Publications
Publication Information
| Title | Beam-target double spin asymmetry in quasi-elastic electron scattering off the deuteron with CLAS |
| Authors | Michael Mayer, Sebastian Kuhn, Zulkaida Akbar, Sergio Pereira, Gegham Asryan, Harutyun Avagyan, Rafael Badui, Jacques Ball, Nathan Baltzell, Marco Battaglieri, Ivan Bedlinskiy, Angela Biselli, Sergey Boyarinov, Peter Bosted, William Briscoe, William Brooks, Stephen Bueltmann, Volker Burkert, Daniel Carman, Andrea Celentano, Gabriel Charles, Taya Chetry, GIUSEPPE CIULLO, L. Clark, Luca Colaneri, Nicholas Compton, Marco Contalbrigo, Volker Crede, Annalisa D'Angelo, Natalya Dashyan, Raffaella De Vita, Enzo De Sanctis, Alexandre Deur, Chaden Djalali, Raphael Dupre, Ahmed El Alaoui, Lamiaa El Fassi, Paul Eugenio, Erica Fanchini, Gleb Fedotov, Alessandra Filippi, Jamie Fleming, Tony Forest, Yeranuhi Ghandilyan, Gerard Gilfoyle, Kevin Giovanetti, Francois-Xavier Girod-Gard, Colin Gleason, Ralf Gothe, Keith Griffioen, Michel Guidal, Lei Guo, Hayk Hakobyan, Charles Hanretty, Mohammad Hattawy, Ken Hicks, Maurik Holtrop, Simon Hughes, Charles Hyde, Yordanka Ilieva, David Ireland, Boris Ishkhanov, Evgeny Isupov, Hao Jiang, Christopher Keith, Dustin Keller, Grigor Khachatryan, Mariana Khachatryan, Mahbub Khandaker, Andrey Kim, Wooyoung Kim, Andi Klein, Valery Kubarovsky, Lucilla Lanza, Paolo Lenisa, Kenneth Livingston, Ian MacGregor, Bryan McKinnon, David Meekins, Marco Mirazita, Viktor Mokeev, Aram Movsisyan, Lelia Net, Silvia Niccolai, Gabriel Niculescu, Mikhail Osipenko, Alexander Ostrovidov, Rafayel Paremuzyan, Kijun Park, Eugene Pasyuk, William Phelps, Oleg Pogorelko, John Price, Yelena Prok, Andrew Puckett, Marco Ripani, Alessandro Rizzo, Guenther Rosner, Patrizia Rossi, Franck Sabatie, Reinhard Schumacher, Youri Sharabian, Iuliia Skorodumina, Gregory Smith, Daria Sokhan, Nikolaos Sparveris, Ivana Stankovic, Stepan Stepanyan, Steffen Strauch, Valeriy Sytnik, Mauro Taiuti, Ye Tian, Bayram Torayev, Maurizio Ungaro, Hakob Voskanyan, Eric Voutier, Natalie Walford, Lawrence Weinstein, Michael Wood, Nicholas Zachariou, Jixie Zhang, Irene Zonta |
| JLAB number | JLAB-PHY-16-2371 |
| LANL number | arXiv:1610.06109 |
| Other number | DOE/OR/23177-3973 |
| 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 95 Page(s) 024005 Refereed | |
| Publication Abstract: | Quasi-elastic electron scattering on the deuteron is a benchmark reaction to test our understanding of deuteron structure and the properties and interactions of the two nucleons bound in the deuteron. The experimental data presented here can be used to test state-of-the-art models of the deuteron and the two-nucleon interaction in the final state after two-body breakup of the deuteron. Focusing on polarization degrees of freedom, we gain information on spin-momentum correlations in the deuteron ground state (due to the D-state admixture) and on the limits of the Impulse Approximation (IA) picture as it applies to measurements of spin-dependent observables like spin structure functions for bound nucleons. We measured the beam-target double spin asymmetry for quasi-elastic electron scattering off the deuteron at several beam energies using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. The deuterons were polarized along (or opposite to) the beam direction. The double spin asymmetries were measured as a function of photon virtuality , missing momentum, and the angle between the (inferred) "spectator" neutron and the momentum transfer direction. The results are compared with a recent model that includes Final State Interactions (FSI) using a complete parameterization of nucleon-nucleon scattering, as well as a simplified model using the Plane Wave Impulse Approximation (PWIA). We find overall good agreement with both the PWIA and FSI expectations at low to medium missing momenta, including the change of the asymmetry due to the contribution of the deuteron D-state at higher momenta. At the highest missing momenta, our data clearly agree better with the calculations including FSI. |
| Experiment Numbers: | E93-009 |
| Group: | Hall B |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevC.95.024005 |
| Accepted Manuscript: | |
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