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pro vyhledávání: '"Losacco A"'
Autor:
Losacco, Nicola
We study the rare decays of the $B_c$ meson induced by the flavour changing neutral current $c \to u \gamma$ transition. In the Standard Model they are strongly suppressed by the Glashow-Iliopoulos-Maiani mechanism, therefore they are sensitive to ne
Externí odkaz:
http://arxiv.org/abs/2410.17616
Autor:
Losacco, Nicola
The Belle Collaboration has measured the complete set of angular coefficient functions for the decays ${\bar B} \to D^*\,(D\,\pi)\,\ell\,{\bar \nu}_{\ell}$, where $\ell = e,\,\mu$, in four bins of the variable $w={m_B^2+m_{D^*}^2-q^2 \over 2\, m_B\,
Externí odkaz:
http://arxiv.org/abs/2410.16045
Akademický článek
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We study the constraints on low-energy coefficients of the $\nu$SMEFT generalization of the Standard Model effective theory in the simple case of a $\text{U}(1)^\prime$ enlargement of the Standard Model gauge group. In particular, we analyse the cons
Externí odkaz:
http://arxiv.org/abs/2406.07059
The Belle Collaboration has recently measured the complete set of angular coefficient functions for the exclusive decays $\bar B \to D^* (D \pi) \ell \bar \nu_\ell$, with $\ell=e,\,\mu$, in four bins of the parameter $w=\displaystyle\frac{m_B^2+m_{D^
Externí odkaz:
http://arxiv.org/abs/2401.12304
We present a short overview of the so-called flavour anomalies, discussing their significance and the connections with QCD issues discussed at the HADRON 2023 conference.
Comment: LaTeX, 6 pages + references, 3 figures. Plenary talk at HADRON 20
Comment: LaTeX, 6 pages + references, 3 figures. Plenary talk at HADRON 20
Externí odkaz:
http://arxiv.org/abs/2401.02796
Publikováno v:
Il Foro Italiano, 1996 Jan 01. 119(1), 179/180-183/184.
Externí odkaz:
https://www.jstor.org/stable/23190594
Autor:
Losacco, Nicola
We present recent results in semileptonic and non-leptonic exclusive $B_c$ decays to charmonium states both in $S$-wave, $J/\psi$ and $\eta_c$, and in $P$-wave, $\chi_{cJ}$ and $h_c$. The analysis, based on the heavy quark spin symmetry (HQSS), produ
Externí odkaz:
http://arxiv.org/abs/2311.05429
Autor:
Bushra Sana, Naila Chand, Shabana Naz, Ibrahim A. Alhidary, Rifat Ullah Khan, Shamsuddin Shamsi, Caterina Losacco, Vincenzo Tufarelli
Publikováno v:
Veterinary Quarterly, Vol 44, Iss 1, Pp 1-10 (2024)
The aim of the present study was to assess the effects of different levels of hempseed (HS) on growth performance, immunity and gut health in broiler chickens. A total of 192 Hubbard broiler chicks were divided into four groups and fed HS as follow:
Externí odkaz:
https://doaj.org/article/eb25d405ed8348fab66223ae9ebeb9c9
The Dalitz decays of the positive parity $D_{sJ}^{(*)}$ charmed mesons, $D_{sJ}^{(*)} \to D_s^{(*)} \ell^+ \ell^-$ with $J=0,1,2$ and $\ell=e, \mu$, are important processes to investigate the nature of the $D_{sJ}^{(*)}$ states. We analyze the full s
Externí odkaz:
http://arxiv.org/abs/2308.03453