We demonstrate that the meson-exchange contribution to D(e,e'p)Delta(T{sub p} {approx} 0.7-1 GeV and being at rest) is small compared to the six-quark contribution. The cross-section is large enough to be measured at CEBAF. It means that through this reaction we could observe and ...
Quark spectator and tadpole graphs as predicted by the Cabibbo—Glashow-Iliopoulos-Maiani weak current and Hamiltonian density combine to give a complete description of charmed D0→K-π+, K 0π0, and D+→K 0π+ Cabibbo-angle-enhanced decays and D+→K 0K+, π0π+, and D0→K-K+, ...
We demonstrate that the meson-exchange contribution to d(e,e′p)Δ (Ep ∼ 0.7 − 1 GeV and Δ being at rest) is small compared to the six-quark contribution. The cross-section is large enough to be measured at CEBAF. This means that through this reaction we could observe and study...
We have studied in detail the cross section for the d( e, e' p) Δ reaction leading to the emission of a fast nucleon and a Δ at rest, which has been advocated as a tool to investigate quark effects in nuclei. We find that ordinary meson-exchange currents mechanisms dominate the ...
Constraining heavy quark energy loss using $B$ and $D$ meson measurements in heavy ion collision at RHIC and LHC energies Singh, "Constraining heavy quark energy loss using B and D meson measurements in heavy ion collision at RHIC and LHC energies," Nuclear Physics A, vol... K Saraswat,...
Measurement Of Torque(d Meson Going To Muon+ Neutrino)/torque(d Meson Going To Phi Meson Pion+) And The Pseudoscalar Decay Constant F(d Meson) (anti S Quar... Measurement Of Torque(d Meson Going To Muon+ Neutrino)/torque(d Meson Going To Phi Meson Pion+) And The Pseudoscalar Decay ...
We study the effects of strong magnetic fields on antikaon condensation in neutron star matter using the quark-meson coupling (QMC) model. The QMC model describes a nuclear many-body system as nonoverlapping MIT bags in which quarks interact through the self-consistent exchange of scalar and vect...
The results of the present work are compared to calculations based on the QCD sum-rule approach, the quark-meson coupling model, chiral perturbation theory, as well as to studies of quarkonium dissociation using heavy quark potential from lattice QCD. 展开 ...
We present a measurement of the composition of B meson inclusive semileptonic decays using 9.4 fb(-1) of e(+)e(-) data taken with the CLEO detector at the ... Csorna,SE,Bonvicini,... - 《Physical Review D Particles & Fields》 被引量: 28发表: 2004年 ...
meson. Predictions for the pion decay widths of the L = 1 D meson states have also been made in ref. [3]. In case of S-wave decay of these states, it is shown that in order to avoid large overestimates it is important to include also two-quark exchange charge amplitudes associated ...