Hunting long-lived gluinos at the Pierre Auger Observatory

Eventual signals of split supersymmetry in cosmic ray physics are analyzed in detail. The study focuses particularly on quasistable colorless R -hadrons originating from confinement of long-lived gluinos (with quarks, antiquarks, and gluons) produced in p p collisions at astrophysical sources. Becau...

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Autores principales: Anchordoqui, Luis Alfredo, Delgado, Antonio, García Canal, Carlos Alberto, Sciutto, Sergio Juan
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2008
Materias:
Física
Particle physics
Cosmic ray
Physics
Gluon
Parton
Nuclear physics
Split supersymmetry
Gluino
Production (computer science)
Pierre auger observatory
Exotic hadron
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125543
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125543
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Particle physics
Cosmic ray
Physics
Gluon
Parton
Nuclear physics
Split supersymmetry
Gluino
Production (computer science)
Pierre auger observatory
Exotic hadron
spellingShingle Física
Particle physics
Cosmic ray
Physics
Gluon
Parton
Nuclear physics
Split supersymmetry
Gluino
Production (computer science)
Pierre auger observatory
Exotic hadron
Anchordoqui, Luis Alfredo
Delgado, Antonio
García Canal, Carlos Alberto
Sciutto, Sergio Juan
Hunting long-lived gluinos at the Pierre Auger Observatory
topic_facet Física
Particle physics
Cosmic ray
Physics
Gluon
Parton
Nuclear physics
Split supersymmetry
Gluino
Production (computer science)
Pierre auger observatory
Exotic hadron
description Eventual signals of split supersymmetry in cosmic ray physics are analyzed in detail. The study focuses particularly on quasistable colorless R -hadrons originating from confinement of long-lived gluinos (with quarks, antiquarks, and gluons) produced in p p collisions at astrophysical sources. Because of parton density requirements, the gluino has a momentum which is considerably smaller than the energy of the primary proton, and so production of heavy (mass ∼ 500 GeV ) R -hadrons requires powerful cosmic ray engines able to accelerate particles up to extreme energies, somewhat above 10 13.6 GeV . Using a realistic Monte Carlo simulation with the AIRES engine, we study the main characteristics of the air showers triggered when one of these exotic hadrons impinges on a stationary nucleon of the Earth’s atmosphere. We show that R -hadron air showers present clear differences with respect to those initiated by standard particles. We use these shower characteristics to construct observables which may be used to distinguish long-lived gluinos at the Pierre Auger Observatory.
format Articulo
Preprint
author Anchordoqui, Luis Alfredo
Delgado, Antonio
García Canal, Carlos Alberto
Sciutto, Sergio Juan
author_facet Anchordoqui, Luis Alfredo
Delgado, Antonio
García Canal, Carlos Alberto
Sciutto, Sergio Juan
author_sort Anchordoqui, Luis Alfredo
title Hunting long-lived gluinos at the Pierre Auger Observatory
title_short Hunting long-lived gluinos at the Pierre Auger Observatory
title_full Hunting long-lived gluinos at the Pierre Auger Observatory
title_fullStr Hunting long-lived gluinos at the Pierre Auger Observatory
title_full_unstemmed Hunting long-lived gluinos at the Pierre Auger Observatory
title_sort hunting long-lived gluinos at the pierre auger observatory
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/125543
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AT garciacanalcarlosalberto huntinglonglivedgluinosatthepierreaugerobservatory
AT sciuttosergiojuan huntinglonglivedgluinosatthepierreaugerobservatory
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