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Low-x 2019

26–31 Aug 2019
Nicosia, Cyprus
Europe/Rome timezone

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Contribution List

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  1. 21. Welcome
    Christophe Royon (The University of Kansas (US)), Fotios Ptochos (University of Cyprus (CY))
    26/08/2019, 08:45
  2. 22. Latest results on double parton scattering and MC tuning from CMS
    Radek Zlebcik (Deutsches Elektronen-Synchrotron (DE))
    26/08/2019, 09:00
  3. 23. Measurements of multi-parton interactions at ATLAS
    Tibor Zenis (Comenius University (SK))
    26/08/2019, 09:30
  4. 24. J/\psi production in hadron scattering: two parton showers contribution
    Eugene Levin (Tel Aviv University)
    26/08/2019, 10:00
  5. 34. Regge cuts in the Reggeized gluon channel
    Victor Fadin (Budker Institute of Nuclear Physics)
    26/08/2019, 10:50
  6. 33. BFKL resummation in inclusive processes
    Alessandro Papa (Universita` della Calabria & INFN-Cosenza)
    26/08/2019, 11:15
  7. 18. Low $x$ physics and saturation in terms of TMD distributions
    Renaud Boussarie (Brookhaven National Lab)
    26/08/2019, 11:40

    One of the main difficulties to understand the continuity between low x physics and more standard QCD factorization frameworks which apply for more moderate energies is the very nature of the parton distributions involved. I will argue that low x physics can be understood as the eikonal limit of an infinite twist TMD distribution framework, and discuss the consequences of this observation for...

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  8. 26. Discussion session: DPS, saturation
    Brian Foster (University of Oxford (GB)), Dimitri Colferai, Eugene Levin (Tel Aviv University)
    26/08/2019, 12:05
  9. 27. Forward photon measurements with ALICE at the LHC as a probe for low-x gluons
    Thomas Peitzmann (Nikhef National institute for subatomic physics (NL))
    26/08/2019, 14:00
  10. 7. Measurements of event properties and correlations in multi jet events in CMS
    Cristian Baldenegro Barrera (The University of Kansas (US))
    26/08/2019, 14:30

    Measurements of event properties and correlations in multi jet events in CMS are reviewed.

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  11. 30. Mueller Tang cross sectiona at NLL
    Federico Deganutti
    26/08/2019, 15:00
  12. 43. Topological charge fluctuations in the Glasma
    Pablo Guerrero Rodríguez (UGR)
    26/08/2019, 15:25
  13. 28. The NL BFKL vertex for Mueller-Tang jets in the soft-gluon approximation
    Dimitri Colferai
    26/08/2019, 16:15
  14. 13. Forward jet cross sections: from trijet to NLO dijet
    Yair Mulian
    26/08/2019, 16:40

    Using the formalism of the light-cone wave function in pQCD together with the hybrid factorization, we compute the cross-section for two and three particle production at forward rapidities in proton-nucleus collisions. We focus on the quark channel, in which the three produced partons -- a quark accompanied by a gluon pair, or two quarks plus one antiquark -- are all generated via two...

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  15. 25. Impact parameter dependence of colinearly improved Balitsky-Kovchegov evolution
    Marek Matas (CERN)
    26/08/2019, 17:05
  16. 17. BFKL Resummation in the inclusive Higgs Boson Plus Jet production at the LHC
    Mohammed Maher Abdelrahim Mohammed (Università della Calabria and INFN - Gruppo collegato di Cosenza)
    26/08/2019, 17:30

    The inclusive production of a Higgs boson and of a jet at the LHC, featuring a wide separation in rapidity, is an interesting probe process for the investigation of the BFKL mechanism of resummation of energy logarithms in the QCD perturbative series. Here, we present for the first time a partial next-to-leading order BFKL analysis for cross sections and azimuthal correlations.

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  17. 31. Discussion session: jet gap jets, BFKL saturation
    Dimitri Colferai, Eugene Levin (Tel Aviv University)
    26/08/2019, 17:55
  18. 32. Recent PDF results from top physics and heavy flavour results at CMS
    Katarzyna Wichmann (Deutsches Elektronen-Synchrotron (DE))
    27/08/2019, 09:00
  19. 50. Multiple scattering effects in heavy quarkonia hadroproduction
    Leszek Motyka
    27/08/2019, 09:30
  20. 19. Correlations at unequal rapidity in the dilute limit of JIMWLK
    Andrecia Ramnath (University of Jyvaskyla)
    27/08/2019, 09:55

    Unequal rapidity correlations can be studied within the stochastic Langevin picture of JIMWLK evolution in the Colour Glass Condensate effective field theory. By evolving the classical field in the direct and complex conjugate amplitudes, the Langevin formalism can be used to study two-particle production at large rapidity separations. The evolution between the rapidities of the two produced...

