Chargino Production and Decay in Photon-Photon-Collisions
نویسنده
چکیده
We study the production and leptonic decay of charginos in collisions of polarized photon beams including the complete spin correlations. The photons can be generated by Compton backscattering of polarized laser pulses off a polarized electron beam. Since the production process is determined alone by the electromagnetic coupling of the charginos this process allows to study their decay dynamics. The cross section and the forward-backward asymmetry of the decay lepton are very sensitive to the gaugino mass parameter M1 and to the sneutrino mass without any ambiguities.
منابع مشابه
Radiative production of invisible charginos in photon-photon collisions
If in a supersymmetric model, the lightest chargino is nearly degenerate with the lightest neutralino, the former can decay into the latter alongwith a soft pion (or a lepton-neutrino pair). Near degeneracy of the chargino and neutralino masses can cause the other decay products (the pion or the lepton) to be almost invisible. Photon-photon colliders offer a possibility of clean detection of su...
متن کاملStudies on Chargino production and decay at a photon collider
A Monte-Carlo analysis on production and decay of supersym-metric charginos at a future photon-collider is presented. A photon collider offers the possibility of a direct branching-ratio measurement.
متن کاملSearches for electroweak neutralino and chargino production in channels with Higgs, Z, and W bosons in pp collisions at 8 TeV
Searches for supersymmetry (SUSY) are presented based on the electroweak pair production of neutralinos and charginos, leading to decay channels with Higgs, Z, andW bosons and undetected lightest SUSY particles (LSPs). The data sample corresponds to an integrated luminosity of about 19.5 fb−1 of proton-proton collisions at a center-of-mass energy of 8 TeV collected in 2012 with the CMS detector...
متن کاملar X iv : h ep - p h / 01 06 18 3 v 1 1 6 Ju n 20 01 Single chargino production with R - parity lepton number violation in photon - photon collisions
We examine the process γγ → χ̃+τ− at photon-photon collider in the minimal supersymmetric standard model(MSSM) with R-parity violation, where all the oneloop diagrams are considered. We mainly discuss the effects of bilinear breaking terms, and conclude that their contributions may be important compared with trilinear terms. Our results show that the events of this process could be detectable at...
متن کاملProbing the Top-Quark Electric Dipole Moment at a Photon Linear Collider
We probe the top-quark electric dipole moment (EDM) in top-quark pair production via photon-photon fusion at a photon linear collider. We show how linearly-polarized photon beams can be used to extract information on the topquark EDM without the use of complicated angular correlations of top-quark decay products. If the luminosity of the laser back-scattered photon-photon collisions is comparab...
متن کامل