Two-hadron interference fragmentation functions. I. General framework
نویسندگان
چکیده
منابع مشابه
Two-hadron Inclusive Dis and Interference Fragmentation Functions
For the investigation of the nonperturbative nature of quarks and gluons inside hadrons we mainly rely on the information extracted from distribution (DF) and fragmentation functions (FF) in hard scattering processes. There are three fundamental quark DF that completely characterize the quark inside hadrons at leading twist with respect to its longitudinal momentum and spin: the momentum distri...
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We propose the formulation of a dihadron fragmentation function in terms of parton matrix elements. Under the collinear factorization approximation and facilitated by the cut-vertex technique, the two hadron inclusive cross section at leading order (LO) in eeannihilation is shown to factorize into a short distance parton cross section and the long distance dihadron fragmentation function. We al...
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The class of interference fragmentation functions, arising from interference among different hadron production channels, is reconsidered. Their symmetry properties with respect to chiral transformations allow building spin asymmetries where the quark transversity distribution can be factorized out at leading twist. For the case of two leading spinless hadrons inside the same current jet, the pa...
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We study the process of electron-positron annihilation into back-to-back jets, where in each jet a pair of hadrons is detected. The orientation of these two pairs with respect to each other can be used to extract the interference fragmentation functions in a clean way, for instance from BELLE or BABAR experiment data. This is of relevance for studies of the transversity distribution function. I...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2000
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.62.034008