Event calendar file
3-11 July 2007
Merida, Mexico
Mexico/General timezone
- icrc2007@icrc2007.unam.mx
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HE 3.3
Place
Location: Merida, Mexico
Room: Kabah (Holiday Inn)
Date:
from 9 Jul 11:47 to 10 Jul 11:55
Timetable | Contribution List
Displaying 15
contributions
out of
15
We discuss the general observational upper limits on the total annihilation rate of
dark matter derived from the diffuse gamma ray background measured by the EGRET
satellitr. We assume that the dark matter annihilates at tree level in the least
detectable final states in the Standard Model, namely neutrinos. Any other decay
channel would lead to stronger constraints. Electroweak jet cascading
... More
Presented by Dr. Pasquale Dario SERPICO
on
10/7/2007
at
13:54
The General Antiparticle Spectrometer (GAPS) exploits low energy antideuterons
produced in neutralino-neutralino annihilations as an indirect dark matter (DM)
signature that is effectively free from background. When an antiparticle is captured
by a target material, it forms exotic atom in an excited state which quickly decays
by emitting X-rays of precisely defined energy and a correlated pio
... More
Presented by Dr. Jason E KOGLIN
on
10/7/2007
at
16:30
We calculate the antideuteron flux expected from dark matter annihilation in the
galactic halo.
The propagation is treated in a full 2-D propagation model consistent with the
results obtained from the propagation of B/C and other galactic species.
We discuss the potentials of this indirect dark matter detection means and evaluate
the possible sources of uncertainties affecting future measur
... More
Presented by Dr. Fiorenza DONATO
on
10/7/2007
at
15:30
The Gamma-Ray Large Area Space Telescope (GLAST),scheduled to be
launched in Fall 2007, is a next generation high energy gamma-ray
observatory. The Large Area Telescope (LAT) instrument on-board GLAST
with a wide field of view (>2 sr), large effective area and 20 MeV to
>300 GeV energy range, will provide excellent opportunity for future
Dark Matter studies.
We present an overview o
... More
Presented by Dr. Eric NUSS
on
10/7/2007
at
16:06
A number of models of quantum gravity violate Lorentz invariance and
predict an energy dependence of the speed of light, leading to a dispersion
of signals at high energies that travel over cosmological distances. Limits
on the dispersion from short-duration substructures observed in soft
gamma-rays emitted by GRBs at cosmological distances have provided
interesting bounds on this violation o
... More
Presented by Prof. Stefan WAGNER
on
10/7/2007
at
16:42
As a prototype for the AMS-02 experiment, the AMS-01 particle spectrometer was flown
on the
Space Shuttle Discovery in near earth orbit for a ten day mission in June 1998.
Concerning the
identification of positrons, AMS-01 was limited to energies below 3 GeV due to the
vast proton
background and the characteristics of the subdetectors. In order to extend the
sensitivity towards
higher ener
... More
Presented by Prof. Stefan Schael SCHAEL
on
9/7/2007
at
16:50
The Alpha Magnetic Spectrometer (AMS), to be installed on the International Space
Station, will provide data on cosmic radiations in a large range of rigidity from 0.5
GV up to 2 TV. The main physics goals in the astroparticle domain are the anti-
matter and the dark matter searches.
Observations and cosmology indicate that the Universe may include a large amount of
unknown Dark Matter. It sh
... More
Presented by Dr. Sylvie ROSIER-LEES
on
10/7/2007
at
15:42
The nearby dwarf spheroidal galaxy Draco with its high mass to light ratio
is a promising target for indirect dark matter (DM) searches. It is
located at a distance of about 82 kpc, at the edge of the Milky Way. The
dwarf galaxy is enclosed by a DM halo where the DM particle may annihilate
and produce an observable gamma-ray flux.
Among the different DM particle candidates the lightest supers
... More
Presented by M. RISSI
on
10/7/2007
at
16:18
Within the Cold Dark Matter scenario of structure formation, assuming the dark matter
is composed by common candidates such as supersymmetric particles, the smallest bound
structures have masses as low as 10^-6. High-resolution N-body experiments have shown
that a large fraction of these small structures survive hierarchical clustering and
can be found within the halo of our own Galaxy.
These
... More
Presented by Dr. Lidia PIERI
on
10/7/2007
at
14:42
Indirect detection signals from dark matter annihilation are studied in the positron channel. We discuss in detail the
positron galactic production spectra and their propagation inside the galactic medium. Predictions for current and
upcoming detectors are provided for neutralino dark matter in a variety of supersymmetric schemes. Correlations
with other indirect detection signals are discu
... More
Presented by Dr. Fiorenza DONATO
on
10/7/2007
at
14:06
Dwarf Sphreroidal galaxies are amongst the best target to search for a Dark Matter
annihilation signal. The annihilation of WIMPs in the center of Sgr dwarf would
produce high energy gamma-rays in the final state. Observations carried out with the
H.E.S.S. array of Imaging Atmospheric Cherenkov telescopes are presented. A careful
modelling of the Dark Matter halo profile of Sgr dwarf was perfo
... More
Presented by Dr. Emmanuel MOULIN
on
10/7/2007
at
14:30
If non-baryonic dark matter exists in the form of neutralinos, a neutrino flux is
expected from the decay of neutralino pair annihilation products inside heavy
celestial bodies. Data taken with the AMANDA-II neutrino telescope located at the
South Pole can be used in a search for this indirect dark matter signal. We will
present current results from searches for neutralinos accumulated in th
... More
Presented by Mr. Daan HUBERT
on
10/7/2007
at
14:18
The space satellite GLAST is expected to play a crucial role in indirect Dark Matter searches, thanks both to its ability
to perform observations at energy scales comparable to the mass of common dark matter candidates and to its
potential of making deep full-sky maps in gamma-rays, thanks to its large field-of-view. Here we will describe the
prospects for detecting gamma-rays from point sou
... More
Presented by Dr. Aldo MORSELLI
on
10/7/2007
at
15:54
Observation of cosmic-ray positron spectrum at the HEAT experiment indicates an
excess at high energies (>8 GeV). It is suggested that the excess may be associated
with dark matter annihilation. We calculate the Galactic positron flux from dark
matter annihilation in the frame of supersymmetry, taking the enhancement of the flux
by existence of dark matter substructures into account. The propa
... More
Presented by Dr. Qiang YUAN
The annihilation of relic Dark Matter(DM) in the galactic halo leads to a
new primary source of gamma rays, positrons and antiprotons, which may
be observed as an excess on top of the cosmic rays (CR) background
calculated within a galactic model. With assumptions of isotropic propagation
and smooth gas distribution the uncertainties in the prediction of local CR
fluxes do not exceed 20%
... More
Presented by Dr. Valery ZHUKOV
on
10/7/2007
at
13:42
