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6 papers · 1 filter
Heavy Mesons In A Relativistic Model
J. Zeng, J. W. Van Orden, W. Roberts
Motivated by the present interest in the heavy quark effective theory, we use the spectator equation to treat the mesonic bound states of heavy quarks. The kernel we use is based o…
An accurate nucleon-nucleon potential with charge-independence breaking
R. B. Wiringa, V. G. J. Stoks, R. Schiavilla
We present a new high-quality nucleon-nucleon potential with explicit charge dependence and charge asymmetry, which we designate Argonne . The model has a charge-independen…
Soft Pion Emission in Semileptonic -Meson Decays
J. L. Goity, W. Roberts
An analysis of semileptonic decays of mesons with the emission of a single soft pion is presented in the framework of the heavy-quark limit using an effective Lagrangian which…
Many-Body Currents and the Strange-Quark Content of 4he
M. J. Musolf, R. Schiavilla, T. W. Donnelly
Meson-exchange current (MEC) contributions to the parity-violating (PV) asymmetry for elastic scattering of polarized electrons from He are calculated over a range of momentum…
Reduced phase space quantization of Ashtekar's gravity on de Sitter background
Ignati Grigentch, D. V. Vassilevich
We solve perturbative constraints and eliminate gauge freedom for Ashtekar's gravity on de Sitter background. We show that the reduced phase space consists of transverse, traceless…
A Large Solid Angle Study of Pion Absorption on He3
LADS collaboration, T. Alteholz, D. Androic +41
Measurements have been made of pi+ absorption on He3 at T_pi+ = 118, 162, and 239 MeV using the Large Acceptance Detector System (LADS). The nearly 4pi solid angle coverage of this…