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Related papers: Transversity GPD in photo- and electroproduction o…

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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

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

Electroproduction of two mesons well separated in rapidity allows the first feasible selective access to chiral-odd transversity GPDs provided one of these mesons is a transversely polarized vector meson rho_T.

High Energy Physics - Phenomenology · Physics 2008-12-18 B. Pire , L. Szymanowski

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 2015-05-18 M. El Beiyad , B. Pire , M. Segond , L. Szymanowski , S. Wallon

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

The chiral-odd transversity generalized parton distributions of the nucleon can be accessed experimentally through the exclusive photoproduction process gamma N -> pi rhoT N', with or without beam and target polarization, provided the…

High Energy Physics - Phenomenology · Physics 2009-11-17 M. El Beiyad , B. Pire , M. Segond , L. Szymanowski , S. Wallon

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

Transversity generalized parton distributions (GPDs) can be probed in diffractive electro- and photoproduction of two vector mesons on a hadron in kinematics where the two vector mesons are separated by a large rapidity gap. We report on…

High Energy Physics - Phenomenology · Physics 2019-07-23 W. Cosyn , B. Pire , L. Szymanowski

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

Photoproduction of a pair of particles with large invariant mass is a natural extension of collinear QCD factorization theorems which have been much studied for deeply virtual Compton scattering and deeply virtual meson production. We…

High Energy Physics - Phenomenology · Physics 2016-04-20 R. Boussarie , B. Pire , L. Szymanowski , S. Wallon

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 consider the electroproduction of two vector mesons with a large rapidity gap between them on a nucleon target in the process $ \gamma ^* N \to \rho_1 \rho_2 N'$. We calculate the Born term for this process within the collinear…

High Energy Physics - Phenomenology · Physics 2010-04-05 D. Yu. Ivanov , B. Pire , L. Szymanowski , O. V. Teryaev

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 pi0 electroproduction from nucleons at large photon virtuality can be described in terms of Generalized Parton Distributions, particularly the chiral odd subset. Chiral odd GPDs are related to transversity and can be accessed…

High Energy Physics - Phenomenology · Physics 2009-08-24 Gary R. Goldstein , Simonetta Liuti

The role of transversity or helicity-flip generalized parton distributions (GPDs) in leptoproduction of vector mesons is investigated within the framework of the handbag approach. The transversity GPDs in combination with twist-3 meson wave…

High Energy Physics - Phenomenology · Physics 2015-06-17 S. V. Goloskokov , P. Kroll

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

We summarize recent developments in understanding the concept of generalized parton distributions (GPDs), its relation to nucleon structure, and its application to high-Q2 electroproduction processes. Following a brief review of QCD…

High Energy Physics - Phenomenology · Physics 2009-08-24 C. Weiss

We describe the process $\gamma N \to \gamma\,\rho N'$ in the generalized Bjorken regime where the $\gamma\,\rho $ pair has a large invariant mass. In the collinear QCD factorization framework, the amplitude gives access to both chiral-even…

High Energy Physics - Phenomenology · Physics 2017-08-31 R. Boussarie , B. Pire , L. Szymanowski , S. Wallon

We demonstrate that the transversity chiral odd generalized parton distributions can be accessed through the azimuthal dependence of the nu N -> l D N' or nubar N -> l D N' differential cross sections, in the framework of the colinear QCD…

High Energy Physics - Phenomenology · Physics 2015-10-08 B. Pire , L. Szymanowski
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