Cargando…

Search for R-Parity violating effects at $\sqrt{s}$ 161 and 172 GeV

Searches for charginos, neutralinos and sleptons in e+ e collisions at center-of-mass energies of 161 and 172 GeV have been performed on DELPHI data, under the assumptions that R-Parity is not conserved and that the dominant R-Parity violating couplings involve only leptonic or only quark elds. Part...

Descripción completa

Detalles Bibliográficos
Autores principales: Arnoud, Y, Barbier, R, Berat, C, Witek, M, Vassilopoulos, N, Sajot, G, Richard, F, Nicolaidou, R, Pimenta M, Papadopoulou, Th D, Palka, H, Onofre, A, Lola, S, Kluit, P, Katsanevas, S, Gris, P, Fichet, S, Cieslik, K, Boonekamp, M
Lenguaje:eng
Publicado: 1997
Materias:
Acceso en línea:http://cds.cern.ch/record/2152438
_version_ 1780950556050718720
author Arnoud, Y
Barbier, R
Berat, C
Witek, M
Vassilopoulos, N
Sajot, G
Richard, F
Nicolaidou, R
Pimenta M
Papadopoulou, Th D
Palka, H
Onofre, A
Lola, S
Kluit, P
Katsanevas, S
Gris, P
Fichet, S
Cieslik, K
Boonekamp, M
author_facet Arnoud, Y
Barbier, R
Berat, C
Witek, M
Vassilopoulos, N
Sajot, G
Richard, F
Nicolaidou, R
Pimenta M
Papadopoulou, Th D
Palka, H
Onofre, A
Lola, S
Kluit, P
Katsanevas, S
Gris, P
Fichet, S
Cieslik, K
Boonekamp, M
author_sort Arnoud, Y
collection CERN
description Searches for charginos, neutralinos and sleptons in e+ e collisions at center-of-mass energies of 161 and 172 GeV have been performed on DELPHI data, under the assumptions that R-Parity is not conserved and that the dominant R-Parity violating couplings involve only leptonic or only quark elds. Particular emphasis is given in decays involving, the minimally constrained by low-energy studies, third generation couplings including 's and b quarks in the decay products. Squark decays are also studied for the same energies assuming that the dominant R-Parity violating couplings involve a mixture of leptonic and quark elds. In the above studies, it is assumed that the strength of the couplings is such that the lifetimes can be neglected. These searches are used to constraint domains of the parameter space, previously explored under the assumption of R-Parity conservation. Further, the single sparticle production, possible when R-parity is not conserved, is studied. In particular the single squark production and the production of a sneutrino resonance in the s-channel decaying to a single chargino and a charged lepton are studied. Finally, DELPHI analysis of the indirect eects of particles carrying lepton and quark numbers, exchanged in the t-channel, are interpreted in terms of R-parity violating squark exchanges.
id oai-inspirehep.net-1401065
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1997
record_format invenio
spelling oai-inspirehep.net-14010652021-03-18T21:02:15Zhttp://cds.cern.ch/record/2152438engArnoud, YBarbier, RBerat, CWitek, MVassilopoulos, NSajot, GRichard, FNicolaidou, RPimenta MPapadopoulou, Th DPalka, HOnofre, ALola, SKluit, PKatsanevas, SGris, PFichet, SCieslik, KBoonekamp, MSearch for R-Parity violating effects at $\sqrt{s}$ 161 and 172 GeVParticle Physics - ExperimentSearches for charginos, neutralinos and sleptons in e+ e collisions at center-of-mass energies of 161 and 172 GeV have been performed on DELPHI data, under the assumptions that R-Parity is not conserved and that the dominant R-Parity violating couplings involve only leptonic or only quark elds. Particular emphasis is given in decays involving, the minimally constrained by low-energy studies, third generation couplings including 's and b quarks in the decay products. Squark decays are also studied for the same energies assuming that the dominant R-Parity violating couplings involve a mixture of leptonic and quark elds. In the above studies, it is assumed that the strength of the couplings is such that the lifetimes can be neglected. These searches are used to constraint domains of the parameter space, previously explored under the assumption of R-Parity conservation. Further, the single sparticle production, possible when R-parity is not conserved, is studied. In particular the single squark production and the production of a sneutrino resonance in the s-channel decaying to a single chargino and a charged lepton are studied. Finally, DELPHI analysis of the indirect eects of particles carrying lepton and quark numbers, exchanged in the t-channel, are interpreted in terms of R-parity violating squark exchanges.DELPHI-97-119HEP'97 #589oai:inspirehep.net:14010651997
spellingShingle Particle Physics - Experiment
Arnoud, Y
Barbier, R
Berat, C
Witek, M
Vassilopoulos, N
Sajot, G
Richard, F
Nicolaidou, R
Pimenta M
Papadopoulou, Th D
Palka, H
Onofre, A
Lola, S
Kluit, P
Katsanevas, S
Gris, P
Fichet, S
Cieslik, K
Boonekamp, M
Search for R-Parity violating effects at $\sqrt{s}$ 161 and 172 GeV
title Search for R-Parity violating effects at $\sqrt{s}$ 161 and 172 GeV
title_full Search for R-Parity violating effects at $\sqrt{s}$ 161 and 172 GeV
title_fullStr Search for R-Parity violating effects at $\sqrt{s}$ 161 and 172 GeV
title_full_unstemmed Search for R-Parity violating effects at $\sqrt{s}$ 161 and 172 GeV
title_short Search for R-Parity violating effects at $\sqrt{s}$ 161 and 172 GeV
title_sort search for r-parity violating effects at $\sqrt{s}$ 161 and 172 gev
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2152438
work_keys_str_mv AT arnoudy searchforrparityviolatingeffectsatsqrts161and172gev
AT barbierr searchforrparityviolatingeffectsatsqrts161and172gev
AT beratc searchforrparityviolatingeffectsatsqrts161and172gev
AT witekm searchforrparityviolatingeffectsatsqrts161and172gev
AT vassilopoulosn searchforrparityviolatingeffectsatsqrts161and172gev
AT sajotg searchforrparityviolatingeffectsatsqrts161and172gev
AT richardf searchforrparityviolatingeffectsatsqrts161and172gev
AT nicolaidour searchforrparityviolatingeffectsatsqrts161and172gev
AT pimentam searchforrparityviolatingeffectsatsqrts161and172gev
AT papadopoulouthd searchforrparityviolatingeffectsatsqrts161and172gev
AT palkah searchforrparityviolatingeffectsatsqrts161and172gev
AT onofrea searchforrparityviolatingeffectsatsqrts161and172gev
AT lolas searchforrparityviolatingeffectsatsqrts161and172gev
AT kluitp searchforrparityviolatingeffectsatsqrts161and172gev
AT katsanevass searchforrparityviolatingeffectsatsqrts161and172gev
AT grisp searchforrparityviolatingeffectsatsqrts161and172gev
AT fichets searchforrparityviolatingeffectsatsqrts161and172gev
AT cieslikk searchforrparityviolatingeffectsatsqrts161and172gev
AT boonekampm searchforrparityviolatingeffectsatsqrts161and172gev