Measurement of double-polarization asymmetries in the quasielastic (3)He[→](e[→],e(')d) process

M Mihovilovič¹, G Jin², E Long³, Y-W Zhang⁴, K Allada⁵, B Anderson³, J R M Annand⁶, T Averett⁷, W Boeglin⁸, P Bradshaw⁷, A Camsonne⁵, M Canan⁹, G D Cates², C Chen¹⁰, J P Chen⁵, E Chudakov⁵, R De Leo¹¹, X Deng², A Deltuva¹², A Deur⁵, C Dutta¹³, L El Fassi⁴, D Flay¹⁴, S Frullani¹⁵, F Garibaldi¹⁵, H Gao¹⁶, S Gilad¹⁷, R Gilman⁴, O Glamazdin¹⁸, J Golak¹⁹, S Golge⁹, J Gomez⁵, O Hansen⁵, D W Higinbotham⁵, T Holmstrom²⁰, J Huang¹⁷, H Ibrahim²¹, C W de Jager⁵, E Jensen²², X Jiang²³, M Jones⁵, H Kang²⁴, J Katich⁷, H P Khanal⁸, A Kievsky²⁵, P King²⁶, W Korsch¹³, J LeRose⁵, R Lindgren², H-J Lu²⁷, W Luo²⁸, L E Marcucci²⁹, P Markowitz⁸, M Meziane⁷, R Michaels⁵, B Moffit⁵, P Monaghan¹⁰, N Muangma¹⁷, S Nanda⁵, B E Norum², K Pan¹⁷, D Parno³⁰, E Piasetzky³¹, M Posik¹⁴, V Punjabi³², A J R Puckett²³, X Qian¹⁶, Y Qiang⁵, X Qui²⁸, S Riordan², A Saha⁵, P U Sauer³³, B Sawatzky⁵, R Schiavilla³⁴, B Schoenrock³⁵, M Shabestari², A Shahinyan³⁶, S Širca³⁷, R Skibiński¹⁹, J St John²⁰, R Subedi³⁸, V Sulkosky¹⁷, W A Tobias², W Tireman³⁵, G M Urciuoli¹⁵, M Viviani²⁵, D Wang², K Wang², Y Wang³⁹, J Watson⁵, B Wojtsekhowski⁵, H Witała¹⁹, Z Ye¹⁰, X Zhan¹⁷, Y Zhang²⁸, X Zheng², B Zhao⁷, L Zhu¹⁰; (Jefferson Lab Hall A Collaboration)

Affiliations

¹ Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia.
² University of Virginia, Charlottesville, Virginia 22908, USA.
³ Kent State University, Kent, Ohio 44242, USA.
⁴ Rutgers University, New Brunswick, New Jersey 08901, USA.
⁵ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
⁶ Glasgow University, Glasgow G12 8QQ, Scotland, United Kingdom.
⁷ The College of William and Mary, Williamsburg, Virginia 23187, USA.
⁸ Florida International University, Miami, Florida 33181, USA.
⁹ Old Dominion University, Norfolk, Virginia 23529, USA.
¹⁰ Hampton University, Hampton, Virginia 23669, USA.
¹¹ Università degli studi di Bari Aldo Moro, I-70121 Bari, Italy.
¹² Center for Nuclear Physics, University of Lisbon, P-1649-003 Lisbon, Portugal and Institute for Theoretical Physics and Astronomy, Vilnius University, LT-01108 Vilnius, Lithuania.
¹³ University of Kentucky, Lexington, Kentucky 40506, USA.
¹⁴ Temple University, Philadelphia, Pennsylvania 19122, USA.
¹⁵ Istituto Nazionale Di Fisica Nucleare, INFN/Sanita, Roma, Italy.
¹⁶ Duke University, Durham, North Carolina 27708, USA.
¹⁷ Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
¹⁸ Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine.
¹⁹ M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059 Kraków, Poland.
²⁰ Longwood College, Farmville, Virginia 23909, USA.
²¹ Cairo University, Cairo, Giza 12613, Egypt.
²² Christopher Newport University, Newport News, Virginia 23606, USA.
²³ Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
²⁴ Seoul National University, Seoul, Korea.
²⁵ INFN-Pisa, I-56127 Pisa, Italy.
²⁶ Ohio University, Athens, Ohio 45701, USA.
²⁷ Huangshan University, People's Republic of China.
²⁸ Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China.
²⁹ Physics Department, Pisa University, I-56127 Pisa, Italy.
³⁰ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
³¹ Tel Aviv University, Tel Aviv 69978, Israel.
³² Norfolk State University, Norfolk, Virginia 23504, USA.
³³ Institute for Theoretical Physics, University of Hannover, D-30167 Hannover, Germany.
³⁴ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Old Dominion University, Norfolk, Virginia 23529, USA.
³⁵ Northern Michigan University, Marquette, Michigan 49855, USA.
³⁶ Yerevan Physics Institute, Yerevan, Armenia.
³⁷ Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia and University of Ljubljana, SI-1000 Ljubljana, Slovenia.
³⁸ George Washington University, Washington, D.C. 20052, USA.
³⁹ University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.

