Publications
Publication Information
| Title | Measurement of charged-pion production in deep-inelastic scattering off nuclei with the CLAS detector |
| Authors | Sebastian Moran Vasquez, Raphael Dupre, Hayk Hakobyan, Miguel Arratia Munoz, William Brooks, Andres Borquez, Ahmed El Alaoui, Lamiaa El Fassi, Kawtar Hafidi, Rodrigo Mendez Perez, Taisiya Mineeva, Sebouh Paul, Moskov Amaryan, Giovanni Angelini, Whitney Armstrong, Hamza Atac, Nathan Baltzell, Luca Barion, Mikhail Bashkanov, Marco Battaglieri, Ivan Bedlinskiy, Fatiha Benmokhtar, Andrea Bianconi, Letterio Biondo, Angela Biselli, Francesco Bossu, Sergey Boyarinov, William Briscoe, Dilini Bulumulla, Volker Burkert, Daniel Carman, Pierre Chatagnon, Vitaly Chesnokov, Taya Chetry, GIUSEPPE CIULLO, Philip Cole, Marco Contalbrigo, Giovanni Costantini, Annalisa D'Angelo, Natalya Dashyan, Raffaella De Vita, Maxime Defurne, Alexandre Deur, Stefan Diehl, Chaden Djalali, Hovanes Egiyan, Latifa Elouadrhiri, Paul Eugenio, Robert Fersch, Alessandra Filippi, Gagik Gavalian, Yeranuhi Ghandilyan, Gerard Gilfoyle, Anna Rusova, Ralf Gothe, Keith Griffioen, Michel Guidal, Mohammad Hattawy, Florian Hauenstein, Timothy Hayward, David Heddle, Ken Hicks, Adam Hobart, Maurik Holtrop, Yordanka Ilieva, David Ireland, Evgeny Isupov, Hyon-Suk Jo, Dustin Keller, Achyut Khanal, Mahbub Khandaker, Wooyoung Kim, Franz Klein, Aron Kripko, Valery Kubarovsky, Sebastian Kuhn, Lucilla Lanza, Marco Leali, Paolo Lenisa, Kenneth Livingston, Ian Macgregor, Dominique Marchand, Luca Marsicano, Valerio Mascagna, Bryan McKinnon, Christopher McLauchlin, Zein-Eddine Meziani, Stefano Migliorati, Marco Mirazita, Viktor Mokeev, Carlos Munoz Camacho, Pawel Nadel-Turonski, Krishna Neupane, Silvia Niccolai, Gabriel Niculescu, Thomas O'Connell, Mikhail Osipenko, Alexander Ostrovidov, Mathieu Ouillon, Pushpa Pandey, Michael Paolone, Luciano Pappalardo, Eugene Pasyuk, William Phelps, Oleg Pogorelko, Jiwan Poudel, J. Price, Yelena Prok, Brian Raue, Trevor Reed, Marco Ripani, James Ritman, Alessandro Rizzo, Guenther Rosner, Joseph Rowley, Franck Sabatie, Carlos Salgado, Axel Schmidt, Reinhard Schumacher, Youri Sharabian, Evgeny Shirokov, Utsav Shrestha, Daria Sokhan, Orlando Soto Sandoval, Nikolaos Sparveris, Stepan Stepanyan, Igor Strakovsky, Steffen Strauch, Richard Tyson, Maurizio Ungaro, Luca Venturelli, Hakob Voskanyan, Anselm Vossen, Eric Voutier, Daniel Watts, Kevin Wei, Xiangdong Wei, Lawrence Weinstein, Robert Wishart, Michael Wood, Bradley Yale, Nicholas Zachariou, Jixie Zhang, zhiwen zhao |
| JLAB number | JLAB-PHY-21-3493 |
| LANL number | arXiv:2109.09951 |
| Other number | DOE/OR/23177-5313 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review C Volume 105 Page(s) 015201 Refereed | |
| Publication Abstract: | Background: Energetic quarks in nuclear deep-inelastic scattering propagate through the nuclear medium. Processes that are believed to occur inside nuclei include quark energy loss through medium-stimulated gluon bremsstrahlung and intra-nuclear interactions of forming hadrons. More data are required to gain a more complete understanding of these effects. Purpose: To test the theoretical models of parton transport and hadron formation, we compared their predictions for the nuclear and kinematic dependence of pion production in nuclei. Methods: We have measured charged-pion production in semi-inclusive deep-inelastic scattering off D, C, Fe, and Pb using the CLAS detector and the CEBAF 5.014 GeV electron beam. We report results on the nuclearto- deuterium multiplicity ratio for pi+ and pi- as a function of energy transfer, four-momentum transfer, and pion energy fraction or transverse momentum?the first three-dimensional study of its kind. Results: The pi+ multiplicity ratio is found to depend strongly on the pion fractional energy z, and reaches minimum values of 0:67 +/- 0:03, 0:43 +/- 0:02, and 0:27 +/- 0:01 for the C, Fe, and Pb targets, respectively. The z dependences of the multiplicity ratios for pi+ and pi- are equal within uncertainties for C and Fe targets but show differences at the level of 10% for the Pb-target data. The results are qualitatively described by the GiBUU transport model, as well as with a model based on hadron absorption, but are in tension with calculations based on nuclear fragmentation functions. Conclusions: These precise results will strongly constrain the kinematic and flavor dependence of nuclear effects in hadron production, probing an unexplored kinematic region. They will help to reveal how the nucleus reacts to a fast quark, thereby shedding light on its color structure, transport properties, and on the mechanisms of the hadronization process. |
| Experiment Numbers: | E02-104 |
| Group: | Hall B |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevC.105.015201 |
| Accepted Manuscript: | 2109.09951.pdf |
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