T. Gershon
A5025822028- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Radiation Detection and Scintillator Technologies
- Computational Physics and Python Applications
- Superconducting Materials and Applications
- Nuclear physics research studies
- Stochastic processes and statistical mechanics
- Advanced Data Storage Technologies
- Cosmology and Gravitation Theories
- International Science and Diplomacy
- Distributed and Parallel Computing Systems
- Advanced NMR Techniques and Applications
- Radiation Therapy and Dosimetry
- Radioactive Decay and Measurement Techniques
- Particle accelerators and beam dynamics
- Theoretical and Computational Physics
- Lanthanide and Transition Metal Complexes
University of Warwick
2016-2025
Peking University
2023
State Key Laboratory of Nuclear Physics and Technology
2023
Rutherford Appleton Laboratory
2023
European Organization for Nuclear Research
2004-2022
University of Bristol
2022
Photek (United Kingdom)
2022
University of Edinburgh
2022
National Institute for Subatomic Physics
2022
University of Oxford
2022
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,062 new measurements 721 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. All search limits are listed in Summary Tables. also give numerous tables, figures, formulae, reviews...
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,873 new measurements 758 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle search limits are listed in Summary Tables. give numerous tables, figures, formulae, reviews...
This article reports world averages of measurements $b$-hadron, $c$-hadron, and $\tau$-lepton properties obtained by the Heavy Flavor Averaging Group using results available through summer 2016. For averaging, common input parameters used in various analyses are adjusted (rescaled) to values, known correlations taken into account. The include branching fractions, lifetimes, neutral meson mixing parameters, \CP~violation semileptonic decays CKM matrix elements.
The summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,717 new measurements 869 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle search limits are listed in Summary Tables. give numerous tables, figures, formulae, reviews topics...
This paper reports world averages of measurements $b$-hadron, $c$-hadron, and $\tau$-lepton properties obtained by the Heavy Flavor Averaging Group using results available through September 2018. In rare cases, significant several months later are also used. For averaging, common input parameters used in various analyses adjusted (rescaled) to values, known correlations taken into account. The include branching fractions, lifetimes, neutral meson mixing parameters, CP violation semileptonic...
The Vertex Locator (VELO) is a silicon microstrip detector that surrounds the proton-proton interaction region in LHCb experiment. performance of during first years its physics operation reviewed. system operated vacuum, uses bi-phase CO2 cooling system, and sensors are moved to 7 mm from LHC beam for data taking. stability these characteristic features described, details material budget given. calibration timing processing algorithms implemented FPGAs described. fully characterised. have...
This article reports world averages for measurements of b-hadron, c-hadron, and tau-lepton properties obtained by the Heavy Flavor Averaging Group (HFAG) using results available at least through end 2009. Some presented use data spring 2010. For averaging, common input parameters used in various analyses are adjusted (rescaled) to values, known correlations taken into account. The include branching fractions, lifetimes, neutral meson mixing parameters, CP violation semileptonic decays.
This paper reports world averages of measurements $b$-hadron, $c$-hadron, and $\tau$-lepton properties obtained by the Heavy Flavour Averaging Group using results available before April 2021. In rare cases, significant several months later are also used. For averaging, common input parameters used in various analyses adjusted (rescaled) to values, known correlations taken into account. The include branching fractions, lifetimes, neutral meson mixing parameters, CP violation semileptonic...
This article reports world averages for measurements of b-hadron and c-hadron properties obtained by the Heavy Flavor Averaging Group (HFAG) using results available at end 2007. For averaging, common input parameters used in various analyses are adjusted (rescaled) to values, known correlations taken into account. The include branching fractions, lifetimes, neutral meson mixing parameters, CP violation semileptonic decays.
The direct CP violation parameter Re(epsilon'/epsilon) has been measured from the decay rates of neutral kaons into two pions using NA48 detector at CERN SPS. 2001 running period was devoted to collecting additional data under varied conditions compared earlier years (1997-99). new yield result: = (13.7 +/- 3.1) times 10^{-4}. Combining this result with that published 1997, 98 and 99 data, an overall value (14.7 2.2) 10^{-4} is obtained experiment.
The present report documents the results of Working Group 2: B, D and K decays, workshop on Flavor in Era LHC, held at CERN from November 2005 through March 2007. With advent we will be able to probe New Physics (NP) up energy scales almost one order magnitude larger than it has been possible with accelerator facilities. While direct detection new particles main avenue establish presence NP indirect searches provide precious complementary information, since most probably not measure full...