PMID: 25526124
DOI: 10.1103/PhysRevLett.113.232505

Measurement of double-polarization asymmetries in the quasielastic (3)He[→](e[→],e(')d) process

M Mihovilovič et al. Phys Rev Lett. 2014.

. 2014 Dec 5;113(23):232505.

doi: 10.1103/PhysRevLett.113.232505. Epub 2014 Dec 5.

Authors

Affiliations

¹ Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia.
² University of Virginia, Charlottesville, Virginia 22908, USA.
³ Kent State University, Kent, Ohio 44242, USA.
⁴ Rutgers University, New Brunswick, New Jersey 08901, USA.
⁵ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
⁶ Glasgow University, Glasgow G12 8QQ, Scotland, United Kingdom.
⁷ The College of William and Mary, Williamsburg, Virginia 23187, USA.
⁸ Florida International University, Miami, Florida 33181, USA.
⁹ Old Dominion University, Norfolk, Virginia 23529, USA.
¹⁰ Hampton University, Hampton, Virginia 23669, USA.
¹¹ Università degli studi di Bari Aldo Moro, I-70121 Bari, Italy.
¹² Center for Nuclear Physics, University of Lisbon, P-1649-003 Lisbon, Portugal and Institute for Theoretical Physics and Astronomy, Vilnius University, LT-01108 Vilnius, Lithuania.
¹³ University of Kentucky, Lexington, Kentucky 40506, USA.
¹⁴ Temple University, Philadelphia, Pennsylvania 19122, USA.
¹⁵ Istituto Nazionale Di Fisica Nucleare, INFN/Sanita, Roma, Italy.
¹⁶ Duke University, Durham, North Carolina 27708, USA.
¹⁷ Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
¹⁸ Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine.
¹⁹ M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059 Kraków, Poland.
²⁰ Longwood College, Farmville, Virginia 23909, USA.
²¹ Cairo University, Cairo, Giza 12613, Egypt.
²² Christopher Newport University, Newport News, Virginia 23606, USA.
²³ Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
²⁴ Seoul National University, Seoul, Korea.
²⁵ INFN-Pisa, I-56127 Pisa, Italy.
²⁶ Ohio University, Athens, Ohio 45701, USA.
²⁷ Huangshan University, People's Republic of China.
²⁸ Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China.
²⁹ Physics Department, Pisa University, I-56127 Pisa, Italy.
³⁰ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
³¹ Tel Aviv University, Tel Aviv 69978, Israel.
³² Norfolk State University, Norfolk, Virginia 23504, USA.
³³ Institute for Theoretical Physics, University of Hannover, D-30167 Hannover, Germany.
³⁴ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Old Dominion University, Norfolk, Virginia 23529, USA.
³⁵ Northern Michigan University, Marquette, Michigan 49855, USA.
³⁶ Yerevan Physics Institute, Yerevan, Armenia.
³⁷ Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia and University of Ljubljana, SI-1000 Ljubljana, Slovenia.
³⁸ George Washington University, Washington, D.C. 20052, USA.
³⁹ University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.

PMID: 25526124
DOI: 10.1103/PhysRevLett.113.232505

Abstract

We present a precise measurement of double-polarization asymmetries in the ^{3}He[over →](e[over →],e^{'}d) reaction. This particular process is a uniquely sensitive probe of hadron dynamics in ^{3}He and the structure of the underlying electromagnetic currents. The measurements have been performed in and around quasielastic kinematics at Q^{2}=0.25(GeV/c)^{2} for missing momenta up to 270 MeV/c. The asymmetries are in fair agreement with the state-of-the-art calculations in terms of their functional dependencies on p_{m} and ω, but are systematically offset. Beyond the region of the quasielastic peak, the discrepancies become even more pronounced. Thus, our measurements have been able to reveal deficiencies in the most sophisticated calculations of the three-body nuclear system, and indicate that further refinement in the treatment of their two-and/or three-body dynamics is required.

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Measurement of double-polarization asymmetries in the quasielastic (3)He[→](e[→],e(')d) process

Affiliations

Measurement of double-polarization asymmetries in the quasielastic (3)He[→](e[→],e(')d) process

Authors

Affiliations

Abstract

LinkOut - more resources

Full Text Sources

Other Literature Sources