitez, M.; Allison, W. W. M.; Bailly, J. L. Zeitschrift f�r Physik C Particles and Fields, Vol. 40, Issue 3 https://doi.org/10.1007/BF01548848	journal	September 1988
Inclusive spectra of baryons in the quark-gluon strings model Kaidalov, A. B.; Piskunova, O. I. Zeitschrift für Physik C Particles and Fields, Vol. 30, Issue 1 https://doi.org/10.1007/BF01560688	journal	March 1986
CT14 intrinsic charm parton distribution functions from CTEQ-TEA global analysis Hou, Tie-Jiun; Dulat, Sayipjamal; Gao, Jun Journal of High Energy Physics, Vol. 2018, Issue 2 https://doi.org/10.1007/JHEP02(2018)059	journal	February 2018
Dual parton model Capella, A. Physics Reports, Vol. 236, Issue 4-5 https://doi.org/10.1016/0370-1573(94)90064-7	journal	January 1994
On the particle multiplicity distributions at high energy Ter-Martirosyan, K. A. Physics Letters B, Vol. 44, Issue 4 https://doi.org/10.1016/0370-2693(73)90411-5	journal	May 1973
Large N expansion in dual models Veneziano, G. Physics Letters B, Vol. 52, Issue 2 https://doi.org/10.1016/0370-2693(74)90095-1	journal	September 1974
The intrinsic charm of the proton Brodsky, S. J.; Hoyer, P.; Peterson, C. Physics Letters B, Vol. 93, Issue 4 https://doi.org/10.1016/0370-2693(80)90364-0	journal	June 1980
The quark-gluon structure of the pomeron and the rise of inclusive spectra at high energies Kaidalov, A. B. Physics Letters B, Vol. 116, Issue 6 https://doi.org/10.1016/0370-2693(82)90168-X	journal	October 1982
A planar diagram theory for strong interactions Hooft, G. 't Nuclear Physics B, Vol. 72, Issue 3 https://doi.org/10.1016/0550-3213(74)90154-0	journal	April 1974
Reanalysis of the EMC charm production data with extrinsic and intrinsic charm at NLO Harris, B. W.; Smith, J.; Vogt, R. Nuclear Physics B, Vol. 461, Issue 1-2 https://doi.org/10.1016/0550-3213(95)00652-4	journal	February 1996
Nucleon structure and hard p–p processes at high energies Lykasov, G. I.; Bednyakov, I. V.; Demichev, M. A. Nuclear Physics B - Proceedings Supplements, Vol. 245 https://doi.org/10.1016/j.nuclphysbps.2013.10.042	journal	December 2013
A kinematic condition on intrinsic charm Blümlein, Johannes Physics Letters B, Vol. 753 https://doi.org/10.1016/j.physletb.2015.12.068	journal	February 2016
Constraints on charm-anticharm asymmetry in the nucleon from lattice QCD Sufian, Raza Sabbir; Liu, Tianbo; Alexandru, Andrei Physics Letters B, Vol. 808 https://doi.org/10.1016/j.physletb.2020.135633	journal	September 2020
The persistent nonperturbative charm enigma Guzzi, Marco; Hobbs, T. J.; Xie, Keping Physics Letters B, Vol. 843 https://doi.org/10.1016/j.physletb.2023.137975	journal	August 2023
Evidence for intrinsic charm quarks in the proton No authors listed Nature, Vol. 608, Issue 7923 https://doi.org/10.1038/s41586-022-04998-2	journal	August 2022
Open heavy flavour production at high energies Shabelski, Yu. M. Surveys in High Energy Physics, Vol. 9, Issue 1 https://doi.org/10.1080/01422419508225681	journal	July 1995
Constraints on gluon distribution functions in the nucleon and nucleus from open charm hadron production at the Electron-Ion Collider Kelsey, Matthew; Cruz-Torres, Reynier; Dong, Xin Physical Review D, Vol. 104, Issue 5 https://doi.org/10.1103/PhysRevD.104.054002	journal	September 2021
