C. L. Davis
A5039811784- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Microstructure and Mechanical Properties of Steels
- Computational Physics and Python Applications
- Magnetic Properties and Applications
- Superconducting Materials and Applications
- Non-Destructive Testing Techniques
- Metal Alloys Wear and Properties
- Black Holes and Theoretical Physics
- Nuclear physics research studies
- Cosmology and Gravitation Theories
- Radiation Detection and Scintillator Technologies
- High Temperature Alloys and Creep
- Distributed and Parallel Computing Systems
- Metallurgical Processes and Thermodynamics
- Hydrogen embrittlement and corrosion behaviors in metals
- Advanced Data Storage Technologies
- Microstructure and mechanical properties
Point Loma Nazarene University
2024
University of Birmingham
1996-2018
University of Warwick
2017-2018
University Hospital Southampton NHS Foundation Trust
2018
University of Louisville
2008-2017
Budker Institute of Nuclear Physics
2014
Novosibirsk State Technical University
2014
University of Louisville Hospital
2004-2013
Campbell Collaboration
2009-2013
Laboratoire d’Annecy de Physique des Particules
2004-2006
AbstractAbstractHigh strength low alloy steels have been shown to be adversely affected by the existence of regions poor impact toughness within heat zone (HAZ) produced during multipass welding. One these is intercritically reheated coarse grained HAZ or intercritical zone. Since this region generally narrow and discontinuous, order 0·5 mm in width, weld simulators are often employed produce a larger volume uniform microstructure suitable for assessment. The steel used study was commercial...
An angular analysis of the decay ${\overline{B} \rightarrow D^\ast \ell^- \overline{\nu}_\ell}$, $\ell\in\{e,\mu\}$, is reported using full $e^+e^-$ collision data set collected by \babar experiment at $\Upsilon(4S)$ resonance. One $B$ meson from ${\Upsilon(4S)\to B\overline{B}}$ fully reconstructed in a hadronic mode, which constrains kinematics and provides determination neutrino momentum vector. The semileptonic described di-lepton mass squared, $q^2$, three angles. first unbinned fit to...
A dedicated measurement of additional radiation in e+e−→μ+μ−γ and e+e−→π+π−γ initial-state-radiation events is presented using the full BABAR data sample. For first time results are at next-to- next-to-next-to-leading order, with one two photons, respectively, for from initial final states. Comparison predictions phokhara afkqed Monte Carlo generators performed, revealing discrepancies one-photon rates angular distributions former. This disagreement has a negligible effect on e+e−→π+π−(γ)...
We study the processes $e^+ e^-\to K^0_S K^0_L\pi^0\gamma$, $K^0_S K^0_L\eta\gamma$, and K^0_L\pi^0\pi^0\gamma$, where photon is radiated from initial state, providing cross section measurements for hadronic final states over a continuum of center-of-mass energies. The results are based on 469~$fb^{-1}$ data collected at or near $\Upsilon(4S)$~ resonance with BaBar detector SLAC. present first K^0_L\pi^0$, K^0_L\eta$, K^0_L\pi^0\pi^0$ sections up to energy 4~GeV, their intermediate...
The formation of ‘onion rings’ during friction stir welding many aluminium based alloys has previously been related to the process parameters (forward and rotational tool motion). have also observed contain fine coarse grain bands particle rich poor bands. However, influence variations in base metal microstructure on presence not investigated is subject this paper. 2xxx 5xxx sheet materials various tempers prepared by both direct chill continuous casting characterised through thickness using...
Mechanical properties of large diameter welded steel pipes depend on the thermomechanically controlled rolled (TMCR) plate microstructure and UOE pipe-forming cold deformation sequence. Strength from to pipe may increase (work-hardening) or decrease (the Bauschinger effect). effect parameters composition processing history. The present study is examining two pipeline grades: X60 (Nb-alloyed) X65 (Nb- V-alloyed). are determined by grain refinement, solid solution, precipitation strengthening...
We study the processes $\gamma \gamma \to K^0_S K^{\pm}\pi^{\mp}$ and K^+ K^- \pi^0$ using a data sample of 519~$fb^{-1}$ recorded with BaBar detector operating at SLAC PEP-II asymmetric-energy $e^+ e^-$ collider center-of-mass energies near $\Upsilon(nS)$ ($n = 2,3,4$) resonances. observe $\eta_c$ decays to both final states perform Dalitz plot analyses model-independent partial wave analysis technique. This allows measurement mass-dependence $I=1/2$ $K \pi$ $\mathcal{S}$-wave amplitude...
This article presents a model-independent search for an additional, mostly sterile, heavy neutral lepton (HNL), that is capable of mixing with the Standard Model $\ensuremath{\tau}$ neutrino strength $|{U}_{\ensuremath{\tau}4}{|}^{2}$, corresponding to absolute square extended Pontecorvo-Maki-Nakagawa-Sakata matrix element. Data from BABAR experiment, total integrated luminosity $424\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, are analyzed using kinematic approach makes no assumptions...
We study the processes ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}\ensuremath{\gamma}$, ${K}_{S}^{0}{K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{\ensuremath{\mp}}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}\ensuremath{\gamma}$, and...
A new mechanism has been proposed to simultaneously explain the presence of dark matter and matter-antimatter asymmetry in universe. This scenario predicts exotic $B$ meson decays into a baryon sector anti-baryon ($\psi_D$) with branching fractions accessible at factories. We present search for $B \rightarrow \Lambda \psi_D$ using data collected by $BABAR$ experiment SLAC. reaction is identified fully reconstructing accompanying requiring single $\Lambda$ remaining particles. No significant...
We have studied the production of J/\ensuremath{\psi} and \ensuremath{\psi}(2S) charmonium mesons in 515 GeV/c ${\mathrm{\ensuremath{\pi}}}^{\mathrm{\ensuremath{-}}}$Be collisions Feynman-x range 0.1${\mathit{x}}_{\mathit{F}}$0.8. were detected via their decay into ${\mathrm{\ensuremath{\mu}}}^{+}$${\mathrm{\ensuremath{\mu}}}^{\mathrm{\ensuremath{-}}}$, both ${\mathrm{\ensuremath{\mu}}}^{+}$${\mathrm{\ensuremath{\mu}}}^{\mathrm{\ensuremath{-}}}$...
The A dependence of the cross section for Jψ production was measured in Feynman-x region 0.1≤xF≤0.8 with a 530-GeV/c π− beam. Thick targets C, Al, Cu, and Pb were employed. Using cross-section parametrization σ=σ0Aα, we find α=0.85±0.06. No statistically significant α on either xF or transverse momentum pt is observed.Received 14 July 1989DOI:https://doi.org/10.1103/PhysRevD.41.1©1990 American Physical Society