Search for the direct production of charginos, neutralinos and staus in final states with at least two hadronically decaying taus and missing transverse momentum in pp collisions at root s=8 TeVwith the ATLAS detecto
Popovic, D. S.
Vranješ Milosavljević, Marija
ATLAS Collaboration (ukupan broj autora: 2887)
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Results of a search for the electroweak associated production of charginos and next-to-lightest neutralinos, pairs of charginos or pairs of tau sleptons are presented. These processes are characterised by final states with at least two hadronically decaying tau leptons, missing transverse momentum and low jet activity. The analysis is based on an integrated luminosity of 20.3 fb(-1) of proton-proton collisions at root s = 8 TeV recorded with the ATLAS experiment at the Large Hadron Collider. No significant excess is observed with respect to the predictions from Standard Model processes. Limits are set at 95% confidence level on the masses of the lighter chargino and next-to-lightest neutralino for various hypotheses for the lightest neutralino mass in simplified models. In the scenario of direct production of chargino pairs, with each chargino decaying into the lightest neutralino via an intermediate tau slepton, chargino masses up to 345 GeV are excluded for a massless lightest neutra...lino. For associated production of mass-degenerate charginos and next-to-lightest neutralinos, both decaying into the lightest neutralino via an intermediate tau slepton, masses up to 410 GeV are excluded for a massless lightest neutralino.
Кључне речи:Hadron-Hadron Scattering
Извор:Journal of High Energy Physics, 2014, 10
- ANPCyT, Argentina, YerPhI, Armenia, ARC, Australia, BMWF and FWF, Austria, ANAS, Azerbaijan, SSTC, Belarus, CNPq and FAPESP, Brazil, NSERC, NRC and CFI, Canada, CERN, CONICYT, Chile, CAS, MOST and NSFC, China, COLCIENCIAS, Colombia, MSMT CR, MPO CR and VSC CR, Czech Republic, DNRF, DNSRC and Lundbeck Foundation, Denmark, EPLANET, ERC and NSRF, European Union, IN2P3-CNRS, CEA-DSM/IRFU, France, GNSF, Georgia, BMBF, DFG, HGF, MPG and AvH Foundation, Germany, GSRT and NSRF, Greece, ISF, MINERVA, GIF, I-CORE and Benoziyo Center, Israel, INFN, Italy, MEXT and JSPS, Japan, CNRST, Morocco, FOM and NWO, Netherlands, BRF and RCN, Norway, MNiSW and NCN, Poland, GRICES and FCT, Portugal, MNE/IFA, Romania, MES of Russia and ROSATOM, Russian Federation, JINR, MSTD, Serbia, MSSR, Slovakia, ARRS and MIZS, Slovenia, DST/NRF, South Africa, MINECO, Spain, SRC and Wallenberg Foundation, Sweden, SER, SNSF and Cantons of Bern and Geneva, Switzerland, NSC, Taiwan, TAEK, Turkey, STFC, the Royal Society and Leverhulme Trust, United Kingdom, DOE and NSF, United States of America, ICREA
ISSN: 1029-8479 (print)