24,186 research outputs found
First Results from BESIII
We present the most recent results from the BESIII experiment. This review
covers the studies of charmonium decays, light hadron spectroscopy and charm
physics. Especially, the prospects for weak decays of charm mesons are
addressed at the BESIII.Comment: Presented at Flavor Physics and CP Violation - FPCP 2010, Turin,
Italy, May 25-29, 201
Finslerian dipolar modulation of the CMB power spectra at scales
A common explanation for the CMB power asymmetry is to introduce a dipolar
modulation at the stage of inflation, where the primordial power spectrum is
spatially varying. If the universe in the stage of inflation is Finslerian, and
if the Finsler spacetime is non-reversible under parity flip, ,
then a three dimensional spectrum which is the function of wave vector and
direction is valid. In this paper, a three dimensional primordial power
spectrum with preferred direction is derived in the framework of Finsler
spacetime. It is found that the amplitude of dipolar modulation is related to
the Finslerian parameter, which in turn is a function of wave vector. The
angular correlation coefficients are presented, and the numerical results for
the anisotropic correlation coefficients over the multipole range are
given.Comment: 13 pages, 1 figure, accepted by EPJ
Next-to-next-to-leading order -jettiness soft function for production
We calculate the -jettiness soft function for production up to
next-to-next-to-leading order in QCD, which is an important ingredient of the
-jettiness subtraction method for predicting the differential cross sections
of massive coloured particle productions. The divergent parts of the results
have been checked using the renormalization group equations controlled by the
soft anomalous dimension.Comment: 14 pages, 3 figures, published version in PL
- …