Conveners
Quark and Lepton Flavor Physics: 1
- Diego Milanes Carreno (Universidad Nacional de Colombia (CO))
Quark and Lepton Flavor Physics: 2
- Diego Milanes Carreno (Universidad Nacional de Colombia (CO))
Quark and Lepton Flavor Physics: 3
- Bradley Lee Roberts (Boston University)
Quark and Lepton Flavor Physics: 4
- Bradley Lee Roberts (Boston University)
Quark and Lepton Flavor Physics: 5
- Bradley Lee Roberts (Boston University)
Quark and Lepton Flavor Physics: 6
- Aida El-Khadra (UIUC)
Quark and Lepton Flavor Physics: 7
- Aida El-Khadra (UIUC)
Quark and Lepton Flavor Physics: 8
- Phillip Urquijo (University of Melbourne (AU))
Quark and Lepton Flavor Physics: 9
- Phillip Urquijo (University of Melbourne (AU))
Ulrich Nierste
(Karlsruhe Institute of Technology (KIT)),
Ulrich Nierste
(Unknown),
Ulrich Nierste
(KIT)
04/08/2016, 09:00
Quark and Lepton Flavor Physics
Oral Presentation
Current experiments measuring CP asymmetries in $D$ meson decays approach a sensitivity which is comparable to the tiny Standard-Model (SM) predictions for these quantities. However, the errors of the SM predictions, which essentially all rely on the approximate SU(3) flavour symmetry, make the search for new physics in $D$-meson CP asymmetries difficult. I present new calculations which...
Adam Davis
(University of Cincinnati (US))
04/08/2016, 09:20
Quark and Lepton Flavor Physics
Oral Presentation
LHCb has collected the world's largest sample of charmed hadrons. This sample is used to measure $D^0 - \bar D^0$ mixing and to search for direct and indirect CP violation. New measurements from several decay modes are presented, as well as prospects for future sensitivities.
Alessandro Pilloni
(Jefferson Lab)
04/08/2016, 09:35
Quark and Lepton Flavor Physics
Oral Presentation
Based on the full data set recorded with the BABAR detector at center-of-mass energies at
and near the Upsilon(4S) resonance, and corresponding to an integrated luminosity of approximately 468 fb-1,
we measure the D0-D0bar mixing parameters using a time-dependent amplitude analysis of the decay D0 -> pi+pi-pi0. The neutral D-meson candidates are selected from D*(2010)+ -> D0 pi+ decays...
Nibedita Dash
(IIT Bhubaneswar)
04/08/2016, 09:50
Quark and Lepton Flavor Physics
Oral Presentation
Enhancement of branching fraction and $CP$ violation in $D$ decays would represent a signal of physics beyond the Standard Model. Using the large data sample accumulated by the Belle experiment at KEKB asymmetric energy $e^+ e^โ$ collider, we present the results for search for rare $D$ decays such as $D^0 \to \gamma\gamma$, along with the search for $CP$ violation in $D^0 \to V \gamma$ ($V$ =...
Ikaros Bigi
(Univ. of Notre Dame)
04/08/2016, 10:05
Quark and Lepton Flavor Physics
Oral Presentation
Our community has focused on two-body final states in B & D decays. The SM produces at least the leading source of CP violation in B transitions; none has been established yet in charm decays. It is crucial to measure three- and four-body final states (FS) with accuracy and to compare with predictions based on refined theoretical tools. Correlations between different final states (FS) based on...
Xiao-Rui Lyu
(UCAS)
04/08/2016, 10:25
Quark and Lepton Flavor Physics
Oral Presentation
The BESIII detector at BEPCII collider accumulated 2.93 and 0.482 fb-1 data at 3.773 and 4.009 GeV. Using the quantum correlation property of D0D0-bar production, we determine the parameters of the strong phase difference and D0D0-bar mixing. Also, we perform Dalitz plot analysis on D+ to Kspi+pi0, measurements of D0 to KsKK, D0(+) to omegapi0(+) and Ds+ to etaprime X, Ds+ to etaprime rho+.
