Diffraction and Low-x 2024
Hotel Tonnara Trabia, Palermo, Sicily
"Diffraction and Low-x 2024" is a joint effort between the Diffraction and Low-x meeting workshop series. The purpose of this workshop is to stimulate discussions between experimentalists and theorists in diffractive hadronic physics, QCD dynamics at low-x, parton saturation and exciting problems in QCD at HERA, Tevatron, LHC, RHIC and the future EIC.
The conference venue is the Hotel Tonnara Trabia, Palermo, Sicily, from September 8, afternoon to September 14, lunch time. It is planned to be in person only.
Diffraction is a biennial workshop dedicated to theoretical and experimental progress in diffractive processes at high energies. The previous events took place in Cetraro (2000), Alushta (2002), Cala Gonone (2004), Milos (2006), La Londe-les-Maures (2008), Otranto (2010), Lanzarote (2012), Primošten (2014), Acireale (2016).
Low-x is an annual workshop whose spirit is to favour fruitful and informal discussions between experimentalists and theorists in low-x, diffractive hadronic physics and exciting problems in QCD at HERA, Tevatron and LHC. Low-x has been held since DESY (1993), then Saclay (May 1994), Cambridge (July 1995), Durham (June 1996), Madrid (June 1997), Berlin (June 1998), Tel Aviv (June 1999), Oxford (July 2000), Cracow (June 2001), Antwerpen (September 2002), Nafplio (June 2003), Prague (September 2004), Sinaia (June 2005), Lisbon (June 2006), Helsinki (September 2007), Kolimpari (Crete, July 2008), Ischia (September 2009), Kavala (June 2010), Santiago de Compostela (June 2011), Paphos (Cyprus, June 2012), Eilat (June 2013), Kyoto (June 2014), Sandomierz (September 2015), Gyöngyös (June 2016), Bisceglie (June 2017), Nicosia (August 2019), Elba (September 2021), Leros (September 2023).
The previous joint workshops "Diffraction and Low-x" were held in Reggio Calabria (2018), and then Corigliano Calabro (2022).
The registration deadline will be June 30 (new) and the abstract submission deadline is June 15 (new).
The Workshop is organized and sponsored by
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We acknoledge the participation in the event of the
Istituto Superiore "Majorana" di Palermo | ![]() |
Liceo Scientifico Statale |
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WelcomeSpeakers: Prof. ALESSANDRO PAPA (Università della Calabria & INFN-Cosenza), Christophe Royon (The University of Kansas (US))
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Low x, PDFs and saturation I
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2
Recent results relevant for PDFs at low and high x, saturation in pp and HI collisions from CMS (187)Speaker: Dr Georgios Krintiras (The University of Kansas (US))
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3
Recent ALICE results relevant for PDFs at low and high x, saturation (191)Speaker: Anisa Khatun (The University of Kansas (US))
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4
Small-x phenomenology in collinear factorisation (164)Speaker: Federico Silvetti (INFN - National Institute for Nuclear Physics)
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5
Recent ATLAS results relevant for PDFs at low and high x, saturation in both pp and HI collisionsSpeaker: Santu Mondal (Czech Technical University in Prague (CZ))
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2
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10:25
Coffee break
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Low x, PDFs and saturation II
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6
Recent results from STAR for parton distribution functions at low and high x in proton-proton collisions (131)Speaker: Zilong Chang (Indiana University)
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7
Deep-inelastic scattering with collider neutrinos at the LHC and beyond (117)Speaker: Dr Toni Makela (NCBJ)
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8
Modifed homotopy approach for diffractive production in the saturation region (188)Speaker: Carlos Contreras (Departamento de Fisica-Univ. Tecnica Federico Santa Maria (UTFS)
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9
Semi-inclusive DIS at small x: CGC, TMD factorization, and Sudakov factorSpeaker: Cyrille Marquet (CPHT - Ecole Polytechnique)
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The Axial Current and Its Divergence (124)Speaker: Ignacio Castelli
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Discussion
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6
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13:00
Lunch break
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Low x, PDFs and saturation IV
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12
Suppression of diffraction in deep-inelastic scattering on nuclei and dynamical mechanism of leading twist nuclear shadowing (195)Speaker: Vadim Guzey (University of Jyvaskyla)
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13
RG improved JIMWLK Hamiltonian: running coupling and DGLAP evolution (138)Speaker: Michael Lublinsky (Ben-Gurion University of the Negev (IL))
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14
Twist corrections to exclusive vector meson production in a saturation frameworkSpeaker: Michael Fucilla
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15
Inclusive J/ψ production in forward proton-proton and proton-lead collisions at high energy (128)Speaker: Patricia Gimeno Estivill (University of Jyväskylä)
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16
NLO impact-factor for the forward eta_c meson production (190)Speaker: Dr Maxim Nefedov (IJClab, Orsay)
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12
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15:50
Coffee break
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Diffraction in pp and AA II
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17
TOTEM: Pomeron and Odderon exchange at LHC energies (162)Speaker: Kenneth Osterberg (University of Helsinki)
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ATLAS results on diffraction (194)Speaker: Rafał Staszewski (IFJ PAN Cracow (PL))
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19
