Abstract
Results are presented from a search for the electroweak production of supersymmetric particles in pp collisions in final states with two τ leptons. The data sample corresponds to an integrated luminosity between 18.1 fb−1 and 19.6 fb−1 depending on the final state of τ lepton decays, at s=8 TeV, collected by the CMS experiment at the LHC. The observed event yields in the signal regions are consistent with the expected standard model backgrounds. The results are interpreted using simplified models describing the pair production and decays of charginos or τ sleptons. For models describing the pair production of the lightest chargino, exclusion regions are obtained in the plane of chargino mass vs. neutralino mass under the following assumptions: the chargino decays into third-generation sleptons, which are taken to be the lightest sleptons, and the sleptons masses lie midway between those of the chargino and the neutralino. Chargino masses below 420 GeV are excluded at a 95% confidence level in the limit of a massless neutralino, and for neutralino masses up to 100 GeV, chargino masses up to 325 GeV are excluded at 95% confidence level. Constraints are also placed on the cross section for pair production of τ sleptons as a function of mass, assuming a massless neutralino.[Figure not available: see fulltext.]
| Original language | English |
|---|---|
| Article number | 18 |
| Journal | Journal of High Energy Physics |
| Volume | 2017 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2017 Apr 1 |
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Keywords
- Hadron-Hadron scattering (experiments)
- Supersymmetry
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Search for electroweak production of charginos in final states with two τ leptons in pp collisions at √s=8 TeV. / The CMS Collaboration.
In: Journal of High Energy Physics, Vol. 2017, No. 4, 18, 01.04.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Search for electroweak production of charginos in final states with two τ leptons in pp collisions at √s=8 TeV
AU - The CMS Collaboration
AU - Khachatryan, V.
AU - Sirunyan, A. M.
AU - Tumasyan, A.
AU - Adam, W.
AU - Asilar, E.
AU - Bergauer, T.
AU - Brandstetter, J.
AU - Brondolin, E.
AU - Dragicevic, M.
AU - Erö, J.
AU - Flechl, M.
AU - Friedl, M.
AU - Frühwirth, R.
AU - Ghete, V. M.
AU - Hartl, C.
AU - Hörmann, N.
AU - Hrubec, J.
AU - Jeitler, M.
AU - König, A.
AU - Krätschmer, I.
AU - Liko, D.
AU - Matsushita, T.
AU - Mikulec, I.
AU - Rabady, D.
AU - Rad, N.
AU - Rahbaran, B.
AU - Rohringer, H.
AU - Schieck, J.
AU - Strauss, J.
AU - Treberer-Treberspurg, W.
AU - Waltenberger, W.
AU - Wulz, C. E.
AU - Mossolov, V.
AU - Shumeiko, N.
AU - Suarez Gonzalez, J.
AU - Alderweireldt, S.
AU - De Wolf, E. A.
AU - Janssen, X.
AU - Lauwers, J.
AU - Van De Klundert, M.
AU - Van Haevermaet, H.
AU - Van Mechelen, P.
AU - Van Remortel, N.
AU - Van Spilbeeck, A.
AU - Abu Zeid, S.
AU - Blekman, F.
AU - D’Hondt, J.
AU - Choi, Suyong
AU - Hong, Byungsik
AU - Park, Sung Keun
PY - 2017/4/1
Y1 - 2017/4/1
N2 - Results are presented from a search for the electroweak production of supersymmetric particles in pp collisions in final states with two τ leptons. The data sample corresponds to an integrated luminosity between 18.1 fb−1 and 19.6 fb−1 depending on the final state of τ lepton decays, at s=8 TeV, collected by the CMS experiment at the LHC. The observed event yields in the signal regions are consistent with the expected standard model backgrounds. The results are interpreted using simplified models describing the pair production and decays of charginos or τ sleptons. For models describing the pair production of the lightest chargino, exclusion regions are obtained in the plane of chargino mass vs. neutralino mass under the following assumptions: the chargino decays into third-generation sleptons, which are taken to be the lightest sleptons, and the sleptons masses lie midway between those of the chargino and the neutralino. Chargino masses below 420 GeV are excluded at a 95% confidence level in the limit of a massless neutralino, and for neutralino masses up to 100 GeV, chargino masses up to 325 GeV are excluded at 95% confidence level. Constraints are also placed on the cross section for pair production of τ sleptons as a function of mass, assuming a massless neutralino.[Figure not available: see fulltext.]
AB - Results are presented from a search for the electroweak production of supersymmetric particles in pp collisions in final states with two τ leptons. The data sample corresponds to an integrated luminosity between 18.1 fb−1 and 19.6 fb−1 depending on the final state of τ lepton decays, at s=8 TeV, collected by the CMS experiment at the LHC. The observed event yields in the signal regions are consistent with the expected standard model backgrounds. The results are interpreted using simplified models describing the pair production and decays of charginos or τ sleptons. For models describing the pair production of the lightest chargino, exclusion regions are obtained in the plane of chargino mass vs. neutralino mass under the following assumptions: the chargino decays into third-generation sleptons, which are taken to be the lightest sleptons, and the sleptons masses lie midway between those of the chargino and the neutralino. Chargino masses below 420 GeV are excluded at a 95% confidence level in the limit of a massless neutralino, and for neutralino masses up to 100 GeV, chargino masses up to 325 GeV are excluded at 95% confidence level. Constraints are also placed on the cross section for pair production of τ sleptons as a function of mass, assuming a massless neutralino.[Figure not available: see fulltext.]
KW - Hadron-Hadron scattering (experiments)
KW - Supersymmetry
UR - http://www.scopus.com/inward/record.url?scp=85031806028&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85031806028&partnerID=8YFLogxK
U2 - 10.1007/JHEP04(2017)018
DO - 10.1007/JHEP04(2017)018
M3 - Article
VL - 2017
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1126-6708
IS - 4
M1 - 18
ER -