A5004903305- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Black Holes and Theoretical Physics
- Physics of Superconductivity and Magnetism
- Atomic and Subatomic Physics Research
- Theoretical and Computational Physics
- Dark Matter and Cosmic Phenomena
- Cold Atom Physics and Bose-Einstein Condensates
- Medical Imaging Techniques and Applications
- Spectral Theory in Mathematical Physics
- Particle Accelerators and Free-Electron Lasers
- Matrix Theory and Algorithms
- Quantum chaos and dynamical systems
- Markov Chains and Monte Carlo Methods
- Advanced NMR Techniques and Applications
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Nuclear physics research studies
- Quantum and electron transport phenomena
- Rare-earth and actinide compounds
- Superconducting Materials and Applications
- Magnetic confinement fusion research
- Radiation Detection and Scintillator Technologies
- Distributed and Parallel Computing Systems
University of Washington
2016-2025
University of Mary Washington
2024
Seoul National University
2010-2019
Langues, Textes, Traitements Informatiques, Cognition
2012-2019
Goethe University Frankfurt
2019
Los Alamos National Laboratory
1986-2019
Michigan State University
2019
Seattle University
1986-2019
Campbell Collaboration
2018
Thomas Jefferson National Accelerator Facility
1992-2016
We review lattice results related to pion, kaon, $D$-meson, $B$-meson, and nucleon physics with the aim of making them easily accessible nuclear particle communities. More specifically, we report on determination light-quark masses, form factor $f_+(0)$ arising in semileptonic $K \to \pi$ transition at zero momentum transfer, as well decay constant ratio $f_K/f_\pi$ its consequences for CKM matrix elements $V_{us}$ $V_{ud}$. Furthermore, describe obtained some low-energy constants...
Abstract We review lattice results related to pion, kaon, D -meson, B and nucleon physics with the aim of making them easily accessible nuclear particle communities. More specifically, we report on determination light-quark masses, form factor $$f_+(0)$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>f</mml:mi> <mml:mo>+</mml:mo> </mml:msub> <mml:mo>(</mml:mo> <mml:mn>0</mml:mn> <mml:mo>)</mml:mo> </mml:mrow> </mml:math> arising in semileptonic $$K...
We present the physics program of Belle II experiment, located on intensity frontier SuperKEKB $e^+e^-$ collider. collected its first collisions in 2018, and is expected to operate for next decade. It anticipated collect 50/ab collision data over lifetime. This book outcome a joint effort collaborators theorists through theory interface platform (B2TiP), an that commenced 2014. The aim B2TiP was elucidate potential impacts program, which includes wide scope topics: B physics, charm, tau,...
We generalize the Lellouch-Luscher formula, relating weak matrix elements in finite and infinite volumes, to case of multiple strongly-coupled decay channels into two scalar particles. This is a necessary first step on way lattice QCD calculation rates for processes such as D -> pi KK. also present field theoretic derivation generalization Luscher's volume quantization condition two-particle channels. give fully explicit results channels, including form generalized formula expressed terms...
During 2011 the LHCb experiment at CERN collected 1.0 fb−1 of $\sqrt{s} = 7\mbox{~TeV}$ pp collisions. Due to large heavy quark production cross-sections, these data provide unprecedented samples flavoured hadrons. The first results from have made a significant impact on flavour physics landscape and definitively proved concept dedicated in forward region hadron collider. This document discusses implications measurements classes extensions Standard Model, bearing mind interplay with searches...
In the original version of this manuscript, an error was introduced on pp352. '2.7nb:1.6nb' has been corrected to '2.4nb:1.3nb' in current online and printed version. doi:10.1093/ptep/ptz106.
We present a generalization of L\"uscher's relation between the finite-volume spectrum and scattering amplitudes to case three particles. consider relativistic scalar field theory in which couplings are arbitrary aside from ${\mathbb{Z}}_{2}$ symmetry that removes vertices with an odd number The is assumed have two-particle phase shifts bounded by $\ensuremath{\pi}/2$ regime elastic scattering. determine poles odd-particle-number correlator, we analyze all orders perturbation theory. show it...
In this article we complete our formalism relating the finite-volume energy spectrum of a scalar quantum field theory to three-to-three scattering amplitude, ${\mathcal{M}}_{3}$. previous work [Phys. Rev. D 90, 116003 (2014)], found quantization condition nonstandard infinite-volume quantity, denoted ${\mathcal{K}}_{\mathrm{df},3}$. Here present relation between ${\mathcal{K}}_{\mathrm{df},3}$ and We then discuss briefly how now completed can be practically implemented extract...
A bstract We develop a comprehensive framework for extracting the pole position and properties of doubly-charmed tetraquark $$ {T}_{\textrm{cc}}^{+}(3875) <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>T</mml:mi> <mml:mi>cc</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> <mml:mfenced> <mml:mn>3875</mml:mn> </mml:mfenced> </mml:math> from lattice QCD data using relativistic three-particle formalism. This approach incorporates effect one-pion exchange diagram in DDπ...
