نتایج جستجو برای: squared sections
تعداد نتایج: 123911 فیلتر نتایج به سال:
Below please find supplementary materials for our paper. First, we restate the optimization problem in Sec. 1. Because for some applications below it is more convenient to use a different form of energy, we show how to transform between the different formulations in Sec. 2. We then provide full technical details for two applications: Multi-Region and Compact shape prior in Sections 3.1 and 3.2 ...
We report differential cross sections for the production of D(2010) produced in 500 GeV/c π-nucleon interactions from experiment E791 at Fermilab, as functions of Feynman-x (xF ) and transverse momentum squared (p 2 T ). We also report theD ∗± charge asymmetry and spin-density matrix elements as functions of these variables. Investigation of the spin-density matrix elements shows no evidence of...
The Kalman lter [1] has long been regarded as the optimal solution to many tracking and data prediction tasks, [2]. Its use in the analysis of visual motion has been documented frequently. The standard Kalman lter derivation is given here as a tutorial exercise in the practical use of some of the statistical techniques outlied in previous sections. The lter is constructed as a mean squared erro...
In this paper a random regression coefficient model is used to provide estimates of small area poverty proportions. As poverty variable is dichotomic at the individual level, the sample data from Spanish Living Conditions Survey is previously aggregated to the level of census sections. EBLUP estimates based on the proposed model are obtained. A closed-formula procedure to estimate the mean squa...
The production of charm and beauty quarks in ep interactions has been measured with the ZEUS detector at HERA for squared four-momentum exchange Q 2 > 20 GeV 2 , using an integrated lu-minosity of 126 pb −1. Charm and beauty quarks were identified through their decays into muons. Cross sections are presented for muon transverse momenta p µ T > 1.5 GeV and pseudorapidities −1.6 < η µ < 2.3. The ...
Using a 16 GeV linearly polarized photon beam, we have measured asymmetries in the process yN K+(A + 2;) from hydrogen and deuterium, for squared four momentum transfers, t, between 0.01 and 0.8 (G~V/C)~. The data show that for -t 2 0.1 (G~V/C)~, the cross sections for w K+A, m -KK+Co, and -yn --L K+Xare strongly dominated by natural parity exchange, as is the case in single pion photoproduc ti...
Following a prior analysis of measured pp elastic differential cross sections, the impact parameter representation in terms of profile functions is calculated from two different parametrizations of single diffractive dissociation data. The derivative of this quantity with respect to the collision energy squared s measures the growth rate of the reaction’s blackness. Its distribution in impact p...
Exclusive coherent and incoherent electroproduction of the p° meson from H and N targets has been studied at the HERMES experiment as a function of coherence length (lc), corresponding to the lifetime of hadronic fluctuations of the virtual photon, and squared fourmomentum of the virtual photon (—<2). The ratio of N to *H cross sections per nucleon, called nuclear transparency, was found to inc...
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