Novel Measurement of the Neutron Magnetic Form Factor from A=3 Mirror Nuclei

S N Santiesteban¹, S Li^{1

2}, D Abrams³, S Alsalmi^{4

5}, D Androic⁶, K Aniol⁷, J Arrington^{2

8}, T Averett⁹, C Ayerbe Gayoso⁹, J Bane¹⁰, S Barcus⁹, J Barrow^{10

11}, A Beck¹¹, V Bellini¹², H Bhatt¹³, D Bhetuwal¹³, D Biswas¹⁴, A Camsonne¹⁵, J Castellanos¹⁶, J Chen⁹, J-P Chen¹⁵, D Chrisman¹⁷, M E Christy^{14

15}, C Clarke¹⁸, S Covrig¹⁵, R Cruz-Torres^{2

11}, D Day³, D Dutta¹³, E Fuchey¹⁹, C Gal³, F Garibaldi²⁰, T N Gautam¹⁴, T Gogami²¹, J Gomez¹⁵, P Guèye^{14

17}, T J Hague⁴, J O Hansen¹⁵, F Hauenstein²², W Henry²³, D W Higinbotham¹⁵, R J Holt⁸, C Hyde²², K Itabashi²¹, M Kaneta²¹, A Karki¹³, A T Katramatou⁴, C E Keppel¹⁵, P M King²⁴, L Kurbany¹, T Kutz¹⁸, N Lashley-Colthirst¹⁴, W B Li⁹, H Liu²⁵, N Liyanage³, E Long¹, A Lovato^{26

27

28}, J Mammei²⁹, P Markowitz¹⁶, R E McClellan¹⁵, F Meddi²⁰, D Meekins¹⁵, R Michaels¹⁵, M Mihovilovič^{30

31

32}, A Moyer³³, S Nagao²¹, D Nguyen³, M Nycz⁴, M Olson³⁴, L Ou¹¹, V Owen⁹, C Palatchi³, B Pandey¹⁴, A Papadopoulou¹¹, S Park¹⁸, T Petkovic⁶, S Premathilake³, V Punjabi³⁵, R D Ransome³⁶, P E Reimer⁸, J Reinhold¹⁶, S Riordan⁸, N Rocco³⁷, V M Rodriguez³⁸, A Schmidt¹¹, B Schmookler¹¹, E P Segarra¹¹, A Shahinyan³⁹, S Širca^{30

31}, K Slifer¹, P Solvignon¹, T Su⁴, R Suleiman¹⁵, L Tang¹⁵, Y Tian⁴⁰, W Tireman⁴¹, F Tortorici¹², Y Toyama²¹, K Uehara²¹, G M Urciuoli²⁰, D Votaw¹⁷, J Williamson⁴², B Wojtsekhowski¹⁵, S Wood¹⁵, Z H Ye^{8

43}, J Zhang³, X Zheng³; Jefferson Lab Hall A Collaboration

Affiliations

¹ University of New Hampshire, Durham, New Hampshire 03824, USA.
² Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
³ University of Virginia, Charlottesville, Virginia 22904, USA.
⁴ Kent State University, Kent, Ohio 44240, USA.
⁵ King Saud University, Riyadh 11451, Kingdom of Saudi Arabia.
⁶ University of Zagreb, Zagreb, Croatia.
⁷ California State University, Los Angeles, California 90032, USA.
⁸ Argonne National Laboratory, Lemont, Illinois 60439, USA.
⁹ William and Mary, Williamsburg, Virginia 23185, USA.
¹⁰ University of Tennessee, Knoxville, Tennessee 37966, USA.
¹¹ Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
¹² INFN Sezione di Catania, Italy.
¹³ Mississippi State University, Mississippi State, Mississippi 39762, USA.
¹⁴ Hampton University, Hampton, Virginia 23669, USA.
¹⁵ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
¹⁶ Florida International University, Miami, Florida 33199, USA.
¹⁷ Michigan State University, East Lansing, Michigan 48824, USA.
¹⁸ Stony Brook, State University of New York, New York 11794, USA.
¹⁹ University of Connecticut, Storrs, Connecticut 06269, USA.
²⁰ INFN, Rome, Italy.
²¹ Tohoku University, Sendai, Japan.
²² Old Dominion University, Norfolk, Virginia 23529, USA.
²³ Temple University, Philadelphia, Pennsylvania 19122, USA.
²⁴ Ohio University, Athens, Ohio 45701, USA.
²⁵ Columbia University, New York, New York 10027, USA.
²⁶ Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
²⁷ Computational Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
²⁸ INFN-TIFPA Trento Institute for Fundamental Physics and Applications, 38123 Trento, Italy.
²⁹ University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
³⁰ Jožef Stefan Institute, 1000 Ljubljana, Slovenia.
³¹ Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia.
³² Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, DE-55128 Mainz, Germany.
³³ Christopher Newport University, Newport News, Virginia 23606, USA.
³⁴ Saint Norbert College, De Pere, Wisconsin 54115, USA.
³⁵ Norfolk State University, Norfolk, Virginia 23529, USA.
³⁶ Rutgers University, New Brunswick, New Jersey 08854, USA.
³⁷ Theoretical Physics Department, Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.
³⁸ División de Ciencias y Tecnología, Universidad Ana G. Méndez, Recinto de Cupey, San Juan 00926, Puerto Rico.
³⁹ Yerevan Physics Institute, Yerevan, Armenia.
⁴⁰ Syracuse University, Syracuse, New York 13244, USA.
⁴¹ Northern Michigan University, Marquette, Michigan 49855, USA.
⁴² University of Glasgow, Glasgow, G12 8QQ Scotland, United Kingdom.
⁴³ Tsinghua University, Beijing, China.

