Results 151 to 160 of about 1,110 (184)

Construction and Regulation of a Nanometer-Femtosecond-Scale Spatiotemporally Localized Chiroptical Source in a Single Plasmonic Nanoantenna. [PDF]

ACS Nano
Zu S, Sun Q, Xu C, Misawa H.
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On the Lifetime of the Pseudoscalar Meson

Proceedings of the Physico-Mathematical Society of Japan. 3rd Series, 1942
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A model for pseudoscalar-pseudoscalar scattering and production

Nuclear Physics B - Proceedings Supplements, 1991
Abstract We present results from a coupled-channel quark model analysis of light-quark S-wave pseudoscalar-pseudoscalar scattering and production processes. Annihilation mixing to s-channe qq scalar resonances and quark exchange interactions are found to be important contributions to the dynamics of these processes. Contributions from the exchange of
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Chiral Lagrangian of pseudoscalars and vectors

Physical Review D, 1985
We formulate a parity-invariant chiral Lagrangian which includes nonlinearly transforming vector mesons but no axial-vector mesons. It is gotten by a simple substitution from the Lagrangian involving a linearly transforming vector and axial-vector multiplet.
, Kaymakcalan, , Schechter
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Exclusive decays of a heavy pseudoscalar

Physical Review D, 1986
Branching ratios for two exclusive decay modes of a hidden-heavy-flavor pseudoscalar meson into other heavy mesons are calculated from quantum chromodynamics in lowest-order perturbation theory. Heavy mesons are treated as nonrelativistic quark-antiquark bound states. All parameters are fixed by hadronic and leptonic widths.
, Margolis, , Trottier
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Low energy pseudoscalar-pseudoscalar interactions in the nonrelativistic quark model

AIP Conference Proceedings, 1991
We give a brief introduction to the nonrelativistic quark model and then present results from a coupled‐channel quark model analysis of light‐quark S‐wave pseudoscalar‐pseudoscalar scattering and production processes. Annihilation mixing to s‐channel qq scalar resonances and quark exchange interactions are found to be important.
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Pseudoscalar glueball, the axial-vector anomaly, and the mixing problem for pseudoscalar mesons

Physical Review D, 1981
If the $G(1440)$ observed in $\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}G$ is a pseudoscalar glueball its relationship with other pseudoscalar mesons must be understood. We present a simple, unified picture of these mesons in which there must be mixing between glue matter and quark matter.
C. Rosenzweig, A. Salomone, J. Schechter
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Nonlinear Pseudoscalar Meson Theory

Physical Review, 1952
An attempt is made to explain nuclear saturation by means of a nonlinear pseudoscalar meson field. The same nonlinearity as that introduced by Schiff for the scalar case is employed; the treatment follows similar lines, using classical field theory. The total source strength is calculated for an isolated nucleon at rest, and an expression for the two ...
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IS THERE A NEW PSEUDOSCALAR PARTICLE?

Modern Physics Letters A, 1988
The decay rate of orthopositronium has recently been measured in a new high precision experiment. The result is 10 standard deviations above the theoretical value. It is shown that a light neutral pseudoscalar R may resolve this discrepancy and still be consistent with the anomalous magnetic moments of the electron and the muon. If the mass mR≤5.7 keV
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Scalar and pseudoscalar charges

American Journal of Physics, 1976
The interaction of a ’’scalar’’ charge es (even under T) and a ’’pseudoscalar’’ charge ep (odd under T) is investigated in the framework of classical mechanics. We show that the most general force consistent with the conservation of linear momentum and angular momentum is F=esep(r×v)/cr3, where c is a constant.
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