Supernova constraints on dark flavored sectors

Autor: Robert Ziegler, Jorge Terol-Calvo, Laura Tolos, Jorge Martin Camalich
Přispěvatelé: Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, Generalitat Valenciana
Rok vydání: 2021
Předmět:
Particle physics
Astrophysics::High Energy Astrophysical Phenomena
Axions
Star (game theory)
FOS: Physical sciences
Astrophysics::Cosmology and Extragalactic Astrophysics
Lambda
7. Clean energy
01 natural sciences
High Energy Physics - Phenomenology (hep-ph)
Particle dark matter
fysikk
0103 physical sciences
Matematikk og Naturvitenskap: 400::Fysikk: 430::Astrofysikk
astronomi: 438 [VDP]
ddc:530
010306 general physics
Axion
High Energy Astrophysical Phenomena (astro-ph.HE)
Hypothetical gauge bosons
Physics
Hypothetical particles
010308 nuclear & particles physics
Branching fraction
High Energy Physics::Phenomenology
Hyperon
Massless particle
High Energy Physics - Phenomenology
Supernova
Tansient and explosive astronomical phenomena
Neutron stars and pulsars
High Energy Physics::Experiment
Neutrino
Astrophysics - High Energy Astrophysical Phenomena
Particle astrophysics
Zdroj: Digital.CSIC. Repositorio Institucional del CSIC
instname
Physical Review D, 103 (12), Art.-Nr.: L121301
Physical Review
Physical Review D
ISSN: 2470-0029
2470-0010
0556-2821
1089-4918
1538-4500
1550-2368
1550-7998
DOI: 10.1103/physrevd.103.l121301
Popis: Proto-neutron stars forming a few seconds after core-collapse supernovae are hot and dense environments where hyperons can be efficiently produced by weak processes. By making use of various state-of-the-art supernova simulations combined with the proper extensions of the equations of state including Λ hyperons, we calculate the cooling of the star induced by the emission of dark particles X0 through the decay Λ→nX0. Comparing this novel energy-loss process to the neutrino cooling of SN 1987A allows us to set a stringent upper limit on the branching fraction, BR(Λ→nX0)≤8×10-9, that we apply to massless dark photons and axions with flavor-violating couplings to quarks. We find that the new supernova bound can be orders of magnitude stronger than other limits in dark-sector models.
J. M. C. acknowledges support from the Spanish MINECO through the “Ramón y Cajal” Program No. RYC-2016-20672 and the Grant No. PGC2018-102016-A-I00. The work of J. T. C. is supported by the Ministerio de Ciencia e Innovación under FPI Contract No. PRE2019-089992 of the SEV-2015-0548 grant and Generalitat Valenciana by the SEJI/2018/033 project. The work of L. T. is supported by Contract No. FPA2016-81114-P financed by: Ministerio de Economía y Competitividad–Agencia Estatal de Investigación-FEDER, UE and Contract No. PID2019-110165GB-I00 financed by: Ministerio de Ciencia e Innovación–Agencia Estatal de Investigación-FEDER, UE, by PHAROS COST Action CA16214, and by the EU STRONG-2020 project under the program H2020-INFRAIA-2018-1, Grant agreement No. 824093. This work is partially supported by project C3b of the DFG-funded Collaborative Research Center TRR257, “Particle Physics Phenomenology after the Higgs Discovery”.
Databáze: OpenAIRE
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