Christopher Kelly
(Brookhaven National Laboratory)
04/08/2016, 10:40
Quark and Lepton Flavor Physics
Oral Presentation
Recent theoretical and computational advances have enabled the precision determination of multi-particle Standard Model amplitudes using lattice QCD. In particular the measure of direct CP-violation in kaon decays, \epsilon', has now been computed with errors that are 40% of the experimental value; this quantity is highly sensitive to BSM sources of CP-violation and may help shed light on the...
Louis Henry
(Paris-LPNHE)
04/08/2016, 11:30
Quark and Lepton Flavor Physics
Oral Presentation
Charmless b-hadron decays in the Standard Model are characterised by tree amplitudes which are comparable in size to loop amplitudes, and potentially by New Physics amplitudes. CP violation measurements using Dalitz plot analyses in multi-body decays enable the various contributions to be disentangled. We present the most recent measurements in this sector, notably results on $B \to K_s hh$...
Kamal Jyoti Nath
(research scholar)
04/08/2016, 11:45
Quark and Lepton Flavor Physics
Oral Presentation
Charmless hadronic B decays constitute a powerful probe to search for new physics beyond the standard model and provide constraints of various CP violation parameters. We report the final measurements from Belle of the branching fraction and CP asymmetry for a variety of charmless decays -- $B^0 \to \pi^0\pi^0$, $B^+ \to K^+ K^- \pi^+$, $B\to \phi \phi K$, and $B^+ \to K_S^0 K_S^0 h^+$...
Maria Vieites Diaz
(Universidade de Santiago de Compostela (ES))
04/08/2016, 12:00
Quark and Lepton Flavor Physics
Oral Presentation
Charmless b-mesons decays receive contributions from penguin diagrams which may exhibit effects of physics beyond the Standard Model.
We present the most recent measurements on such decays performed by LHCb, using the full data sample collected during the first run of the LHC.
In particular, we present the results of the analyses of B->VV decays (where V indicate a vector particle) ...
Iain Bertram
(Lancaster University (GB))
04/08/2016, 12:15
Quark and Lepton Flavor Physics
Oral Presentation
We report on recent measurements using $B$-meson decays in $10.4\ \rm fb^{โ1}$ of proton-antiproton collisions collected by the D0 detector during Run II at the Fermilab Tevatron Collider. We present the first search for exclusive CPT-violating effects in the mixing of $B_s^0$ mesons. We find no evidence for the CPT-violating effects tested and place limits on CPT- and Lorentz-invariance...
Markus Roehrken
(California Institute of Technology)
04/08/2016, 12:30
Quark and Lepton Flavor Physics
Oral Presentation
Knowledge on the angles of the Unitarity Triangle provides stringent tests on the Standard Model of electroweak interactions and enables one to constrain potential effects of the physics beyond. The parameter $\sin (2\beta) = \sin (2\phi_1)$ has been precisely measured by the B factory experiments BaBar and Belle using $b \to c \bar{c} s$ transitions such as the golden mode $B^0 \to J/\psi...
Ina Lorenz
(Indiana University)
04/08/2016, 12:45
Quark and Lepton Flavor Physics
Oral Presentation
The decay $\tau \to 3\pi\nu_\tau$ shows no CP violation in the Standard Model. Therefore it serves as an excellent testing ground for New Physics effects. These effects in rate asymmetries depend on the interference of two helicity amplitudes of the axial vector current decaying to three pions. Motivated by the precise measurements from CLEO, BaBar and Belle, we present an analysis of these...
Kim Maltman
(York University)
04/08/2016, 13:05
Quark and Lepton Flavor Physics
Oral Presentation
We discuss the results from two determinations of Vus using hadronic tau decay data. In the first, we revisit the determination from flavor-breaking finite-energy sum rules and show that the low Vus values obtained from this approach in the past are the result of a systematic problem associated with assumptions, which can now be shown to be incorrect, about higher dimension OPE contributions...
