Pregled bibliografske jedinice broj: 560451
Exotic Seesaw-Motivated Heavy Leptons at the LHC
Exotic Seesaw-Motivated Heavy Leptons at the LHC // 8th Vienna Central European Seminar, PARTICLE PHYSICS AND THE LHC
Beč, Austrija, 2011. (poster, međunarodna recenzija, neobjavljeni rad, znanstveni)
CROSBI ID: 560451 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Exotic Seesaw-Motivated Heavy Leptons at the LHC
Autori
Kumerički, Krešimir ; Picek, Ivica ; Radovčić, Branimir
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni
Skup
8th Vienna Central European Seminar, PARTICLE PHYSICS AND THE LHC
Mjesto i datum
Beč, Austrija, 25.11.2011. - 27.11.2011
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
neutrino mass; seesaw; exotic fermions
Sažetak
In a model with vectorlike lepton SU(2)_L 5-plet and two scalar quadruplets neutrino masses arise from a dimension nine operator. The new seesaw formula m_nu ~ v^6/M^5 and the empirical masses m_nu ~ 10^-1 eV give M < TeV for the new states. We show that the Drell-Yan production and the decays of TeV-scale 5-plet leptons are testable at the LHC. At the present LHC \sqrt{;s}; = 7 TeV, total production cross section for Sigma - \bar{;Sigma}; pairs is 270 fb for M_Sigma = 400 GeV. Besides producing same-sign dilepton events, they could lead to decays Sigma^{;+++}; -> W^+ W^+ l^+ with a specific decay signature.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
119-0982930-1016 - Elementarne čestice, teorija polja i kozmologija (Picek, Ivica, MZOS ) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
