Body temperature distributions of active diurnal lizards in three deserts: Skewed up or skewed down?
نویسندگان
چکیده
منابع مشابه
Skewed Parton Distributions ∗
Applications of perturbative QCD to deeply virtual Compton scattering and hard exclusive electroproduction processes require a generalization of usual parton distributions for the case when long-distance information is accumulated in nonforward matrix elements of quark and gluon light-cone operators. We describe two types of nonperturbative functions parametrizing such matrix elements: double d...
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We introduce a general perspective on the introduction of skewness into symmetric distributions. Through inverse probability integral transformations we provide a constructive representation of skewed distributions, where the skewing mechanism and the original symmetric distributions are specified separately. We study the effects of the skewing mechanism on e.g. modality, tail behaviour and the...
متن کاملExtraction of skewed parton distributions from experiment
The basic concept of SPD’s [ 1, 2, 3, 4, 5] is best illustrated with the lowest order graph of deeply virtual Compton scattering (DVCS) in which a quark of momentum fraction x1 leaves the proton and is returned to it with x2. The two fractions not being equal is due to the fact that an on-shell photon is produced which necessitates a change in the + momentum in going from the virtual space-like...
متن کاملTHE b − u SKEWED PARTON DISTRIBUTIONS
The b-u skewed parton distributions (SPDs) are discussed. The SPDs allow an un-ambigous superposition of overlap and resonsance contributions and their zeroth order moments represent the B → π transition form factors. The values of the form factors at maximum recoil are found to be F + (0) = F 0 (0) = 0.22 ± 0.05 in agreement with measurements of the B → ππ branching ratio. The branching ratios...
متن کاملNlo Evolution Kernels for Skewed Transversity Distributions
We present a calculation of the two-loop evolution kernels of the twist-two transversally polarized quark and linearly polarized gluon skewed parton distributions in the minimal subtraction scheme and discuss a solution of the evolution equations suitable for numerical implementations.
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ژورنال
عنوان ژورنال: Functional Ecology
سال: 2017
ISSN: 0269-8463,1365-2435
DOI: 10.1111/1365-2435.12966