Article history: Received 7 July 2013 Received in revised form 20 November 2013 Accepted 2 December 2013 Available online 6 December 2013 Editor: M. Doser

Article history: Received 7 July 2013 Received in revised form 20 November 2013 Accepted 2 December 2013 Available online 6 December 2013 Editor: M. Doser

The production of D* and D mesons has been studied in e+e annihilations at x/~=29 GeV. The data, corresponding to an integrated luminosity of 300 pb~, were obtained using the HRS detector at PEP. The cross section is measured to be R (D o + D + ) = 2.40 + 0.35 and we determine the electroweak asymmetry to be 9.9 + 2.7%, which corresponds to an axial vector coupling constant product g~gC = 0.26 ...

An efficient procedure and green route has been developed by using eco-friendly green synthesized palladium nanoparticles (Pd-NPs) as reusable heterogeneous nanocatalyst (Pd@nanocat) for the synthesis of diaryl ethers from the cross coupling reaction of the aryl halides with the phenol in the presence of dimethylsulfoxide (DMSO) as a solvent at 110 oC under natural ligand condition capped Pd-NP...

Article history: Received 7 July 2013 Received in revised form 20 November 2013 Accepted 2 December 2013 Available online 6 December 2013 Editor: M. Doser

The measurement of the single W production through the reaction e + e ? ! We e allows to measure the coupling between a photon and two W bosons. In this note we describe the selection of events of the We e type in e + e ? collisions at p s = 161 ? 172 GeV and derive a limit on the cross section, using only the hadronic decay channel of the W. From the cross section we derive limits on anomalous...

We reevaluate the hadronic part of the electromagnetic vacuum expectation value using the standard dispersion integral approach that utilizes the hadronic cross section measured in e + e − experiments as input. Previous analyses are based upon point-by-point trapezoidal integration which does not treat experimental errors in an optimal way. We use a technique that weights the experimental input...

The scattering of two off-shell photons is an infrared-safe process in QCD. For photon virtualities Q in the range of a few GeV, accessible at LEPII, powerbehaved contributions in (ΛQCD/Q) n to the total cross section may become non-negligible. Based on a dispersion relation for the running coupling, we discuss these contributions and calculate the coefficients of the leading power correction f...

We calculate the contribution arising from nonperturbative quark-gluon chromomagnetic interaction to the high energy total quark-quark cross section and to gluon distributions in nucleon. The estimation obtained within the instanton model of QCD vacuum leads to the conclusion that this type of interaction gives the dominating contribution to the pomeron coupling with the light quarks and to glu...