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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Particle Dark Matter constraints: the effect of Galactic uncertainties

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Autor(es):
Benito, Maria ; Bernal, Nicolas ; Bozorgnia, Nassim ; Calore, Francesca ; Locco, Fabio
Número total de Autores: 5
Tipo de documento: Artigo Científico
Fonte: Journal of Cosmology and Astroparticle Physics; n. 2 FEB 2017.
Citações Web of Science: 19
Resumo

Collider, space, and Earth based experiments are now able to probe several extensions of the Standard Model of particle physics which provide viable dark matter candidates. Direct and indirect dark matter searches rely on inputs of astrophysical nature, such as the local dark matter density or the shape of the dark matter profile in the target in object. The determination of these quantities is highly affected by astrophysical uncertainties. The latter, especially those for our own Galaxy, are ill-known, and often not fully accounted for when analyzing the phenomenology of particle physics models. In this paper we present a systematic, quantitative estimate of how astrophysical uncertainties on Galactic quantities (such as the local galactocentric distance, circular velocity, or the morphology of the stellar disk and bulge) propagate to the determination of the phenomenology of particle physics models, thus eventually affecting the determination of new physics parameters. We present results in the context of two specific extensions of the Standard Model (the Singlet Scalar and the Inert Doublet) that we adopt as case studies for their simplicity in illustrating the magnitude and impact of such uncertainties on the parameter space of the particle physics model itself. Our findings point toward very relevant effects of current Galactic uncertainties on the determination of particle physics parameters, and urge a systematic estimate of such uncertainties in more complex scenarios, in order to achieve constraints on the determination of new physics that realistically include all known uncertainties. (AU)

Processo FAPESP: 14/11070-2 - Matéria escura na Via Láctea: uma era de precisão
Beneficiário:Fabio Iocco
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
Processo FAPESP: 13/01792-8 - Matéria escura e física das partículas
Beneficiário:Nicolas Bernal Hernandez
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 15/50073-0 - Multichannel particle searches in the precision era of dark matter astronomy
Beneficiário:Fabio Iocco
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 11/11973-4 - ICTP Instituto Sul-Americano para Pesquisa Fundamental: um centro regional para física teórica
Beneficiário:Nathan Jacob Berkovits
Linha de fomento: Auxílio à Pesquisa - Temático