Search for anomalous production of multiple leptons in association with W and Z bosons at CDF

0389267 - FZÚ 2013 RIV US eng J - Článek v odborném periodiku
Aaltonen, T. - Gonzalez, B.A. - Amerio, S. - Lysák, Roman … celkem 474 autorů
Search for anomalous production of multiple leptons in association with W and Z bosons at CDF.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 85, č. 9 (2012), "092001-1"-"092001-17". ISSN 1550-7998
Grant CEP: GA MŠMT LC527
Výzkumný záměr: CEZ:AV0Z10100502
Klíčová slova: Z0 associated production * W associated production * TEVATRON * CDF * low momentum
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 4.691, rok: 2012
http://arxiv.org/abs/arXiv:1202.1260

This paper presents a search for anomalous production of multiple low-energy leptons in association with a W or Z boson using events collected at the CDF experiment corresponding to 5.1 fb$^{-1}$ of integrated luminosity. This search is sensitive to a wide range of topologies with low-momentum leptons, including those with the leptons near one another. The observed rates of production of additional electrons and muons are compared with the standard model predictions. No indications of phenomena beyond the standard model are found. A 95% confidence level limit is presented on the production cross section for a benchmark model of supersymmetric hidden-valley Higgs production. Particle identification efficiencies are also provided to enable the calculation of limits on additional models.
Trvalý link: http://hdl.handle.net/11104/0218141