Conveners
Heavy Flavor Physics: Quarkonium
- There are no conveners in this block
Heavy Flavor Physics: LHC techniques
- Christian Bauer (UC Berkeley)
- Alexey Petrov (Wayne State University)
- Owen Long (University of California Riverside)
Heavy Flavor Physics: EW penguins and Charm
- Owen Long (University of California Riverside)
- Christian Bauer (UC Berkeley)
- Alexey Petrov (Wayne State University)
Heavy Flavor Physics: Bs and tau decays
- Alexey Petrov (Wayne State University)
- Owen Long (University of California Riverside)
- Christian Bauer (UC Berkeley)
Heavy Flavor Physics: B to mumu, SL, and Tevatron review
- Owen Long (University of California Riverside)
- Alexey Petrov (Wayne State University)
- Christian Bauer (UC Berkeley)
Heavy Flavor Physics: Hadronic B decays and LHC review
- Owen Long (University of California Riverside)
- Alexey Petrov (Wayne State University)
- Christian Bauer (UC Berkeley)
Heavy Flavor Physics
- Alexey Petrov (Wayne State University)
- Christian Bauer (UC Berkeley)
- Owen Long (University of California Riverside)
Luigi Li Gioi
(Lab. de Physique Corpusculaire (LPC)-Inst. Nat. Phys. Nucl. et)
09/08/2011, 14:00
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
LHCb results will be presented of studies made of the production
of $c\bar{c}$ and $b\bar{b}$ states in $pp$ collisions at $\sqrt{s} = 7$~TeV.
The range and precision of these measurements will be invaluable in
discriminating between theoretical models. Results and prospects will also be
shown for so-called exotics, such as the X(3872).
Yu Zheng
(Purdue University)
09/08/2011, 14:22
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
The measurement of J/psi and ฮฅ production cross section in proton-proton collisions at โs = 7 TeV is presented using a data sample collected with the CMS detector at the LHC. We also report the measurement of the ratio of X(3872) and psi(2S) signal yields.
Niharika Ranjan
(Purdue University)
09/08/2011, 14:44
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We present a new measurement of the Upsilon(1S), (2S), and (3S) polarization in dimuon events from
p-pbar collisions at 1.96 TeV, using the CDF detector at the Tevatron. The measurement is conducted
exploiting the full 3-dimensional angular distributions over a pT range of 2-40 GeV/c, based on data comprising an integrated luminosity of 6.0 fb-1. We also report the first measurement of...
Gavril Giurgiu
(Rowland Dept. of Phys. and Astron.-Johns Hopkins University (JH)
10/08/2011, 14:00
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
The identification of b-jets is an important ingredient in characterizing top quark events and many new physics scenarios. The b-tagging algorithms developed within the CMS experiment are mainly based on the large lifetime of b-hadrons. The discriminators and variables defined by the various algorithms which characterize b-jets (e.g. track impact parameter, vertex properties) have been studied...
Saptaparna Bhattacharya
(Brown University)
10/08/2011, 14:20
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
Identification of jets originating from b quarks (b-tagging) is a key element of many physics analyses at the LHC. Various algorithms for b-tagging have been developed by the CMS experiment to identify b-tagged jets with a typical efficiency between 40% and 70% while keeping the rate of mis-identified light quark jets between 0.1% and 10%. An important step, in order to be able to use these...
Gordon Watts
(Department of Physics-University of Washington)
10/08/2011, 14:40
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
The ATLAS detector, one of the two general purpose detectors at the LHC, has collected several hundred inverse picobarnes since the start of 2011 running. The large dataset has allowed deeper studies of bottom-quark tagging performance than before possible. Bottom-quark tagging is an important signal/background selection tool used in top analyses, SUSY analyses, Exotics analyses, and Standard...
Ms
Susie Bedikian
(Physics Department-Yale University)
10/08/2011, 15:00
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
I will present strategies used to separate electron signatures from tau lepton signatures with the ATLAS detector, one of the general purpose detectors on the LHC ring at CERN. Taus can decay leptonically, to electrons or muons and neutrinos, or hadronically, to a number of neutral and charged hadrons and neutrinos. These decays happen before the taus reach the inner-most layer of the...
Brad Wray
(University of Texas at Austin)
10/08/2011, 16:30
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We present present measurements of B and charm flavor changing neutral current processes, including inclusive and exclusive b->s gamma and B -> K nu nubar. We also present results of BABAR studies of leptonic decays of charged B and Ds mesons, in particular B -> tau nu and Ds->tau/mu nu.
Prof.