Scaling of the elastic proton-proton cross-section (141)Speaker: Michal Praszalowicz (Jagiellonian University, Krakow)
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Odderon contribution in light of the LHC low-t data (101)Speaker: Emerson Luna
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Structures in single proton diffractive dissociation at the LHC (139)Speaker: Laszlo Jenkovszky (National Academy of Sciences of Ukraine)
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17
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17:55
Beach break
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20:10
Dinner
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1
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Diffraction in pp and AA II
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22
Absorptive Corrections to the Electromagnetic Form Factor in High-Energy Elastic Proton-Proton Scattering (125)Speaker: Andrei Poblaguev (Brookhaven National Laboratory (US))
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23
Diffractive results from CMS (185)Speaker: Mr István Szanyi (Eötvös Loránd University)
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24
Double gap events in ALICE Run 3 (161)Speaker: Rainer Schicker (Heidelberg University (DE))
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25
Diffraction results from ALICE (198)Speaker: Ernesto Calvo Villar (Pontificia Universidad Catolica del Peru (PE))
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Recent Results from PPS and prospects (186)Speaker: Ada Solano (Universita' di Torino e INFN (IT))
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22
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10:40
Coffee break
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Diffraction in pp and AA III
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27
Unexpected breakdown of collinear factorisation at leading twist in exclusive pi0-gamma photoproduction due to Glauber pinch (180)Speaker: Samuel Wallon
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Forward detectors in ATLAS and physics results (195)Speaker: Maciej Piotr Lewicki (Polish Academy of Sciences (PL))
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29
Central Exclusive Production with the STAR detector at RHIC (158)Speaker: Leszek Adamczyk (AGH University of Krakow (PL))
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Challenging exclusive top quark pair production at low and high luminosity LHC (136)Speaker: Daniel Ernani Martins Neto (Polish Academy of Sciences (PL))
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31
Studies of low x physics and ultraperipheral collisions at LHCb (155)Speaker: Murilo Santana Rangel (Federal University of Rio de Janeiro (BR))
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32
Discussion
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27
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13:15
Lunch break
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Diffraction in pp and AA IV
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33
Tagging nucleons in proton-Oxygen collisions at the LHC (168)Speaker: Michael Pitt (The University of Kansas (US))
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34
Future LHC Measurements for Cosmic Ray Induced Air Shower Modeling (99)Speaker: Clara Elisabeth Leitgeb (Humboldt University of Berlin (DE))
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35
Computation of integral and space-time structure of luminosity at a collider (93)Speaker: Joachim Baechler (CERN)
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36
Discussion
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33
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15:45
Coffee break
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Low x, PDFs and saturation IV
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37
Dipole approach to exclusive J/\psi photoproduction and the putative gluon shadowing (157)Speaker: Wolfgang Schaefer
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On the Quarkonium Collinear Fragmentation in a VFNS (96)Speaker: Dr Francesco Giovanni Celiberto (UAH Madrid)
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Transverse Single Spin Asymmetry of Electromagnetic Jets for Inclusive and Diffractive Processes at Forward Rapidity in pp Collisions at STAR (98)Speaker: Xilin Liang (University of California, Riverside)
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Discussion
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37
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17:40
Break
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Poster and flash talk session
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42
Single diffraction and elastic scattering in proton-proton collisions with the STAR detector at RHIC (128)Speaker: Mariusz Przybycien (AGH University of Krakow (PL))
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Lévy α-stable generalization of the ReBB model of elastic proton-proton and proton-antiproton scattering (123)Speaker: Istvan Szanyi (Eötvös University, MATE KRC, KU)
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44
Study of the J/psi photoproduction with tagged forward proton in p+p collisions at STAR (113)Speaker: Michaela Sverakova
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45
ATLAS ZDC for Run 3 and Run 4 (110)Speaker: Brian Andrew Cole (Columbia University (US))
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Online and Offline Event selections for UPC heavy-flavor and jet events with CMS (175)Speaker: Balazs Kovacs (Eotvos Lorand University (HU))
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Determination of Diffractive PDFs from HERA Data using Neural Networks and Fracture FunctionsSpeaker: Hadi Hashamipour
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The next-to-leading order Higgs impact factor at finite top-mass at the NLO: the real corrections (154)Speaker: Gabriele Gatto
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Measurements of the Z0 cross section and transverse single spin asymmetry in 510 GeV pp collisions (100)Speaker: Xiaoxuan Chu (Central China Normal University)
