Multiplicity Distributions in Impact Parameter Space
نویسندگان
چکیده
منابع مشابه
Generalized parton distributions in impact parameter space
We study generalized parton distributions in the impact parameter representation, including the case of nonzero skewness ξ. Using Lorentz invariance, and expressing parton distributions in terms of impact parameter dependent wave functions, we investigate in which way they simultaneously describe longitudinal and transverse structure of a fast moving hadron. We compare this information with the...
متن کاملParton Distributions in Impact Parameter Space
Parton distributions in impact parameter space, which are obtained by Fourier transforming GPDs, exhibit a significant deviation from axial symmetry when the target and/or quark is transversely polarized. In combination with the final state interactions, this transverse deformation provides a natural mechanism for naive-T odd transverse single-spin asymmetries in semi-inclusive DIS. The deforma...
متن کاملSivers Asymmetry and Generalized Parton Distributions in Impact Parameter Space
Recently, it has been pointed out that there exists a connection between the generalized parton distribution E(x, 0, t) and the Sivers asymmetry. For transversely polarized nucleon targets, generalized parton distributions are asymmetric in impact parameter space. This impact parameter space asymmetry, together with the final state interaction of the active quark, gives rise to the Sivers asymm...
متن کاملImpact Parameter Space Interpretation for Generalized Parton Distributions
The Fourier transform of generalized parton distribution functions at ξ = 0 describes the distribution of partons in the transverse plane. The physical significance of these impact parameter dependent parton distribution functions is discussed. In particular, it is shown that they satisfy positivity constraints which justify their physical interpretation as a probability density. The generalize...
متن کاملCharge Distributions in Transverse Coordinate Space and in Impact Parameter Space
We study the charge distributions of the valence quarks inside nucleon in the transverse coordinate space, which is conjugate to the transverse momentum space. We compare the results with the charge distributions in the impact parameter space. PACS numbers: 12.39.Ki, 13.40.Gp, 13.60.-r, 14.20.Dh ar X iv :0 80 5. 47 73 v1 [ he pph ] 3 0 M ay 2 00 8
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1976
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.56.1535