Zobrazeno 1 - 10
of 471
pro vyhledávání: '"Loiseau, B."'
Amplitude analysis of $ B^0 \to K^0_S K^+ K^-$ decays in a quasi-two-body QCD factorization approach
The $B^0 \to K^0_S K^+ K^- $ decay amplitude is derived within a quasi-two-body QCD factorization framework in terms of kaon form factors and $B^0$ to two-kaon-transition functions. The final state kaon-kaon interactions in the $S$, $P$, and $D$ wave
Externí odkaz:
http://arxiv.org/abs/2405.04838
Publikováno v:
Phys. Rev. D 103, 114028 (2021)
The $\textit{BABAR}$ Collaboration data of the $D^0 \to K^0_S K^+ K^-$ process are analyzed within a quasi two-body factorization framework. In earlier studies, assuming $D^0$ transitions to two kaons and the transitions between one kaon and two kaon
Externí odkaz:
http://arxiv.org/abs/2105.03355
Autor:
Loiseau, B., Wycech, S.
Publikováno v:
Phys. Rev. C 102, 034006 (2020)
Anti-protonic hydrogen and helium atoms are analyzed. Level shifts and width are expressed in terms of $\bar{p}$-nucleon sub-threshold scattering lengths and volumes. Experimental data are compared to results obtained from the 2009 version of the Par
Externí odkaz:
http://arxiv.org/abs/2007.01775
Autor:
Loiseau, B., Boito, D., Dedonder, J. -P., El-Bennich, B., Escribano, R., Kamiński, R., Leśniak, L.
A short review of our recent work on amplitude parametrizations of three-body hadronic weak $B$ and $D$ decays is presented. The final states are here composed of three light mesons, namely the various charge $\pi\pi\pi$, $K\pi\pi$ and $KK\bar K$ sta
Externí odkaz:
http://arxiv.org/abs/1902.02138
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Publikováno v:
Phys. Rev. C 97, 065206 (2018)
The measurements of the $J/\psi \rightarrow \gamma p \overline{p}$ decays by the BES Collaboration indicate an enhancement at the $p \overline{p}$ threshold which, however, is not present in the J/$\psi$ decays into $\omega p \overline{p}$ and into $
Externí odkaz:
http://arxiv.org/abs/1802.00763
Autor:
Boito, D., Dedonder, J. -P., El-Bennich, B., Escribano, R., Kaminski, R., Lesniak, L., Loiseau, B.
Publikováno v:
Phys. Rev. D 96, 113003 (2017)
We introduce parametrizations of hadronic three-body $B$ and $D$ weak decay amplitudes that can be readily implemented in experimental analyses and are a sound alternative to the simplistic and widely used sum of Breit-Wigner type amplitudes, also kn
Externí odkaz:
http://arxiv.org/abs/1709.09739
Autor:
Loiseau, B.
Publikováno v:
PoS CHARM2016 (2016) 033, conference: C16-09-05.2 proceedings
This contribution about amplitude analyses in multibody hadronic charm decays deals with some attempts to introduce theoretical constraints. Different effective hadronic formalism approaches are mentioned. A recent work, based on a basic weak interac
Externí odkaz:
http://arxiv.org/abs/1611.05286
Publikováno v:
Nucl. Phys. A 943 (2015) 101-116
A general algorithm for handling the energy dependence of hadron-nucleon amplitudes in the nuclear medium, consistently with their density dependence, has been recently applied to antikaons, eta mesons and pions interacting with nuclei. Here we apply
Externí odkaz:
http://arxiv.org/abs/1506.06965
Indications of the existence of quasi-bound states in the N-Nbar system are presented. Measurements by BES discovered a broad enhancement close to the p-pbar threshold in the S wave, isospin 0 state formed in radiative decays of J/psi. Another enhanc
Externí odkaz:
http://arxiv.org/abs/1503.03319