scholarly journals Angular analysis of bottom-flavored hadron production in semileptonic decays of polarized top quarks

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
Bernd A. Kniehl ◽  
S. Mohammad Moosavi Nejad
Keyword(s):  
Semileptonic Decays ◽  
Top Quarks ◽  
Hadron Production ◽  
Angular Analysis

scholarly journals Semileptonic decays of polarised top quarks: V+A admixture and QCD corrections

2004 ◽  
Vol 582 (1-2) ◽  
pp. 32-38 ◽  
Author(s):  
Werner Bernreuther ◽  
Michael Fücker ◽  
Yoshiaki Umeda
Keyword(s):  
Semileptonic Decays ◽  
Top Quarks

Semileptonic decays of top quarks

1988 ◽  
Vol 207 (1) ◽  
pp. 91-96 ◽  
Author(s):  
M. J̇eabek ◽  
J.H. Kühn
Keyword(s):  
Semileptonic Decays ◽  
Top Quarks

RESULTS ON HADRON PRODUCTION AT CESR

1982 ◽  
Vol 43 (C3) ◽  
pp. C3-40-C3-41 ◽  
Author(s):  
F. M. Pipkin
Keyword(s):  
Hadron Production

scholarly journals The time-dependent angular analysis of Bd → KSℓℓ, a new benchmark for new physics

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Sébastien Descotes-Genon ◽  
Martín Novoa-Brunet ◽  
K. Keri Vos
Keyword(s):  
Time Evolution ◽  
Form Factors ◽  
New Physics ◽  
Time Dependent ◽  
Angular Analysis ◽  
Time Dependent Analysis ◽  
Tensor Operators

Abstract We consider the time-dependent analysis of Bd→ KSℓℓ taking into account the time-evolution of the Bd meson and its mixing into $$ {\overline{B}}_d $$ B ¯ d . We discuss the angular conventions required to define the angular observables in a transparent way with respect to CP conjugation. The inclusion of time evolution allows us to identify six new observables, out of which three could be accessed from a time-dependent tagged analysis. We also show that these observables could be obtained by time-integrated measurements in a hadronic environment if flavour tagging is available. We provide simple and precise predictions for these observables in the SM and in NP models with real contributions to SM and chirally flipped operators, which are independent of form factors and charm-loop contributions. As such, these observables provide robust and powerful cross-checks of the New Physics scenarios currently favoured by global fits to b → sℓℓ data. In addition, we discuss the sensitivity of these observables with respect to NP scenarios involving scalar and tensor operators, or CP-violating phases. We illustrate how these new observables can provide a benchmark to discriminate among the various NP scenarios in b → sμμ. We discuss the extension of these results for Bs decays into f0, η or η′.

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