Amarjit Soni
(BNL)
04/08/2016, 17:00
Quark and Lepton Flavor Physics
Oral Presentation
There are several lingering anomalies in flavor physics. There is the long-standing issue of the discrepancy between inclusive and exclusive Vub. Semi-leptonic decays B=> D(*) tau nu when compared with B=> D(*) l nu [for l=mu, e] show deviation from the SM as seen by BABER, Belle and LHCb. And then there is also the long-standing deviation in g-2 of muon from the SM. In this talk
An...
Chris Polly
(Fermilab)
04/08/2016, 17:20
Quark and Lepton Flavor Physics
Oral Presentation
The Muon g-2 Experiment at Fermilab has been designed to determine the anomalous magnetic moment of the muon (a_mu) to a precision of 140 parts per billion (ppb). This four-fold improvement over the previous Brookhaven E821 measurement will provide significant insight into the resilient 3.5 standard deviation discrepancy between measurement and the Standard Model prediction. Determination of...
Luchang Jin
04/08/2016, 17:45
Quark and Lepton Flavor Physics
Oral Presentation
The current measurement of muonic $g-2$ disagrees with the theoretical calculation by about 3 standard deviations. Hadronic vacuum polarization (HVP) and hadronic light by light (HLbL) are the two types of processes that contribute most to the theoretical uncertainty. The current value for HLbL is still given by a model . In this talk, I will describe results from a first-principles lattice...
Dr
Ivan Logashenko
(BINP)
04/08/2016, 18:05
Quark and Lepton Flavor Physics
Oral Presentation
The first round of data taking with CMD-3 detector at VEPP-2000 $e^+e$ collider (BINP, Novosibirsk, Russia) was performed in 2011-2013. The CMD-3 is the general purpose particle detector, equipped by tracking system, two crystal (CSI and BGO) calorimeters, liquid Xe calorimeter, TOF and muon systems. The main goal of experiments at CMD-3 is the measurement of cross-sections and dynamics of...
Christoph Lehner
04/08/2016, 18:20
Quark and Lepton Flavor Physics
Oral Presentation
The leading-order hadronic vacuum polarization contribution dominates the uncertainty of the standard model prediction for the muon anomalous magnetic moment. Significant recent advances in lattice QCD methodology make a precise first-principles computation of this contribution with uncertainties comparable to the Fermilab E989 target precision realistic in the next few years. I will review...
654.
Lattice calculation of the HVP contribution to the anomalous magnetic moment of muon (15' + 5')
bipasha chakraborty
(University of Glasgow)
04/08/2016, 18:40
Quark and Lepton Flavor Physics
Oral Presentation
The anomalous magnetic moment of the muon, defined as the fractional difference of its gyromagnetic ratio from the naive value of 2, has been measured with an impressive accuracy of 0.54 parts per million in experiment (BNL E821), thus providing one of the most stringent tests of the Standard Model. Intriguingly, the experimentally measured anomaly disagrees by around 3 standard deviations...
Diego Guadagnoli
(LAPTh Annecy)
05/08/2016, 09:00
Quark and Lepton Flavor Physics
Oral Presentation
Recent b to s data from the LHCb experiment seem to hint at lepton-flavor non-universality effects beyond the SM. We argue that such effects generally imply also lepton flavor violation at rates much higher than within the SM. In the context of a simple model we provide a number of experimental tests of this possibility, at LHCb itself and elsewhere.
Alexey Petrov
(Wayne State University)
05/08/2016, 09:20
Quark and Lepton Flavor Physics
Oral Presentation
We propose a novel method to study flavor-changing neutral currents in the $e^+ e^โ \to D^{โ0}$ and $e^+ e^โโ\toโB^โ_s$ transitions, tuning the energy of $e^+e^โ$- collisions to the mass of the narrow vector resonance $D^{โ0}$ or $B^โ_s$. We present a thorough study of both short-distance and long-distance contributions to $e^+e^โ \to D^{โ0}$ in the Standard Model and investigate possible...
