Nuclear physics for Galactic Cosmic Rays in the AMS-02 era

3 déc. 2012, 08:00 → 4 déc. 2012, 15:30 Europe/Paris

LPSC

Scientific goals: the aim of the workshop is to gather experts in the field of Galactic Cosmic-Rays (GCR) and nuclear physics in order to discuss topics at the crossroad between the two fields. For instance, a key question is to assess if and how fragmentation models (in the range 100 MeV/n-10 GeV/n) used in GCR physics for data analysis (e.g., CREAM, AMS, ...) and their interpretation can be improved. The workshop will also provide the opportunity to develop  new collaborations between the participants.

Workshop keypoints: the workshop is structured as follows: i) presententation from the GCR scientists to the nuclear physics community about their requirements; ii) review on the latest developments on nuclear fragmentation and its modelling. The second day of the workshop will focus on i) higher energy hadronic interactions, and ii) neutrons and GCRs. A large fraction of the time will be left for discussions.
Financial support: the workshop is supported by the PNHE (Programme National des Hautes Energies) and the CPTG (Centre de Physique Théorique de Grenoble).
N.B.: financial support may be granted for PhD students and post-doc working in France (contact dmaurin@lpsc.in2p3.fr)
Location: conference room, LPSC (Laboratoire de Physique Subatomique et Cosmologie)
LOC: David Maurin (dmaurin@lpsc.in2p3.fr), Françoise PETIOT (petiot@lpsc.in2p3.fr, for administrative matters), Emmanuelle Vernay.
SOC: Sébastien CHABOD (LPSC), Laurent DEROME (LPSC), Fanny FARGET (GANIL), William Gillard (LPSC), Grégoire KESSEDJIAN (LPSC), Ulli KOESTER (ILL), David MAURIN (LPSC), Jean-Stéphane RICOL (LPSC), Pierre SALATI (LAPTh), Vincent TATISCHEFF (CSNSM).

lundi 3 décembre

09:45 → 10:20 Coffee

10:20 → 10:25 Welcome address (Serge Kox, Director)

10:25 → 10:30 Goals and format of the Workshop

Orateur: M. David Maurin (LPSC)

Slides 2012-12_LPSC_intro.pdf

10:35 → 12:40 Galactic Cosmic Rays (GCRs)

The session is dedicated to a review of GCR studies (experiments and phenomenology). We start with a general review of their importance to study standard astrophysical mechanisms (and also to study dark matter indirect searches). Focusing on the nuclear component, the issue of fragmentation is emphasised: the limitation on CR phenomenology studies brought by the cross sections uncertainties are detailed. The impact of these cross sections is also discussed in the light of the CR flux reconstruction from various contemporary experiments (the balloon-borne CREAM, the PAMELA satellite, AMS-01 on the shuttle and AMS-02 on the ISS).

Président de session: Vincent Tatischeff (CSNSM)

10:35 Overview of GCRs [15'+10']

Orateur: Dr Fiorenza Donato (Dept. Theoretical Physics)

Slides donato.pdf

11:00 Nuclear fragmentation and GCR phenomenology [15'+10']

Orateur: M. David Maurin (LPSC)

Slides 2012-12_LPSC_XSections_short.pdf

11:25 CREAM balloon: fragmentation in the residual atmosphere [10'+5']

Orateur: Laurent Derome derome (LPSC)

Slides derome.pdf

11:40 PAMELA satellite: fragmentation in the instrument [15'+10']

Orateur: Dr Alessandro Bruno (INFN, Sezione di Bari)

Slides Bruno_PAMELA_Grenoble2012.pdf

12:05 AMS-01 on the shuttle: analysis of LiBeB fluxes and fragmentation [12'+8']

Orateur: Dr Nicola Tomassetti (INFN Perugia & University)

Transparents NT_Grenoble_03Dec2012.pdf

12:25 Overview and challenges for AMS-02 [10'+5']

Orateur: Dr Sylvie Rosier Rosier Lees (LAPP)

Slides Rosier.pdf

12:40 → 14:15 Lunch @ LPSC cantine

14:15 → 15:15 Meteorites

review of meteoritic studies + cross-section measurements/models used

Président de session: Vincent Tatischeff (CSNSM)

14:15 Nuclide production in extraterrestrial matter [45'+15']

Orateur: Prof. Ingo LEYA (Universität Bern)

Slides Leya_Grenoble_12_2012.ppt

15:15 → 18:05 Nuclear physics in the 50 MeV/n - 10 GeV/n range

Review on models, measurements, facilities...

