Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Pierluca Carenza"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-25 (2024)
Abstract We propose a new theory of dark matter based on axion physics and cosmological phase transitions. We show that theories in which a gauge coupling increases through a first-order phase transition naturally result in ‘axion relic pockets’:
Externí odkaz:
https://doaj.org/article/490e49a5fe014e7c8da4014d87b101bd
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 2, Pp 1-10 (2023)
Abstract The elusive nature of Dark Matter (DM) remains a mystery far from being solved. A vast effort is dedicated to search for signatures of feeble DM interactions with Standard Model particles. In this work, we explore the signatures of axion DM
Externí odkaz:
https://doaj.org/article/7dfbc3bb4de143febf6cdacdd1e06c81
Autor:
Leonardo Mastrototaro, Pierluca Carenza, Marco Chianese, Damiano F. G. Fiorillo, Gennaro Miele, Alessandro Mirizzi, Daniele Montanino
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 11, Pp 1-16 (2022)
Abstract The detection of very high-energy neutrinos by IceCube experiment supports the existence of a comparable gamma-ray counterpart from the same cosmic accelerators. Under the likely assumption that the sources of these particles are of extragal
Externí odkaz:
https://doaj.org/article/984a1174405c4071ad5fae8d9dfec497
Autor:
Pierluca Carenza, Oscar Straniero, Babette Döbrich, Maurizio Giannotti, Giuseppe Lucente, Alessandro Mirizzi
Publikováno v:
Physics Letters B, Vol 809, Iss , Pp 135709- (2020)
We update the globular cluster bound on massive (ma up to a few 100 keV) axion-like particles (ALP) interacting with photons. The production of such particles in the stellar core is dominated by the Primakoff γ+Ze→Ze+a and by the photon coalescenc
Externí odkaz:
https://doaj.org/article/1d5d76f21d884110b8dbf372ca149e23
Autor:
Pierluca CARENZA
Publikováno v:
Astronomical and Astrophysical Transactions. :313-322
The old and successful idea of using astrophysical systems as laboratories for fundamental physics is becoming extremely popular nowadays. Axions are a remarkable example of Feebly Interacting Particles playing an important role in astrophysical phen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9c6884da940a71e955c59b907605e3b
https://doi.org/10.17184/eac.7533
https://doi.org/10.17184/eac.7533
Publikováno v:
Physical Review
A radiative decaying Big Bang relic with a mass $m_a\simeq 5-25 \,\rm eV$, which we dub "blue axion", can be probed with direct and indirect observations of the cosmic optical background (COB). The strongest bounds on blue-axion cold dark matter come
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f577606baefef3d5ad7f40f59889cb72
http://arxiv.org/abs/2301.06560
http://arxiv.org/abs/2301.06560
Publikováno v:
Physical Review Letters
We revisit the possibility that Dark Matter is composed of stable scalar glueballs of a confining dark ${\rm SU}(3)$ gauge theory coupled only to gravity. The relic abundance of dark glueballs is studied for the first time in a thermal effective theo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9933f92cc328012ba354b42e594ec47
https://pubmed.ncbi.nlm.nih.gov/36608176
https://pubmed.ncbi.nlm.nih.gov/36608176
Autor:
Giuseppe Lucente, Leonardo Mastrototaro, Pierluca Carenza, Luca Di Luzio, Maurizio Giannotti, Alessandro Mirizzi
Publikováno v:
Physical Review
We consider axions coupled to nucleons and photons only through the nucleon electric-dipole moment (EDM) portal. This coupling is a model-independent feature of QCD axions, which solve the strong CP problem, and might arise as well in more general ax
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6aeb164b889955738cbbb1e19f3ebddc
https://doi.org/10.1103/physrevd.105.123020
https://doi.org/10.1103/physrevd.105.123020
Autor:
Mengjiao Xiao, Pierluca Carenza, Maurizio Giannotti, Alessandro Mirizzi, Kerstin M. Perez, Oscar Straniero, Brian W. Grefenstette
Axion-like particles (ALPs) can be produced by thermal processes in a stellar interior, escape from the star and, if sufficiently light, be converted into photons in the external Galactic magnetic field. Such a process could produce a detectable hard
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5271cdbbe7da49673f3d0f3e757033df
http://arxiv.org/abs/2204.03121
http://arxiv.org/abs/2204.03121
Publikováno v:
Physical Review Letters
Heavy axion-like particles (ALPs), with masses up to a few 100 keV and coupled with photons can be efficiently produced in stellar plasmas, contributing to a significant energy-loss. This argument has been applied to helium burning stars in Globular
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b1d344e4b9a1cfcd29c1e2b332941f9
http://arxiv.org/abs/2203.01336
http://arxiv.org/abs/2203.01336