Closing in on the tip of the CMSSM stau coannihilation strip
Near the tip of the ˜τ coannihilation strip in the CMSSM with a neutralino lightest supersymmetric particle χ, the astrophysical cold dark matter density constraint forces the ˜τ−χ mass difference to be small. If this mass difference is smaller than mτ, the ˜τ may decay either in the outer part of a...
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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
26 September 2014
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2014, Volume: 90, Issue: 5 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.90.055031 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.90.055031 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.90.055031 
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| Author Notes: | Nishita Desai, John Ellis, Feng Luo, and Jad Marrouche |
| Summary: | Near the tip of the ˜τ coannihilation strip in the CMSSM with a neutralino lightest supersymmetric particle χ, the astrophysical cold dark matter density constraint forces the ˜τ−χ mass difference to be small. If this mass difference is smaller than mτ, the ˜τ may decay either in the outer part of an LHC detector—the “disappearing track” signature—or be sufficiently long-lived to leave the detector before decaying—the long-lived massive charged-particle signature. We combine searches for these signatures with conventional EmissT searches during LHC Run 1, identifying the small remaining parts of the CMSSM ˜τ coannihilation strip region that have not yet been excluded and discussing how they may be explored during Run 2 of the LHC. |
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| Item Description: | Gesehen am 07.08.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.90.055031 |