Addazi, Andrea - Αποτελέσματα αναζήτησης

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CERN Document Server	6 εγγραφές βρέθηκαν	Η έρευνα πήρε 0.85 δευτερόλεπτα.

Gravitational echoes of lepton number symmetry breaking with light and ultralight Majorons / Addazi, Andrea (SCU, Chengdu ; Frascati) ; Marcianò, Antonino (Frascati ; Fudan U.) ; Morais, António P. (CERN ; U. Aveiro (main)) ; Pasechnik, Roman (Lund U.) ; Viana, João (Lisbon U., CFTC) ; Yang, Hao (Fudan U., Shanghai ; Shanghai Jiao Tong U.)
We formulate a version of the low-scale Majoron model equipped with an inverse seesaw mechanism featuring lepton-number preserving dimension-6 operators in the scalar potential. Contrary to its dimension-4 counterpart, we find that the model can simultaneously provide light and ultralight Majorons, neutrino masses and their mixing, while featuring strong first-order cosmological phase transitions associated to the spontaneous breaking of the lepton number and the electroweak symmetries in the early Universe. [...]
arXiv:2304.02399; CERN-TH-2023-054.- 2023-09-14 - 29 p. Fulltext: 2304.02399 - PDF; document - PDF; erratum - PDF;

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Chapter 5 Dark Matter and New Physics Beyond the Standard Model with LHAASO / Bi, Xiao-Jun (Beijing, Inst. High Energy Phys.) ; Addazi, Andrea (SCU, Chengdu ; Frascati) ; Belotsky, Konstantin (Moscow Phys. Eng. Inst.) ; Beylin, Vitaly (Southern Federal U.) ; Cirelli, Marco (Paris, LPTHE) ; Esmaili, Arman (Rio de Janeiro, Pont. U. Catol.) ; Fornengo, Nicolao (INFN, Turin) ; Gan, Qing-Yu (SCU, Chengdu) ; Kachekriess, Michael (Norwegian U. Sci. Tech.) ; Khlopov, Maxim (APC, Paris ; Moscow Phys. Eng. Inst. ; Southern Federal U.) et al.
Abstract In order to reveal the nature of dark matter, it is crucial to detect its non-gravitational interactions with the standard model particles. The traditional dark matter searches focused on the so-called weakly interacting massive particles. [...]
2022 - 13 p. - Published in : Chin. Phys. C 46 (2022) 030005 Fulltext: PDF;

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CDF II W-mass anomaly faces first-order electroweak phase transition / Addazi, Andrea (SCU, Chengdu ; Frascati) ; Marciano, Antonino (Frascati ; Fudan U.) ; Morais, António P. (Aveiro U.) ; Pasechnik, Roman (Lund U., Dept. Theor. Phys.) ; Yang, Hao (Fudan U.)
We suggest an appealing strategy to probe a large class of scenarios beyond the Standard Model simultaneously explaining the recent CDF II measurement of the $W$ boson mass and predicting first-order phase transitions (FOPT) testable in future gravitational-wave (GW) experiments. Our analysis deploys measurements from the GW channels and high energy particle colliders. [...]
arXiv:2204.10315; CERN-TH-2023-039.- 2023-03-10 - 6 p. - Published in : Eur. Phys. J. C Fulltext: document - PDF; 2204.10315 - PDF;

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Dark Matter Searches for heavy Dark Matter with LHAASO / Addazi, Andrea (Sichuan U. ; INFN, Rome) ; Belotsky, Konstantin (Moscow Phys. Eng. Inst.) ; Beylin, Vitaly (Southern Federal U.) ; Cirelli, Marco (Paris, LPTHE) ; DiSciascio, Giuseppe (INFN, Rome) ; Esmaili, Arman (Rio de Janeiro, Pont. U. Catol.) ; Fornengo, Nicolao (Turin U. ; INFN, Turin) ; Gan, Qingyu (Sichuan U.) ; Kachekriess, Michael (Norwegian U. Sci. Tech.) ; Khlopov, Maxim (APC, Paris ; Moscow Phys. Eng. Inst. ; Southern Federal U.) et al.
We discuss the implications of next future LHAASO data on searches of Heavy Dark Matter decays..
SISSA, 2021 - 8 p. - Published in : PoS ICRC2021 (2021) 574 Fulltext: PDF;
In : 37th International Cosmic Ray Conference (ICRC 2021), Berlin, Germany, 15 - 22 Jul 2021, pp.574

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Soft gravitational radiation from ultra-relativistic collisions at sub- and sub-sub-leading order / Addazi, Andrea (Fudan U.) ; Bianchi, Massimo (Rome U., Tor Vergata ; INFN, Rome2) ; Veneziano, Gabriele (CERN ; College de France)
Using soft-graviton theorems a well-known zero-frequency limit (ZFL) for the gravitational radiation flux $dE^{GW}/d \omega$ is re-derived and extended to order ${{\cal O}}(\omega)$ and ${{\cal O}}(\omega^2)$ for arbitrary massless multi-particle collisions. The (angle-integrated, unpolarized) ${{\cal O}}(\omega)$ correction to the flux turns out to be absent in the case of two-particle elastic collisions. [...]
arXiv:1901.10986; CERN-TH-2018-269.- 2019-05-09 - 37 p. - Published in : JHEP 05 (2019) 050 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;

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Glimpses of black hole formation/evaporation in highly inelastic, ultra-planckian string collisions / Addazi, Andrea (L'Aquila U. ; Gran Sasso) ; Bianchi, Massimo (Rome U., Tor Vergata ; INFN, Rome2) ; Veneziano, Gabriele (College de France ; CERN ; Rome U.)
We revisit possible glimpses of black-hole formation by looking at ultra-planckian string-string collisions at very high final-state multiplicity. We compare, in particular, previous results using the optical theorem, the resummation of ladder diagrams at arbitrary loop order, and the AGK cutting rules, with the more recent study of $2 \rightarrow N$ scattering at $N \sim s M_P^{-2} \gg 1$. [...]
arXiv:1611.03643; CERN-TH-2016-232.- 2017-02-22 - 39 p. - Published in : JHEP 02 (2017) 111 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Springer Open Access article: PDF;

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