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Related papers: Novel Transversity Properties in Semi-Inclusive De…

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The T-odd distribution functions contributing to transversity properties of the nucleon and their role in fueling nontrivial contributions to azimuthal asymmetries in semi-inclusive deep inelastic scattering are investigated. We use a…

High Energy Physics - Phenomenology · Physics 2007-05-23 Leonard P. Gamberg , Gary R. Goldstein , Karo A. Oganessyan

Both meson photoproduction and semi-inclusive deep inelastic scattering can potentially probe transversity properties of the nucleon. We explore how that potential can be realized dynamically. The role of rescattering in both exclusive and…

High Energy Physics - Phenomenology · Physics 2009-11-07 Leonard Gamberg , Gary R. Goldstein , Karo A. Oganessyan

We consider a rescattering mechanism to calculate a leading twist $T$-odd pion fragmentation function, a candidate for filtering the transversity properties of the nucleon. We evaluate the single spin azimuthal asymmetry for a transversely…

High Energy Physics - Phenomenology · Physics 2009-11-10 Leonard Gamberg , Gary R. Goldstein , Karo A. Oganessyan

A review is presented of some aspects of semi-inclusive deeply inelastic scattering and transversity. In particular, the role of $k_T$-dependent and higher-twist (or multi-parton) distributions in generating single-spin asymmetries is…

High Energy Physics - Phenomenology · Physics 2014-11-18 Philip G. Ratcliffe

Both meson photoproduction and semi-inclusive deep inelastic scattering can potentially probe transversity in the nucleon. We explore how that potential can be realized dynamically. The role of rescattering in both exclusive and inclusive…

High Energy Physics - Phenomenology · Physics 2007-05-23 Gary R. Goldstein , Leonard Gamberg

The Sivers function is extracted from HERMES data on single spin asymmetries in semi-inclusive deeply inelastic scattering. Our analysis use a simple Gaussian model for the distribution of transverse parton momenta, together with the flavor…

High Energy Physics - Phenomenology · Physics 2009-11-11 J. C. Collins , A. V. Efremov , K. Goeke , S. Menzel , A. Metz , P. Schweitzer

The non-valence spin-flavor structure of the nucleon extracted from semi-inclusive measurements of polarized deep inelastic scattering depends strongly on the transverse momentum of the detected hadrons which are used to determine the…

High Energy Physics - Phenomenology · Physics 2009-11-07 Steven D. Bass

The concept of weighted asymmetries is revisited for semi-inclusive deep inelastic scattering. We consider the cross section in Fourier space, conjugate to the outgoing hadron's transverse momentum, where convolutions of transverse momentum…

High Energy Physics - Phenomenology · Physics 2015-05-28 Daniel Boer , Leonard Gamberg , Bernhard Musch , Alexei Prokudin

Single spin asymmetries in semi-inclusive deep-inelastic scattering off transversely polarized nucleon targets have been under intense experimental investigation over the past few years. They provide new insights into QCD and the nucleon…

High Energy Physics - Experiment · Physics 2009-08-24 H. Wollny

The investigation of transverse spin and transverse momentum effects in deep inelastic scattering is one of the key physics programs of the COMPASS collaboration. Three channels have been analyzed at COMPASS to access the transversity…

High Energy Physics - Experiment · Physics 2019-08-13 Christian Schill

The recent measurements of azimuthal single spin asymmetries by the HERMES collaboration has opened up new possibility to measure chiral-odd distribution functions through semi-inclusive deep-inelastic scatterings. Here, predictions are…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Wakamatsu

We discuss our present understanding of the transverse spin structure of the nucleon and of related properties originating from parton transverse motion. Starting from the transversity distribution and the ways to access it, we then address…

High Energy Physics - Phenomenology · Physics 2008-11-26 Umberto D'Alesio

We revisit the standard analysis of inclusive Deep Inelastic Scattering off nucleons taking into account the fact that on-shell quarks cannot be present in the final state, but they rather decay into hadrons - a process that can be…

High Energy Physics - Phenomenology · Physics 2017-10-11 Alberto Accardi , Alessandro Bacchetta

We introduce twist-two quark interference fragmentation functions in helicity density matrix formalism and study their physical implications. We show how the nucleon's transversity distribution can be probed through the final state…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. L. Jaffe , Xuemin Jin , Jian Tang

We present a phenomenological analysis of the cos-phi and cos-2phi asymmetries in unpolarized semi-inclusive deep inelastic scattering, based on the recent multidimensional data released by the COMPASS and HERMES Collaborations. In the TMD…

High Energy Physics - Phenomenology · Physics 2015-06-23 V. Barone , M. Boglione , J. O. Gonzalez Hernandez , S. Melis

A review is given on single spin asymmetries in deep inelastic semi-inclusive scattering (SIDIS) and their possible theoretical understanding in the framework of QCD-induced factorization approach, wherefore predictions for transversity…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. V. Efremov , K. Goeke , P. Schweitzer

We shortly review the various methods suggested for determining the transversity function. Among such methods, we consider especially those based on semi-inclusive deep inelastic scattering. In the framework of this kind of reactions, we…

High Energy Physics - Phenomenology · Physics 2009-11-07 Elvio Di Salvo

A model for dihadron fragmentation functions is briefly outlined, that describes the fragmentation of a quark in two unpolarized hadrons. The parameters are tuned to the output of the PYTHIA event generator for two-hadron semi-inclusive…

High Energy Physics - Phenomenology · Physics 2008-11-26 Marco Radici

A short review of single spin asymmetries in deep inelastic semi-inclusive processes, connected with prediction of chiral quark-soliton model for the nucleon transversity distributions, its possible theoretical understanding in the…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. V. Efremov

The cross section for semi-inclusive deep inelastic scattering can be decomposed in terms of 18 structure functions. At low transverse momentum of the detected hadron, the structure functions can be expressed in terms of…

High Energy Physics - Phenomenology · Physics 2008-11-26 Alessandro Bacchetta
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