Tracing Tau-Neutrinos from WIMP-Annihilation

نویسنده

  • Marek Kowalski
چکیده

Accumulation and annihilation of weakly interacting massive particles (WIMPs) in the earth and the sun may be observed by the resulting neutrino signal. We demonstrate that, for certain parts of the SUSY parameter space, present and future neutrino telescopes can expect a higher rate of events due to tau-neutrinos than due to muon-neutrinos. We show how neutrino-oscillation, and in the case of the sun also scattering, absorption and regeneration modify the signal expectation.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Dynamics of WIMPs in the Solar System and Implications for Direct and Indirect Detection

Semi-analytic treatments of the evolution of orbits of weakly interacting massive particles (WIMPs) in the solar system suggest that the WIMPs bound to the solar system may enhance the direct detection rate relative to that of the unbound population by up to a factor of order unity, and boost the flux of neutrinos from WIMP annihilation in the Earth by up to two orders of magnitude. To test the...

متن کامل

An Indirect Search for WIMPs with Super-Kamiokande

A potential source of high energy neutrinos is the annihilation of Weakly Interacting Massive Particles (WIMPs) collecting in gravitational potential wells such as the centers of the Earth, the Sun, or the Galaxy. A search for such a WIMP annihilation signal using the Super-Kamiokande (SuperK) detector is presented. Super-K observes 1.1 upward throughgoing muons per day. These events are caused...

متن کامل

WIMP annihilation and cooling of neutron stars

Since Zwicky proposed the problem of the ‘‘missing mass’’ in 1933, a lot of theoretical and experimental effort has been made in order to unveil the nature of dark matter. Today, WMAP has provided very accurate data regarding the matter density in the Universe [1]. The energy density of the Universe is composed of 4% atoms and roughly 22% dark matter. Data from recent observations indicate that...

متن کامل

Indirect Detection of Dark Matter WIMPs in a Liquid Argon TPC

We assess the prospects for indirect detection of Weakly Interacting Massive Particles using a large Liquid Argon TPC detector. Signal events will consist of energetic electron (anti)neutrinos coming from the decay of τ leptons and b quarks produced in WIMP annihilation in the core of the Sun. Background contamination from atmospheric neutrinos is expected to be low, thanks to the superb angula...

متن کامل

An indirect search for WIMPs in the Sun and the Earth using upward-going muon events in Super-Kamiokande

We present the result of an indirect search for high energy neutrinos from WIMP annihilation in the Sun and in the Earth using upward-going muon events at Super-Kamiokande. Datasets from SKI-SKIII (3109.6 days) were used for the analysis. We looked for excesses of neutrino signal from the Sun and the Earth as compared with the expected atmospheric neutrino background in three types of upward-go...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000