Typeset Using Revt E X 1

Typeset Using Revt E X 1

The HQET/NRQCD Lagrangian is computed to order α/m3. The computation is performed using dimensional regularization to regulate the ultraviolet and infrared divergences. The results are consistent with reparametrization invariance to order 1/m3. Some subtleties in the matching conditions for NRQCD are discussed. Typeset using REVTEX 1

The Solution of Pde's Using Wavelets Typeset Using Revt E X

Adjoint \quark" Color Elds in Four-dimensional Lattice Gauge Theory: Vacuum Screening and Penetration Typeset Using Revt E X

The elds generated by \quarks" in the adjoint representation of SU(2) color are analyzed in the scaling region of the four-dimensional lattice theory. Evidence of vacuum screening of adjoint quarks is obtained from a comparison of quark-antiquark (QQ) ux-tubes for quarks in the adjoint (\isospin" j = 1) and fundamental (j = 1=2) representations. The component E j of the colorelectric eld streng...

Interesting Magnetic Properties of Fe 1−x Co X Si Alloys Typeset Using Revt E X

Solid solution between nonmagnetic narrow gap semiconductor FeSi and diamagnetic semi-metal CoSi gives rise to interesting metallic alloys with longrange helical magnetic ordering, for a wide range of intermediate concentration. We report various interesting magnetic properties of these alloys, including low temperature re-entrant spin-glass like behaviour and a novel inverted magnetic hysteres...

Do Inertial Electric Charges Radiate with Respect to Uniformly Accelerated Observers? * Typeset Using Revt E X

We revisit the long standing problem of analyzing an inertial electric charge from the point of view of uniformly accelerated observers in the context of semi-classical gravity. We choose a suitable set of accelerated observers with respect to which there is no photon emission coming from the inertial charge. We discuss this result against previous claims [1]. 04.60.+n Typeset using REVTEX This...

Production of Energetic Dileptons with Small Invariant Masses from the Quark-gluon Plasma * Typeset Using Revt E X

The resummation technique of Braaten and Pisarski is used for a complete calculation of the ααs-contribution to the production rate of dileptons with energy E ≫ T and invariant mass M < ∼T from a quark-gluon plasma. In particular the cancellation of the infrared singularity by medium effects is discussed in detail. PACS numbers: 12.38.Mh, 25.30.Rw, 12.38.Cy Typeset using REVTEX Supported by BMB...