Abstract
Considering a third-generation squark as the lightest supersymmetric particle (LSP), we investigate R-parity violating collider signatures with bilinear LH or trilinear LQD operators that may contribute to observed neutrino masses and mixings. Reinterpreting various LHC 7+8TeV results of supersymmetry and leptoquark searches, we find that third-generation squark LSPs decaying to first- or second-generation leptons are generally excluded up to at least about 660 GeV at 95% C.L. One notable feature of sbottom LSP models, as opposed to stop LSP models, is that sbottoms can decay to top quarks leading to a broader invariant mass spectrum and weaker constraints in current collider searches. More dedicated searches with b-taggings or top reconstructions are thus encouraged. Finally, we discuss that the recently observed excesses in the CMS leptoquark search can be accommodated by decays of mostly left-handed sbottom LSPs in the LQD113+131 model.
| Original language | English |
|---|---|
| Article number | 115023 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 90 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2014 Dec 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
Cite this
}
Stop and sbottom LSP with R -parity violation. / Chun, Eung Jin; Jung, Sunghoon; Lee, Hyun Min; Park, Seong Chan.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 90, No. 11, 115023, 01.12.2014.Research output: Contribution to journal › Article
TY - JOUR
T1 - Stop and sbottom LSP with R -parity violation
AU - Chun, Eung Jin
AU - Jung, Sunghoon
AU - Lee, Hyun Min
AU - Park, Seong Chan
PY - 2014/12/1
Y1 - 2014/12/1
N2 - Considering a third-generation squark as the lightest supersymmetric particle (LSP), we investigate R-parity violating collider signatures with bilinear LH or trilinear LQD operators that may contribute to observed neutrino masses and mixings. Reinterpreting various LHC 7+8TeV results of supersymmetry and leptoquark searches, we find that third-generation squark LSPs decaying to first- or second-generation leptons are generally excluded up to at least about 660 GeV at 95% C.L. One notable feature of sbottom LSP models, as opposed to stop LSP models, is that sbottoms can decay to top quarks leading to a broader invariant mass spectrum and weaker constraints in current collider searches. More dedicated searches with b-taggings or top reconstructions are thus encouraged. Finally, we discuss that the recently observed excesses in the CMS leptoquark search can be accommodated by decays of mostly left-handed sbottom LSPs in the LQD113+131 model.
AB - Considering a third-generation squark as the lightest supersymmetric particle (LSP), we investigate R-parity violating collider signatures with bilinear LH or trilinear LQD operators that may contribute to observed neutrino masses and mixings. Reinterpreting various LHC 7+8TeV results of supersymmetry and leptoquark searches, we find that third-generation squark LSPs decaying to first- or second-generation leptons are generally excluded up to at least about 660 GeV at 95% C.L. One notable feature of sbottom LSP models, as opposed to stop LSP models, is that sbottoms can decay to top quarks leading to a broader invariant mass spectrum and weaker constraints in current collider searches. More dedicated searches with b-taggings or top reconstructions are thus encouraged. Finally, we discuss that the recently observed excesses in the CMS leptoquark search can be accommodated by decays of mostly left-handed sbottom LSPs in the LQD113+131 model.
UR - http://www.scopus.com/inward/record.url?scp=84923763474&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84923763474&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.90.115023
DO - 10.1103/PhysRevD.90.115023
M3 - Article
AN - SCOPUS:84923763474
VL - 90
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 11
M1 - 115023
ER -