Parton distribution effects in the direct photon production at hadron collisions

Authors

DOI:

https://doi.org/10.31349/SuplRevMexFis.3.020712

Keywords:

NLO Computation, QCD Phenomenology, High Energy Physics

Abstract

Parton distribution functions are crucial to understand the internal kinematics of hadrons. There are currently a large number of distribution functions on the market, and thanks to today's technology, performing computational analysis of the differential cross-sections has become more accessible. Despite technological advances, accurately accessing to the internal structure of hadrons remains a difficult task from a theoretical point of view. In this work, we analyze the impact on the differential cross-sections when updating the sets of parton distribution and fragmentation functions, for the production of one hadron plus a direct photon at the energy scale of RHIC and LHC experiments.

References

A. Khalek, Rabah and others, A first determination of parton distributions with theoretical uncertainties, Eur. Phys. J. C. 79 (2019) 838, https://doi.org/10.1140/epjc/s10052-019-7364-5.

D. de Florian, R. Sassot, M Stratmann and W. Vogelsang, Global Analysis of Helicity Parton Densities and Their Uncertainties, Phys. Rev. Lett. 101 (2008) 072001, https://doi.org/10.1103/PhysRevLett.101.072001.

D. de Florian, R. Sassot, M Stratmann and W. Vogelsang, Extraction of Spin-Dependent Parton Densities and Their Uncertainties, Phys. Rev. D. 80 (2009) 034030, https://doi.org/10.1103/PhysRevLett.101.072001.

J. Cruz-Martinez, S. Forte and E. R. Nocera, Future tests of parton distributions, Acta Phys. Polon. B. 52 (2021) 243, https://doi:10.5506/APhysPolB.52.243.

D. de Florian and G. F. R. Sborlini, Hadron plus photon production in polarized hadronic collisions at next-to-leading order accuracy, Phys. Rev. D. 83 (2011) 074022, https://doi:10.1103/PhysRevD.83.074022.

D. F. Renter´ıa-Estrada, R. J. Hernandez-Pinto and G. F. R. Sborlini, Analysis of the Internal Structure of Hadrons Using Direct Photon Production, Symmetry. 13 (2021) 942, https://doi:10.3390/sym13060942.

D. F. Renter´ıa-Estrada, R. J. Hernandez-Pinto, G. F. R. Sborlini and P. Zurita, Reconstructing partonic kinematics at colliders with Machine Learning, arXiv [hep-ph], e-Print:2112.05043

X. N. Wang, Z. Huang and I. Sarcevic, Jet quenching in the opposite direction of a tagged photon in high-energy heavy ion

collisions, Phys. Rev. Lett. 77 (1996) 231, https://doi:10.1103/PhysRevLett.77.231.

F. Arleo, P. Aurenche, Z. Belghobsi and J. P. Guillet, Photon tagged correlations in heavy ion collisions, JHEP. 11 (2004) 009, https://doi:10.1088/1126-6708/2004/11/009.

F. Arleo, Hard pion and prompt photon at RHIC, from single to double inclusive production, JHEP. 9 (2006) 015, https://doi:10.1088/1126-6708/2006/09/015.

H. Zhang, J. F. Owens, E. Wang, and X. N. Wang, Tomography of high-energy nuclear collisions with photon-hadron correlations, Phys. Rev. Lett. 103 (2009) 32302, https://doi:10.1103/PhysRevLett.103.032302.

J. C. Collins, D. F. Soper and G. F. Sterman, Factorization of Hard Processes in QCD, Adv. Ser. Direct. High Energy Phys. 5 (1989) 1, https://doi:10.1142/97898145032660001.

S. Frixione, Isolated photons in perturbative QCD, Phys. Lett. B. 429 (1998) 369, https://doi:10.1016/S0370-2693(98)00454-7.

L. Cieri, Diphoton isolation studies, Nucl. Part. Phys. Proc. 273-275 (2016) 2033, https://doi:10.1016/j.nuclphysbps.2015.09.329.

S. Catani, L. Cieri, D. de Florian, G. Ferrera and M. Grazzini, Diphoton production at the LHC: a QCD study up to NNLO, JHEP. 4 (2018) 142, https://doi:10.1016/j.nuclphysbps.2015.09.329.

S. Frixione, Z. Kunszt and A. Singer, Three jet cross-sections to next-to-leading order, Nucl. Phys. B. 467 (1996) 399, https://doi:10.1016/0550-3213(96)00110-1.

D. de Florian, R. Sassot, M. Epele, R. J. Hernandez-Pinto and M. Stratmann, Parton-to-Pion Fragmentation Reloaded, Phys. Rev. D. 91 (2015) 014035, https://doi:10.1103/PhysRevD.91.014035.

A. Buckley et al., LHAPDF6: parton density access in the LHC precision era, Eur. Phys. J. C. 75 (2015) 132, https://doi:10.10.1140/epjc/s10052-015-3318-8.

D. de Florian, R. Sassot and M. Stratmann, Global analysis of fragmentation functions for protons and charged hadrons, Phys. Rev. D. 76 (2007) 074033, https://doi:10.1103/PhysRevD.76.074033.

A. D. Martin, W. J. Stirling, R. S. Thorne and G. Watt, Parton distributions for the LHC, Eur. Phys. J. C. 63 (2009) 189, https://doi:10.1140/epjc/s10052-009-1072-5.

V. Bertone, S. Carrazza, N. Hartland and J. Rojo, Illuminating the photon content of the proton within a global PDF analysis, SciPost Phys. 5 (2018) 008, https://doi:10.1140/epjc/s10052-009-1072-5.

Downloads

Published

2022-03-31

How to Cite

1.
Rentería Estrada DF, Hernández-Pinto R, Sborlini G. Parton distribution effects in the direct photon production at hadron collisions. Supl. Rev. Mex. Fis. [Internet]. 2022 Mar. 31 [cited 2022 Dec. 3];3(2):020712 1-5. Available from: https://rmf.smf.mx/ojs/index.php/rmf-s/article/view/6193