Eli Ben-Haim
(LPNHE, IN2P3-CNRS, Universities of Paris VI)
20/03/2015 08:30
Experiment
Ordinary
I will briefly review recent results from Babar and Belle. For example, I will discuss probes for new physics in radiative penguin decays and the CP asymmetry in B0-B0bar mixing. I will also discuss direct searches for new physics, such as a light Higgs resonance or long lived particles.
Dr
Christoph Langenbruch
(University of Warwick)
20/03/2015 08:55
Experiment
Ordinary
Rare flavour changing neutral current (FCNC) decays are sensitive indirect probes for new effects beyond the Standard Model (SM).
In the SM, these decays are forbidden at tree level and are therefore loop-suppressed.
In SM extensions, new, heavy particles can significantly contribute and
affect both their branching fractions as well as their angular distributions.
The rare decay...
Prof.
Joaquim Matias
(Universitat Autonoma de Barcelona)
20/03/2015 09:20
Theory
Ordinary
Rare B decays constitute one of the cornerstones of the searches for the fundamental theory beyond SM. One of the golden modes in this search is the 4-body angular distribution $B \to K^*(\to K\pi)\mu^+\mu^-$. Sometime ago we proposed a basis of optimized observables called $P_i$ to fully describe this distribution and extract all the information from the Wilson coefficients. In 2013 LHCb...
Dr
David Straub
(Universe Cluster, TUM)
20/03/2015 09:40
Theory
Ordinary
Recent measurements of rare decays based on the $b\to s$ transition, like $B\to K^*\mu^+\mu^-$, $B_s\to \phi\mu^+\mu^-$, and $B^+\to K^+\ell^+\ell^-$, have shown various tensions with Standard Model expectations. This talk will give an interpretation of these measurements, assuming that they are due to new physics rather than underestimated hadronic effects. First, a model-independent global...
Julian Wishahi
(Technische Universität Dortmund)
20/03/2015 10:25
Experiment
Ordinary
The LHCb experiment has a great potential for precise measurements of $CP$ violating phases in the Standard Model, and for searches of new phases. We report on recent LHCb measurements of $CP$ violating phases in neutral $B$ meson decays.
M.
Alexis VALLIER
(LAL)
20/03/2015 10:45
Experiment
Ordinary
The current combination of all available tree-level measurements of the CKM angle gamma at LHCb is reported. It includes results obtained from time independent analyses of B+ -> DK+ and of B0 -> DK∗0 decays; and from a time-dependent analysis of Bs0 -> DsK decays. The results represent the world's best single-experiment determination of gamma. The first observation of the Bs->Ds*K decay and...
Andreas Crivellin
(CERN)
20/03/2015 11:05
Theory
Ordinary
M.
William Sutcliffe
(Imperial College London)
20/03/2015 11:25
Experiment
Ordinary
A measurement of the ratio of branching fractions between $ \Lambda^0_b \rightarrow p\ \mu^- \bar{\nu} $
and $ \Lambda^0_b \rightarrow \Lambda_c^+ \mu^-\bar{\nu} $
decays is performed using data corresponding to 2fb$^{-1}$ of integrated luminosity, collected by the LHCb detector.
This combined with the latest form factor predictions obtained from lattice QCD calculations leads to the first...
amarjit soni
(BNL)
20/03/2015 17:00
Theory
Ordinary
It is suggested that expectations of new physics at scales less than around few TeV, paying attention only to EW precision constraints may have been too optimistic. Perhaps the take home message from the absence of new physics signals in LHC to date is that flavor constraints also need attention. Once flavors are incorporated it becomes very difficult to lower the scale of new physics below...
Dr
Evelina Gersabeck
(Heidelberg University)
20/03/2015 17:25
Experiment
Ordinary
LHCb has collected the world's largest sample of charmed hadrons. This sample is used to search for direct CP violation in the multibody prompt charm decays $D^0 -> \pi^-\pi^+\pi^0$. The search is employing an unbinned model independent method known as the energy test. Using the data collected by LHCb at centre-of-mass energy of 8 TeV, the world's best sensitivity to CP violation in this decay...
Dr
Alberto Sanchez-Hernandez
(CINVESTAV - Mexico City)
20/03/2015 17:45
Experiment
Ordinary
The run II at the Tevatron ended on september 2011 after a successful running
and producing a plethora of results. Since then, the production of extraordinary
results have not ended. Over the last year, 8 results on Heavy Flavor physics
have been published with the complete dataset recorded at CDF and D0.
In this talk we will give a short summary of the recent results on
excited B-mesons,...
Paolo Ronchese
(INFN Padova)
20/03/2015 18:55
Experiment
Ordinary
In b decay tree-level process with W exchange is hardly modified by new physics beyond the standard model; the search for new physics hints can be done by exploiting the sensitivity of some processes to loop diagrams. Such processes include rare FCNC decays, whose branching ratio could be modified by the presence of new degrees of freedom in the loops. Another process where new physics could...
Robert Knegjens
(TUM - IAS)
20/03/2015 19:25
Theory
Ordinary
The precision expected for the rare $K \to \pi \nu\bar\nu$ decays by the NA62 and KOTO experiments in the coming decade will rival their current Standard Model (SM) predictions.
In preparation for this upcoming opportunity, I will review the SM predictions and discuss the sensitivity of these decays to models beyond the SM.
Of particular interest will be how models with constrained quark...
