Low-x Meeting 2015

1 Sept 2015, 08:30 → 5 Sept 2015, 18:55 Europe/Zurich

"Sarmata" Hotel, Sandomierz, Poland

The 23rd Low x Meeting will take place in Sandomierz, Poland, September 1-5, 2015.

Arrivals: August 31, 2015
Departure: September 6, 2015

This meeting follows the earlier ones held at DESY, 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), Antwerp (September 2002), Nafplio (June 2003), Prague (September 2004), Sinaia (June 2005), Lisbon (June 2006), Helsinki (September 2007) Crete (July 2008), Ischia (September 2009), Kavala (June 2010) and Santiago de Compostela (June 2011), Cyprus (June 2012), Israel (June 2013) and Japan (June 2014). The spirit of this series of meetings is to favour fruitful and informal discussions between experimentalists and theorists. A considerable part of time is devoted to discussions on new results, hot topics and exciting open problems in QCD at colliders.

We invite submissions of talks related to the following subjects:

• DIS at small x and structure functions of the proton, photon and pomeron,
• LHC results on QCD and diffraction, 
• Problem of saturation,
• Diffractive events and the problem of pomeron,
• Exclusive production,
• Diffraction in lepton and hadron induced reactions,
• Hadronic final states,
• Vector meson production,
• Prospects in photon-photon physics,
• Heavy Ion Physics (QGP, saturation...),
• Astroparticle physics,
• Spin physics at low x,
• Other hot topics (open to suggestions).

Poster lowx2015_poster_hires.png lowx2015_poster_lowres.png

Tuesday, 1 September

08:30 → 08:40 Welcome

Speakers: Christophe Royon (University of Kansas (US)), Michal Praszalowicz (Jagiellonian University, Krakow)

08:40 → 09:10 Combination of Measurements of Inclusive Deep-Inelastic ep Scattering Cross Sections and QCD Analysis of HERA Data

Speaker: Ewelina Maria Lobodzinska (Deutsches Elektronen-Synchrotron Hamburg and Zeuthen (DE))

sandomierz.pdf

09:10 → 09:30 Rapidity evolution of gluon TMD from low to moderate x

Speaker: Ian Balitsky (ODU/JLab)

balitsky_gTMD_20min.pdf

09:30 → 09:50 Efects of high parton densities in high energy pp and pA collisions

Speaker: Gosta Gustafson (Lund University)

Lowx2015GG.pdf

09:50 → 10:10 Reggeon field theory as an effective theory in the extreme small-x region

Speaker: Prof. Jochen Bartels

04_Bartels.pdf

10:10 → 10:40 Coffee

10:40 → 11:00 Twist expansion of the Drell-Yan structure functions

Speakers: Tomasz Stebel (CERN), Tomasz Stebel (Jagiellonian University)

Sandomierz Stebel.pdf

11:00 → 11:20 BFKL resummation effects in di-hadron production at LHC

Speakers: Francesco Giovanni Celiberto (Università della Calabria and INFN Cosenza (Italy)), Francesco Giovanni Celiberto (Università della Calabria and INFN Cosenza (Italy))

talk_Lowx_2015_Celiberto.pdf

11:20 → 11:40 AdS/CFT, confinement deformation and DIS at small x

Speaker: Timothy Raben

07_Raben.pdf

11:40 → 12:00 Next-to-leading order corrections for scattering amplitudes in high-energy QCD

Speaker: Yair Mulian

08_Mulian.pdf

12:00 → 13:00 Discussion session I: low x, PDFs, saturation

Conveners: Grigorios Chachamis (Universidad de Valencia (ES)), Jochen Bartels, Michal Praszalowicz (Jagiellonian University, Krakow)

13:00 → 14:30 Lunch

14:30 → 15:00 Review of low x physics at LHCb

Speaker: Albert Bursche (Universitaet Zuerich (CH))

09_Bursche.pdf

15:00 → 15:20 Conformal Regge Theory from String/Gauge Duality and Inclusive Central Production

