Report/Journal Article

PUBDB-2017-04989

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Supergravity at colliders

Buchmuller, W.DESY* ; Hamaguchi, K. ; Ratz, M. ; Yanagida, T.

2004
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.physletb.2004.03.016

Report No.: DESY-04-010; UT-04-07; hep-ph/0402179

Abstract: We consider supersymmetric theories where the gravitino is the lightest superparticle (LSP). Assuming that the long-lived next-to-lightest superparticle (NSP) is a charged slepton, we investigate two complementary ways to prove the existence of supergravity in nature. The first is based on the NSP lifetime which in supergravity depends only on the Planck scale and the NSP and gravitino masses. With the gravitino mass inferred from kinematics, the measurement of the NSP lifetime will test an unequivocal prediction of supergravity. The second way makes use of the 3-body NSP decay. The angular and energy distributions and the polarizations of the final state photon and lepton carry the information on the spin of the gravitino and on its couplings to matter and radiation.

Keyword(s): supergravity ; sparticle: radiative decay ; sparticle: lifetime ; final state: (lepton photon) ; gravitino: mass ; kinematics ; gravitino: spin ; angular distribution: asymmetry ; energy spectrum ; numerical calculations

Note: Theoretische Physik

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Contributing Institute(s):

1. DESY Retrocat (DESY(-2012))

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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