An experimental program with high duty-cycle polarized and unpolarized positron beams at Jefferson Lab
Por:
Accardi A., Afanasev A., Albayrak I., Ali S.F., Amaryan M., Annand J.R.M., Arrington J., Asaturyan A., Atac H., Avakian H., Averett T., Gayoso C.A., Bai X., Barion L., Battaglieri M., Bellini V., Beminiwattha R., Benmokhtar F., Berdnikov V.V., Bernauer J.C., Bertone V., Bianconi A., Biselli A., Bisio P., Blunden P., Boer M., Bondì M., Brinkmann K.-T., Briscoe W.J., Burkert V., Cao T., Camsonne A., Capobianco R., Cardman L., Carmignotto M., Caudron M., Causse L., Celentano A., Chatagnon P., Chen J.-P., Chetry T., Ciullo G., Cline E., Cole P.L., Contalbrigo M., Costantini G., D’Angelo A., Darmé L., Day D., Defurne M., De Napoli M., Deur A., De Vita R., D’Hose N., Diehl S., Diefenthaler M., Dongwi B., Dupré R., Dutrieux H., Dutta D., Ehrhart M., El Fassi L., Elouadrhiri L., Ent R., Erler J., Fernando I.P., Filippi A., Flay D., Forest T., Fuchey E., Fucini S., Furletova Y., Gao H., Gaskell D., Gasparian A., Gautam T., Girod F.-X., Gnanvo K., Grames J., Grauvogel G.N., Gueye P., Guidal M., Habet S., Hague T.J., Hamilton D.J., Hansen O., Hasell D., Hattawy M., Higinbotham D.W., Hobart A., Horn T., Hyde C.E., Ibrahim H., Ilyichev A., Italiano A., Joo K., Joosten S.J., Khachatryan V., Kalantarians N., Kalicy G., Karky B., Keller D., Keppel C., Kerver M., Khandaker M., Kim A., Kim J., King P.M., Kinney E., Klimenko V., Ko H.-S., Kohl M., Kozhuharov V., Kriesten B.T., Krnjaic G., Kubarovsky V., Kutz T., Lanza L., Leali M., Lenisa P., Liyanage N., Liu Q., Liuti S., Mammei J., Mantry S., Marchand D., Markowitz P., Marsicano L., Mascagna V., Mazouz M., McCaughan M., McKinnon B., McNulty D., Melnitchouk W., Metz A., Meziani Z.-E., Migliorati S., Mihovilovic M., Milner R., Mkrtchyan A., Mkrtchyan H., Movsisyan A., Moutarde H., Muhoza M., Camacho C.M., Murphy J., Nadel-Turonski P., Nardi E., Nazeer J., Niccolai S., Niculescu G., Novotny R., Owens J.F., Paolone M., Pappalardo L., Paremuzyan R., Pasquini B., Pasyuk E., Patel T., Pegg I., Peng C., Perera D., Poelker M., Price K., Puckett A.J.R., Raggi M., Randazzo N., Rashad M.N.H., Rathnayake M., Raue B., Reimer P.E., Rinaldi M., Rizzo A., Roblin Y., Roche J., Rondon-Aramayo O., Sabatié F., Salmè G., Santopinto E., Santos Estrada R., Sawatzky B., Schmidt A., Schweitzer P., Scopetta S., Sergeyeva V., Shabestari M., Shahinyan A., Sharabian Y., Širca S., Smith E.S., Sokhan D., Somov A., Sparveris N., Spata M., Spiesberger H., Spreafico M., Stepanyan S., Stoler P., Strakovsky I., Suleiman R., Suresh M., Sznajder P., Szumila-Vance H., Tadevosyan V., Tadepalli A.S., Thomas A.W., Tiefenback M., Trotta R., Ungaro M., Valente P., Vanderhaeghen M., Venturelli L., Voskanyan H., Voutier E., Wojtsekhowski B., Wood M.H., Wood S., Xie J., Xiong W., Ye Z., Yurov M., Zaunick H.-G., Zhamkochyan S., Zhang J., Zhang S., Zhao S., Zhao Z.W., Zheng X., Zhou J., Zorn C.
Publicada:
1 ene 2021
Categoría:
Nuclear and high energy physics
Resumen:
Positron beams, both polarized and unpolarized, are identified as important ingredients for the experimental programs at the next generation of lepton accelerators. In the context of the hadronic physics program at Jefferson Lab (JLab), positron beams are complementary, even essential, tools for a precise understanding of the electromagnetic structure of nucleons and nuclei, in both the elastic and deep-inelastic regimes. For instance, elastic scattering of polarized and unpolarized electrons and positrons from the nucleon enables a model independent determination of its electromagnetic form factors. Also, the deeply-virtual scattering of polarized and unpolarized electrons and positrons allows unambiguous separation of the different contributions to the cross section of the lepto-production of photons and of lepton-pairs, enabling an accurate determination of the nucleons and nuclei generalized parton distributions, and providing an access to the gravitational form factors of the energy-momentum tensor. Furthermore, positron beams offer the possibility of alternative tests of the Standard Model of particle physics through the search of a dark photon, the precise measurement of electroweak couplings, and the investigation of charged lepton flavor violation. This document discusses the perspectives of an experimental program with high duty-cycle positron beams at JLab. © 2021, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.
