95,364 research outputs found
Precision Crystal Calorimetry in High Energy Physics
Crystal Calorimetry is widely used in high energy physics because of its
precision. Recent development in crystal technology identified two key issues
to reach and maintain crystal precision: light response uniformity and
calibration in situ. Crystal radiation damage is understood. While the damage
in alkali halides is found to be caused by the oxygen/hydroxyl contamination,
it is the structure defects, such as oxygen vacancies, cause damage in oxides.Comment: 8 pages with 13 eps Figures, RevTe
Nonsingular Ricci flow on a noncompact manifold in dimension three
We consider the Ricci flow on the
3-dimensional complete noncompact manifold with non-negative
curvature operator, i.e., We prove
that the Ricci flow on such a manifold is nonsingular in any finite time.Comment: 6 page
Proposal for measuring new transverse momentum dependent parton distributions and through semi-inclusive deep inelastic scattering
We calculate and , two of the eight leading twist
transverse momentum dependent parton distributions (TMDs), in the light-cone
quark-diquark model. The new TMDs can be measured through semi-inclusive deep
inelastic scattering (SIDIS). We present predictions of the single and double
spin asymmetries related to and in SIDIS at HERMES,
COMPASS, and JLab kinematics respectively.Comment: 14 latex pages, 7 figures, final version for journal publicatio
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