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Related papers: Semi-Inclusive DIS and Transversity

200 papers

A revised formula for the inclusive cross section for double parton scattering in terms of the modified collinear two-parton distributions extracted from deep inelastic scattering is suggested. The possible phenomenological issues are…

High Energy Physics - Phenomenology · Physics 2015-03-19 M. G. Ryskin , A. M. Snigirev

It is known the single transverse spin asymmetry in semi-inclusive deep inelastic scattering can be factorized by a twist-3 distribution function $T_F$, which contains a gluon field strength tensor. With transverse gluon included in the…

High Energy Physics - Phenomenology · Physics 2020-05-07 G. P. Zhang

We provide an introduction to the ideas of spin-dependent deep-inelastic scattering. Recent experimental results are summarised and possible explanations related to the axial anomaly presented. Further experiments that could greatly clarify…

High Energy Physics - Phenomenology · Physics 2010-02-17 S. D. Bass , A. W. Thomas

We discuss various azimuthal asymmetries in semi-inclusive DIS and e^+e^- ==> h1 h2 X which involve chiral odd quantities like the transversity distribution h_1 and a fragmentation function H_1^\perp. For the fragmentation described by…

High Energy Physics - Phenomenology · Physics 2009-09-25 R. Jakob , D. Boer , P. J. Mulders

We construct a language for identifying kinematical regions of transversely differential semi-inclusive deep inelastic scattering cross sections with particular underlying partonic pictures, especially in regions of moderate to low $Q$…

High Energy Physics - Phenomenology · Physics 2019-11-01 M. Boglione , A. Dotson , L. Gamberg , S. Gordon , J. O. Gonzalez-Hernandez , A. Prokudin , T. C. Rogers , N. Sato

The theoretical aspects of two leading twist transversity single spin asymmetries, one arising from the Collins effect and one from the interference fragmentation functions, are reviewed. Issues of factorization, evolution and Sudakov…

High Energy Physics - Phenomenology · Physics 2015-06-25 Daniel Boer

The general structure of semi-inclusive polarized electron scattering from polarized spin-1/2 targets is developed for use at all energy scales, from modest-energy nuclear physics applications to use in very high energy particle physics.…

Nuclear Theory · Physics 2022-12-02 T. W. Donnelly , Sabine Jeschonnek , J. W. Van Orden

Parton distributions given by deep inelastic lepton scattering (DIS) are not equal to the probabilities of finding those partons in the parent wave function. Soft rescattering of the struck parton within the coherence length of the hard…

High Energy Physics - Phenomenology · Physics 2009-11-07 Paul Hoyer

Being the fountainhead of transverse distortion and asymmetries in accordance to $``SSA=GPD \ast FSI\,"$, we study the spin flip generalized parton distribution. We demonstrate this transverse deformation by using the quark-scalar diquark…

High Energy Physics - Phenomenology · Physics 2024-09-27 Navpreet Kaur , Harleen Dahiya

Over the past years a lot of progress has been made in the understanding of single spin asymmetries in hard scattering processes. We briefly review this subject, covering the non-vanishing of time-reversal odd parton distributions,…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. Metz , M. Schlegel

We study the single spin asymmetry in the transversely polarized proton production and the lambda hyperon production in semi-inclusive deep inelastic scattering with a $\sin \phi_{S_h}$ modulation, in which $S_h$ is the azimuthal angle of…

High Energy Physics - Phenomenology · Physics 2018-09-03 Yongliang Yang , Wenjuan Mao , Zhun Lu

We compute the single-spin asymmetry $A_{UL}$ in semi-inclusive deep-inelastic scattering of unpolarized leptons and longitudinally polarized protons at large transverse momentum of the produced hadron. Our calculation is performed in…

High Energy Physics - Phenomenology · Physics 2022-08-10 Maurizio Abele , Matthias Aicher , Fulvio Piacenza , Andreas Schäfer , Werner Vogelsang

We present the complete results up to twist-3 for hadron production in the target fragmentation region of semi-inclusive deep inelastic scattering with a polarized lepton beam and polarized nucleon target. The nonperturbative effects are…

High Energy Physics - Phenomenology · Physics 2023-11-23 K. B. Chen , J. P. Ma , X. B. Tong

A review on the theoretical aspects and the experimental results of polarized deep inelastic scattering and of other hard scattering processes is presented. The following items are discussed: longitudinally polarized structure functions,…

High Energy Physics - Phenomenology · Physics 2011-01-25 Bodo Lampe , Ewald Reya

We study the single spin asymmetry (SSA) for the pion production in semi-inclusive deep inelastic scattering, $ep^\uparrow\to e\pi X$, in the framework of the collinear factorization. We derive the complete cross section formula associated…

High Energy Physics - Phenomenology · Physics 2008-11-26 Hisato Eguchi , Yuji Koike , Kazuhiro Tanaka

We present a calculation of single and double spin asymmetries for inclusive hadron production in hadronic collisions. Our approach is based on Leading Order (LO) perturbative QCD and generalized factorization theorems, with full account of…

High Energy Physics - Phenomenology · Physics 2017-08-23 U. D'Alesio , S. Melis , F. Murgia

Unpolarised semi-inclusive DIS is receiving a growing interest as a powerful tool to access poorly known universal functions that play a key role in many processes, in particular in the study of the spin structure of the nucleon. These…

High Energy Physics - Experiment · Physics 2015-06-23 Nour Makke

A comprehensive collection of results on longitudinal double-spin asymmetries is presented for charged pions and kaons produced in semi-inclusive deep-inelastic scattering of electrons and positrons on the proton and deuteron, based on the…

In a perturbative QCD approach, with inclusion of spin and transverse momentum effects, experimental data on azimuthal asymmetries observed in polarized semi-inclusive deeply inelastic scattering and e+ e- annihilations can be used to…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Boglione , U. D'Alesio , F. Murgia

To identify some way to measure the quark transversity, this thesis analyzes one-particle and two-particle inclusive deep inelastic scattering, where one and two of the outgoing hadrons are detected in coincidence with the electron. It is…

High Energy Physics - Phenomenology · Physics 2009-09-29 A. Bacchetta