Filiaciones:
Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, United States
Hampton University, Hampton, VA 23668, United States
The George Washington University, Washington, DC 20052, United States
Akdeniz Üniversitesi, Konyaalti/Antalya, 07070, Turkey
The Catholic University of America, Washington, DC 20064, United States
Old Dominion University, Norfolk, VA 23529, United States
University of Glasgow, Glasgow, G12 8QQ, United Kingdom
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
A. Alikhanyan National Laboratory, Yerevan Physics Institute, Yerevan, 375036, Armenia
Physics Department, Temple University, Philadelphia, PA 19122-180, United States
The College of William & Mary, Williamsburg, VA 23185, United States
Mississippi State University, Mississippi State, Mississippi, MS 39762, United States
University of Virginia, Charlottesville, VA 22904, United States
INFN, Sezione di Ferrara, Ferrara, 44122, Italy
INFN, Sezione di Genova, Genova, 16146, Italy
INFN, Sezione di Catania, Catania, 95123, Italy
Louisiana Tech University, Ruston, LA 71272, United States
Duquesne University, Pittsburgh, PA 15282, United States
Center for Frontiers in Nuclear Science, Stony Brook University, Stony Brook, NY 11794, United States
Stony Brook University, Stony Brook, NY 11794, United States
RIKEN BNL Research Center, Upton, NY 11973, United States
IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, 91191, France
Università degli Studi di Brescia, Brescia, 25121, Italy
INFN, Sezione di Pavia, Pavia, 27100, Italy
Fairfield University, Fairfield, CT 06824, United States
Università degli Studi di Genova, Genova, 16146, Italy
University of Manitoba, Winnipeg, MB R3T 2N2, Canada
University of New Hampshire, Durham, NH 03824, United States
Universität Gießen, Gießen, 35390, Germany
University of Connecticut, Storrs, CT 06269-3046, United States
Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, 91405, France
Università degli Studi di Ferrara, Ferrara, 44121, Italy
Lamar University, Beaumont, TX 77710, United States
INFN, Sezione di Roma Tor Vergata, Rome, 00133, Italy
Università degli Studi di Roma Tor Vergata, Rome, 00133, Italy
INFN, Laboratori Nazionali di Frascati, Frascati, 00044, Italy
PRISMA+ Cluster of Excellence, Institut für Kernphysik, Johannes Gutenberg Universität, Mainz, 55099, Germany
INFN, Sezione di Torino, Torino, 10125, Italy
Idaho State University, Pocatello, ID 83209, United States
INFN, Sezione di Perugia, Perugia, 06123, Italy
Università degli studi di Perugia, Perugia, 06123, Italy
Duke University, Durham, NC 27708, United States
North Carolina A&T State University, Greensboro, NC 27411, United States
Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, United States
Massachusetts Institute of Technology, Cambridge, MA 02139, United States
Cairo University, Giza, 12613, Egypt
Institute for Nuclear Problems, Belarusian State University, Minsk, 220040, Belarus
Argonne National Laboratory, Lemont, IL 60439, United States
Triangle Universities Nuclear Laboratory, Durham, NC 27708, United States
Virginia Union University, Richmond, VA 23220, United States
Energy Systems, Davis, CA 95616, United States
Ohio University, Athens, OH 45701, United States
University of Colorado, Boulder, CO 80309, United States
University of Sofia, Faculty of Physics, Sofia, 1164, Bulgaria
Fermi National Accelerator Laboratory, Batavia, IL 60510, United States
Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, United States
PRISMA+ Cluster of Excellence, Institut für Physik, Johannes Gutenberg Universität, Mainz, 55099, Germany
The University of North Georgia, Dahlonega, GA 30597, United States
Florida International University, Miami, FL 33199, United States
Università degli Studi dell’Insubria, Como, 22100, Italy
Faculté des Sciences de Monastir, Monastir, Tunisia
Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana, 1000, Slovenia
James Madison University, Harrisonburg, VA 22807, United States
Florida State University, Tallahassee, FL 32306, United States
New Mexico State University, Las Cruces, NM 88003, United States
Università degli Studi di Pavia, Pavia, 27100, Italy
INFN, Sezione di Roma, Rome, 00185, Italy
Sapienza Università di Roma, Rome, 00185, Italy
University of West Florida, Pensacola, FL 32514, United States
National Centre for Nuclear Research (NCBJ), Warsaw, 02-093, Poland
CSSM, Department of Physics, University of Adelaide, Adelaide, SA 5005, Australia
Canisius College, Buffalo, NY 14208, United States
Syracuse University, Syracuse, NY 13244, United States
Tsinghua University, Beijing, 100084, China
Los Alamos National Laboratory, Los Alamos, NM 87545, United States
All Open Access; Green
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