BEAUTY 2018

Session

Session 6 - Poster

8 May 2018, 11:15

La Biodola, Isola d'Elba

1. Comparing AdS/QCD and Sum Rules predictions for B->K* nu nubar

Mohammad Ahmady (Mount Allison University)

08/05/2018, 11:15

poster

Using the form factors obtained from holographic AdS/QCD and sum rules, we predict the differential branching ratio and longitudinal polarization fraction for the rare B->K^* nu nubar decay. This is an interesting decay channel as it does not suffer from hadronic uncertainties beyond the form factors.

9. Decoding Leptonic and Semileptonic B Decays

Giovanni Banelli (NIKHEF)

08/05/2018, 11:15

poster

We present a new strategy to explore New Physics contributions to leptonic and semileptonic B decays. With this method we can give constraints to the Wilson coefficients of the usual model-independent low-energy effective Hamiltonian; general considerations on selected models are presented, too. We devote particular attention to the effect of possible CP-violating phases in the short-distance...

3. Measurement of the time-integrated CP asymmetry in D0 -> KS0 KS0 decays with LHCb

Giulia Tuci (PI)

08/05/2018, 11:15

poster

CP violation in charm has not yet been observed, although measurements of time-integrated CP asymmetries in D0->K+K- and D0->pi+pi- decays have reached a remarkable precision, O(0.1%). The D0->KS0 KS0 decay is a promising discovery channel for CP violation in charm. A prediction based on Standard Model gives an upper limit for the CP asymmetry of 1.1% (C.L. 95%). Further enhancements could...

5. Muon identification and performance in the ATLAS experiment

Camilla Di Donato (NA)

08/05/2018, 11:15

poster

Muon reconstruction and identification play a fundamental role in many analyses of central importance in the LHC run-2 Physics programme. The algorithms and the criteria used in ATLAS for the reconstruction and identification of muons with transverse momentum from a few GeV to the TeV scale will be presented. Their performance is measured in data based on the decays of Z and J/ψ to pairs of...

4. The nuclear modification factor of D and B mesons in a field fluctuating quark-gluon plasma at LHC energies

Ashik Ikbal Sheikh (Variable Energy Cyclotron Centre, Department of Atomic Energy)

08/05/2018, 11:15

poster

The main goal of the ongoing relativistic heavy-ion collision experiments is to study the possible hot and dense deconfined state of QCD matter produced in such high energy collisions called Quark-Gluon-Plasma (QGP). In order to study the QGP, we need to probe it. High energy partons are produced in initial partonic subprocesses in the collisions between two heavy nuclei. The Heavy quarks are...

6. Trigger techniques for B-Physics at CMS

Alessio Boletti (PD)

08/05/2018, 11:15

poster

The large instantaneous luminosity delivered by LHC to the CMS experiment in Run 2 is an important opportunity for the study of rare B-hadron decays, like B0(s)->MuMu and B0->K*MuMu. The main drawback of this luminosity increase is that the trigger selections need to be more tight, in order to fit the rate of recorded events in the limits imposed by the available computer resources. This...

8. Utilising $B\to\pi K$ Decays at the High-Precision Frontier

Ruben Jaarsma (Nikhef)

08/05/2018, 11:15

poster

The $B \to \pi K$ decays have received a lot of attention over the last two decades, with puzzling patterns in the previous data. They form a particularly interesting set of decays as they are dominated by QCD penguin topologies. Electroweak penguin topologies also play a significant role, giving a contribution at the level of the tree topologies. We show that a previous discrepancy in the...