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Collective properties of the nuclear matter at RHIC (172)Speaker: Sonia Kabana (Instituto De Alta Investigación, Universidad de Tarapacá (CL))
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18:55
Reception and poster discussion
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42
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20:30
Dinner
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UPC and gamma gamma physics I
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53
The SuperChic Monte Carlo Generator: New Developments (151)Speaker: Dr Lucian Alexander Harland-Lang (University College London)
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54
Review of Monte Carlo efforts for UPC collisions (133)Speaker: Huasheng Shao (Peking University, Beijing, China)
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55
Overview of the latest ALICE UPC and photonuclear results (176)Speaker: Simone Ragoni (Creighton University (US))
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56
Overview of the latest ATLAS UPC+photonuclear results (177)Speaker: Brian Andrew Cole (Columbia University (US))
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53
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10:15
Coffee break
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UPC and gamma gamma physics II
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57
Overview of the latest CMS UPC and photonuclear results (197)Speaker: Luis Alcerro Alcerro (The University of Kansas (US))
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First measurement of the D0 production in photonuclear ultra-peripheral heavy -ion collisions with CMS (171)Speaker: Gian Michele Innocenti (Massachusetts Inst. of Technology (US))
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59
Overview of the latest ATLAS and ATLAS-AFP photoproduction results (178)Speaker: Andre Sopczak (Czech Technical University in Prague (CZ))
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60
CMS-PPS2 at HL-LHC (192)Speaker: Dmitry Druzhkin (Tomsk State University (RU))
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61
discussion
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12:30
Lunch
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13:30
Workshop tour
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21:30
Dinner
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Low x, PDFs and saturation IV
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62
Connections between heavy ion collisions and DIS (106)Speaker: Dr Heikki Mäntysaari (University of Jyväskylä)
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63
NLO calculations for inclusive back-to-back dijet in DIS in the saturation regime (130)Speaker: Dr Paul Caucal (Brookhaven National Laboratory)
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64
Saturation within the reach of the LHC: Incoherent J/ψ production at large |t| (92)Speaker: Marek Matas (Czech Technical University)
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65
Discussion
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62
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10:30
Coffee break
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UPC and gamma gamma physics III
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66
Looking for BFKL resummation and saturation at the LHC (103)Speaker: Christophe Royon (The University of Kansas (US))
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67
Collectivity in Ultraperipheral Heavy Ion Collisions and e+A Collisions (145)Speaker: Bjoern Schenke (Brookhaven National Lab)
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68
Collectivity probes in small systems and photoproduction studies at the LHC (149)Speaker: Javier Alberto Murillo Quijada (Universidad de Sonora (MX))
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69
Latest UPC Results from STAR (179)Speaker: Wangmei Zha (University of Science and Technology of China (CN))
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70
Electroweak and BSM prospects with ePIC (174)Speaker: Michael Nycz (Kent State University)
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71
Discussion
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66
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13:05
Lunch
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Spin physics I
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72
3D structure of the nucleon and polarization effects in QCD: an introduction (144)Speaker: Umberto D'Alesio
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73
The 3D structure of the nucleon in momentum space: TMD phenomenology (132)Speaker: Marco Radici
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Experimental Spin Program at Jefferson Lab (152)Speaker: Jian-Ping Chen
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Overview of the spin programme of COMPASS (167)Speaker: Barbara Badelek (University of Warsaw (PL))
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72
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16:00
Coffee break
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Spin physics II
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77
Exclusive pi0 muoproduction at COMPASS (112)Speaker: Karolina Lavickova (Czech Technical University in Prague (CZ))
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78
Three-dimensional hadron structure from lattice QCD (118)Speaker: Krzysztof Cichy
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79
Nonperturbative Collins-Soper Kernel from Lattice QCD (121)Speaker: Swagato Mukherjee
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80
The LHCspin project (91)Speaker: Marco Santimaria (INFN e Laboratori Nazionali di Frascati (IT))
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81
Spin physics at the EIC (116)Speaker: Prof. Pawel Nadel-Turonski (University of South Carolina)
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82
Discussion
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General public talk: A journey to understand the protonSpeaker: Christophe Royon (The University of Kansas (US))