Bertrand Echenard
(Caltech)
05/08/2016, 09:40
Quark and Lepton Flavor Physics
Oral Presentation
The Mu2e Experiment at Fermilab will search for coherent, neutrinoless conversion of
muons into electrons in the field of a nucleus with a sensitivity improvement of a factor
of 10,000 over previous experiments. Such a charged lepton flavor-violating reaction probes
new physics at a scale inaccessible with direct searches at either present or planned high
energy colliders. The experiment both...
MyeongJae Lee
(Institute for Basic Science (Korea))
05/08/2016, 09:55
Quark and Lepton Flavor Physics
Oral Presentation
Muon to electron conversion in a muonic atom is a process of charged lepton flavor violation (CLFV). It is not allowed in the Standard Model (SM) and known to be one of the best processes to search for new physics beyond the SM. The COMET experiment aims to search for this process at J-PARC with single-event sensitivity of 3x10^{-17}. which is about 10,000 improvement over the current limit....
Luca Galli
(INFN)
05/08/2016, 10:10
Quark and Lepton Flavor Physics
Oral Presentation
The MEG experiment at PSI is searching for the lepton-flavour violating decay mu -> e+gamma with unprecedented sensitivity. MEG set the most stringent experimental bound to date, based on the analysis of 2009, 2010 and 2011 data, to be <5.7 x 10^-13 with an associated sensitivity of about 7.7 x 10^-13. I will present the MEG final result which has an associated sensitivity of about 5.3 x...
Sandro Bravar
(Universite de Geneve (CH))
05/08/2016, 10:25
Quark and Lepton Flavor Physics
Oral Presentation
The Mu3e experiment will search for the lepton flavor violating neutrinoless muon decay
$\mu^+ \rightarrow e^+ e^- e^+$ with a sensitivity down to $10^{-16}$ (90 % C.L.),
i.e. a four order of magnitude improvement over previous measurements,
using the world most intense muon beam at the Paul Scherrer Institute.
This decay is strongly suppressed in the Standard Model,
whilst several Beyond the...
LEWIS TUNSTALL
(University of Bern)
05/08/2016, 10:40
Quark and Lepton Flavor Physics
Oral Presentation
Recent anomalies in the decays of $B$-mesons and the Higgs boson provide hints towards lepton flavor (universality) violating physics beyond the Standard Model. In this talk, we observe that 4-fermion operators which can explain the $B$-physics anomalies have corresponding analogs in the kaon sector, and we analyze their impact on $K\to\pi\ell\ell'$ and $K\to\ell\ell'$ decays $(\ell=\mu,e)$....
Marcella Bona
(Queen Mary University of London (UK))
05/08/2016, 11:30
Quark and Lepton Flavor Physics
Oral Presentation
Flavour physics represents a unique test bench for the Standard Model
(SM). New analyses performed at the LHC experiments are now providing
unprecedented insights into CKM metrology and new evidences for rare
decays. The CKM picture can provide very precise SM predictions through
global analyses.
We present here the results of the latest global SM analysis performed by
the UTfit...
1601.
LHCb results on CP violation in B0_{d/s} mixing and in the interference with decays (10' + 5')
Paul Seyfert
(Universita & INFN, Milano-Bicocca (IT))
05/08/2016, 11:50
Quark and Lepton Flavor Physics
Oral Presentation
Measurements of CP violation in neutral B mesons mixing and in the interference with decays are excellent probes to search for physics beyond the Standard Model.
We present a selection of recent measurements performed by the LHCb experiment using the full Run 1 dataset. Among these:
the measurement of the semileptonic asymmetries, Asls and Asld, the measurements of the mixing-induced...
