Zobrazeno 1 - 10
of 326
pro vyhledávání: '"Salinas, Gustavo"'
Publikováno v:
JCAP 03 (2024) 014
We show that theories of inflation with multiple, rapidly turning fields can generate large amounts of non-Gaussianity. We consider a general theory with two fields, an arbitrary field-space metric, and a potential that supports sustained, rapidly tu
Externí odkaz:
http://arxiv.org/abs/2303.14156
Autor:
Witte, Samuel J., Baum, Sebastian, Lawson, Matthew, Marsh, M. C. David, Millar, Alexander J., Salinas, Gustavo
Gravitationally bound clumps of dark matter axions in the form of 'miniclusters' or even denser 'axion stars' can generate strong radio signals through axion-photon conversion when encountering highly magnetised neutron star magnetospheres. We system
Externí odkaz:
http://arxiv.org/abs/2212.08079
Publikováno v:
Phys. Rev. Lett. 129 (2022) 26, 261302
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:
http://arxiv.org/abs/2207.13716
Publikováno v:
In Journal of Biological Chemistry September 2024 300(9)
Dark Yang-Mills sectors, which are ubiquitous in the string landscape, may be reheated above their critical temperature and subsequently go through a confining first-order phase transition that produces stochastic gravitational waves in the early uni
Externí odkaz:
http://arxiv.org/abs/2012.04071
Publikováno v:
Phys. Rev. D 100, 106010 (2019)
ALP-photon couplings are modeled in large ensembles of string vacua and random matrix theories. In all cases, the effective coupling increases polynomially in the number of ALPs, of which hundreds or thousands are expected in the string ensembles, ma
Externí odkaz:
http://arxiv.org/abs/1909.05257
Publikováno v:
Phys. Rev. D 99, 086014 (2019)
We demonstrate that asymmetric reheating arises in a large ensemble of string compactifications with many axions and gauged dark sectors. This phenomenon may help avoid numerous cosmological problems that may arise if the sectors were reheated democr
Externí odkaz:
http://arxiv.org/abs/1903.04495
Akademický článek
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Publikováno v:
Phys. Rev. D 98, 043502 (2018)
Dark gauge sectors and axions are well-motivated in string theory. We demonstrate that if a confining gauge sector gives rise to dark glueballs that are a fraction of the dark matter, and the associated axion has a decay constant near the string scal
Externí odkaz:
http://arxiv.org/abs/1805.06011
Publikováno v:
AlephRepositório Institucional da UNESPUniversidade Estadual PaulistaUNESP.
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Externí odkaz:
http://hdl.handle.net/11449/136776
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/14-03-2016/000860219.pdf
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/14-03-2016/000860219.pdf