We report the first determination of relative strong-phase difference between D^0 -> K^0_S,L K^+ K^- and D^0-bar K^-. In addition, we present updated measurements pi^+ pi^- pi^-. Both exploit quantum coherence a pair mesons produced from psi(3770) decays. The differences measured are important for determining Cabibbo-Kobayashi-Maskawa angle gamma/phi_3 in B^- D^0-tilde decays, where is or meson decaying to K^0_S h^+ h^- (h=pi,K), manner independent model assumed describe decay. Using our...
The potential of a Super Flavor Factory (SFF) for searches new physics is reviewed. While very high luminosity $B$ assumed to be at the core program, its scope extensive charm and $\ensuremath{\tau}$ studies are also emphasized. possibility run $\ensuremath{\Upsilon}(5S)$ discussed; in principle, this could provide clean measurements ${B}_{s}$ decays. strength reach SFF most notably due examining an impressive array observables. angles sides unitarity triangle can determined with...
The Dalitz plot analysis technique has become an increasingly important method in heavy flavour physics. Laura ++ fitter been developed as a flexible tool that can be used for analyses different experimental environments. Explicitly designed three-body decays of heavy-flavoured mesons to spinless final state particles, it is optimised order describe all possible resonant or nonresonant contributions, and accommodate CP violation effects. Program title: Files doi:...
Quantum-correlated $\psi(3770) \to D\bar{D}$ decays collected by the CLEO-c experiment are used to perform a first measurement of $F_+^{4\pi}$, fractional $CP$-even content self-conjugate decay $D \pi^+\pi^-\pi^+\pi^-$, obtaining value $0.737 \pm 0.028$. An important input comes from use K^0_{\rm S}\pi^+\pi^-$ and L}\pi^+\pi^-$ tag signal mode. This same technique is applied channels \to\pi^+\pi^-\pi^0$ K^+K^-\pi^0$, yielding $F_+^{\pi\pi\pi^0} = 1.014 0.045 0.022$ $F_+^{KK\pi^0} 0.734 0.106...
Objectives: To assess book-sharing activities within firstgeneration Hispanic immigrant families, and to the effect of pediatricians giving books their patients.
The decay ${B}^{0}\ensuremath{\rightarrow}D{K}^{*0}$ is well known to provide excellent potential for a precise measurement of the unitarity triangle angle $\ensuremath{\gamma}$ in future experiments. It noted that sensitivity can be significantly enhanced by studying amplitudes relative those flavor-specific ${B}^{0}\ensuremath{\rightarrow}{D}_{2}^{*\ensuremath{-}}{K}^{+}$, which achieved analyzing ${B}^{0}\ensuremath{\rightarrow}D{\ensuremath{\pi}}^{\ensuremath{-}}{K}^{+}$ Dalitz plot.
Quantum-correlated psi(3770)->DDbar decays collected by the CLEO-c experiment are used to perform first measurements of F+, fractional CP-even content self-conjugate D->pi+pi-pi0 and D->K+K-pi0. Values 0.968 +/- 0.017 0.006 0.731 0.058 0.021 obtained for pi+pi-pi0 K+K-pi0, respectively. It is demonstrated how modes this sort can be cleanly included in unitarity triangle angle gamma using B+/- -> D K+/- decays. The high pi+pi-pi0, particular, makes a promising mode improving precision on gamma.
We propose a novel method to measure flavor-oscillations and charge-parity (CP) violation in charm mixing. The approach uses multibody decays, such as $D^0\to K_S^0\pi^+\pi^-$, avoids the need for fit of decay amplitudes while suppressing biases due nonuniform signal-reconstruction efficiencies functions phase space time. Data are partitioned decay-time Dalitz-plot regions (bins). bins symmetric with respect principal bisector chosen ensure nearly constant values strong-interaction phases...
The first measurements of the coherence factors (${R}_{K\ensuremath{\pi}{\ensuremath{\pi}}^{0}}$ and ${R}_{K3\ensuremath{\pi}}$) average strong-phase differences (${\ensuremath{\delta}}_{D}^{K\ensuremath{\pi}{\ensuremath{\pi}}^{0}}$ ${\ensuremath{\delta}}_{D}^{K3\ensuremath{\pi}}$) for ${D}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{0}$...
Recent studies of several multi-body $D^0$ meson decays have revealed that the final states are dominantly $CP$-even. However, small value width difference between two physical eigenstates $D^0$-$\overline{D}{}^0$ system indicates total widths to $CP$-even and $CP$-odd should be same within about a percent. The known contributions from hadronic discussed, it is shown an apparent excess quasi-$CP$-even modes balanced, current uncertainty, by interference effects in quasi-flavour-specific...