Search for Higgs boson production in trilepton and like-charge electron-muon final states with the D0 detector

0398362 - FZÚ 2014 RIV US eng J - Článek v odborném periodiku
Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kupčo, Alexander - Lokajíček, Miloš … celkem 367 autorů
Search for Higgs boson production in trilepton and like-charge electron-muon final states with the D0 detector.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 88, č. 5 (2013), "052009-1"-"052009-14". ISSN 1550-7998
Grant CEP: GA MŠMT(CZ) LG12006
Institucionální podpora: RVO:68378271
Klíčová slova: anti-p p * interaction * neutral particle * Higgs particle * coupling * electron * muon * dilepton * same sign * final state * D0 * Fermilab
Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
Impakt faktor: 4.864, rok: 2013

We present a search for Higgs bosons in multilepton final states in pp-bar collisions at sqrt(s)=1.96 TeV recorded with the D0 detector at the Fermilab Tevatron Collider, using the full Run II data set with integrated luminosities of up to 9.7 fb-1. The multilepton states considered are two electron plus muon, electron with two muons, muon with two hadronic tau leptons, and like-charge electron-muon pairs. These channels directly probe the HVV (V=W,Z) coupling of the Higgs boson in production and decay. The muon with two hadronic tau lepton channel is also sensitive to H to tau lepton pair decays. Upper limits at the 95% C.L on the rate of standard model Higgs boson production are derived in the mass range 100 <= M_H <= 200 GeV. The expected and observed limits are a factor of 6.3 and 8.4 above the predicted standard model cross section at M_H=125 GeV. We also interpret the data in a fermiophobic Higgs boson model.
Trvalý link: http://hdl.handle.net/11104/0225843