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Related papers: Exclusive Meson Electroproduction: GPDs, Regge and…

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Exclusive $\pi^0$ electroproduction from nucleons at large $Q^2$ can be described by Generalized Parton Distributions (GPDs), particularly the chiral odd subset related to transversity. These GPDs can be accessed experimentally from various…

High Energy Physics - Phenomenology · Physics 2009-08-18 Simonetta Liuti , Gary R. Goldstein

Exclusive meson leptoproduction from nucleons in the deeply virtual exchanged boson limit can be described by generalized parton distributions (GPDs). Including spin dependence in the description requires 8 independent quark-parton and…

High Energy Physics - Phenomenology · Physics 2017-08-23 Gary R. Goldstein , Simonetta Liuti

Exclusive meson leptoproduction from nucleons in the deeply virtual exchanged boson limit can be described by generalized parton distributions (GPDs). Including spin dependence in the description requires 8 independent quark-parton and…

High Energy Physics - Phenomenology · Physics 2010-11-19 Gary R. Goldstein , Simonetta Liuti

Exclusive pi0 electroproduction from nucleons can be related to transversity, the tensor charge, and other quantities related to transversity. This process isolates C-parity odd and chiral odd combinations of t-channel exchange quantum…

High Energy Physics - Phenomenology · Physics 2017-08-23 Gary R. Goldstein , Simonetta Liuti , Saeed Ahmad

Exclusive $\pi^0$ electroproduction from nucleons is suggested for extracting the tensor charge and other quantities related to transversity from experimental data. This process isolates C-parity odd and chiral odd combinations of t-channel…

High Energy Physics - Phenomenology · Physics 2008-07-16 Gary R. Goldstein , Simonetta Liuti

Our original suggestion to investigate exclusive $\pi^0$ electroproduction as a method for extracting the tensor charge, transversity, and other quantities related to chiral odd generalized parton distributions from cross section and…

High Energy Physics - Phenomenology · Physics 2015-06-17 Gary R. Goldstein , Simonetta Liuti , J. Osvaldo Gonzalez Hernandez

Spin and transverse momentum dependent parton distributions - Generalized Parton Distributions (GPDs) - are at the interface between the QCD structure of the hadrons and observable quantities. The GPDs are linear superpositions within…

High Energy Physics - Phenomenology · Physics 2015-10-27 Gary R. Goldstein , Simonetta Liuti

Exclusive $\pi^o$ electroproduction from nucleons is suggested for extracting the tensor charge and other quantities related to transversity from experimental data. This process isolates C-parity odd and chiral odd combinations of t-channel…

High Energy Physics - Phenomenology · Physics 2009-08-20 Saeed Ahmad , Gary. R. Goldstein , Simonetta Liuti

The diffractive electro- or photo-production of two mesons separated by a large rapidity gap gives access to generalized parton distributions (GPDs) in a very specific way. First, these reactions allow to easily access the chiral-odd…

High Energy Physics - Phenomenology · Physics 2020-09-10 W. Cosyn , B. Pire , L. Szymanowski

Exclusive $\pi^o$ electroproduction is suggested for extracting both the tensor charge and the transverse anomalous magnetic moment from experimental data. A connection between partonic degrees of freedom, given in terms of Generalized…

High Energy Physics - Phenomenology · Physics 2008-07-15 Simonetta Liuti , Gary R. Goldstein , Saeed Ahmad

We show how deeply virtual pseudoscalar meson production experiments single out the contribution of the four chiral odd quark-proton GPDs which are related to the so far elusive transversity distribution function, $h_1$. Furthermore, in the…

High Energy Physics - Phenomenology · Physics 2011-05-02 Gary R. Goldstein , Simonetta Liuti

The chiral-odd generalized parton distribution (GPD), or transversity GPD, of the nucleon can be accessed experimentally through the photo- or electroproduction of two vector mesons on a polarized nucleon target, \gamma^(*) N --> \rho_1…

High Energy Physics - Phenomenology · Physics 2009-01-07 R. Enberg , B. Pire , L. Szymanowski

Electroproduction of two vector mesons with a large rapidity gap between them provides the first feasible selective access to chiral-odd GPDs. The scattering amplitude of the process $ \gamma ^* N \to \rho_L^0 \rho_T^+ N'$ may be…

High Energy Physics - Phenomenology · Physics 2016-09-06 D. Yu. Ivanov , B. Pire , L. Szymanowski , O. V. Teryaev

We demonstrate that the chiral-odd transversity generalized parton distributions (GPDs) of the nucleon can be accessed through the exclusive photoproduction process gamma + N -> pi + rho + N', in the kinematics where the meson pair has a…

High Energy Physics - Phenomenology · Physics 2017-08-23 M. El Beiyad , B. Pire , L. Szymanowski , S. Wallon

While the chiral-even content of the nucleon is better and better studied, the chiral-odd transversity generalized parton distributions (GPDs) remain almost unknown. These GPDs can be accessed experimentally through the exclusive…

High Energy Physics - Phenomenology · Physics 2010-11-22 M. El Beiyad , B. Pire , M. Segond , L. Szymanowski , S. Wallon

We systematically evaluate observables for hard exclusive electroproduction of real photons and compare them to experiment using a set of Generalized Parton Distributions (GPDs) whose parameters are constrained by Deeply Virtual Meson…

High Energy Physics - Phenomenology · Physics 2025-01-08 Peter Kroll , Hervé Moutarde , Franck Sabatié

Exclusive $\pi^o$ electroproduction and related processes are suggested to investigate the chiral odd transversity distributions of quarks in the transversely polarized nucleon, $h_1(x)$, and its first moment, the tensor charge. The…

High Energy Physics - Phenomenology · Physics 2007-12-17 Simonetta Liuti , Saeed Ahmad , Gary R. Goldstein , Leonard Gamberg

We first describe a new way to access the chiral odd transversity parton distribution in the proton through the photoproduction of lepton pairs. The basic ingredient is the interference of the usual Bethe-Heitler or Drell-Yan amplitudes…

High Energy Physics - Phenomenology · Physics 2011-06-02 M. El Beiyad , B. Pire , L. Szymanowski , S. Wallon

We outline in detail the properties of generalized parton distributions (GPDs), which contain new information on the structure of the nucleon and which enter the description of hard exclusive reactions. We highlight the physics content of…

High Energy Physics - Phenomenology · Physics 2016-09-06 K. Goeke , M. V. Polyakov , M. Vanderhaeghen

The chiral-odd transversity generalized parton distributions (GPDs) of the nucleon can be accessed experimentally through the exclusive photoproduction process gamma + N -> pi + rho + N', in the kinematics where the meson pair has a large…

High Energy Physics - Phenomenology · Physics 2010-11-03 M. El Beiyad , B. Pire , M. Segond , L. Szymanowski , S. Wallon
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