CERN Accelerating science

Article
Report number	arXiv:2203.08129
Title	White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction
Author(s)	Hentschinski, Martin (Americas U., Puebla) ; Royon, Christophe (Kansas U.) ; Peredo, Marco Alcazar (Americas U., Puebla) ; Baldenegro, Cristian (Ecole Polytechnique) ; Bellora, Andrea (INFN, Turin) ; Boussarie, Renaud (Ecole Polytechnique, CPHT) ; Celiberto, Francesco Giovanni (ECT, Trento ; Fond. Bruno Kessler, Trento ; Fond. Bruno Kessler, Povo ; TIFPA-INFN, Trento) ; Cerci, Salim (Adiyaman U.) ; Chachamis, Grigorios (LIP, Lisbon) ; Contreras, J.G. (Prague, Tech. U.) ; Fichet, Sylvain (ICTP-SAIFR, Sao Paulo) ; Fucilla, Michael (Calabria U. ; INFN, Cosenza ; IJCLab, Orsay) ; von Gersdorff, Gero (Rio de Janeiro, Pont. U. Catol.) ; González, Pablo (Munster U.) ; van Hameren, Andreas (Cracow, INP) ; Jalilian-Marian, Jamal (Baruch Coll. ; CUNY, Graduate School - U. Ctr.) ; Kampshoff, Mats (Munster U.) ; Khoze, Valery (Durham U., IPPP) ; Klasen, Michael (Munster U.) ; Klein, Spencer Robert (LBL, Berkeley) ; Krintiras, Georgios (Kansas U.) ; Kotko, Piotr (AGH-UST, Cracow) ; Kutak, Krzysztof (Cracow, INP) ; Lansberg, Jean-Philippe (IJCLab, Orsay) ; Li, Emilie (IJCLab, Orsay) ; Loizides, Constanin (IJCLab, Orsay ; Oak Ridge) ; Mohammed, Mohammed M.A. (Calabria U.) ; Nefedov, Maxim (INFN, Cosenza ; NCBJ, Warsaw) ; Ozcelik, Melih A. (KIT, Karlsruhe, TP) ; Papa, Alessandro (Calabria U. ; INFN, Cosenza) ; Pitt, Michael (CERN) ; Sabio Vera, Agustin (Madrid, IFT ; Madrid, Autonoma U.) ; Salomon, Jens (Madrid, IFT) ; Sapeta, Sebastian (Cracow, INP) ; da Silveira, Gustavo Gil (Rio Grande do Sul U.) ; Gonçalves, Victor Paulo (Pelotas U.) ; Strikman, Mark (Penn State U.) ; Cerci, Deniz Sunar (Adiyaman U.) ; Szymanowski, Lech (NCBJ, Warsaw) ; Takaki, Daniel Tapia (Kansas U.) ; Taševský, Marek (Prague, Inst. Phys.) ; Wallon, Samuel (IJCLab, Orsay)
Publication	2023
Imprint	2022-03-15
Number of pages	98
In:	Acta Phys. Pol. B 54 (2023) 3-A2
In:	2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.3-A2
DOI	10.5506/APhysPolB.54.3-A2
Subject category	hep-ph ; Particle Physics - Phenomenology
Abstract	The goal of this whitepaper is to give a comprehensive overview of the rich field of forward physics. We discuss the occurrences of BFKL resummation effects in special final states, such as Mueller-Navelet jets, jet gap jets, and heavy quarkonium production. It further addresses TMD factorization at low x and the manifestation of a semi-hard saturation scale in (generalized) TMD PDFs. More theoretical aspects of low x physics, probes of the quark gluon plasma, as well as the possibility to use photon-hadron collisions at the LHC to constrain hadronic structure at low x, and the resulting complementarity between LHC and the EIC are also presented. We also briefly discuss diffraction at colliders as well as the possibility to explore further the electroweak theory in central exclusive events using the LHC as a photon-photon collider.
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0) publication: (License: CC-BY-4.0)

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