Results and prospects of forward physics at the LHC: Implications for the study of diffraction, cosmic ray interactions, and more

11 Feb 2013, 14:00 → 12 Feb 2013, 19:00 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

David Berge (NIKHEF (NL)), Michelangelo Mangano (CERN)

This workshop intends to bring together various aspects of forward physics at the LHC. On one side, there is now a proven potential for measurements of soft and hard diffraction, which are enriching, and will continue to enrich, the understanding of basic mechanisms underlying the dynamics of hadron collisions. Hard diffraction, as well as forward jet production, have the additional potential to offer new probes on exotic physics processes, ranging from exclusive Higgs production to high-mass vector boson fusion. The large rapidity acceptance required for these studies challenges the experiments and the accelerator at different levels, but the interplay of multiple detector components, and the possible synergy of different experiments, provide opportunities for new and better measurements, as this workshop aims to show. On the other side, LHC data on forward particle production provide essential input to the modeling of the interaction of the highest-energy cosmic rays with the atmosphere. This workshop will review the status of the understanding of cosmic-ray showers, both from data and from MC simulations, and attempts to define the LHC measurements that are needed to improve the reliability and precision of existing air shower models. The part relevant for cosmic-ray physics is jointly organized by particle and astroparticle physicists, and is meant as a step towards establishing regular information exchange between the two communities. A summary document will be produced after the workshop containing recommendations for future measurements at CERN and the organization of future joint activities. The workshop will open with a common session dedicated to the review of existing data. It will then branch into two parallel sessions, one focused on the cosmic-ray issues, the other one focused on the discussion of the physics prospects after the long LHC shutdown, touching on the potential of possible LHC experimental upgrades and the ensuing accelerator issues. Finally, the format of future common activities of the LHC and the astroparticle physics community in general shall be discussed in plenary session. All sessions of the meeting will be broadcast via VIDYO. On Tuesday, please make sure you connect to the appropriate session (LHC or Cosmic Rays)

Workshop executive summary (cosmic-ray part) Executive summary of the cosmic-ray part of the workshop, compiled by the cosmic-ray session organization panel

Monday, 11 February

14:00 → 18:10 LHC forward physics and cosmic-ray results

Common overview session featuring summary talks of the six LHC experiments and an overview of relevant cosmic-ray results

Conveners: David Berge (NIKHEF (NL)), Michelangelo Mangano (CERN)

14:00 TOTEM: cross sections and forward multiplicity

Speaker: Nicola Turini (Sezione di Pisa (IT))

Slides Totem-elastic-multi.pdf

14:30 LHCf forward physics results

Speaker: Itow Yoshitaka

Slides ATLAS-fwd.pdf LHC-CRitow.pdf

15:00 ATLAS results on forward physics

Speaker: Dr Paul Newman (Birmingham University)

Slides ATLAS-fwd.pdf

15:25 LHCb: Diffractive studies through energy flow and other soft QCD measurements

Speaker: Florin Maciuc (Horia Hulubei National Institute of Physics and Nuclear Enginee)

Slides presentation_CERNWorkshop2.pdf

15:50 Coffee break

16:20 CMS results on hard diffration

Speaker: Ada Solano (Universita e INFN (IT))

Slides Solano-CERNWorkshopForwardPhysics_110213_final_noED.pdf

16:45 CMS: forward jet production and energy flow

Speaker: Igor Katkov (KIT - Karlsruhe Institute of Technology (DE))

Slides fwd_ik_20130211.pdf

17:10 ALICE: Study of the cosmic multiple muon events: results and perspectives

Speaker: Bruno Alessandro (Universita e INFN (IT))

Slides cosmics_alice_workshop_feb2013.pdf

17:35 Review of relevant cosmic-ray results

Speaker: Dr Ralph Engel (Forschungszentrum Karlsruhe)

Slides Cosmic_ray_results.pdf

Tuesday, 12 February

08:55 → 18:30 LHC: prospects and upgrades for forward physics

09:00 Diffractive dissociation at the LHC

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

Slides Jenk_CERN13.pdf Jenk_CERN13.ppt

09:25 pp->ppX

Speaker: Antoni Szczurek (I)

Slides szczurek.pdf

09:45 LHCb: Central Exclusive Production, results and prospects

Speaker: Paula Collins (CERN)

Slides ceptalk_paula_ver3.pdf ceptalk_paula_ver3.pptx

10:10 ALICE: Diffraction studies, status and plans

Speaker: Gerardo Herrera Corral (Centro Invest. Estudios Avanz. IPN (MX))

Slides GHC-ALICE.pdf GHC-ALICE.pptx

10:35 Coffee break

11:05 CMS results on soft diffraction

Speaker: Dr Luiz Martins Mundim Filho (Universidade do Estado do Rio de Janeiro (BR))

Slides SoftDiffraction_final.pdf

11:30 TOTEM: Diffraction studies, status and plans

Speaker: Kenneth Osterberg (University of Helsinki)