Speaker: Chung-I Tan

10_Tan.pdf

15:20 → 15:40 Amplitudes in high energy factorisation via BCFW recursion

Speaker: Mirko Serino

Low-x_2015_Serino.pdf

15:40 → 16:10 Measurements of Drell-Yan and vector boson plus jet productions in ATLAS

Speaker: Marisilvia Donadelli (Universidade de Sao Paulo (BR))

ATL-COM-PHYS-2015-1055.pdf

16:10 → 16:35 Coffee break

16:35 → 16:55 Inclusive three jet production at the LHC

Speakers: Grigorios Chachamis (IFT UAM/CSIC, Madrid), Grigorios Chachamis (PSI), Grigorios Chachamis (Uni. Wuerzburg), Grigorios Chachamis (Universidad de Valencia (ES)), Grigorios Chachamis (IFIC (CSIC/UV) Valencia)

13_Chachamis.pdf

16:55 → 17:15 Evolution of double parton distributions-fighting with initial conditions

Speakers: Krzysztof Golec-Biernat (Unknown), Krzysztof Golec-Biernat (Institute of Nuclear Physics, Cracow), Krzysztof Golec-Biernat, Krzysztof Jan Golec-Biernat (Institute of Nuclear Physics PAN, Krakow, Poland)

lowx_kgb.pdf

17:15 → 17:45 Search for QCD instantons at HERA

Speaker: Stanislav Mikocki

15_Mikocki.pdf

17:45 → 19:00 Discussion session II: low x, saturation, theory

Conveners: Grigorios Chachamis (Universidad de Valencia (ES)), Jochen Bartels, Michal Praszalowicz (Jagiellonian University, Krakow)

Wednesday, 2 September

09:00 → 09:35 Diffractive Dijet Production with a Leading Proton in ep Collisions

Speaker: Sergey Levonian (Deutsches Elektronen-Synchrotron Hamburg and Zeuthen (DE))

lowx2015_levonian_dijets.pdf

09:35 → 10:05 Prompt photons in diffractive photoproduction

Speaker: Iurii Shyrma

Shyrma.pdf

10:05 → 10:35 Measurements of inelastic, elastic and total pp cross-sections at the LHC with ATLAS

Speaker: Michel Trottier-Mcdonald (Lawrence Berkeley National Lab. (US))

ppinel08.pdf

10:35 → 11:00 Coffee

11:00 → 11:30 TOTEM results

Speaker: Leszek Grzanka (AGH University of Science and Technology (PL))

SlidesLG.pdf

SlidesLG.pptx

11:30 → 11:50 Simultaneous analysis of proton-proton and proton-antiproton differential cross sections of elastic scattering with the real extended Bialas-Bzdak model

Speakers: Tamas Csorgo (Harvard University), Tamas Csorgo (Hungarian Academy of Sciences (HU))

05_Csorgo.pdf

11:50 → 12:00 Organisational matters

Speaker: Maciej Marek Trzebinski (Polish Academy of Sciences (PL))

Excursion_and_Dinner.pdf

12:00 → 13:00 Discussion session III: diffraction at HERA, soft diffraction

Conveners: Marek Tasevsky (Acad. of Sciences of the Czech Rep. (CZ)), Rafał Staszewski (IFJ PAN Cracow (PL)), Tamas Csorgo (Hungarian Academy of Sciences (HU))

13:00 → 14:30 Lunch

14:30 → 15:00 Combination of Differential D^{*+-} Cross-Section Measurements in Deep-Inelastic ep Scattering at HERA

Speaker: Prof. Lidia Goerlich

06_Goerlich.pdf

15:00 → 15:20 Hard diffraction with proton tagging at the LHC

Speaker: Maciej Marek Trzebinski (Polish Academy of Sciences (PL))

Trzebinski_Hard_diffraction.pdf

15:20 → 15:40 Diffraction dissociation at the LHC

Speaker: Laszlo Jenkovszky (National Academy of Sciences of Ukraine)

08_Jenkovszky.pdf

15:40 → 16:00 Diffractive production of heavy mesons

Speaker: Marta Luszczak (University of Rzeszow)

Sandomierz_Marta.pdf

16:00 → 16:30 Coffee

16:30 → 16:50 Diffractive W production and measurement of the quark densities in the Pomeron

