Associated production of $J/\psi$ and direct photon in the parton reggeization approach

L. E. Alimov   ; A. V. Karpishkov   ; V. A. Saleev

Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ, Tome 30 (2024) no. 4, pp. 116-132

Résumé

We study the associated $J/\psi$ and direct photon production in the high energy factorization, as it is formulated in the parton Reggeization approach, using two different models for the hadronization of a heavy quark-antiquark pair into a heavy quarkonium, namely the non-relativistic quantum chromodynamics (NRQCD) and the improved color evaporation model (ICEM). We find essential differences in predictions for cross section and transverse momenta spectra obtained using the NRQCD and the ICEM, which can be used for the discrimination between these models. Our prediction for cross sections of the associated $J/\psi$ and direct photon production at the LHC energies slightly overestimate the results early obtained in the next-to-leading order (NLO) calculation in the collinear parton model (CPM). We predict different two-particle correlation spectra in the associated $J/\psi$ and direct photon production which may be interesting for an experimental study.

Détail

Mots-clés : LHC
Keywords: charmonium, parton Reggeization approach, improved color evaporation model, non-relativistic quantum chromodynamics, color-singlet model, associated production.

Bibliographie

[1] Drees M., Kim C.S., “Associate $J/\psi+\gamma$ production: a clean probe of gluon densities”, Zeitschrift für Physik C Particles and Fields, 53:4 (1992), 673–678 | DOI

[2] Mehen T., “Testing quarkonium production with photoproduced $J/\psi+\gamma$”, Physical Review D, 55:7 (1997), 4338–4343 | DOI | MR

[3] Doncheski M.A., Kim C.S., “Associated $J/\psi+\gamma$ production as a probe of the polarized gluon distribution”, Physical Review D, 49:9 (1994), 4463–4468 | DOI

[4] J.-P. Lansberg et al., “Accessing the Transverse Dynamics and Polarization of Gluons inside the Proton at the LHC”, Physical Review Letters, 112:21 (2014), 212001 | DOI

[5] Butenschoen M., Kniehl B.A., “Next-to-leading order tests of nonrelativistic-QCD factorization with $J/\psi$ yield and polarization”, Modern Physics Letters A, 28:9 (2013), 1350027 | DOI

[6] Li R., Kniehl B.A., “Next-to-leading-order QCD corrections to $J/\psi (\Upsilon)+ \gamma$ production at the LHC”, Physics Letters B, 672:1 (2009), 51–55 | DOI

[7] Baier R., Rückl R., “Hadronic collisions: a quarkonium factory”, Zeitschrift für Physik C Particles and Fields, 19 (1983), 251–266 | DOI

[8] Berger E.L., Jones D., “Inelastic photoproduction of $J\psi$ and $\Upsilon$ by gluons”, Physical Review D, 23:7 (1981), 1521–1530 | DOI

[9] Bodwin G.T., Braaten E., Lepage G.P., “Rigorous QCD analysis of inclusive annihilation and production of heavy quarkonium”, Physical Review D, 51:3 (1995), 1125–1171 | DOI

[10] Fritzsch H., “Producing heavy quark flavors in hadronic collisions. A test of quantum chromodynamics”, Physics Letters B, 67:2 (1977), 217–221 | DOI

[11] Halzen F., “CVC for gluons and hadroproduction of quark flavours”, Physics Letters B, 69:1 (1977), 105–108 | DOI

[12] Ma Y.-Q., Vogt R., “Quarkonium Production in an Improved Color Evaporation Model”, Phys. Rev. D, 94:11 (2016), 114029 | DOI

[13] Collins J., Foundations of perturbative QCD, Cambridge University Press, Cambridge, 2011, 624 pp. | DOI | MR

[14] Collins J.C., Soper D.E., Sterman G., “Factorization of hard processes in QCD”, Adv. Ser. Direct. High Energy Phys., 5 (1989), 1–91 | DOI | Zbl

[15] Echevarria M.G., Kasemets T., Lansberg J.-P., Pisano C., Signori A., “Matching factorization theorems with an inverse-error weighting”, Physics Letters. Section B, 781 (2018), 161–168 | DOI | MR

[16] Nefedov M.A., Saleev V.A., “Shipilova A.V. Dijet azimuthal decorrelations at the LHC in the parton Reggeization approach”, Phys. Rev. D, 87:9 (2013), 094930 | DOI

[17] Karpishkov A.V., Nefedov M.A., Saleev V.A., “$B\bar{B}$ angular correlations at the LHC in parton Reggeization approach merged with higher-order matrix elements”, Phys. Rev. D, 96:9 (2017), 096019 | DOI

[18] Nefedov M.A., Saleev V.A., “High-energy factorization for the Drell-Yan process in $pp$ and $p\bar{p}$ collisions with new unintegrated PDFs”, Phys. Rev. D, 102:11 (2020), 114018 | DOI

[19] Kniehl B.A., Vasin D.V., Saleev V.A., “Charmonium production at high energy in the $k_T$-factorization approach”, Phys. Rev. D, 73:7 (2006), 074022 | DOI

[20] Saleev V.A., Nefedov M.A., Shipilova A.V., “Prompt $J/\psi$ production in the Regge limit of QCD: From the Tevatron to the LHC”, Phys. Rev. D, 85:7 (2012), 074013 | DOI