Slavomira Stefkova
(London-Imperial)
05/08/2016, 12:05
Quark and Lepton Flavor Physics
Oral Presentation
Exclusive semileptonic b-hadron decays are under good theoretical control, which allows precise determinations of the CKM matrix elements, |Vub| and |Vcb|. The large production of ฮb baryons and Bs mesons at the LHC allows LHCb to provide complementary information in this sector with respect to the B-factories. The latest measurements of these decays at LHCb will be presented, using the full...
Cesar Beleno
(University of Goettingen)
05/08/2016, 12:20
Quark and Lepton Flavor Physics
Oral Presentation
Determinations of the magnitude of the CKM element $|V_{ub}|$ by exclusive and inclusive decays are currently at odds by about three standard deviations. In this talk we report new and updated results on charmless semileptonic $B$ decays, based on the large data sample accumulated by the Belle experiment at the KEKB asymmetric-energy $e^+ e^-$ collider at KEK, Japan, which might help to...
Oliver Witzel
(University of Edinburgh)
05/08/2016, 12:35
Quark and Lepton Flavor Physics
Oral Presentation
B-physics is the most promising window to find new physics in the flavor sector. One key
ingredient to these searches are precise theoretical predictions derived from the Standard
Model. Focusing at the nonperturbative QCD contributions, we carry out lattice QCD
simulations in order to calculate B-meson decay constants and semi-leptonic form factors.
Combined with experimental measurements our...
Ronald Poling
(University of Minnesota)
05/08/2016, 12:55
Quark and Lepton Flavor Physics
Oral Presentation
The BESIII Experiment at the Beijing Electron Positron Collider (BEPCII) accumulated the world's largest e+e- collision samples at 3.773 and 4.009 GeV. Based on analyses of D(s)+ to l+v, D0 to K(pi)-e+v, D+ to K^0_Le+v, D+ to K-pi+e+v and D+ to omega e+v, we report the determinations of CKM matrix elements |Vcs(d)|,the D(s)+ decay constants, the form factors of D semi-leptonic decays. These...
Prof.
Jihn E. Kim
(Kyung Hee University)
05/08/2016, 13:10
Quark and Lepton Flavor Physics
Oral Presentation
From a flipped SU(5) grand unification, the electroweak CP violation parameters are derived. We attempt to obtain the CKM, PMNS, and leptogenesis CP parameters in a fully unified gauge interactions.
Bryan FULSOM
(Pacific Northwest National Laboratory)
05/08/2016, 14:30
Quark and Lepton Flavor Physics
Oral Presentation
The Belle II experiment, being constructed at the KEK laboratory in
Japan, is a substantial upgrade of both the Belle detector and the
KEKB accelerator. The Belle II experiment aims to record 50 ab$^{-1}$
of data, a factor of 50 more than the Belle experiment. This large
data set will be accumulated with low backgrounds and high trigger
efficiencies in a clean e+ e- environment and will...
Ruth Van de Water
(Fermilab)
05/08/2016, 14:45
Quark and Lepton Flavor Physics
Oral Presentation
I present the first results from three-flavor lattice QCD for the hadronic matrix elements for neutral $B_{(s)}$-meson mixing in and beyond the Standard Model, including a complete error budget for each matrix element. Because $B_{(s)}$-meson mixing proceeds via flavor-changing neutral currents, it is potentially sensitive to new physics. We compute the complete basis of matrix elements, at...
Andrew Mark Wharton
(Lancaster University (GB))
05/08/2016, 15:05
Quark and Lepton Flavor Physics
Oral Presentation
Abstract: Search for deviations from the standard model is performed in the systems of the neutral B mesons. The Bs system is studied in the decay into J/psi phi. The mixing phase phi_s and the width difference DeltaGamma_s are determined through the simultaneous study of angular distributions in the final state and of the decay time, performed together with flavour tagging at production. The...
Ulrich Nierste
(KIT)
05/08/2016, 15:20
Quark and Lepton Flavor Physics
Oral Presentation
New lattice QCD results from the RBC-UKQCD collaboration have opened the door for a reliable
theory analysis of $\epsilon_K^\prime$, which quantifies direct CP violation
in $K\to \pi\pi$ decays. The Standard-Model (SM) prediction disagrees with
the measurement by 2.9 standard deviations. While in most models of new
physics the data on indirect CP violation (characterized by the
well-understood...
