Resonant slepton production and right sneutrino dark matter in left-right supersymmetry - INSPIRE

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Resonant slepton production and right sneutrino dark matter in left-right supersymmetry

Mariana Frank
(
- Concordia U., Montreal
)
,
Benjamin Fuks
(
- UPMC, Paris (main) and
- Paris, LPTHE and
- IUF, Paris
)
,
Katri Huitu
(
- Helsinki Inst. of Phys. and
- Helsinki U.
)
,
Santosh Kumar Rai
(
- Harish-Chandra Res. Inst.
)
,
Harri Waltari
(
- Helsinki Inst. of Phys. and
- Helsinki U.
)

Feb 7, 2017

18 pages

Published in:

JHEP 05 (2017) 015

Published: May 3, 2017

e-Print:

1702.02112 [hep-ph]

DOI:

10.1007/JHEP05(2017)015

Report number:

CUMQ-HEP-191,
HIP-2017-01-TH,
HRI-RECAPP-2017-001

View in:

ADS Abstract Service

reference search17 citations

Citations per year

Abstract: (Springer)

Right-handed sneutrinos are natural components of left-right symmetric supersymmetric models where the gauge sector is extended to include right-handed weak interactions. Unlike in other models where right-handed sneutrinos are gauge singlets, here the right sneutrino is part of a doublet and could be a dark matter candidate whose annihilation proceeds via gauge interactions. We investigate this possibility, and find that relic density, low-energy observable and direct supersymmetry search constraints can be satisfied when the lightest supersymmetric particle is a right-handed sneutrino. We introduce benchmarks for left-right supersymmetric realizations where either a sneutrino or a neutralino is the lightest superpartner. We then study the LHC signals arising through resonant right-handed slepton production via a W

_{R}

gauge-boson exchange that lead to final states enriched in leptons, additionally containing a large amount of missing transverse momentum, and featuring a low jet multiplicity. We find that such a resonant production would boost the chances of discovering these weakly interacting supersymmetric particles for a mass range extending beyond 1 TeV already with a luminosity of 100 fb

^{−1}

. Finally, we compare sneutrino versus neutralino scenarios, and comment on differences with other sneutrino dark matter models.

Note:

29 pages, 5 figures, revised version

Supersymmetry Phenomenology
new physics
supersymmetry
model: left-right
symmetry: left-right
sneutrino: right-handed
sneutrino: dark matter
sneutrino: LSP
neutralino: LSP
LSP: dark matter

References(112)

Figures(8)

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