SUSY ACROSS THE SKY
碩士 === 國立清華大學 === 物理學系 === 94 === In gauge-mediated models, the next-to-lightest supersymmetric particle (NLSP), may travel a long distance before decaying into a gravitino and a photon. The collider experiment is not able to distinguish such a scenario from the usual supergravity models when the de...
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| Format: | Others |
| Language: | en_US |
| Published: |
2006
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| Online Access: | http://ndltd.ncl.edu.tw/handle/55491222482983429063 |
| Summary: | 碩士 === 國立清華大學 === 物理學系 === 94 === In gauge-mediated models, the next-to-lightest supersymmetric particle (NLSP), may travel
a long distance before decaying into a gravitino and a photon. The collider experiment is not
able to distinguish such a scenario from the usual supergravity models when the decay time of the
NLSP is long enough. Here we propose a new method to detect such a long decay of the NLSP.
The high energy cosmic rays hitting the atmosphere will produce a lot of SUSY particles, which
decay promptly into the NLSP. The can travel a distance of the order of the atmosphere and
decays into a photon and a gravitino. We suggest to use the ground-based arrays of telescopes to
detect the photon. This method can probe a SUSY breaking scale sqrt(<F>) ~ 10^4~10^6 GeV. The event
rate could be as high as O(10^(-4)) per km^2 per year per sr.
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