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SN1987A Constraints on Large Compact Dimensions [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 1999.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
9 pages : digital, PDF file
Additional Creators:
Stanford Linear Accelerator Center, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
Recently there has been a lot of interest in models in which gravity becomes strong at the TeV scale. The observed weakness of gravitational interactions is then explained by the existence of extra compact dimensions of space, which are accessible to gravity but not to Standard Model particles. In this letter we consider graviton emission into these extra dimensions from a hot supernova core. The phenomenology of SN1987A places strong constraints on this energy loss mechanism, allowing us to derive a bound on the fundamental Planck scale. For the case of two extra dimensions we obtain a very strong bound of M ≥ 50 TeV, which corresponds to a radius R ≤ 0.3 {micro}m. While there are a lot of sources of uncertainty associated with this bound, we find that pushing it down to the few-TeV range, which could in principle be probed by ground-based experiments, is disfavored. For three or more extra dimensions the SN1987A constraints do not exclude a TeV gravitational scale.
Report Numbers:
E 1.99:slac-pub-8084
slac-pub-8084
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
03/23/1999.
"slac-pub-8084"
Perelstein, Maxim.
Type of Report and Period Covered Note:
Topical;
Funding Information:
AC03-76SF00515
View MARC record | catkey: 13824517