International Cosmic Ray Workshop, Aragats-2009           International Cosmic Ray Workshop, Aragats-2007

  

 

 

    30th International Cosmic Ray Conference, 3-11 July, 2007, Merida, Mexico

    Presenters:

    Anatoli D. Erlykin
    Evidence for a bump in the primary cosmic ray energy spectrum at the 3-200 PeV     to get the article from our server

  

 

 

    20thEuropean Cosmic Ray Symposium in Lisbon, Portugal September 5-8, 2006

    Presenters:

    Alexander Garyaka
    All-particle primary energy spectrum in the knee region using an event-by-event method with the GAMMA experiment   to get the article from our server

    Samvel Ter-Antonyan
    Rigidity dependence test of the primary energy spectra in the knee region: GAMMA experiment   to get the article from our server

    International Cosmic Ray Workshop, Tien-Shan 2006, 25-27 August,
    Almaty city, Republic of Kazakhstan

    Presenter:

    Romen Martirosov

    Energy spectra and elemental composition of primary nuclei
    in the knee region obtained with the GAMMA facility  

    14th International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI),
    Weihai, China, on August 15-22, 2006

    Presenter:

    Romen Martirosov

    Results from the GAMMA array on Mt. Aragats  

    29th Russian Cosmic Ray Conference, Moscow, August  2-7,  2006

    Presenter:

    Samvel Ter-Antonyan
    1. Энергетические спекты первичных ядер в области 1015-1017 эВ по результатам эксперимента ГАММА
    (Energy spectra of primary nuclei in 1015-1017 eV energy range (in Russion))  

    2. Энергетический спектр первичных космических лучей в области излома: эксперимент ГАММА
    (All-particle primary energy spectra in the knee region: GAMMA experiment (in Russion))  

29th ICRC site, Pune, India

29th International Cosmic Ray Conference

Presenters: Romen Martirosov, Lawrence W. Jones, Samvel Ter-Antonyan


Chandrasekhar Conference Hall and Cosmic Ray Community (Pune University, India 2005)

 

Our Presentations:

Status of the GAMMA experiment. 
    Presenter: Romen Martirosov

Primary composition and energy spectra obtained
    with the GAMMA facility. 
    Presenter: Samvel Ter-Antonyan

All-particle primary energy spectrum in the knee
    region. 
    Presenter: Samvel Ter-Antonyan

Understanding the Knee.  
     Presenter: Lawrence W. Jones (USA)

Search for PeV Gamma-ray sources with the
     GAMMA experiment. 
     Presenter: Romen Martirosov


Dr. Romen Martirosov gives a report on
Status of the GAMMA Experiment (HE1.5 section)
 

GAMMA DATA (symbols) and corresponding expected spectra (shaded areas and lines)
For details see preprint: astro-ph/0506588 or 29th ICRC (Pune, India 2005) proceedings

EAS size spectra at different zenith angles

EAS muon truncated size spectra at different zenith angles

EAS size spectra at different muon size thresholds

EAS muon truncated size spectra at different shower size thresholds

EAS age parameter versus EAS size

Nch-Nmu correlation plot

GAMMA EAS data (symbols) and corresponding predictions (shaded areas and lines) according to the SIBYLL2.1 and QGSJET01 interaction models
For details see preprint: astro-ph/0506588 or 29th ICRC (Pune, India 2005) proceedings.

Primary Energy Spectra obtained by the GAMMA Experiment
For details see preprint: astro-ph/0506588 or 29th ICRC (Pune, India 2005) proceedings

All-Particle Energy Spectra Obtained by the GAMMA Experiment
For details see preprint: astro-ph/0506588 or 29th ICRC (Pune, India 2005) proceedings


Samvel Ter-Antonyan's talk about the Primary cosmic ray
spectra and elemental composition (HE1.2 section)


Discussion with Dr. A.Haungs in front of the GAMMA's poster about
the all-particle primary energy spectra (HE1.2 poster section)


High Energy section reporter James Matthews (USA) shows the results of the GAMMA experiment
on Primary Energy Spectra and Elemental Composition in the Knee Region.

 
 

Yerevan Physics Institute
International workshop on GAMMA Experiment
18-20 November, 2004

The first  circular  (1 Nov 2004)

The following topics will be covered:
1. Status of the GAMMA Experiment (present and projects).
2. Extensive Air Shower data and results.
3. Primary energy spectrum and composition.
4. Astrophysical CR sources
 

Applications and Abstracts send to prof. S.Ter-Antonyan 
(samvel@yerphi.am
Deadline: 5 Nov 2004 

Head of GAMMA Experiment: Dr. R. Martirosov

The second  circular  (15 Nov 2004)  
 

GAMMA 2004 Workshop Photo Gallery

 

Workshop participants


From left to the right
upper line: Prof. Samvel Ter-Antonyan, PhD student Hakob Arakelyan, Dr. Yves Gallant, Dr. Romen Martirosov, Dr. Alexander Garyaka, Dr. Sergey Sokhoyan, Dr. Eduard Mnatsakanyan.
lower line: Dr. Sahakyan Vardan, Prof. Jasques Procureur, Prof. Lowrence W.Jones

Head of GAMMA Experiment, Dr. Romen Martirosov reports about status of the GAMMA
Prof. Lowrence Jones from University of Michigan shows where GAMMA fits the spectrum of CR air shower facilities
Prof. Lowrence Jones is going on to explain the GAMMA prospects
Prof. Jasques Procureur from Nuclear Center of Bordeaux explains why the GAMMA is very useful for high energy CR physics
Prof. Jasques Procureur is deep in thought about alfa parameter
Dr. Alexander Garyaka speaks about GAMMA database and data processing
Dr. Sergey Sokhoyan tells about shower maximum and attenuation lenght of GAMMA showers
Head of GAMMA Experiment, Dr. Romen Martirosov summarizes the workshop results