Weonjong Lee
(Seoul National University)
05/08/2016, 15:40
Quark and Lepton Flavor Physics
Oral Presentation
We present most updated results of the indirect CP violation parameter $\epsilon_K$ calculated using lattice QCD inputs such as $B_K$, $\xi_0$, $V_{cb}$, $V_{us}$. We find 3.4 sigma tension between the theoretical prediction and the experimental value. An interpretation of the difference is given and future work will be laid out.
Sneha Sirirshkumar Malde
(University of Oxford (GB))
05/08/2016, 16:00
Quark and Lepton Flavor Physics
Oral Presentation
The CKM angle ฮณ is the least known angle of the unitarity triangle, and the only one easily accessible at tree level. The ultimate goal of degree level precision requires exploitation of all possible channels and techniques. We present here the latest results on the CKM angle ฮณ on a diverse range of decay modes and techniques. Included are the measurement of ฮณ from the $B \to DK$ and related...
Timothy Gershon
(University of Warwick (GB))
05/08/2016, 16:15
Quark and Lepton Flavor Physics
Oral Presentation
The Dalitz plot analysis technique has proven to be a powerful approach to determine the angle $\gamma$ of the CKM Unitarity Triangle. In this talk, we re-examine the potential for a measurement of $\gamma$ from Dalitz plot analysis of $B^\pm \to D K^\pm \pi^0$ decays in the light of recent experimental results.
Suzanne Klaver
(University of Manchester (GB))
05/08/2016, 17:00
Quark and Lepton Flavor Physics
Oral Presentation
Semileptonic decays provide an excellent environment for testing the Standard Model. Violation of lepton universality would be a smoking gun for physics beyond the Standard Model. Moreover, the measurement of the CP asymmetry in mixing of Bs mesons provides an excellent check of the Standard Model. This talk presents the latest results on semileptonic asymmetries, including a_{sl}^s, and on...
Mr
Ran Zhou
(Fermi national accelerator laboratory)
05/08/2016, 17:15
Quark and Lepton Flavor Physics
Oral Presentation
The Cabibbo-Kobayashi-Maskawa (CKM) elements $|V_{cb}|$ and $|V_{ub}|$ are important input parameters in flavor physics; they are necessary for stringent tests of the Standard Model and the search for new physics. The determination of these quantities via exclusive processes requires experimental measurements of semileptonic $B$ or $\Lambda_b$ decays and precise theoretical calculations of the...
Yutaro Sato
(Nagoya University)
05/08/2016, 17:35
Quark and Lepton Flavor Physics
Oral Presentation
Semileptonic decays involving a heavy tau lepton are sensitive to New Physics scenarios with an extended Higgs sector, such as the type II two Higgs doublet model. Semileptonic decays with light leptons can be used to search for right-handed couplings and lepton-universality violation. In this talk we report new and updated results, based on the large data sample accumulated by the Belle...
Florian Urs Bernlochner
(Universitaet Bonn (DE))
05/08/2016, 17:50
Quark and Lepton Flavor Physics
Oral Presentation
Semileptonic decays of B-mesons into excited charmed mesons of the 1P quadruplet are investigated in the context of the Standard Model and the type II two-Higgs doublet model. Predictions for differential branching fractions as a function of the four-momentum transfer squared are presented for the charmed meson either being a D2, D1, D1' or D0-meson, as well as predictions for the...
Alberto Lusiani
(Scuola Normale Superiore and INFN Pisa)
05/08/2016, 18:10
Quark and Lepton Flavor Physics
Oral Presentation
We present a measurement of the decay branching fraction BF(B0 -> D\*- pi+pi-pi+) obtained by using a data sample of about 471 million BBbarย pairs collected by the BABAR detector at the PEP-II e+e- collider. This measurement is about 3 times more precise than the current world average value.ย Thisย decay of the neutral B meson can be used as a normalization channel for the measurement of the...