Austin Napier
(Tufts University)
10/08/2011, 16:50
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We present updated measurements of branching fractions, polarization,
and muon forward-backward asymmetry in B-->K mu mu final states using
6.7/fb of data collected by the CDF detector. A search for Lambda_b --> Lambda mu mu decays will also be shown. The results are the most sensitive from a single experiment to date.
Thomas Blake
(Imperial College Sci., Tech. & Med.)
10/08/2011, 17:10
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
Promising ways to search for New Physics effects in radiative
penguin decays are in the angular analysis of $B^0 \to K^{*} \mu^+\mu^-$,
in the measurement of direct CP violation in $B^0 \to K^{*} \gamma$
and a time dependent analysis of $B^0_s \to \phi \gamma$.
All of these studies are being pursued at LHCb. First results
will be shown from the 2010 and early 2011 data, with...
Brian Hamilton
(University Of Maryland)
10/08/2011, 17:30
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We present recent results of studies of semileptonic B and charm
decays from BABAR. In particular, we describe a recent measurement of
the B-> D(*)tau nu branching fraction, and a study of Bs production and semileptonic decays using BABAR data collected above the Upsilon(4S).
We also discuss the determination of |Vub| from exclusive B->pi/rho l nu and and from fully inclusive...
Debabrata Mohapatra
(Virginia Tech)
10/08/2011, 17:50
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We report an improved measurement of D^0-D^0bar mixing
using the time dependence of the Dalitz plot of the
decay mode D^0->K_S^0 pi^+ pi^-. In addition,
we report results of searches for CP violation
in the decays D^0->K_S^0 P^0 where P0
denotes a neutral pseudo-scalar meson which is either
a pi^0, eta or eta^'. The result for D^0->K_S pi^0
is the most sensitive search for CP...
Silvia Borghi
(University of Glasgow)
10/08/2011, 18:10
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
Precision measurements in charm physics offer a window into a unique sector
of potential New Physics interactions.
LHCb is well equipped to take advantage of the enormous production
cross-section of charm mesons in $pp$ collisions at $\sqrt{s}=7$~TeV.
The measurement of the $D^0 -\bar{D^0}$ mixing parameters
and the search for CP-violation in the charm sector are key
physics goals of the...
Alessandro Rossi
(INFN Perugia)
11/08/2011, 10:30
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We present recent BABAR results of searches for rare decays with new physics sensitivity. In particular, we present the results of searches for B -> gammma gamma and the lepton and baryon number violating modes
B->Lambda(c)l and B->K/pi tau l. We also describe recent searches for the charm decays D-> Xl+l-, D0 -> gamma gamma and D0->l+l-.
William Wester
(Fermi National Accelerator Lab. (Fermilab))
11/08/2011, 10:52
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We present new results of CDF measurements of Bc and suppressed Bs decays.
The first measurement of the Bc lifetime in an exclusive fully-reconstructed final state is reported.
An improved measurement of the Bs->DsDs decay is reported along with a measurement of the branching ratio and lifetime for Bs->J/psif0 decays and the first measurement of a CP violating asymmetry in Bs->phiphi decays.
Ms
Sevda Esen
(University of Cincinnati)
11/08/2011, 11:14
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
Using fully reconstructed $B_{s}$ mesons, we measure the branching fractions for the decays of $B_s \to D_s^{(*)+}D_s^{(*)-}$ exclusively. Assuming these decay modes saturate decays to CP-even final states, the branching fraction determines the relative width difference between the $CP$-odd and $CP$-even $B_s$ states. The results are based on a data sample collected with the Belle detector at...
Braden Keim Abbott
(Department of Physics and Astronomy-University of Oklahoma)
11/08/2011, 11:37
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
A measurement of the relative branching fraction of $B^0_s\to J/\psi f_0(980)$, $f_0(980)\to\pi^+\pi^-$ to $B^0_s\to J/\psi \phi$, $\phi\to K^+K^-$ is presented. The decay mode $B^0_s\to J/\psi f_0(980)$ is an interesting mode since it is a CP eigenstate and allows the measurement of the CP-violating phase $\phi_s$. Using approximately 8 fb$^{-1}$ of data recorded with the D0 detector at the...
Prof.
Peter Lichard
(Silesian University in Opava)
11/08/2011, 11:58
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We show that the a_1-rho-pi Lagrangian is a decisive element for obtaining a good phenomenological description of the three-pion decays of the tau lepton. We choose it in a two-component form with a flexible mixing parameter sin(theta). In addition to the dominant a_1-> rho+pi intermediate states, the a_1-> sigma+pi ones are included. When fitting the three-pion mass spectra, three data sets...
Prof.