PMID: 38701469
DOI: 10.1103/PhysRevLett.132.162501

Novel Measurement of the Neutron Magnetic Form Factor from A=3 Mirror Nuclei

S N Santiesteban et al. Phys Rev Lett. 2024.

. 2024 Apr 19;132(16):162501.

doi: 10.1103/PhysRevLett.132.162501.

Authors

Affiliations

¹ University of New Hampshire, Durham, New Hampshire 03824, USA.
² Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
³ University of Virginia, Charlottesville, Virginia 22904, USA.
⁴ Kent State University, Kent, Ohio 44240, USA.
⁵ King Saud University, Riyadh 11451, Kingdom of Saudi Arabia.
⁶ University of Zagreb, Zagreb, Croatia.
⁷ California State University, Los Angeles, California 90032, USA.
⁸ Argonne National Laboratory, Lemont, Illinois 60439, USA.
⁹ William and Mary, Williamsburg, Virginia 23185, USA.
¹⁰ University of Tennessee, Knoxville, Tennessee 37966, USA.
¹¹ Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
¹² INFN Sezione di Catania, Italy.
¹³ Mississippi State University, Mississippi State, Mississippi 39762, USA.
¹⁴ Hampton University, Hampton, Virginia 23669, USA.
¹⁵ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
¹⁶ Florida International University, Miami, Florida 33199, USA.
¹⁷ Michigan State University, East Lansing, Michigan 48824, USA.
¹⁸ Stony Brook, State University of New York, New York 11794, USA.
¹⁹ University of Connecticut, Storrs, Connecticut 06269, USA.
²⁰ INFN, Rome, Italy.
²¹ Tohoku University, Sendai, Japan.
²² Old Dominion University, Norfolk, Virginia 23529, USA.
²³ Temple University, Philadelphia, Pennsylvania 19122, USA.
²⁴ Ohio University, Athens, Ohio 45701, USA.
²⁵ Columbia University, New York, New York 10027, USA.
²⁶ Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
²⁷ Computational Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
²⁸ INFN-TIFPA Trento Institute for Fundamental Physics and Applications, 38123 Trento, Italy.
²⁹ University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
³⁰ Jožef Stefan Institute, 1000 Ljubljana, Slovenia.
³¹ Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia.
³² Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, DE-55128 Mainz, Germany.
³³ Christopher Newport University, Newport News, Virginia 23606, USA.
³⁴ Saint Norbert College, De Pere, Wisconsin 54115, USA.
³⁵ Norfolk State University, Norfolk, Virginia 23529, USA.
³⁶ Rutgers University, New Brunswick, New Jersey 08854, USA.
³⁷ Theoretical Physics Department, Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.
³⁸ División de Ciencias y Tecnología, Universidad Ana G. Méndez, Recinto de Cupey, San Juan 00926, Puerto Rico.
³⁹ Yerevan Physics Institute, Yerevan, Armenia.
⁴⁰ Syracuse University, Syracuse, New York 13244, USA.
⁴¹ Northern Michigan University, Marquette, Michigan 49855, USA.
⁴² University of Glasgow, Glasgow, G12 8QQ Scotland, United Kingdom.
⁴³ Tsinghua University, Beijing, China.

PMID: 38701469
DOI: 10.1103/PhysRevLett.132.162501

Abstract

The electromagnetic form factors of the proton and neutron encode information on the spatial structure of their charge and magnetization distributions. While measurements of the proton are relatively straightforward, the lack of a free neutron target makes measurements of the neutron's electromagnetic structure more challenging and more sensitive to experimental or model-dependent uncertainties. Various experiments have attempted to extract the neutron form factors from scattering from the neutron in deuterium, with different techniques providing different, and sometimes large, systematic uncertainties. We present results from a novel measurement of the neutron magnetic form factor using quasielastic scattering from the mirror nuclei ^{3}H and ^{3}He, where the nuclear effects are larger than for deuterium but expected to largely cancel in the cross-section ratios. We extracted values of the neutron magnetic form factor for low-to-modest momentum transfer, 0.6<Q^{2}<2.9 GeV^{2}, where existing measurements give inconsistent results. The precision and Q^{2} range of these data allow for a better understanding of the current world's data and suggest a path toward further improvement of our overall understanding of the neutron's magnetic form factor.

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Novel Measurement of the Neutron Magnetic Form Factor from A=3 Mirror Nuclei

Affiliations

Novel Measurement of the Neutron Magnetic Form Factor from A=3 Mirror Nuclei

Authors

Affiliations

Abstract