Classification of dark pion multiplets as dark matter candidates and collider phenomenology

A bstract New confining sectors can contain a set of pseudo-Goldstone mesons that exhibit a complicated structure in terms of stability and relative masses. Stable ones can act as dark matter candidates, while their interactions with the unstable ones determine their relic abundances. The overall st...

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Bibliographic Details
Published in:	The journal of high energy physics 2020-02, Vol.2020 (2), p.1-42, Article 196
Main Authors:	Beauchesne, Hugues, di Cortona, Giovanni Grilli
Format:	Article
Language:	eng
Subjects:	Beyond Standard Model Classical and Quantum Gravitation Classification Cosmology Cosmology of Theories beyond the SM Dark matter Elementary Particles High energy physics Mesons Phenomenology Physics Physics and Astronomy Pions Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Theoretical Physics Relativity Theory String Theory
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Summary:	A bstract New confining sectors can contain a set of pseudo-Goldstone mesons that exhibit a complicated structure in terms of stability and relative masses. Stable ones can act as dark matter candidates, while their interactions with the unstable ones determine their relic abundances. The overall structure, by specifying which channels are kinematically forbidden or not, affects the cosmology, constraints and collider phenomenology. In this paper, we present a classification of these pseudo-Goldstone meson structures. We find that the structures can be classified into three categories, corresponding to strong, suppressed and essentially non-existent constraints from indirect detection. Limits on decay lengths of the unstable mesons and dark jet properties are presented for several benchmark models.
ISSN:	1029-8479 1029-8479