Conveners
Parallel 1B: Flavour Physics 1
- Session chair: Dr. Mitesh Patel
James Mccarthy
(University of Birmingham (GB))
4/8/14, 1:00 PM
Flavour Physics and Beyond
contributed talk
Decays involving $\eta$ and $\eta\prime$ mesons are particularly interesting to
theorists, as they allow some insight into the relatively poorly
understood topic of $\eta-\eta\prime$ mixing. This subject has been covered
extensively using decays of $B$ and $B_s$ mesons, however, no equivalent processes have been observed in the baryonic sector. This talk outlines
the search for the rare...
Mr
Michael Kiss
(STFC (RAL))
4/8/14, 1:15 PM
Flavour Physics and Beyond
contributed talk
Using the data from the LHCb experiment at CERN , the flavour structure of physics beyond standard model (SM) is probed using one of the rare B-decay channels, namely the $\Lambda_{b} \to pK\mu\mu$ decay. This decay occurs through a flavour changing neutral current process mediated by electroweak penguin and box diagrams in the SM. It is forbidden at the tree level and suppressed at the...
Sam Cunliffe
(Imperial College Sci., Tech. & Med. (GB))
4/8/14, 1:30 PM
Flavour Physics and Beyond
contributed talk
A status report for the analysis of $B^0\rightarrow K^{\star}(892)^{0} (\rightarrow K^+ \pi^-) \mu^+\mu^- $ decays at the LHCb detector at the LHC is presented. This process is the decay of a beauty meson to a vector meson final state and produces an angular distribution in the final state decay products. This angular distribution is highly sensitive to the contributions from Beyond Standard...
Cristiano Alpigiani
4/8/14, 1:45 PM
Flavour Physics and Beyond
contributed talk
Weak decays that are naturally suppressed in the Standard Model,
such as processes with flavour-changing neutral-currents, are perfect
for indirect searches of new physics. These decays allow us
to investigate higher energy ranges with respect to direct searches
thus representing a fundamental complementary tool.
Results on the ATLAS search for the $B_s\rightarrow \mu^+\mu^-$ rare decay...
Simon Robert Magee Wright
(University of Cambridge (GB))
4/8/14, 2:00 PM
Flavour Physics and Beyond
contributed talk
Measurements of the direct $CP$ asymmetry, $A_{CP}$, and the $CP$ difference in the $\mu^+ \mu^-$ forward-backward asymmetry, $\Delta A_{FB}$, are made for the $B^{0} \rightarrow K^{\star{0}}\mu^+\mu^-$ and $B^+ \rightarrow K^+\mu^+\mu^-$ decay modes using $pp$ collision data corresponding to an integrated luminosity of 3$fb^{-1}$ collected by LHCb in 2011 and 2012. The respective control...
Adrian Andrew Pritchard
(University of Liverpool (GB))
4/8/14, 2:15 PM
Flavour Physics and Beyond
contributed talk
The decay of a $B_{s}^{0}$ meson to two oppositely charged $D_{s}$ mesons is one that is postulated to be almost exclusively CP even. Measuring the properties of this decay can therefore give important information about the behaviour of the $B_{s}^{0}$ system. This presentation will focus on the measurement of the inclusive branching fraction of $B_{s}^{0} \rightarrow D_s^{(\ast)+}...
Haofei Luo
(University of Edinburgh (GB))
4/8/14, 2:30 PM
Flavour Physics and Beyond
contributed talk
Using 3fb$^{-1}$ of $pp$ collision data collected at $\sqrt{s} = 7$ and 8 TeV by LHCb experiment in 2011 and 2012, first observation is made of the suppressed flavor changing neutral current (FCNC) decay mode $B_s^0 \to \phi (K^+ K^-) f_0(980) (\pi^+ \pi^-)$. In the $\pi^+ \pi^-$ invariant mass range below 1100 MeV/c$^2$, the branching ratio, using the reference decay $B_s^0 \to \phi \phi$, is...
Mr
Sam Hall
(Imperial College London)
4/8/14, 2:45 PM
Flavour Physics and Beyond
contributed talk
Elements of the Cabibbo-Kobayashi-Maskawa (CKM) matrix are accessible through a
variety of processes.
The Decay $B^+\!'\rightarrow D_s^+\phi$ is an annihilation diagram at tree
level, which is sensitive to $V_{ub}$.
While, contributions from the matrix element $V_{ts}$ are present in the loop
level decays $B^+\!\rightarrow K^+\pi^+\pi^-\mu^+\mu^-$ and ...
Mr
Donal Hill
(University of Oxford, LHCb Experiment)
4/8/14, 3:00 PM
Flavour Physics and Beyond
contributed talk
Determination of the CKM angle $\gamma = \mbox{arg}[-V_{ud} V_{ub}^{\star}/(V_{cd} V_{cb}^{\star})]$ is one of the key goals of the LHCb experiment. The cleanest method to access this weak phase is through measurements of $\gamma$-sensitive observables in $B^{\pm} \rightarrow DK^{\pm}$ and $B^{\pm} \rightarrow D\pi^{\pm}$ decays. The largest interference and asymmetries, and thus the greatest...
