Zobrazeno 1 - 10
of 30
pro vyhledávání: '"A. Genon"'
A dispersive study of final-state interactions in $$K\rightarrow \pi \pi \pi $$ K → π π π amplitudes
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 7, Pp 1-29 (2024)
Abstract A system of dispersive representations of the Omnès–Khuri–Treiman–Sawyer–Wali type for the final-state interactions in the amplitudes of the $$K\rightarrow \pi \pi \pi $$ K → π π π weak transitions is constructed, under the ass
Externí odkaz:
https://doaj.org/article/722c2fe6d2524041b9293fd7984c076a
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 8, Pp 1-12 (2023)
Abstract In this letter, we use LHC data from the Drell–Yan processes $$pp\rightarrow \ell _i\ell _j$$ p p → ℓ i ℓ j (with $$i\ne j$$ i ≠ j ) to derive model-independent upper limits on lepton-flavor-violating meson decays. Our analysis is
Externí odkaz:
https://doaj.org/article/6330bd8e5cd940cbbcc889358c1e2376
Autor:
Marcel Algueró, Aritra Biswas, Bernat Capdevila, Sébastien Descotes-Genon, Joaquim Matias, Martin Novoa-Brunet
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 7, Pp 1-25 (2023)
Abstract We discuss the impact of the recent LHCb update on the two lepton-flavour universality ratios $$R_K$$ R K and $$R_{K^*}$$ R K ∗ , and the CMS update of $$B({B_s \rightarrow \mu ^+\mu ^-})$$ B ( B s → μ + μ - ) regarding the possibility
Externí odkaz:
https://doaj.org/article/dcca505059d840f892c8efeef5cf4005
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 6, Pp 1-48 (2023)
Abstract We build a set of new observables using closely related non-leptonic penguin-mediated B d and B s decays: B ¯ d , s → K ∗ 0 K ¯ ∗ 0 , B ¯ d , s → K 0 K ¯ 0 , B ¯ d , s → K 0 K ¯ ∗ 0 $$ {\overline{B}}_{d,s}\to {K}^{\ast 0}{\
Externí odkaz:
https://doaj.org/article/765569a10466408c8292761568563a5d
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 6, Pp 1-46 (2023)
Abstract We derive a set of light-cone sum rules relating the S-wave B → Kπ hadronic form factors to the B-meson light-cone distribution amplitudes (LCDAs), taking into account the complete set of LCDAs up to and including twist four. These result
Externí odkaz:
https://doaj.org/article/d77e4b8ca5c14299811c294d2b407953
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-36 (2023)
Abstract Decays based on the b → sγ transition are expected to yield left-handed photons in the Standard Model, but could be particularly sensitive to New Physics contributions modifying the short-distance Wilson coefficients C $$ \mathcal{C} $$ 7
Externí odkaz:
https://doaj.org/article/c331d2a072ac4797b2aa549612375a4c
Autor:
Yuexin Wang, Sébastien Descotes-Genon, Olivier Deschamps, Lingfeng Li, Shanzhen Chen, Yongfeng Zhu, Manqi Ruan
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-38 (2022)
Abstract The physics potential of measuring B s 0 $$ {B}_{(s)}^0 $$ → π 0 π 0 and B s 0 $$ {B}_{(s)}^0 $$ → ηη decays via four-photon final states at Tera-Z phase of CEPC or FCC-ee is investigated in this paper. We propose an electromagnetic
Externí odkaz:
https://doaj.org/article/136ee9145839424ea16f65e85f984bb0
Autor:
Marcel Algueró, Bernat Capdevila, Sébastien Descotes-Genon, Joaquim Matias, Martín Novoa-Brunet
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 4, Pp 1-16 (2022)
Abstract We present an up-to-date complete model-independent global fit to $$b\rightarrow s\ell \ell $$ b → s ℓ ℓ observables that confirms patterns of New Physics able to explain the data. We include the recent LHCb measurements of $$R_K$$ R K
Externí odkaz:
https://doaj.org/article/bfac3ee281544c4b8c548c3d5ecc7e9a
Autor:
Marcel Algueró, Andreas Crivellin, Sébastien Descotes-Genon, Joaquim Matias, Martín Novoa-Brunet
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-26 (2021)
Abstract In the context of the recently measured non-leptonic decays B d → K ∗ 0 K ¯ ∗ 0 $$ {K}^{\ast 0}{\overline{K}}^{\ast 0} $$ and B s → K ∗ 0 K ¯ ∗ 0 $$ {K}^{\ast 0}{\overline{K}}^{\ast 0} $$ we analyse the anatomy of the L VV obse
Externí odkaz:
https://doaj.org/article/782fb0419e214366a6f637809153b22b
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 2, Pp 1-32 (2021)
Abstract We consider the time-dependent analysis of B d → K S ℓℓ taking into account the time-evolution of the B d meson and its mixing into B ¯ d $$ {\overline{B}}_d $$ . We discuss the angular conventions required to define the angular obser
Externí odkaz:
https://doaj.org/article/a74bb57f8df349bc865c772627b67ca7