Parton distributions need representative sampling Courtoy, Aurore; Huston, Joey; Nadolsky, Pavel Physical Review D, Vol. 107, Issue 3 https://doi.org/10.1103/PhysRevD.107.034008	journal	February 2023
Intrinsic charm quark valence distribution of the proton Ball, Richard D.; Candido, Alessandro; Cruz-Martinez, Juan Physical Review D, Vol. 109, Issue 9 https://doi.org/10.1103/PhysRevD.109.L091501	journal	May 2024
Intrinsic heavy-quark states Brodsky, S. J.; Peterson, C.; Sakai, N. Physical Review D, Vol. 23, Issue 11 https://doi.org/10.1103/PhysRevD.23.2745	journal	June 1981
Intrinsic charm component of the nucleon Navarra, F. S.; Nielsen, M.; Nunes, C. A. A. Physical Review D, Vol. 54, Issue 1 https://doi.org/10.1103/PhysRevD.54.842	journal	July 1996
Heavy quark mass expansion and intrinsic charm in light hadrons Franz, M.; Polyakov, M.; Goeke, K. Physical Review D, Vol. 62, Issue 7 https://doi.org/10.1103/PhysRevD.62.074024	journal	September 2000
Light-cone models for intrinsic charm and bottom Pumplin, Jon Physical Review D, Vol. 73, Issue 11 https://doi.org/10.1103/PhysRevD.73.114015	journal	June 2006
Charm parton content of the nucleon Pumplin, J.; Lai, H. L.; Tung, W. K. Physical Review D, Vol. 75, Issue 5 https://doi.org/10.1103/PhysRevD.75.054029	journal	March 2007
Study of Z Bosons Produced in Association with Charm in the Forward Region Aaij, R.; Abdelmotteleb, A. S. W.; Beteta, C. Abellán Physical Review Letters, Vol. 128, Issue 8 https://doi.org/10.1103/PhysRevLett.128.082001	journal	February 2022
Enhanced leading production of D ± and D * ± in 250 GeV π ± -nucleon interactions Alves, G. A.; Amato, S.; Anjos, J. C. Physical Review Letters, Vol. 72, Issue 6 https://doi.org/10.1103/PhysRevLett.72.812	journal	February 1994
Hadronic Spectrum of a Holographic Dual of QCD de Téramond, Guy F.; Brodsky, Stanley J. Physical Review Letters, Vol. 94, Issue 20 https://doi.org/10.1103/PhysRevLett.94.201601	journal	May 2005
The quark–gluon string model: soft and semihard hadronic processes Lykasov, G. I. Physics of Particles and Nuclei, Vol. 30, Issue 4 https://doi.org/10.1134/1.953111	journal	July 1999
Constraints on the intrinsic charm content of the proton from recent ATLAS data Bednyakov, V. A.; Brodsky, S. J.; Lipatov, A. V. The European Physical Journal C, Vol. 79, Issue 2 https://doi.org/10.1140/epjc/s10052-019-6605-y	journal	January 2019
Extraction and validation of a new set of CMS pythia8 tunes from underlying-event measurements Sirunyan, A. M.; Tumasyan, A.; Adam, W. The European Physical Journal C, Vol. 80, Issue 1 https://doi.org/10.1140/epjc/s10052-019-7499-4	journal	January 2020
A stress test of global PDF fits: closure testing the MSHT PDFs and a first direct comparison to the neural net approach Harland-Lang, L. A.; Cridge, T.; Thorne, R. S. The European Physical Journal C, Vol. 85, Issue 3 https://doi.org/10.1140/epjc/s10052-025-13934-3	journal	March 2025
A Review of the Intrinsic Heavy Quark Content of the Nucleon Brodsky, S. J.; Kusina, A.; Lyonnet, F. Advances in High Energy Physics, Vol. 2015 https://doi.org/10.1155/2015/231547	journal	January 2015
Nucleon sea and the five-quark components Peng, Jen-Chieh; Chang, Wen-Chen Proceedings of Sixth International Conference on Quarks and Nuclear Physics — PoS(QNP2012) https://doi.org/10.22323/1.157.0012	conference	October 2012

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