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20:00
Dinner
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Diffraction in ep and eA
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84
Multistrange Hyperon Production on Nuclear Targets (127)Speaker: Carlos Merino (Departamento de Física de Partículas, Facultade de Física Instituto Galego de Física de Altas Enerxías (IGFAE) Universidade de Santiago de Compostela, Galiza, Spain)
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85
Recent results from HERA experiments H1 and ZEUS (146)Speaker: Mariusz Przybycien (AGH University of Krakow (PL))
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86
Diffractive dijets at HERA and EIC using GTMDs (147)Speaker: Antoni Szczurek
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87
EPIC experiment at the Electron-Ion Collider (EIC): status and prospects for exclusive/diffractive physics (163)Speaker: Alexander Jentsch
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84
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10:30
Coffee break
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Diffraction in ep and eA
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88
Diffractive Physics Program at Electron-Ion Collider (EIC) 2nd Detector (104)Speaker: Jihee Kim
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89
Model-independent Odderon results and their domain of validity, including ATLAS and TOTEM dataSpeaker: Tamas Csorgo (MATE Institute of Technology Karoly Robert Campus (HU))
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90
Tagged Deep Inelastic Scattering: exploring meson structure functions and beyond at JLab (129)Speaker: Dipangkar Dutta (Mississippi State University)
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91
Signature of the Odderon in DIS: exclusive productions of chi_c charmonia (166)Speaker: Sanjin Benić
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92
Discussion
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88
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13:00
Lunch
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Hadronic final state I
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93
Progress in Resummed Calculations at the LHC (135)Speaker: Georgios Billis
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94
Top quark production in hadron colliders at NNLL accuracy (143)Speaker: Leszek Motyka
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95
Multiple soft emissions in QCD hard scattering (160)Speaker: Dimitri Colferai (University of Florence (Italy))
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96
Bose-Einstein correlations in small collision systems at LHCb (102)Speaker: Marcin Kucharczyk (Polish Academy of Sciences (PL))
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93
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15:40
Coffee break
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Hadronic final state II
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97
Vector boson production in association with jets ATLAS+CMS (including HF jets (189)Speaker: Giovanni Padovano (Sapienza Universita e INFN, Roma I (IT))
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98
Fragmentation of heavy quarks
Heavy flavored mesons produced with high $p_T$ demonstrate specific features of the production mechanism, such as: (i) short time of gluon radiation by a highly virtual heavy quark; (ii) short formation time of the heavy flavored meson wave function; (iii) enhancement of the fragmentation function $D_{b/B}(z)$ at large fractional momenta $z\to 1$; (iv) short mean free path in the medium (no color transparency). In particular these features explain the observed very different $p_T$ dependences of the nuclear ratio $R_{AA}$ for $J/\psi$ produced directly and indirectly (from B-decays). Data for D-meson production are explained as well.
Speaker: Boris Kopeliovich -
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Particle production in high multiplicity proton-proton collisions: a study of KS0, isolated photons, and D0 mesons (111)Speaker: Dr Andre Veiga Giannini
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100
Semihard Interactions at TeV energies (119)Speaker: Thomas Ventura Iser (UFRGS - Universidade Federal do Rio Grande do Sul)
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101
Discussion
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97
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18:00
Beach break
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19:00
Bus to Palermo / Workshop dinner Palazzo Branciforte - Palermo
Palazzo Branciforte - Palermo
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Hadronic final state III
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102
Jet and jet substructure results from CMS and ATLAS (184)Speaker: Cristian Baldenegro Barrera (Massachusetts Inst. of Technology (US))
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103
Jet and jet substructure: ALICE results (170)Speaker: Haidar Masud Alfanda (Central China Normal University CCNU (CN))
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104
Threshold resummation for Z boson pair production (140)Speaker: Pulak Banerjee (INFN Cosenza)
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102
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10:20
Coffee break
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Hadronic final state IV
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105
Photoproduction of Ordinary and Exotic charmonia (115)Speaker: Alessandro Pilloni (Messina U. & INFN Catania)
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106
Heavy flavor measurements at RHIC (114)Speaker: Sonia Kabana (Instituto De Alta Investigación, Universidad de Tarapacá (CL))
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107
Discussion
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105
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109
Workshop conclusion
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12:40
Lunch
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