Speaker: Rafał Staszewski (IFJ PAN Cracow (PL))

2015.09.02_staszewski.pdf

16:50 → 17:15 Measurement of dijet production in diffractive events with the ATLAS detector

Speakers: Marek Tasevsky (Acad. of Sciences of the Czech Rep. (CZ)), Marek Tasevsky (A)

11_Tasevsky.pdf

11_Tasevsky.ppt

17:15 → 18:30 Discussion session IV: inclusive diffraction at LHC

Conveners: Marek Tasevsky (Acad. of Sciences of the Czech Rep. (CZ)), Rafał Staszewski (IFJ PAN Cracow (PL)), Tamas Csorgo (Hungarian Academy of Sciences (HU))

Thursday, 3 September

09:00 → 09:30 Photon-hadron collisions in Alice

Speaker: Rainer Schicker (Ruprecht-Karls-Universitaet Heidelberg (DE))

01_Schicker.pdf

09:30 → 09:50 Initial State correlations and the ridge in pp and pPb collisions at the LHC

Speaker: Tolga Altinoluk

02_Altinoluk.pdf

09:50 → 10:10 Vector meson photoproduction - from central to ultraperipheral heavy ion collisions

Speakers: Mariola Jadwiga Klusek-Gawenda (Polish Academy of Sciences (PL)), Mariola Kłusek-Gawenda (IFJ PAS)

MKG_lowX2015.pdf

10:10 → 10:30 Improved TMD factorization for forward dijet production in dilute-dense hadronic collisions

Speakers: Piotr Kotko, Piotr Kotko, Piotr Kotko (Penn State University)

Kotko_lowx2015_1.pdf

10:30 → 11:00 Coffee

11:00 → 11:30 Identified particle spectra in single diffractive dissociation process in pp at $\sqrt{s}$=200 GeV measured with the STAR detector

Speaker: Lukasz Fulek

fulek_Lowx.pdf

11:30 → 11:50 Classical gluon production amplitude in heavy ion collisions

Speakers: Giovanni Antonio Chirilli (The Ohio State University), Giovanni Antonio Chirilli (The Ohio State University), Giovanni Antonio Chirilli (CPHT-Polytechnique & LPT d'Orsay), Giovanni Antonio Chirilli (Lawrence Berkeley National Laboratory (LBNL))

06_Chirilli.pdf

11:50 → 13:00 Discussion session V: heavy ions

Conveners: Piotr Kotko, Tolga Altinoluk

07_Heavy_Ion_discussion.pdf

13:00 → 14:30 Lunch

14:30 → 18:30 Excursion

Sandomierz sightseeing

19:00 → 22:00 Conference dinner

Friday, 4 September

09:00 → 09:30 Measurement of exclusive diffractive dijet production in Deep Inelastic Scattering with the ZEUS experiment at HERA

Speaker: Marcin Guzik

DDIS_low_x_Sandomierz_guzik.pdf

09:30 → 09:50 Photon quartic anomalous coupling studies uding proton tagging at the LHC

Speaker: Christophe Royon (University of Kansas (US))

lowx2015.pdf

09:50 → 10:25 Two photon physics at the LHC (CMS)

Speakers: Krzysztof Piotrzkowski (Universite Catholique de Louvain (UCL) (BE)), Krzysztof Piotrzkowski (Universite Catholique de Louvain (UCL) (BE))

KPiotrzkowski.pdf

KPiotrzkowski.pptx

10:25 → 10:50 Coffee

10:50 → 11:20 Measurement of exclusive gamma+gamma -> ll production in proton-proton collisions with the ATLAS detector

Speaker: Chav Chhiv Chau (University of Toronto (CA))

yyll_lowx2015_v3.pdf

11:20 → 11:50 Central Exclusive Production of meson pairs in proton-proton collisions at \sqrt{s}=200 GeV in the STAR experiment at RHIC

Speaker: Rafal Sikora (none)

