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Cited by 251

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Gravitino dark matter without R-parity

Open access
Takayama, Fumihiro, Yamaguchi, Masahiro·2000·Physics Letters B
DOI 10.1016/s0370-2693(00)00726-7
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Abstract

Abstract Cosmological issues are examined when the gravitino is the lightest superparticle (LSP) and R-parity is broken. Decays of the next lightest superparticles occur rapidly via R-parity violating interaction, and thus they do not upset the big-bang nucleosynthesis, unlike the R-parity conserving case. The gravitino LSP becomes unstable, but its lifetime is typically much longer than the age of the Universe. It turns out that observations of the diffuse photon background coming from radiative decays of the gravitino do not severely constrain the gravitino abundance, and thus a gravitino weighing less than around 1 GeV can be the dark matter of the Universe when bilinear R-parity violation generates a neutrino mass which accounts for the atmospheric neutrino anomaly.

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Metadata

Authors
Takayama, F., & Yamaguchi, M.
Venue
Physics Letters B
Publisher
Elsevier BV
Published
2000-07
Volume
485
Issue
4
Pages
388-392
ISSN
0370-2693 (ISSN-L)
DOI
10.1016/s0370-2693(00)00726-7
OpenAlex
W2040821609
Cited by
251
References
1
FWCI
1.37
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Gravitino dark matter without R-parity. https://app.cochat.ai/papers/10.1016/s0370-2693(00)00726-7
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Takayama, F., & Yamaguchi, M. (2000). Gravitino dark matter without R-parity. Physics Letters B. https://doi.org/10.1016/s0370-2693(00)00726-7

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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