Prof.
Stefan Meinel
(University of Arizona / RIKEN BNL Research Center)
05/08/2016, 18:25
Quark and Lepton Flavor Physics
Oral Presentation
Measurements of $\Lambda_b$ decays at the Large Hadron Collider provide complementary constraints on important quantities in flavor physics, and can shed new light on "anomalies" observed in mesonic $b$ decays. In this talk, I will report on lattice QCD calculations of the form factors describing semileptonic and rare $\Lambda_b$ decays, and discuss the phenomenological implications. The...
Kenji Inami
(Nagoya university)
05/08/2016, 18:45
Quark and Lepton Flavor Physics
Oral Presentation
In this talk, we present studies of $\tau$ leptons at Belle and the prospects at SuperKEKB/Belle II.
We evaluate the Michel parameters of $\tau$ leptonic decay using Belleโs full data sample. This measurement is important to reveal the Lorentz structure of $\tau$ leptonic decay, which includes not only the $V-A$ interaction but also contributions from scalar, tensor and others that may...
Felicitas Breibeck
(Austrian Academy of Sciences)
06/08/2016, 14:00
Quark and Lepton Flavor Physics
Oral Presentation
We present the results of measurement of electroweak penguin B decays. We show the full angular analysis of $B \to K^* \ell^+ \ell^-$ to extract form factor insensitive variables such as $P'_5$. The branching fraction of inclusive $b \to s \ell^+ \ell^-$ is measured with a sum-of-exclusive-modes approach. We also report searches for leptonic $B$ decays including the lepton-flavor-violating...
Mr
Ran Zhou
(Fermi national accelerator laboratory)
06/08/2016, 14:15
Quark and Lepton Flavor Physics
Oral Presentation
$B$-meson rare decays such as $B \to K(\pi) \ell^+\ell^-$ and
$B \to K(\pi) \nu \bar{\nu}$ occur through flavor changing neutral current.
They are used to probe new physics signals, because the Standard Model
contributions are suppressed. Recent lattice-QCD studies by Fermilab
lattice and MILC collaborations improved the accuracy of the form factors
which parametrize the hadronic matrix...
Dayong Wang
(Peking University (CN))
06/08/2016, 14:35
Quark and Lepton Flavor Physics
Oral Presentation
The Flavour Changing Neutral Current decays B -> K(*) mu+mu- and B->mu+mu- provide high sensitivity to New Physics contributions. Sensitive observables include the branching fraction, muon forward-backward asymmetry, the fraction of K* longitudinal polarization, We report the recent results from CMS on these decays.
Iskander Ibragimov
(Universitaet Siegen (DE))
06/08/2016, 14:50
Quark and Lepton Flavor Physics
Oral Presentation
Processes involving the FCNC transitions in b-hadron decays are suppressed in the SM and are sensitive to new physics.
New results in the search for the rare decays of Bs and Bd into mu+mu- are presented. They are based on the full sample of data collected by ATLAS at 7 and 8 TeV collision energy. The consistency with the SM and with other available measurements is discussed. The properties of...
Timothy Gershon
(University of Warwick (GB))
06/08/2016, 15:05
Quark and Lepton Flavor Physics
Oral Presentation
Flavour changing neutral current processes, such as B -> K(*)l+l- where l = e+, mu+, tau+ are highly
suppressed in the Standard Model (SM). These rare decays occur at lowest order via 1-loop diagrams,
and contributions from virtual particles in the loop allow one to probe large mass scales at relatively low energies.
We present here the most recent results based on the full BABAR data sample,...
