2nd International Workshop on Antimatter and Gravity (WAG 2013)

Wednesday 13 - Friday 15 November 2013 Center for Fundamental Physics (AEC) University of , CH 3012 Bern,

http://www.einstein.unibe.ch/workshops/wag2013.html

Final Circular (7 October 2013)

The purpose of this meeting is to review the experimental and theoretical aspects of the interaction of antimatter with gravity. Tests of the weak with e.g. positronium, muonium and antihydrogen will be discussed. Progress reports on the experiments at the CERN Antiproton Decelerator and on the available future facilities will be presented. A session is also devoted to the relevance of antimatter with respect to dark energy and dark matter in the universe (theory and experiments).

International Advisory Committee Local Organizing Committee M. Blau (Bern University, Switzerland) Claude Amsler (Chair) G. Chardin (CNRS/IN2P3, France) Akitaka Ariga M. Doser (CERN, Switzerland) Antonio Ereditato T. Jolicoeur (CNRS/Université Paris-Sud, France) Ciro Pistillo A. Kostelecky (Indiana University, USA) Paola Scampoli C. Lämmerzahl (Bremen University, Germany) James Storey M. Oberthaler (Heidelberg University, Germany) Marcella Esposito (Secretary) W. Oelert (Mainz University, Germany) V.V. Nesvizhevsky (ILL, Grenoble, France) P. Perez (CEA, France) Y. Sacquin (CEA, France) G. Testera (INFN-Genova, Italy) P. von Ballmoos (IRAP, Toulouse, France) C. Will (University of Florida, USA) Y. Yamazaki (RIKEN, Japan)

Scientific programme: Wednesday 13 November 2013

08:00-09:00 Registration

09:05-09:15 Prof. A. EREDITATO (Director AEC/LHEP) and Prof. C. LEUMANN (Vice-Rector) Welcome addresses

Session 1

09:30-10:00 A. NOBILI (Pisa) Testing the weak equivalence principle with macroscopic proof masses on ground and in space 10:00-10:30 M. KASEVICH (Stanford) Experimental tests of the weak equivalence principle

Coffee break

11:00-11:30 G. SKINNER (MPE Garching) Antimatter in the universe and the PAMELA/FERMI anomaly 11:30-12:00 P. SALATI (LAPT, Annecy) Dark matter annihilation in the universe ______

Session 2

14:00-14:30 M. JANKOWIAK (University of Heidelberg) Experimental constraints on the gravitational force on antimatter 14:30-15:00 P. CRIVELLI (ETH-) Testing antigravity with positronium 15:00-15:30 K. KIRCH (PSI, Villigen) Testing antigravity with muonium

Coffee break

16:00-16:30 D.B. CASSIDY (University College, London) Weighing antimatter with positronium 16:30-17:00 M. HOLZSCHEITER (New Mexico) Test of the weak equivalence principle from particle-antiparticle cylotron frequency

______

Thursday 14 November 2013

Session 3

09:00-09:30 S. MAURY (CERN) Present and future facilities at CERN 09:30-10:00 D. KRASNICKY (Genova) Measuring gbar with AEgIS, progress and perspectives 10:00-10:30 D.P. VAN DER WERF (Swansea University) The GBAR experiment

Coffee break

11:00-11:30 J. FAJANS (Berkeley) A new technique to measure the gravitational mass of antihydrogen 11:30-12:00 W. QUINT (GSI, Darmstadt) An antigravity experiment for the future FLAIR facility

______

Session 4

14:00-14:30 S. KARSHENBOIM (MPI Garching) Constraints from the weak equivalence principle 14:30-15:00 S. REYNAUD (Laboratoire Kastler-Brossel, Paris) Quantum reflection of antihydrogen from material surface 15:00-15:30 A. VORONIN (Lebedev Physical Institute, Moscow) Gravitational quantum states of antihydrogen

Coffee break

16:00-16:30 P. BRÄUNIG (Heidelberg) Moiré deflectometry with atoms and antiatoms 16:30-17:00 C. BORDÉ (SYRTE, Paris) 5D relativistic optics for matter and antimatter wave interferometry 17:00-17:20 C.S. UNNIKRISHNAN (TIFR, Mumbai) True tests of the weak equivalence principle for antiparticles 17:20-17:40 T. ARIGA (University of Bern) Measuring gbar with emulsion detectors 17:40-18:00 L. HILICO (Laboratoire Kastler-Brossel, Paris) Measuring the free fall of antihydrogen with GBAR