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  21. 35. Introduction to XFitter
    Katarzyna Wichmann (Deutsches Elektronen-Synchrotron (DE))
    27/08/2019, 10:20
  22. 64. xFitter project - a framework for QCD studies
    Agnieszka Luszczak
    27/08/2019, 11:10
  23. 36. Determination of proton parton distribution functions using ATLAS data
    Lorenzo Bellagamba (Universita e INFN, Bologna (IT))
    27/08/2019, 11:35
  24. 37. Discussion session: PDFs, DGLAP...
    Brian Foster (University of Oxford (GB)), Katarzyna Wichmann (Deutsches Elektronen-Synchrotron (DE)), Leszek Motyka
    27/08/2019, 12:05
  25. 38. Prospects for measurements of H/Z production cross section ratios using CMS Run II data
    Louis Moureaux (Universite Libre de Bruxelles (BE))
    27/08/2019, 14:00
  26. 39. Initial-state fluctuations and anisotropies in heavy-ion collisions
    Cyrille Marquet (Theory Division - CERN), Cyrille Marquet (CPHT - Ecole Polytechnique), Cyrille Michel Marquet (Universidade de Santiago de Compostela (ES))
    27/08/2019, 14:25
  27. 16. Sudakov resummation in the CGC framework
    Dr Shu-yi Wei (CPHT, Ecole Polytechnique)
    27/08/2019, 14:50

    In this talk we would like to present our recent works on how to incorporate Sudakov resummation into the dilute-dense factorization framework.

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  28. 41. Thermal radiation and inclusive production in the CGC/saturation approach at high energies for hadron-hadron and ion-ion collision
    Eugene Levin (Tel Aviv University)
    27/08/2019, 15:15
  29. 14. Vertices of three reggeized gluons and the unitarity corrections to the propagator of reggeized gluons
    Semyon Pozdnyakov (Saint Petersburg State University, Ariel University)
    27/08/2019, 16:10

    High energy QCD hadronic interactions in the Regge kinematics, when the transferred transverse momenta are much smaller than an energies of colliding particles, can be described by the interaction of gluons with reggeized ones ("reggeized gluons", reggeons). The description of these processes was firstly introduced in series of L.N. Lipatov's papers. Calculations of the amplitudes of different...

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  30. 42. UPC results from ALICE
    Roman Lavicka (Czech Technical University (CZ))
    27/08/2019, 16:35
  31. 44. Discussion session: Heavy ions
    Cyrille Marquet (CPHT - Ecole Polytechnique)
    27/08/2019, 17:05
  32. 45. V+jets production and Jet cross sections at CMS and tests of QCD
    Bugra Bilin (Universite Libre de Bruxelles (BE))
    29/08/2019, 09:00
  33. 46. NNLO QCD fits to jets and extraction of alpha_s
    Katarzyna Wichmann (Deutsches Elektronen-Synchrotron (DE))
    29/08/2019, 09:30
  34. 47. Measurements of single diffraction using forward proton tagging at ATLAS
    Rafał Staszewski (IFJ PAN Cracow (PL))
    29/08/2019, 10:00
  35. 48. Diffractive PDF determination from HERA inclusive and jet data at NNLO QCD
    Radek Zlebcik (Deutsches Elektronen-Synchrotron (DE))
    29/08/2019, 11:00
  36. 6. Recent results on soft and forward physics from CMS
    Cristian Baldenegro Barrera (The University of Kansas (US))
    29/08/2019, 11:30

    Recent results on soft and forward physics from CMS are reviewed.

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  37. 20. LHCf forward physics results
    Oscar Adriani (Dipartimento di Fisica)
    29/08/2019, 12:00

    The main aim of the LHC forward (LHCf) experiment is to provide precise measurements of the particles production spectra in the forward region of the hadronic collisions. These high energy calibration data are very important for the tuning of hadronic interaction models used by ground-based cosmic rays experiments. LHC is the best place where we can perform these measurements, because...

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  38. 49. Discussion session: inclusive diffraction
    Michael Albrow (Fermi National Accelerator Lab. (US)), Rafał Staszewski (IFJ PAN Cracow (PL))
    29/08/2019, 12:30
  39. 51. Recent results from PPS and PPS status and prospects
    Andrea Bellora (Universita e INFN Torino (IT))
    30/08/2019, 09:00
  40. 5. Recent results CMS and TOTEM on exclusive production, light by light scattering and diffraction
    Michael Albrow (Fermi National Accelerator Lab. (US))
    30/08/2019, 09:30

    Recent results CMS and TOTEM on exclusive production, light by light scattering and diffraction are reviewed.

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  41. 52. Anomalous coupling studies and the pomeron structure at the LHC
    Christophe Royon (The University of Kansas (US))
    30/08/2019, 10:00
  42. 53. Axion-like particles in light-by-light scattering in pp, pPb, and Ar-Ar collisions
    Cristian Baldenegro Barrera (The University of Kansas (US))
    30/08/2019, 10:50
  43. 54. Searches for Dark Matter at the LHC in forward proton mode
    Valery Khoze (University of Durham (GB))
    30/08/2019, 11:15
  44. 2. Studies of Central Exclusive Production and Soft QCD phenomena at LHCb
    Lavinia-Elena Giubega (IFIN-HH (RO))
    30/08/2019, 11:40

    The LHCb detector at the LHC offers unique coverage of forward rapidities. This enables complementary measurements of soft QCD phenomena to those at the other LHC detectors. Measurements of the inelastic cross-section and of particle production will be presented. Measurements of Central Exclusive Production (CEP) at LHCb will also be presented. These measurements probe QCD, allowing...