Dr
Brian Beckford
(University of Michigan)
06/08/2016, 15:20
Quark and Lepton Flavor Physics
Oral Presentation
The goal of the J-PARC KOTO experiment is to observe the K$^{0}_{L} \rightarrow \pi^{0}\nu\bar{\nu}$ decay and measure its branching ratio. The prediction for the branching ratio from (SM) processes is 2.4 x 10$^{-11}$ with a theoretical uncertainty of 2.5% [1], and the previous experimental limit is 2.6 x 10$^{-8}$, set by the KEK E391a collaboration [2]. A comparison of experimentally...
Matthew Moulson,
Matthew Moulson
(Istituto Nazionale Fisica Nucleare Frascati (IT))
06/08/2016, 15:35
Quark and Lepton Flavor Physics
Oral Presentation
K+->pi+nunu is one of the theoretically cleanest meson decay where to look for indirect effects of new physics complementary to LHC searches. The NA62 experiment at CERN SPS is designed to measure the branching ratio of this decay with 10% precision. NA62 took data in pilot runs in 2014 and 2015 reaching the final designed beam intensity. The quality of data acquired in view of the final...
Rusa Mandal
(The Institute of Mathematical Sciences)
06/08/2016, 16:15
Quark and Lepton Flavor Physics
Oral Presentation
The decay mode $B\to K^* \ell^+\ell^-$ results in the measurement of a large
number of related observables by studying the angular distribution of the decay
products and is regarded as a sensitive probe of physics beyond the standard
model. Recently, LHC$b$ has measured several of these observables using
$3 \text{fb}^{-1}$ data, as a binned function of $q^2$, the dilepton invariant...
Simone Bifani
(University of Birmingham (GB))
06/08/2016, 16:35
Quark and Lepton Flavor Physics
Oral Presentation
Rare leptonic and semileptonic decays of B, D and K mesons provide sensitive indirect probes of effects beyond the Standard Model (SM). In the SM, these decays are forbidden at tree level and are therefore suppressed. In particular, the b โ s ll processes give access to many observables where effects of New Physics can be observed. Recent results on these searches will be presented. Moreover...
Ayan Paul
(INFN, Sezione di Roma)
06/08/2016, 16:50
Quark and Lepton Flavor Physics
Oral Presentation
We analyze several b to s transitions ($B \to K^*l^+l^-$, $B_s \to \phi l^+l^-$, $B \to K^* \gamma$, $B_s \to \phi \gamma$, $B \to X_s \gamma$, $B_s \to \mu^+\mu^-$) and discuss the compatibility of experimental data with the Standard Model, taking into account estimates of state-of-the-art theoretical uncertainties and experimental measurements including updated uncertainties and...
Carlos Sanchez Mayordomo
(Valencia-IFIC),
Carlos Sanchez Mayordomo
(Instituto de Fisica Corpuscular (ES))
06/08/2016, 17:10
Quark and Lepton Flavor Physics
Oral Presentation
Radiative $b$-hadron decays are sensitive probes of New Physics through the study of branching fractions, CP asymmetries and measurements of the polarisation of the photon emitted in the decay. During the LHC Run 1, the LHCb experiment has collected large samples of radiative $b$-hadron decays. We present here the latest LHCb measurements, including new results on the time dependence of $B_s...
Hanjin Kim
(Yonsei)
06/08/2016, 17:25
Quark and Lepton Flavor Physics
Oral Presentation
The $b \to s\gamma$, $d \gamma$ processes are sensitive to new physics since the new heavy particles can enter in the loop and change the branching fractions or kinematic variables. We present results of branching fractions for $B \to X_{s,d} \gamma$ using fully inclusive photon reconstruction with two different tagging techniques. One is the lepton tagging method; the other is the...
Andrea Contu
(CERN)
06/08/2016, 17:40
Quark and Lepton Flavor Physics
Oral Presentation
Following the hints for deviations from the Standard Model in rare B meson decays, searches for rare and forbidden decays of charmed hadrons are of great importance. We present recent results on searches for $D^0 \to hhโ \mu \mu$, $D^0 \to \mu \mu$ and lepton-flavour violating $D^0 \to e\mu$ decays at LHCb.
