STI Publications - View Publication Form #17193
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Publication Information
| Title | A multidimensional study of the structure function ratio sigma_LT'/sigma^0 from hard exclusive pi^+ electro-production off protons in the GPD regime | ||||
| Abstract | A multidimensional extraction of the structure function ratio ?LT?/?0 from the hard exclusive ?ep ? e?n?+ reaction above the resonance region has been performed. The study was done based on beam-spin asymmetry measurements using a 10.6 GeV incident electron beam on a liquid-hydrogen target and the CLAS12 spectrometer at Jefferson Lab. The measurements focus on the very forward regime (t/Q2 ? 1) with a wide kinematic range of xB in the valence regime (0.17 < xB < 0.55), and virtualities Q2 ranging from 1.5 GeV2 up to 6 GeV2. The results and their comparison to theoretical models based on Generalized Parton Distributions demonstrate the sensitivity to chiral-odd GPDs and the directly related tensor charge of the nucleon. In addition, the data is compared to an extension of a Regge formalism at high photon virtualities. It was found that the Regge model provides a better description at low Q2, while the GPD model is more appropriate at high Q2. | ||||
| Author(s) | Stefan Diehl  , Andrey Kim, Kyungseon Joo, Patrick Achenbach , Zulkaida Akbar , Moskov Amaryan , Hamza Atac , Harut Avagyan, Carlos Ayerbe Gayoso , Lamya Baashen , Luca Barion , Mikhail Bashkanov , Marco Battaglieri , Ivan Bedlinskiy , Bruno Benkel Balbontin , Fatiha Benmokhtar, Andrea Bianconi, Angela Biselli, Mariangela Bondi , William Booth , Francesco Bossu , Sergey Boyarinov, Kai Brinkmann , Bill Briscoe , Stephen Bueltmann, Dilini Bulumulla , Volker Burkert, Daniel Carman, Andrea Celentano , Pierre Chatagnon , Vitaly Chesnokov , Taya Chetry , Giuseppe Ciullo , Geraint Clash, Phil Cole , Marco Contalbrigo , Giovanni Costantini , Annalisa D'Angelo , Natalya Dashyan, Raffaella De Vita, Maxime Defurne, Alexandre Deur, Chaden Djalali, Raphael Dupre , Hovanes Egiyan, Mathieu Ehrhart, Ahmed El Alaoui , Lamiaa El Fassi , Latifa Elouadrhiri, Stuart Fegan , Alessandra Filippi , Gagik Gavalian, Yeranuhi Ghandilyan, Jerry Gilfoyle , Derek Glazier , Anna Rusova , Giulia Gosta, Ralf Gothe , Yuri Gotra, Keith Griffioen, Michel Guidal, Kawtar Hafidi , Hayk Hakobyan , Mohammad Hattawy , Timothy Hayward , David Heddle, Adam Hobart, Maurik Holtrop , Yordanka Ilieva , David Ireland , Evgeny Isupov, Hyon-Suk Jo , Mariana Khachatryan, Achyut Khanal, Wooyoung Kim, Aron Kripko , Valery Kubarovsky , Victoria Lagerquist, Jean-Marc Laget, Lucilla Lanza , Marco Leali , Sangbaek Lee , Paolo Lenisa , Xiaqing Li , Kenneth Livingston , Ian Macgregor , Dominique Marchand , Valerio Mascagna , Bryan McKinnon , Zein-Eddine Meziani , Stefano Migliorati , Taisiya Mineeva , Marco Mirazita, Viktor Mokeev, Esteban Molina , Rachel Montgomery , Carlos Munoz Camacho , Pawel Nadel-Turonski , Paul Naidoo, Krishna Neupane , Silvia Niccolai , Matthew Nicol , Gabriel Niculescu , Mikhail Osipenko , Mathieu Ouillon , Pushpa Pandey, Michael Paolone , Luciano Pappalardo , Rafayel Paremuzyan, Eugene Pasyuk , Sebouh Paul , William Phelps, Noemie Pilleux , Madhusudhan Pokhrel , Jiwan Poudel, J. Price, Yelena Prok, Trevor Reed , J. Richards, Marco Ripani , James Ritman, Patrizia Rossi, Franck Sabatie, Carlos Salgado , Susan Schadmand , Axel Schmidt , Youri Sharabian, Evgeny Shirokov, Utsav Shrestha , Paul Simmerling , Daria Sokhan , Nikos Sparveris, Marco Spreafico, Stepan Stepanyan, Igor Strakovsky , Steffen Strauch , Joshua Artem Tan, Nicholaus Trottta , Matteo Turisini, Richard Tyson , Maurizio Ungaro, Simone Vallarino , Luca Venturelli, Hakob Voskanyan , Eric Voutier , Daniel Watts, Xiangdong Wei, Scott Williams, Robert Wishart, Michael Wood, Nicholas Zachariou , Jixie Zhang , Zhiwen Zhao , Maria Zurek |
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| Publication Date | February 2023 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Exp Nuclear Physics / Experimental Halls / Hall B | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physics Letters B |
| Refereed | No |
| Volume | 839 |
| Issue | |
| Page(s) | 137761 |
Attachments/Datasets/DOI Link
| Document(s) |
Diehl_clas12_pip_gpd_paper (1).pdf
(STI Document)
1-s2.0-S0370269323000953-main.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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