Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Gangal, Shireen"'
Autor:
Alok, Ashutosh Kumar, Chall, Trambak Jyoti, Chundawat, Neetu Raj Singh, Gangal, Shireen, Lambiase, Gaetano
Coherence, which represents the superposition of orthogonal states, is a fundamental concept in quantum mechanics and can also be precisely defined within quantum resource theory. Thus exploring quantum coherence in neutrino oscillations can not only
Externí odkaz:
http://arxiv.org/abs/2407.16742
Autor:
Gangal, Shireen Niteen
We consider $CP$-violating $Z'$ models to account for the anomalies in $b \to s \ell \ell$ decays. Using the updated constraints from lepton flavor universality (LFU) violating ratios, $b \to s \mu \mu $ $CP$-conserving and $CP$-violating observables
Externí odkaz:
http://arxiv.org/abs/2209.02476
Publikováno v:
Eur. Phys. J. C 82, 967 (2022)
We perform a model-independent global fit to all $b \to s \ell \ell$ data in the light of recent measurements of the lepton flavour universality violating (LFUV) observables $R_{K_S^0}$ and $R_{K^{*+}}$ as well as the updated measurements of observab
Externí odkaz:
http://arxiv.org/abs/2203.13217
We identify a single six-dimensional effective operator {$O_{\ell\ell}$} at the high scale, that can account for the Cabibbo angle anomaly by generating the desired operators at the low scale through renormalization group running, with the right magn
Externí odkaz:
http://arxiv.org/abs/2108.05614
Experimental data have provided intriguing hints for the violation of lepton flavour universality (LFU), including $B\to D^{(*)}\tau\nu/B\to D^{(*)}\ell\nu$, the anomalous magnetic moment of the muon and $b\!\to\! s\ell^+\ell^-$ with a significance o
Externí odkaz:
http://arxiv.org/abs/2106.09610
Autor:
Carvunis, Alexandre, Dettori, Francesco, Gangal, Shireen, Guadagnoli, Diego, Normand, Camille
Publikováno v:
JHEP 12 (2021) 078
We consider the $B^0_s \to \mu^{+} \mu^{-} \gamma$ effective lifetime, and the related CP-phase sensitive quantity $A_{\Delta\Gamma_s}^{\mu \mu \gamma}$, as a way to obtain qualitatively new insights on the current $B$-decay discrepancies. Through a
Externí odkaz:
http://arxiv.org/abs/2102.13390
The tension among measurements of $V_{us}$ from different channels, the so-called Cabibbo Angle Anomaly, can be interpreted as a signal of lepton flavor universality (LFU) violation in the $W$ boson couplings. We investigate this issue in the framewo
Externí odkaz:
http://arxiv.org/abs/2010.12009
Publikováno v:
JHEP05(2020)054
The rapidity-dependent jet veto observables $\mathcal{T}_{Bj}$ and $\mathcal{T}_{Cj}$ provide a tight jet veto at central rapidity, gradually transitioning to a loose veto at forward rapidities. They divide the phase space into exclusive jet bins in
Externí odkaz:
http://arxiv.org/abs/2003.04323
Publikováno v:
Eur. Phys. J. C (2020) 80: 682
The lepton flavor universality violating (LFUV) measurements $R_K$ and $R_{K^*}$ in $B$ meson decays can be accounted for in non-universal $Z'$ models. We constrain the couplings of these $Z'$ models by performing a global fit to correlated $b \to s
Externí odkaz:
http://arxiv.org/abs/1912.02052
We perform a model independent analysis to identify new physics operators which can enhance the branching ratio of $B_s^* \rightarrow \mu^+ \mu^-$ above its Standard Model (SM) prediction. We find that none of the new physics operators which provide
Externí odkaz:
http://arxiv.org/abs/1905.03933