RSikora_CEP_Low-X_Sandomierz.pdf

11:50 → 12:10 Exclusive J/Psi and Upsilon production

Speaker: Alan Martin

06_Martin.pdf

12:10 → 13:00 Discussion session VI: Exclusive diffraction

Conveners: Alan Martin, Christophe Royon (University of Kansas (US)), Valentina Avati (AGH University of Science and Technology (PL))

jpsi2015.pdf

13:00 → 14:30 Lunch

14:30 → 15:00 CT-PPS

Speaker: Krzysztof Piotrzkowski (Universite Catholique de Louvain (UCL) (BE))

krzysztof2.pdf

krzysztof2.pptx

15:00 → 15:20 Diffractive charm production

Speaker: Rafal Maciula (Institute of Nuclear Physics PAN)

Sandomierz-Maciula.pdf

15:20 → 15:40 Quarkonium photoproduction in pp and pA at the LHC

Speaker: Maria Beatriz De Leone Gay (U)

talk-low-x.pdf

15:40 → 16:00 Diffractive and exclusive production of light mesons in proton-proton collisions

Speaker: Piotr Lebiedowicz (Institute of Nuclear Physics PAN)

Lebiedowicz_Lowx.pdf

16:00 → 16:20 Coffee

16:20 → 16:40 Lepton pair production and proton dissociation

Speaker: Wolfgang Schaefer (Institute of Nuclear Physics PAN)

Schafer_Sandomierz.pdf

16:40 → 17:10 Exclusive photoproduction of rho0 mesons with a leading neutron at HERA

Speaker: Sergey Levonian (Deutsches Elektronen-Synchrotron Hamburg and Zeuthen (DE))

lowx2015_levonian_rhoLN.pdf

17:10 → 17:40 ZEUS Measurement of the cross-section ratio sigma(Psi(2S))/sigma(J/psi) in deep inelastic exclusive ep scattering at HERA

Speaker: Grzegorz Grzelak

13_Grzelak.pdf

17:40 → 18:30 Discussion session VII: vector mesons

Conveners: Beatriz Gay Ducati, Sergey Levonian (Deutsches Elektronen-Synchrotron Hamburg and Zeuthen (DE)), Wolfgang Schaefer (Institute of Nuclear Physics PAN)

Saturday, 5 September

08:30 → 08:55 Measurement of Bose-Einstein correlations in ATLAS

Speaker: Rafał Staszewski (IFJ PAN Cracow (PL))

2015.09.05_staszewski.pdf

08:55 → 09:25 Measurements of the jet production properties and strong coupling constant in ATLAS

Speaker: Fernando Barreiro Alonso (Universidad Autonoma de Madrid (ES))

09:25 → 09:50 Double parton scattering effects in four-jet and four charm production at the LHC

Speaker: Antoni Szczurek (Institute of Nuclear Physics)

09:50 → 10:20 Measurements of the jet and photon production cross sections in ATLAS

Speakers: Hilal Kucuk (UCL), Hilal Kucuk (University of London (GB))

LowMuRunLowXConference.pdf

10:20 → 10:45 Coffee

10:45 → 11:05 Two component model for hadroproduction in high energy collisions

Speakers: Aleksandr Bylinkin (National Research Nuclear University MEPhI (RU)), Alexander Bylinkin (ITEP)

Bylinkin_Lowx_2015.pptx

11:05 → 11:35 Measurements of Minimum Bias events, underlying event and particle production properties in ATLAS

Speaker: Krzysztof Wieslaw Wozniak (Polish Academy of Sciences (PL))

kwozniak_ATL-COM-PHYS-2015-1018.pdf

11:35 → 11:55 Fitting the HERA Data with Collinearly-Improved High-Energy Evolution

Speakers: José Daniel Madrigal, Juan Pablo Madrigal (Universidad de Costa Rica)

11:55 → 13:00 Discussion session VIII: Jets, underlying events...

Conveners: Fernando Barreiro Alonso (Universidad Autonoma de Madrid (ES)), Gosta Gustafson (Lund University)

13:00 → 13:10 Closing

Speakers: Christophe Royon (University of Kansas (US)), Michal Praszalowicz (Jagiellonian University, Krakow)

13:10 → 14:30 Lunch

14:30 → 14:50 Photos

Lowx2015_photos.zip