Alonso-Álvarez, Gonzalo - Risultato della ricerca

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Dark photon distortions of NO$\nu$A and T2K neutrino oscillations / Alonso-Álvarez, Gonzalo (Toronto U.) ; Cline, James M. (McGill U. ; CERN) ; Laurent, Benoit (McGill U.) ; Rahaman, Ushak (Toronto U. ; Valencia U., IFIC)
Dark photons coupling to $L_\mu-L_\tau$ lepton number difference are a highly studied light dark matter candidate, with potential to be discovered through their impact on terrestrial neutrino oscillation experiments. [...]
CERN-TH-2024-114 ; arXiv:2407.13817. - 5.
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Self-interacting dark matter solves the final parsec problem of supermassive black hole mergers / Alonso-Álvarez, Gonzalo (Toronto U. ; McGill U.) ; Cline, James M. (McGill U. ; CERN) ; Dewar, Caitlyn (McGill U.)
Evidence for a stochastic gravitational wave (GW) background, plausibly originating from the merger of supermassive black holes (SMBHs), is accumulating with observations from pulsar timing arrays. An outstanding question is how inspiraling SMBHs get past the "final parsec" of separation, where they have a tendency to stall before GW emission alone can make the binary coalesce. [...]
arXiv:2401.14450; CERN-TH-2024-016.- 2024-07-09 - 7 p. - Published in : Phys. Rev. Lett. 133 (2024) 021401 Fulltext: 2401.14450 - PDF; Publication - PDF; External links: Astronomy.com article; Physics Synopsis

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The first limit on invisible decays of $B_s$ mesons comes from LEP / Alonso-Álvarez, Gonzalo (McGill U. ; Toronto U.) ; Escudero Abenza, Miguel (CERN)
Motivated by the recent evidence for $B^+\to K^+\bar{\nu} \nu$ decays at Belle II, we point out that fully invisible $B_d$ and $B_s$ meson decays are strongly constrained by LEP. A reinterpretation of an old inclusive ALEPH search for $b$-hadron decays with large missing energy allows us to place the limits $\mathrm{Br}(B_d \rightarrow \mathrm{invisible}) < 1.4\times10^{-4}$ and $\mathrm{Br}(B_s \rightarrow \mathrm{invisible}) < 5.6\times10^{-4}$, both at $90\%$ CL. [...]
arXiv:2310.13043; CERN-TH-2023-193.- 2024-05-31 - 5 p. - Published in : Eur. Phys. J. C 84 (2024) 553 Fulltext: 2310.13043 - PDF; document - PDF;

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New Physics Searches at Kaon and Hyperon Factories / Goudzovski, Evgueni (Birmingham U.) ; Redigolo, Diego (CERN ; INFN, Florence) ; Tobioka, Kohsaku (Florida State U. ; KEK, Tsukuba) ; Zupan, Jure (Cincinnati U.) ; Alonso-Álvarez, Gonzalo (McGill U.) ; Alves, Daniele S.M. (Los Alamos) ; Bansal, Saurabh (Cincinnati U.) ; Bauer, Martin (Durham U., ICC) ; Brod, Joachim (Cincinnati U.) ; Chobanova, Veronika (Santiago de Compostela U., IGFAE) et al.
Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths and the availability of very large datasets. [...]
arXiv:2201.07805; FERMILAB-PUB-22-057-T.- 2023-01-06 - 68 p. - Published in : Rep. Prog. Phys. 86 (2023) 016201 Fulltext: 20769f2ea1acd21399f56329734230a9 - PDF; 2201.07805 - PDF; jt - PDF; External link: Fermilab Accepted Manuscript

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Vedi anche: autori con nomi simili
7	Alonso-Alvarez, Gonzalo
1	Alonso-Álvarez, G.

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