10,490 research outputs found
Transverse momentum resummation in soft-collinear effective theory
We present a universal formalism for transverse momentum resummation in the
view of soft-collinear effective theory (SCET), and establish the relation
between our SCET formula and the well known Collins-Soper-Sterman's pQCD
formula at the next-to-leading logarithmic order (NLLO). We also briefly
discuss the reformulation of joint resummation in SCET.Comment: 23 pages, 7 figures; version to appear in Phys. Rev.
Dust in the Local Group
How dust absorbs and scatters starlight as a function of wavelength (known as
the interstellar extinction curve) is crucial for correcting for the effects of
dust extinction in inferring the true luminosity and colors of reddened
astrophysical objects. Together with the extinction spectral features, the
extinction curve contains important information about the dust size
distribution and composition. This review summarizes our current knowledge of
the dust extinction of the Milky Way, three Local Group galaxies (i.e., the
Small and Large Magellanic Clouds, and M31), and galaxies beyond the Local
Group.Comment: 21 pages, 11 figures; invited review article published in "LESSONS
FROM THE LOCAL GROUP -- A Conference in Honour of David Block and Bruce
Elmegreen" eds. Freeman, K.C., Elmegreen, B.G., Block, D.L. & Woolway, M.
(SPRINGER: NEW YORK), pp. 85-10
Current quark mass and g-2 of muon and ee-->\pi\pi
Based on an effective chiral theory of mesons the dependences of
mixing and the vertex on are found. The
form factor of pion agrees with data in both space- and time-like regions. CVC
is satisfied. The values of g-2 of muon from channel are calculated in
the range of .Comment: 14 pages anf three figures 14 pages and three figure
ANALYSIS ON THE INFLUENCE OF THE TRANSFORMATION OF INNOVATION AND ENTREPRENEURSHIP EDUCATION SYSTEM ON COLLEGE STUDENTS’ POSITIVE PSYCHOLOGY
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