Dark Matter and the elusive Z′ in a dynamical Inverse Seesaw scenario

Autor: Valentina De Romeri, Enrique Fernandez-Martinez, Julia Gehrlein, Pedro A. N. Machado, Viviana Niro

Publikováno v: Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-21 (2017)

Abstract The Inverse Seesaw naturally explains the smallness of neutrino masses via an approximate B − L symmetry broken only by a correspondingly small parameter. In this work the possible dynamical generation of the Inverse Seesaw neutrino mass m

Externí odkaz: https://doaj.org/article/84eda5b522734584bee8aebdd4ff3ceb

High-energy neutrinos from Galactic sources

Autor: Viviana Niro

Publikováno v: J.Phys.Conf.Ser.
17th International Conference on Topics in Astroparticle and Underground Physics
17th International Conference on Topics in Astroparticle and Underground Physics, Aug 2021, Valencia, Spain. pp.012088, ⟨10.1088/1742-6596/2156/1/012088⟩

Among the galactic sources that can be detected by the KM3NeT detector, we will consider the eHWC J1825-134 source recently detected by the HAWC telescope. Moreover, we consider the source RX J1713.7-3946 and show the prospects of detection in a full

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3e1457ee64309da3d30be018d025869
https://hal.science/hal-03588669

Giant cosmic ray halos around M31 and the Milky Way

Autor: Felix Aharonian, Stefano Gabici, Viviana Niro, Sarah Recchia

Publikováno v: 16th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories
16th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Jul 2021, Online, Italy. pp.2335-2344, ⟨10.1142/9789811269776_0181⟩
Astrophys.J.
PoS
37th International Cosmic Ray Conference
37th International Cosmic Ray Conference, Jul 2021, Berlin, Germany. pp.683, ⟨10.22323/1.395.0683⟩
Astrophys.J., 2021, 914 (2), pp.135. ⟨10.3847/1538-4357/abfda4⟩

Recently, a diffuse emission of 1-100 GeV $\gamma$-rays has been detected from the direction of Andromeda. The emission is centered on the galaxy, and extends for $\sim 100-200$ kpc away from its center. Explaining the extended $\gamma-$ray emission

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbf6a1d1c8702ec87c37dd83d091b9ff
https://hal.science/hal-03972467

Neutrinos from galactic sources

Autor: Luigi Antonio Fusco, Viviana Niro, A. Neronov, Stefano Gabici, Dmitri Semikoz

Publikováno v: PoS
40th International Conference on High Energy Physics
40th International Conference on High Energy Physics, Jul 2020, Prague, Czech Republic. pp.599, ⟨10.22323/1.390.0599⟩

International audience; The HAWC telescope has recently revealed new spectra for gamma-ray sources in the Galactic plane. We will consider, with particular emphasis, the 2HWC J1825-134 source. Amongst the HAWC sources, it is indeed the most luminous

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa219fd793c21662c3e376bc15de23b8
https://hal.science/hal-03210405

Detecting the brightest HAWC sources with IceCube in the upcoming years

Autor: Viviana Niro

Publikováno v: Physical Review D
Physical Review D, American Physical Society, 2021, 103 (10), pp.103020. ⟨10.1103/PhysRevD.103.103020⟩
Phys.Rev.D
Phys.Rev.D, 2021, 103 (10), pp.103020. ⟨10.1103/PhysRevD.103.103020⟩

Among the gamma-ray sources detected by the HAWC observatory, we consider in details in this work the gamma-ray sources eHWC J1907+063 and eHWC J2019+368. These two sources belong to the three most luminous sources detected by HAWC, with emission abo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::337f0531db41b2e6751d7229e3024699