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  45. 55. Discussion session: exclusive diffraction
    Christophe Royon (The University of Kansas (US)), Valery Khoze (University of Durham (GB))
    30/08/2019, 12:10
  46. 56. Review of TOTEM results
    Jan Kaspar (Acad. of Sciences of the Czech Rep. (CZ))
    30/08/2019, 14:00
  47. 57. Scaling properties of elastic pp and ppbar scattering at LHC energies
    Tamas Csorgo (Hungarian Academy of Sciences (HU))
    30/08/2019, 14:30
  48. 58. Photon-induced processes in production of heavy particle pairs at the LHC
    Marta Luszczak (University of Rzeszow)
    30/08/2019, 14:55
  49. 59. Results on Total and Elastic Cross Sections in p+p collisions at sqrt(s) = 200 GeV with the STAR Detector at RHIC
    Dr Wlodek Guryn (Brookhaven National Laboratory)
    30/08/2019, 15:50
  50. 60. Roman pots and the impact parameter for ion-ion
    Janusz Chwastowski (Polish Academy of Sciences (PL))
    30/08/2019, 16:20
  51. 61. Recent results on central exclusive production within the tensor-pomeron and vector-odderon approach
    Piotr Lebiedowicz (Institute of Nuclear Physics PAN)
    30/08/2019, 16:45
  52. 62. Discussion session: Soft and hard diffraction
    Tamas Csorgo (Hungarian Academy of Sciences (HU)), Valentina Avati (AGH University of Science and Technology (PL))
    30/08/2019, 17:10
  53. 63. Closing items
    Christophe Royon (The University of Kansas (US)), Fotios Ptochos (University of Cyprus (CY))
    30/08/2019, 18:00
  54. 15. Initial-state fluctuations and anisotropies in heavy-ion collisions
    Cyrille Marquet (CPHT - Ecole Polytechnique)

    blah blah

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  55. 8. Latest results on double parton scattering and MC tuning from CMS
    CMS Collaboration

    Latest results on double parton scattering and MC tuning from CMS are reviewed.

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  56. 10. Prospects for measurements of H/Z production cross section ratios using CMS Run II data.
    Bugra Bilin (Universite Libre de Bruxelles (BE))

    We present prospects for the direct measurement of ratios of differential cross sections for the production of Z and Higgs bosons in proton-proton collisions, using data taken by CMS during the LHC Run II. The aim of the measurement is to study soft and hard gluon emission in the initial state for Higgs and Z production mechanisms. Hence, we focus on variables known to be sensitive to the...

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  57. 4. Recent PDF results from top physics and heavy flavour results at CMS
    CMS Collaboration

    Recent PDF results from top physics and heavy flavour results at CMS are reviewed.

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  58. 9. Recent results from PPS and PPS status and prospects
    CMS Collaboration

    This talk describes the present PPS status concerning the detector itself and data taking, as well as future prospects including high lumi.

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  59. 40. Recent results on photon-photon, photo-nuclear, and heavy-ion collisions from ATLAS at the LHC
  60. 12. Studies of Central Exclusive Production and Soft QCD phenomena at LHCb
    Mrs Lavinia-Elena Giubega (IFIN-HH (RO))

    The LHCb detector at the LHC offers unique coverage of forward rapidities. This enables complementary measurements of soft QCD phenomena to those at the other LHC detectors. Measurements of the inelastic cross-section and of particle production will be presented. Measurements of Central Exclusive Production (CEP) at LHCb will also be presented. These measurements probe QCD, allowing...

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  61. 1. Studies of Jet Fragmentation and Hadronisation at LHCb
    LHCb collaboration

    Studies of Jet Fragmentation and Hadronisation at LHCb

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  62. 29. Sudakov resummation in the CGC framework
    Shu-yi Wei (CPHT, Ecole Polytechnique)
  63. 11. The TOTEM data at roots = 13 TeV and the enigma of the odderon
    Prof. Errol Gotsman (Tel Aviv University)

    We demonstrate that a model based on CGC/saturation approach, successfully describes soft interaction collisions for a wide energy range of W = 30 GeV to 13 TeV, including the new TOTEM data at 13 TeV. Incorporating the secondary Reggeons in our approach enables us to describe the complete set of soft data, including the energy behaviour of $ \rho $, the ratio of the real to the imaginary...

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  64. 3. V+jets production and Jet cross sections at CMS and tests of QCD
    CMS Collaboration

    V+jets production and Jet cross sections at CMS and tests of QCD are reviewed.

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