Slides KO_TOTEM_diffraction_forward_feb13.pdf

11:55 ALICE: Ultra Peripheral Collision studies

Speaker: Evgeny Kryshen (B.P. Konstantinov Petersburg Nuclear Physics Institute - PNPI ()

Slides 2013-02-12-kryshen-upc.pdf 2013-02-12-kryshen-upc.pptx

12:15 The ALFA detector and prospects for measurements

Speaker: Tomas Sykora (Charles University (CZ))

Slides ALFA_february_2013_presentation_v3.pptx

12:35 Lunch break

13:30 The Forward Calorimeter (FOCAL) project: an ALICE upgrade for the forward physics

Speaker: Thomas Peitzmann (University of Utrecht (NL))

Slides focal-cern-2013.pdf

13:55 The CMS High Precision Spectrometer

Speaker: Michael Albrow (Fermi National Accelerator Lab. (US))

Slides albrowfwdhps.pdf albrowfwdhps.pptx

14:20 TOTEM upgrade prospects

Speaker: Joachim Baechler (CERN)

Slides TOTEM_Upgrade_Prospects_LHC.pdf TOTEM_Upgrade_Prospects_LHC.pptx

14:45 Central Exclusive Higgs production: theory

Speaker: Jeffrey Forshaw (University of Manchester)

Slides CEP-Higgs-CERN-2013.pdf CEP-Higgs-CERN-2013.pptx

15:05 Central Exclusive Higgs production: experimental prospects

Speaker: Andrew Pilkington (University College London)

Slides Pilkington-ExclusiveHiggs.pdf

15:25 The ATLAS AFP detector

Speakers: Christophe Royon (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR)), Marco Bruschi (Universita e INFN (IT))

Slides theory_120212.pdf

15:50 AFP physics prospects

17:05 Coffee break

17:20 Wrap up joint discussion on next steps and possible coordinated activities between Cosmic Ray and LHC communities

09:00 → 14:00 Cosmic-ray morning session

Cosmic-ray results, collider results of relevance to cosmic-ray physics, physics of extended air showers, future input or precision of collider results.

Convener: David Berge (NIKHEF (NL))

Workshop executive summary (cosmic-ray part) Executive summary of the cosmic-ray part of the workshop, compiled by the cosmic-ray session organization panel

09:00 Introduction to and goals of the cosmic-ray session

Speaker: David Berge (NIKHEF (NL))

09:10 Modelling of air showers - overview

Speaker: Dr Johannes Knapp (University of Leeds)

Slides 2013_CERN_forw.pdf

09:45 Modelling of air showers - theoretical basis of hadronic interaction models

Speaker: Sergey Ostapchenko (Norwegian University for Science and Technology (NTNU))

Slides ostapchenko.pdf

10:30 Coffee / Tea

11:00 Connecting collider data with air-shower physics

Speaker: Dr Tanguy Pierog (KIT)

Slides Collider_EAS_Pierog.pdf

11:30 Glauber model tests, extrapolations, etc

Speaker: Dr Ralf Matthias Ulrich (KIT - Karlsruhe Institute of Technology (DE))

Slides RalfUlrich.pdf

12:00 Prospects for light-ion LHC running

Speaker: Django Manglunki (CERN)

Slides Prospects_for_light-ion.pdf Prospects_for_light-ion.pptx

12:20 Lunch

14:00 → 18:20 Cosmic-ray afternoon session

Convener: David Berge (NIKHEF (NL))

Workshop executive summary (cosmic-ray part) Executive summary of the cosmic-ray part of the workshop, compiled by the cosmic-ray session organization panel

14:00 NA61 experimental results relevant for CR physics, and specific EAS needs

Speaker: Michael Unger (KIT - Karlsruhe Institute of Technology (DE))

Slides na61.pdf

14:30 Diffuse and prompt neutrinos in IceCube

Speaker: Anne Schukraft (RWTH Aachen)

Slides SchukraftIceCubePromptCERNFeb12.pdf

15:00 Charm production in the atmosphere and relevance for the IceCube results

Speaker: Rikard Enberg (Uppsala University)

Slides enberg-neutrinos.pdf

15:35 Muon bundles at LEP / LHC / EMMA

Speaker: James Pinfold (University of Alberta (CA))

Slides Muon-Bundles-CERN-Workshop-2013.pdf

16:05 Inclusive muon measurements: OPERA muon charge ratio

Speaker: Nicoletta Mauri (Istituto Nazionale Fisica Nucleare (IT))

Slides Mauri_LHC-CR_2013.pdf

16:30 Inclusive measurements of atmospheric muons: connecting air-shower physics to colliders

Speaker: Anatoli Fedynitch (KIT - Karlsruhe Institute of Technology (DE))

Slides Inclusive_muons_CR_workshop.pdf

16:50 Coffee break

TH common room

17:20 Reconvene in plenary session with the LHC session in the TH Auditoirum, for final discussion

Format of future common particle / astroparticle physics activities

Speaker: Discussion