[21] Kniehl B.A., Nefedov M.A., Saleev V.A., “$\psi(2 S)$ and $\Upsilon (3 S)$ hadroproduction in the parton Reggeization approach: Yield, polarization, and the role of fragmentation”, Phys. Rev. D, 94:5 (2016), 054007 | DOI

[22] Chernyshev A.A., Saleev V.A., “Single and pair $J/\psi$ production in the improved color evaporation model using the parton Reggeization approach”, Phys. Rev. D, 106:11 (2022), 114006 | DOI

[23] N. Brambilla et al., “Heavy Quarkonium: Progress, Puzzles, and Opportunities”, The European Physical Journal C, 71 (2011), 1534 | DOI

[24] Vogelsang W., Whalley M.R., “A compilation of data on single and double prompt photon production in hadron-hadron interactions”, Phys. Rev. D, 23:7A (1997), A1–A69 | DOI

[25] G. Aad et al., “Measurement of the production cross section of pairs of isolated photons in pp collisions at 13 TeV with the ATLAS detector”, Journal of High Energy Physics, 2021 (2021), 169 | DOI | MR

[26] S. Acharya et al., “Measurement of the inclusive isolated photon production cross section in $pp$ collisions at $\sqrt{s} = 7$ TeV”, The European Physical Journal C, 79:11 (2019), 896 | DOI

[27] A.M. Sirunyan et al., “Measurement of differential cross sections for inclusive isolated-photon and photon+jets production in proton-proton collisions at $\sqrt{s} = 13$ TeV”, The European Physical Journal C, 79:1 (2019), 20 | DOI | MR

[28] Saleev V.A., “Prompt photon photoproduction at HERA within the framework of the quark Reggeization hypothesis”, Phys. Rev. D, 78:11 (2008), 114031 | DOI

[29] Kniehl B.A., Saleev V.A., Shipilova A.V., Yatsenko E.V., “Single jet and prompt-photon inclusive production with multi-Regge kinematics: From Tevatron to LHC”, Phys. Rev. D, 84:7 (2011), 074017 | DOI

[30] Nefedov M., Saleev V., “Diphoton production at the Tevatron and the LHC in the NLO approximation of the parton Reggeization approach”, Phys. Rev. D, 92:9 (2015), 094033 | DOI

[31] Karpishkov A., Saleev V., “Production of three isolated photons in the parton Reggeization approach at high energies”, Phys. Rev. D, 106:5 (2022), 054036 | DOI

[32] Collins J.C., Ellis R.K., “Heavy-quark production in very high energy hadron collisions”, Nuclear Physics B, 360:1 (1991), 3–30 | DOI

[33] Catani S., Hautmann F., “High-energy factorization and small-x deep inelastic scattering beyond leading order”, Nuclear Physics B, 427:3 (1994), 475–524 | DOI | MR

[34] Gribov L.V., Levin E.M., Ryskin M.G., “Semihard processes in QCD”, Physics Reports, 100:1-2 (1983), 1–150 | DOI

[35] Lipatov L.N., “Gauge invariant effective action for high energy processes in QCD”, Nuclear Physics B, 452:1-2 (1995), 369–397 | DOI

[36] Kimber M.A., Martin A.D., Ryskin M.G., “Unintegrated parton distributions”, Physical Review D, 63:11 (2001), 114027 | DOI

[37] Watt G., Martin A.D., Ryskin M.G., “Unintegrated parton distributions and inclusive jet productionat HERA”, The European Physical Journal C - Particles and Fields, 31 (2003), 73–89 | DOI

[38] Hahn T., “Generating Feynman diagrams and amplitudes with FeynArts 3”, Computer Physics Communications, 140:3 (2001), 418–431 | DOI | Zbl

[39] Saleev V.A., Nefedov M.A., Shipilova A.V., “Prompt J/psi production in the Regge limit of QCD: From the Tevatron to the LHC”, Phys. Rev. D, 85:7 (2012), 074013 | DOI

[40] Nefedov M.A., Saleev V.A., Shipilova A.V., “Charmonium production at the Tevatron and Large Hadron Collider in the Regge limit of QCD”, Physics of Atomic Nuclei, 76:12 (2013), 1546–1553 | DOI

[41] Saleev V.A., Nefedov M.A., Shipilova A.V., “Prompt $J/\psi$ production in the Regge limit of QCD: From Tevatron to LHC”, Phys. Rev. D, 85:7 (2012), 074013 | DOI

[42] van Hameren A., “KaTie: For parton-level event generation with kT-dependent initial states”, Computer Physics Communication, 224 (2018), 371–380 | DOI

[43] Chernyshev A., Saleev V., “Associated production of heavy quarkonia and D mesons in the improved color evaporation model with KaTie”, Phys. Rev. D, 109:9 (2024), 094029 | DOI

[44] Alimov L.E., Saleev V.A., “Assotsiativnoe rozhdenie $J/\psi$ - mezonov i pryamykh fotonov pri energii kollaidera NICA”, Vestnik Samarskogo universiteta. Estestvennonauchnaya seriya, 29:2 (2023), 48–61 | DOI