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Report number arXiv:1702.02152 ; CERN-TH-2017-032 ; Saclay-t17/014
Title R-axion at colliders
Related titleR-axion at colliders
Author(s) Bellazzini, Brando (IPhT, Saclay ; Padua U.) ; Mariotti, Alberto (Brussels U., IIHE ; Intl. Solvay Inst., Brussels) ; Redigolo, Diego (Tel Aviv U. ; Weizmann Inst.) ; Sala, Filippo (Paris, LPTHE) ; Serra, Javi (CERN)
Publication 2017-10-05
Imprint 2017-02-07
Number of pages 6
Note 7 pages, 2 figures. v2: typos fixed, appendix added. v3: R-axion as motivation for ALP phenomenological studies made explicit, minor clarifications. Accepted for publication on PRL
In: Phys. Rev. Lett. 119 (2017) 141804
DOI 10.1103/PhysRevLett.119.141804
Subject category hep-th ; Particle Physics - Theory ; hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology
Abstract We study the effective theory of a generic class of hidden sectors where supersymmetry is broken together with an approximate R-symmetry at low energy. The light spectrum contains the gravitino and the pseudo-Nambu-Goldstone boson of the R-symmetry, the R-axion. We derive new model-independent constraints on the R-axion decay constant for R-axion masses ranging from GeV to TeV, which are of relevance for hadron colliders, lepton colliders and B-factories. The current bounds allow for the exciting possibility that the first sign of SUSY will be the R-axion. We point out its most distinctive signals, providing a new experimental handle on the properties of the hidden sector and a solid motivation for searches of axion-like particles.
Copyright/License arXiv nonexclusive-distrib. 1.0
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 Record created 2017-03-10, last modified 2023-02-01


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