______

Friday 15 November 2013

Session 5

09:00-09:30 H. BAUMANN (Federal Institute of Metrology, Bern) High precision measurements of the gravitational acceleration g 09:30-10:00 L. BLANCHET (Institut d'Astrophysique, Paris) MOND phenomenology and gravitational polarization 10:00-10:30 A. BENOÎT-LÉVY (University College, London) The Dirac-Milne cosmological model

Coffee break

11:00-11:30 J. TASSON (Carleton College, Northfield) Gravity effects on antimatter 11:30-12:00 K. HASHIMOTO (Osaka) Lorentz violation and vacuum structure in string theories

Summary talk: 12:00-13:00 M CHARLTON (Swansea)

Conference Venue:

The workshop will take place in the University of Bern main building ("Hauptgebäude", Kuppelraum), which is only a few minutes walk from Bern main train station.

By train: Once in the railway underground hall please go to the elevators at the north end of the hall. Take the elevator to the top level (4th floor, Grosse Schanze. Turn right and you will see the main building across the lawn. Follow the signs to the Kuppelraum.

By car: Metered parking is also available on the Parkterrasse (see map below). Park your car in the parking lot of the main railway station see http://www.bahnhofparking.ch/site.php. Then follow the signs for the railway station. Take the elevator to Grosse Schanze (4th floor). Turn right and you will see the main building across the lawn. Follow the signs to the Kuppelraum.

The venue address is:

Kuppelraum (Room 501) Hauptgebäude University of Bern Hochschulstrasse 4 3012 Bern

The Kuppelraum is on the top floor of the main building directly under the dome.

Elevator

Proceedings

The contributions will be published online and printed by World Scientific Publishing (open access) in the International Journal of Modern Physics: Conference Series (http://www.worldscientific.com/loi/ijmpcs). The contributions will be peer reviewed.

There are templates (LaTeX and MS Word) available for download at: http://www.worldscientific.com/page/ijmpcs/submission-guidelines Detailed instructions/guides can be found in the zipped files.

Please submit all files including pdf, tex, cls, sty, eps, figures, doc, docx, etc. that you used in producing the final manuscript. Download your .tar or .zip file (yourname.tar or yourname.zip) to http://lheppc91.unibe.ch/WAG13/ . The deadline for submitting your manuscripts is 31 December 2013. The maximum number of pages is 8 per contribution, including figures and references.

Posters:

Pinboards will be available for posters near the lecture hall.

Registration and payment:

If you have not registered yet please do so at https://indico.cern.ch/conferenceDisplay.py?confId=227924

The cost for the conference is 180 CHF, which includes a copy of the proceedings, the conference dinner and coffee breaks. The cost for accompanying persons is 80 CHF. Please pay the conference fee in cash and in Swiss francs at the conference registration desk (08:00-09:00 on Wednesday 13 November). We apologize for not being able to accept credit cards. Accommodation: The deadline for accommodation was 30 June 2013. If you still need a hotel room please consult the web, e.g. http://www.booking.com/city/ch/bern.html Lunches:

A list of nearby restaurants and the university canteen will be provided in the conference folder. Social events:

1) Workshop dinner on the evening of Thursday 14th November at 8 pm. See the map below.

Altes Tramdepot Brauerei Restaurant Grosser Muristalden 6, 3006 Bern, phone 031 368 14 15 http://www.altestramdepot.ch/htm/home.htm

2) Visit of the Albert Einstein House on Wednesday 13 November from 17:00 - 20:30. Tickets can be found in the registration folder. http://www.einstein-bern.ch/index.php?lang=en&show=start&subs=

Einsteinhaus 49 Postfach 638 3000 Bern 8

Other events in Bern can be found in the flyer included in the registration folder. For example: Visit the BERN HISTORICAL MUSEUM: http://www.bhm.ch/en/ e.g. The eternal emperor and his terracotta warriors: http://www.qin.ch/ or the Einstein museum: http://www.bhm.ch/en/exhibitions/einstein-museum/

Internet access:

For instructions to connect via Wi-Fi please consult the conference folder.

Visa:

Participants from some countries will need a visa to enter Switzerland. Please contact Ms. Marcella Esposito if you require an invitation letter: [email protected] .

Weather:

In November, the lowest temperature is around 0◦C and the highest temperature around 6◦C. Short term weather forecast can be found here: http://www.meteoswiss.admin.ch/web/en/weather.html