Conveners
Flavor
- Lorenzo Calibbi
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Kun Liu (TDLI / SJTU)02/06/2024, 10:30
Dark SHINE is a newly proposed fixed-target experiment at SHINE (Shanghai high repetition rate XFEL and extreme light facility, being the 1st hard X-ray FEL in China) under construction targeting completion in 2026. Dark SHINE aims to search for the new mediator, Dark Photon, bridging the Dark sector and the ordinary matter. In this work and presentation, we present the idea of this new...
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袁 兴博02/06/2024, 10:55
Recently, the Belle II collaboration announced the first measurement of $\mathcal B(B^+\to K^+\nu\bar\nu)$, which is found to be about $2.7\sigma$ higher than the SM prediction. We decipher the data with two new physics scenarios: the underlying $b\to s \nu\bar\nu$ transition is, besides the SM contribution, further affected by heavy new mediators that are much heavier than the EW scale, or...
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ning chen (Nankai University)02/06/2024, 11:20
We describe the SM quark/lepton masses in an SU(8) theory, where three-generational SM fermions are non-trivially embedded. A set of d=5 operators that break the emergent global symmetries in the chiral fermion sector due to the Planck scale effects are sufficient to generate the light SM quark/lepton masses as well as the CKM mixing pattern, with one single SM Higgs doublet in the spectrum.
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33. $B$ meson anomalies and large $B^{+}\to K^{+}\nu\bar{\nu}$ in non-universal $U(1)^\prime$ modelsCRISTIAN FELIPE SIERRA FONSECA (Nanjing Normal University)02/06/2024, 11:45Oral talk
In view of both the latest LHCb measurement of $R_{K^{(*)}}$ and the new $2.7\sigma$ deviation reported by Belle II on $B^{+}\to K^{+}\nu\bar{\nu}$ decays, we present a fit to the $B$ meson anomalies for various one and two dimensional hypothesis including complex Wilson coefficients. We show in a model-independent way that the generic non-universal $U(1)^{\prime}$ extensions of the SM,...
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