I develop a diagrammatic method for calculating chiral logarithms in the quenched approximation. While not rigorous, is based on physically reasonable assumptions, which can be tested by numerical simulations. The main results are that, at leading order expansion, (a) there no $f_\pi$, $m_u=m_d$; (b) $B_K$ and related kaon B-parameters are, $m_d=m_s$, same approximation as full theory; (c) $m_\pi$ condensate, extra due to loops containing $\eta'$, lead peculiar non-analytic dependence of...
We discuss the phase diagram of Wilson fermions in ${m}_{0}\ensuremath{-}{g}^{2}$ plane for two-flavor QCD. argue that, as originally suggested by Aoki, there is a which flavor and parity are spontaneously broken. Recent numerical results on spectrum overlap Hamiltonian have been interpreted evidence against Aoki's conjecture. show that they fact consistent with presence flavor-parity broken ``Aoki phase.'' also how, continuum limit approached, one can study lattice theory using chiral...
We study the leading discretization errors for staggered fermions by first constructing continuum effective Lagrangian, including terms of ${O(a}^{2}),$ and then corresponding chiral Lagrangian. The ${O(a}^{2})$ in Lagrangian completely break $\mathrm{SU}(4)$ flavor symmetry down to discrete subgroup respected lattice theory. find, however, that potential maintain an $\mathrm{SO}(4)$ $\mathrm{SU}(4).$ It follows pion masses are symmetric, implying three degeneracies within seven irreducible...
Working in relativistic quantum field theory, we derive the quantization condition satisfied by coupled two- and three-particle systems of identical scalar particles confined to a cubic spatial volume with periodicity $L$. This gives relation between finite-volume spectrum infinite-volume $\mathbf{2}\ensuremath{\rightarrow}\mathbf{2}$, $\mathbf{2}\ensuremath{\rightarrow}\mathbf{3}$, $\mathbf{3}\ensuremath{\rightarrow}\mathbf{3}$ scattering amplitudes for such theories. The result holds...
In previous work, we have developed a relativistic, model-independent three-particle quantization condition, but only under the assumption that no poles are present in two-particle K matrices appear as scattering subprocesses [M. T. Hansen and S. R. Sharpe, Phys. Rev. D 90, 116003 (2014); M. 92, 114509 (2015); A. Brice\~no et al., 95, 074510 (2017).]. Here lift this restriction, by deriving condition for identical scalar particles with G-parity symmetry, case matrix has pole kinematic regime...
We analyze the spectrum of two- and three-pion states maximal isospin obtained recently for isosymmetric QCD with pion mass M≈200 MeV in Hörz Hanlon, [Phys. Rev. Lett. 123, 142002 (2019)PRLTAO0031-900710.1103/PhysRevLett.123.142002]. Using relativistic three-particle quantization condition, we find ∼2σ evidence a nonzero value contact part 3π^{+} (I=3) scattering amplitude. also compare our results to leading-order chiral perturbation theory. good agreement at threshold some tension energy...
We present a generalization of the relativistic, finite-volume, three-particle quantization condition for non-identical pions in isosymmetric QCD. The resulting formalism allows one to use discrete finite-volume energies, determined using lattice QCD, constrain scattering amplitudes all possible values two- and three-pion isospin. As case identical considered previously, result splits into two steps: first defines non-perturbative function with roots equal allowed $E_n(L)$, given cubic...
A bstract We generalize the relativistic field-theoretic three-particle finite-volume scattering formalism to describe generic DDπ systems in charm C = 2 sector. This includes isospin-0 channel, which recently discovered doubly-charmed tetraquark T cc (3875) + is expected manifest as a pole → amplitude. The presented here can also be applied lattice QCD settings D * bound and, particular, remains valid below left-hand cut DD scattering, thus resolving an issue previous analyses of...
We calculate various properties of pseudoscalar mesons in partially quenched QCD using chiral perturbation theory through next-to-leading order. Our results can be used to extrapolate from simulations, as long the latter use three light dynamical quarks. In other words, one unphysical simulations extract physical quantities---in this case quark masses, meson decay constants, and Gasser-Leutwyler parameters ${L}_{4}\ensuremath{-}{L}_{8}.$ proposal for determining ${L}_{7}$ makes explicit an...
This paper completes the argument that lattice simulations of partially quenched QCD can provide quantitative information about itself, with aid chiral perturbation theory. A barrier to doing this has been inclusion $\Phi_0$, generalization $\eta'$, in previous calculations effective invalidates low energy perturbative expansion, gives rise many new unknown parameters, and makes it impossible reliably calculate relation between theory QCD. We show is straightforward natural formulate without...