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Fat Brane Phenomena

Gravitons could permeate extra space dimensions inaccessible to all other particles, which would be confined to ``branes''. We point out that these branes could be ``fat'' and have a non-vanishing width in the dimensions reserved for gravitons. In this case the other particles, c...

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Detalles Bibliográficos
Autores principales: De Rujula, A., Donini, A., Gavela, M.B., Rigolin, S.
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(00)00479-2
http://cds.cern.ch/record/425009
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author De Rujula, A.
Donini, A.
Gavela, M.B.
Rigolin, S.
author_facet De Rujula, A.
Donini, A.
Gavela, M.B.
Rigolin, S.
author_sort De Rujula, A.
collection CERN
description Gravitons could permeate extra space dimensions inaccessible to all other particles, which would be confined to ``branes''. We point out that these branes could be ``fat'' and have a non-vanishing width in the dimensions reserved for gravitons. In this case the other particles, confined within a finite width, should have ``branon'' excitations. Chiral fermions behave differently from bosons under dimensional reduction, and they may --or may not-- be more localized than bosons. All these possibilities are in principle testable and distinguishable, they could yield spectacular signatures at colliders, such as the production of the first branon excitation of $\gamma$'s or $Z$'s, decaying into their ground state plus a quasi-continuum of graviton recurrences. We explore these ideas in the realm of a future lepton collider and we individuate a {\it dimensiometer}: an observable that would cleanly diagnose the number of large ``extra'' dimensions.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
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spelling cern-4250092023-03-14T19:58:30Zdoi:10.1016/S0370-2693(00)00479-2http://cds.cern.ch/record/425009engDe Rujula, A.Donini, A.Gavela, M.B.Rigolin, S.Fat Brane PhenomenaParticle Physics - PhenomenologyGravitons could permeate extra space dimensions inaccessible to all other particles, which would be confined to ``branes''. We point out that these branes could be ``fat'' and have a non-vanishing width in the dimensions reserved for gravitons. In this case the other particles, confined within a finite width, should have ``branon'' excitations. Chiral fermions behave differently from bosons under dimensional reduction, and they may --or may not-- be more localized than bosons. All these possibilities are in principle testable and distinguishable, they could yield spectacular signatures at colliders, such as the production of the first branon excitation of $\gamma$'s or $Z$'s, decaying into their ground state plus a quasi-continuum of graviton recurrences. We explore these ideas in the realm of a future lepton collider and we individuate a {\it dimensiometer}: an observable that would cleanly diagnose the number of large ``extra'' dimensions.Gravitons could permeate extra space dimensions inaccessible to all other particles, which would be confined to ``branes''. We point out that these branes could be ``fat'' and have a non-vanishing width in the dimensions reserved for gravitons. In this case the other particles, confined within a finite width, should have ``branon'' excitations. Chiral fermions behave differently from bosons under dimensional reduction, and they may --or may not-- be more localized than bosons. All these possibilities are in principle testable and distinguishable, they could yield spectacular signatures at colliders, such as the production of the first branon excitation of $\gamma$'s or $Z$'s, decaying into their ground state plus a quasi-continuum of graviton recurrences. We explore these ideas in the realm of a future lepton collider and we individuate a {\it dimensiometer}: an observable that would cleanly diagnose the number of large ``extra'' dimensions.Gravitons could permeate extra space dimensions inaccessible to all other particles, which would be confined to “branes”. We point out that these branes could be “fat” and have a non-vanishing width in the dimensions reserved for gravitons. In this case the other particles, confined within a finite width, should have “branon” excitations. Chiral fermions behave differently from bosons under dimensional reduction, and they may – or may not – be more localized than bosons. All these possibilities are in principle testable and distinguishable, they could yield spectacular signatures at colliders, such as the production of the first branon excitation of γ 's or Z 's, decaying into their ground state plus a quasi-continuum of graviton recurrences. We explore these ideas in the realm of a future lepton collider and we individuate a dimensiometer : an observable that would cleanly diagnose the number of large “extra” dimensions.hep-ph/0001335CERN-TH-2000-024FTUAM-00-02IFT-UAM-CSIC-00-03CERN-TH-2000-024FTUAM-2000-02IFT-UAM-CSIC-2000-03oai:cds.cern.ch:4250092000-02-01
spellingShingle Particle Physics - Phenomenology
De Rujula, A.
Donini, A.
Gavela, M.B.
Rigolin, S.
Fat Brane Phenomena
title Fat Brane Phenomena
title_full Fat Brane Phenomena
title_fullStr Fat Brane Phenomena
title_full_unstemmed Fat Brane Phenomena
title_short Fat Brane Phenomena
title_sort fat brane phenomena
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(00)00479-2
http://cds.cern.ch/record/425009
work_keys_str_mv AT derujulaa fatbranephenomena
AT doninia fatbranephenomena
AT gavelamb fatbranephenomena
AT rigolins fatbranephenomena