Gene Golowich
(U Mass)
12/08/2011, 08:00
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We perform a study of the Standard Model (SM) fit to the mixing quantities Delta M_{B_s} and Delta Gamma_{B_s}/Delta M_{B_s} in
order to bound contributions of New Physics (NP) to B_s mixing.
We then use this to explore the branching fraction of B_s -> mu+mu-
in certain models of NP. In most cases, this constrains NP amplitudes
for B_s -> mu+mu- to lie below the SM component.
Kevin Pitts
(University of Illinois)
12/08/2011, 08:32
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We report the latest results of a CDF search for B->mumu decays using 6.9/fb of data.
Doubled statistics with respect to the previous iteration and several analysis improvement provide results that are the most sensitive from a single-experiment to date.
Mr
Jose Lazo-Flores
(University of Nebraska)
12/08/2011, 08:52
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
The rare decays B_(s,d) ->mumu provide an excellent test of the flavor sector of the Standard Model and provide sensitivity to models of new physics with extended Higgs boson sectors. We report on a search for these decays with the CMS experiment using data taken until Summer 2011.
Marc-Olivier Bettler
(Universita e INFN)
12/08/2011, 09:12
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
With the $\sim 1$~fb$^{-1}$ of data expected in the 2011-12 run, LHCb
will achieve the world's best sensitivity to the very rare decay $B_s to \mu^+\mu^-$,
exploring a regime where many models of New Physics predict a signal, and
reaching down towards the Standard Model value for the branching ratio. Results will
be presented from data collected in 2010, and from the early months of the...
Gavril Giurgiu
(Rowland Dept. of Phys. and Astron.-Johns Hopkins University (JH)
12/08/2011, 09:30
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
Brian Edward Lindquist
(SLAC National Accelerator Laboratory)
12/08/2011, 10:30
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We present recent BABAR results on charmless hadronic B decays. In particular, we measure the branching fractions, longitudinal polarization fraction f_L and charge asymmetry in B -> rho(f_0) K* events, and report results of studies of B -> phi phi K and B0->K+pi-pi0. We also present the results of a recent study of the inclusive branching fractions of B-meson decays to charmless final...
Paul Douglas Sail
(Department of Physics and Astronomy-University of Glasgow)
12/08/2011, 10:52
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
Studies of charmless hadronic decays of B mesons
have high sensitivity to possible contributions from New Physics.
Precision measurements involving these decays with charged hadrons in
the final state are being performed at LHCb,
notably those of CP-violating asymmetries. These measurements benefit from
a trigger system which is very efficient for hadronic final states and
excellent...
Prof.
David Norvil Brown
(Department of Physics-University of Louisville)
12/08/2011, 11:14
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We report on recent results of measurements of hadronic B decay branching fractions from BABAR. These results include B0->D(*)0h0 (where h0 is a neutral hadron), B->D(*)D(*)K, B->D(*)ppbar and B->D(*)0Ks0.
Stefania Ricciardi
(Particle Physics-Rutherford Appleton Laboratory-STFC - Science)
12/08/2011, 11:36
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
We present studies from the LHCb experiment of decays of the type $h_b \to h_c X$,
where $h_b$ represents a beauty hadron ($B^\pm$, $B^0$ or $\Lambda_b$)
and $h_c$ a charmed hadron ($D^0$, $D(*)^+$, $D_s$ or $\Lambda_c$).
Such decays are important for the determination of the CKM angle $\gamma$,
a key goal of the LHCb physics programme.
We exploit the data accumulated in 2010, and in...
Marina Artuso
(Department of Physics-Syracuse University)
12/08/2011, 11:58
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
Ivan Heredia De La Cruz
(Centro Invest. Estudios Avanz. IPN (CINVESTAV))
12/08/2011, 16:00
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
The $\Lambda_{b}(udb)$ baryon is observed in the decay $\Lambda_{b}\to J/\psi \Lambda$ using 6.1 fb$^{-1}$ of $p\bar{p}$ collisions collected with the D0 detector at
$\sqrt{s}=1.96$ TeV. The production fraction multiplied by the branching fraction for this decay relative to that for the decay $B^{0}\to J/\psi K^{0}_{s}$ is measured to be $0.345 \pm 0.034 \mbox{ (stat.)} \pm 0.033\mbox{...
gemma Tinti
(Department of Physics and Astronomy-University of Kansas)
12/08/2011, 16:22
Heavy Flavor Physics (bottom, charm, tau)
Parallel contribution
Measurements performed by the CMS experiment of the cross section for inclusive b-quark production in proton-proton collisions at sqrt(s) = 7 TeV are presented. The measurements are based on different methods, such as inclusive jet measurements with secondary vertex tagging or selecting a sample of events containing jets and at least one muon, where the transverse momentum of the muon with...
