Conveners
Parallel Session 1
- Joern Putschke (Wayne State University)
Ramona Vogt
(LLNL and UC Davis)
19/05/2015, 14:00
Sarah LaPointe
(INFN Torino)
19/05/2015, 14:20
The ALICE detector is dedicated to the study of the high energy-density QCD matter produced in heavy-ion collisions. Important probes of this matter are heavy quarks (charm and beauty), as they are produced in the early stage of the collision via initial hard scatterings. Thus measurements of their production offer important information on the early stage of the collision and the parton-medium...
Mr
Zhao Feng
(Central China Normal University)
19/05/2015, 14:40
In relativistic heavy-ion collisions, J/ψ can be produced via different mechanisms and the large mass of the charm quark makes it a valuable probe to the thermalization of the medium. The study of J/ψ azimuthal anisotropy can allow for the disentangling of a few interesting dynamic processes, e.g., J/ψ produced from direct pQCD processes, and J/ψ produced from recombination of charm quarks...
Dr
Alexandre Lebedev
(Iowa State University)
19/05/2015, 15:00
The measurement of quarkonia production in relativistic heavy ion
collisions provides a powerful tool for studying the properties of
the hot and dense matter created in these collisions.
To be really useful, however, such measurements must cover a wide
range of quarkonia states and colliding species.
The PHENIX experiment at RHIC has successfully measured J/psi, psi-prime,
chi_c and...
Chiara Bianchin
(Wayne State University)
19/05/2015, 15:20
The ALICE experiment at the LHC studies Pb-Pb, p-Pb, and pp collisions to investigate the properties of the high energy-density state of strongly-interacting matter, produced in Pb-Pb collisions, the so-called quark-gluon plasma (QGP).
Heavy quarks (charm and beauty) are unique probes, since they are produced in the initial hard scattering processes in the earliest phase of the collisions and...
Mr
HAIWANG YU
(Peking University)
19/05/2015, 16:00
The polarized gluon distribution, as described by the polarized parton distribution function $\Delta g(x)$, is an important part of the spin structure of the nucleon; however the current data have very limited constraints on $\Delta g(x)$ for $x < 0.01$. During the 2013 RHIC run, the PHENIX experiment collected 146 pb$^{-1}$ of longitudinally polarized $p+p$ data at $\sqrt{s} = 510$ GeV with...
Zhengkang Zhang
(Michigan Center for Theoretical Physics, University of Michigan)
19/05/2015, 16:20
Masses of the charm and bottom quarks are important inputs to precision calculations of Higgs boson observables, such as its partial widths and branching fractions. They constitute a major source of theory uncertainties that needs to be better understood and reduced in light of future high-precision measurements. Conventionally, Higgs boson observables are calculated in terms of $m_c$ and...
Nejc Košnik
(Department of Physics, University of Ljubljana)
19/05/2015, 16:40
We speculate about the possible interpretations of the recently observed excess in the h to tau mu decay. We derive a robust lower bound on the Higgs boson coupling strength to a tau and a muon, even in presence of the most general new physics affecting other Higgs properties. Then we reevaluate complementary indirect constraints coming from low energy observables as well as from theoretical...
Dr
Zhenbin Wu
(Baylor University)
19/05/2015, 17:00
The supersymmetric partner of the top quark, the stop, is among the best candidates for stabilizing the Higgs mass against large radiative corrections. In the scenario where the dark matter candidate is close in mass to the stop, the decay stop -> charm, LSP is an important search channel. This talk describes the application of a monojet search topology to hunt for this decay with the CMS...
Dr
Vindhyawasini Prasad
(Post-doctoral Fellow)
19/05/2015, 17:20
We search for di-muon decays a light Higgs boson ($A^0$) in the radiative decay of $J/\psi$: $J/\psi \rightarrow \gamma A^0$, $A^0 \rightarrow \mu^+\mu^-$. Here $A^0$ is the hypothetical CP-odd light Higgs boson predicted by many extensions of the Standard Model (SM), including Next-to-Minimal Sypersymmetric Standard Model (NMSSM). This study is based on 225 million $J/\psi$ events collected...
Prof.
Michael Sokoloff
(University of Cincinnati)
19/05/2015, 17:40
The LHCb High Level Trigger uses two stages of software running on an Event Filter Farm (EFF) to select events for offline reconstruction and analysis. In LHC runs 1 & 2 the first stage (Hlt1) processes approximately 1 MHz of events accepted by a hardware trigger. In 2012, the second stage (Hlt2) wrote 5 kHz to permanent storage for later processing. Following the LHC's Long Stop 1, the...
Jane Nachtman
(University of Iowa)
19/05/2015, 18:00
CMS has accumulated large amount of dimuon events at 7 and 8 TeV center-mass-energy. Fruitful results have been produced using these datasets. This talk will cover the observation of two structures in jpsi+phi mass spectrum via exclusive B+-> jpsi phi K+ decays, while the first one confirms a previous observation from CDF experiment, and the second one has been observed for the first time. A...