Président de session: Fanny FARGET (GANIL)

15:15 Overview of the fragmentation mechanisms [25'+15']

Orateur: Prof. Jose Benlliure (Universidad de Santiago de Compostela)

Slides NP4GCR_benlliure_.ppt

15:55 Review on existing data/databases and facilities [25'+15']

Orateur: Dr Frank Goldenbaum (INSTITUT FÜR KERNPHYSIK (IKP))

Slides data_bases.pdf

16:35 Coffee break

17:00 Review on existing fragmentation codes [25'+15']

Orateur: Dr Alain BOUDARD (CEA-IRFU/SPhN)

Slides Grenoble_GCR_AB.pdf

17:40 Geant4 models for hadron production [15'+10']

Orateur: Prof. Vladimir Ivanchenko (CERN)

Slides VI_Fragm.pdf

18:05 → 18:50 Discussions

What actions to take?
How to collaborate ?
What is possible/desired?
Implementation in GEANT@CERN?

20:00 → 22:00 Cheese-based social dinner

mardi 4 décembre

09:00 → 10:40 Coalescence and higher energy interaction

Another important topic in GCRs is the measurements of secondary anti-protons, anti-deuterons, and electrons and positrons (in the 100 MeV - 1 TeV range) produced in the Galaxy (CR interacting on the interstellar gas, dominated by H and He). Their production relies on sometimes old measurements and simple models. The differences between the various approaches are now at the level or larger than the statistical uncertainties on the GCR data. Moreover, interations in the GCR detectors (material Z>2) must be accounted for. What are the best hadronic packages for such calculations? Is it possible to have new measurements of these cross sections from colliders?

09:00 GCR antiprotons, antideuterons, e+, e-, and gamma-rays: introduction [10'+5']

Orateur: M. Pierre SALATI (Laboratoire d'Annecy-le-Vieux de Physique Théorique LAPTH)

Slides GCR_grenoble_121204.ppt

09:15 Impact of cross section uncertainties on GCR e+ and e- fluxes [7'+5']

Orateur: Dr Julien Lavalle (Lab. Univers & Particules de Montpellier (LUPM))

Slides lavalle_04XII2012.pdf

09:27 Impact of cross section uncertainties on diffuse gamma-ray calculations [7'+5']

Orateur: Dr Timur Delahaye (LAPTh & IAP)

Transparents Delahaye

09:39 Geant4 models for anti-protons, positrons, and gamma [15'+6']

Orateur: Prof. Vladimir Ivantchenko (CERN)

Slides VI_ep.pdf

10:00 Prospects of better measurements with NA61/SHINE at CERN SPS [15'+5']

Orateur: Dr Boris Popov (LPNHE(Paris) & JINR(Dubna))

Transparents SHINE_Grenoble.pdf

10:20 Discussions

10:40 → 11:00 Coffee break

11:00 → 12:40 Neutrons detectors, solar modulation and GCRs

GCRs suffer from solar modulation in the solar cavity. A good proxy for the level of modulation is given by neutron monitors. What information can we get from them?

Président de session: Laurent Derome derome (LPSC)

11:00 Solar modulation and GCRs: [10'+5']

Orateur: Dr Fernando Barao (LPSC/LIP-IST)

Slides FragW2012.SM-FBarao.pdf

11:15 Neutron Monitor data to monitor GCR data [8'+5']

Orateur: M. David Maurin (LPSC)

Slides 2012-12_LPSC_NMs.pdf

11:28 GCR monitoring at Auger site [7'+5']

Orateur: M. Karim Louedec (LAL)

Slides TalkKarim_GCR.pdf

11:40 European Network of Neutron Monitors [15'+10']

Orateur: Prof. Karl-Ludwig KLEIN (Observatoire de Paris-Meudon)

Slides

• EIT_20050120.mpg
• NMDB_AMS2012.pdf
• NMDB_AMS2012.pps
• NMDB_AMS2012.ppt
• Sequence_LASCO_20050120.mov

12:05 Neutron production in atmosphere [15'+10']

Orateur: M. Adrien CHEMINET (ONERA)

Slides GCRcheminet.ppt

12:40 → 14:30 Lunch @ LPSC cantine

14:30 → 15:30 Discussions

What to expect from collider measurements/MC approaches?
Possible collaborations on Neutron Monitors?