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Report number | arXiv:1702.02152 ; CERN-TH-2017-032 ; Saclay-t17/014 |
Title | R-axion at colliders |
Related title | R-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 Publication: © 2017-2025 authors |