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Delta(1232) and the polarizabilities of the nucleon
Polarizability baryon chiral perturbation theory meson
2014/12/22
Previous calculations of the polarizabilities of the nucleon within the framework of heavy baryon chiral perturbation theory have included the contribution of the Δ(1232) only in its effects on variou...
Generalized polarizabilities and the chiral structure of the nucleon
Electron scattering gamma virtual information Compton scattering and the Compton scattering
2014/12/22
We are studying the electron scattering process e p to e' p' gamma in order to obtain information on the genuine virtual Compton scattering (VCS) process gamma^* N to gamma N. In addition to the two k...
To provide focus to my review of charm theory at the B-Physics and CP-Violation conference, I consider theoretical issues related to possible charm studies at B-factories. A few topics of interest to ...
Chiral sum rules to second order in quark mass
Isospin hypercharged axial vector current chiral perturbation theory chiral spectrum function low energy spectrum functions
2014/12/22
A new calculation of the isospin and hypercharge axial-vector current propagators [ ΔA33μν(q2) and ΔA88μν(q2)] to two loops in SU(3)×SU(3) chiral perturbation theory is used to derive chiral spectral ...
Charm physics 1996 - A retrospective
Heavy meson decays pseudoscalar conversion the understanding of physics the charm of quarks glamour spectroscopy neutral current
2014/12/22
A pedagogically oriented review is given of progress made over the past year in our understanding of physics related to the charm quark. Included are discussions of the Rc deficit, the ψ′ anomaly, cha...
Factorization in non-leptonic decays of heavy mesons
Model calculation the heavy meson decays pseudoscalar transformation
2014/12/22
We propose a QCD-based model for calculation of the non-perturbative corrections to the factorization approximation in the decays of heavy mesons. In the framework of the model, factorization in pseud...
Electromagnetic mass differences of pions and kaons
Computing meson kaon electromagnetic chiral symmetry constraint low energy the quality of the meson
2014/12/22
We use the Cottingham method to calculate the pion and kaon electromagnetic mass differences with as few model-dependent inputs as possible. The constraints of chiral symmetry at low energy, QCD at hi...
Asymptotic limits and the structure of the pion form factor
Dispersion technology solve meson chiral perturbation theory high energy low energy limit
2014/12/22
We use dispersive techniques to address the behavior of the pion form factor as Q2 → ∞ and Q2 → 0. We perform the matching with the constraints of perturbative QCD and chiral perturbation theory in th...
Final state rescattering as a contribution to B->rho gamma
Radiation gamma $$$gamma scattering
2014/12/22
We provide a new estimate of the long-distance component to the radiative transition $B \to \rho \gamma$. Our mechanism involves the soft-scattering of on-shell hadronic products of nonleptonic $B$ de...
K-L->pi(0)gamma e(+)e(-) and its relation to CP and chiral tests
Decay in Kuala Lumpur non radiation chiral perturbation theory the quantitative easing policy
2014/12/22
The decay KL→π0γe+e- occurs at a higher rate than the nonradiative process KL→π0e+e-, and hence can be a background to CP violation studies using the latter reaction. It also has interest in its own r...
Product Einstein Manifolds, Zeta-Function Regularization and the Multiplicative Anomaly
Addition multiplication Laplace symmetric Spaces the product space
2014/12/22
The global additive and multiplicative properties of Laplace type operators acting on irreducible rank 1 symmetric spaces are considered. The explicit form of the zeta function on product spaces and o...
Search for physics beyond the standard model via a polarization-asymmetry correlation experiment on In-107
Precision measurement polarization positron emission framework model of ev energy
2014/12/22
We report on a new precision measurement of the longitudinal polarization of positrons emitted by polarized 107In nuclei. If interpreted in the framework of the manifest left-right symmetric model, pr...
Chiral anomaly and eta-eta ' mixing
Octet singlet pseudoscalar decay constant mixing Angle
2014/12/22
We determine the η-η′ mixing angle via a procedure relatively independent of theoretical assumptions by simultaneously fitting η,η′ reactions involving the anomaly η,η′→γγ, π+π-γ. We extract reasonabl...
Exact, complete, and universal continuous-time worldline Monte Carlo approach to the statistics of discrete quantum systems
Quantum monte carlo procedures discretization discrete Hilbert space green's function
2014/12/22
We show how the worldline quantum Monte Carlo procedure, which usually relies on an artificial time discretization, can be formulated directly in continuous time, rendering the scheme exact. For an ar...
A study of Bose-Einstein condensation in a two-dimensional trapped gas
Bose - Einstein condensation particles bose particle condensed state thermodynamics
2014/12/22
We examine the possibility of Bose-Einstein condensation (BEC) in two-dimensional (2D) system of interacting particles in a trap. We use a self-consistent mean-field theory of Bose particles interacti...