12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region

The CLAS Collaboration

doi:10.1016/j.physletb.2021.136523

¹²C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region

The CLAS Collaboration

Research output: Contribution to journal › Article › peer-review

Abstract

High-momentum configurations of nucleon pairs at short-distance are probed using measurements of the ¹²C(e,e^′p) and ¹²C(e,e^′pN) reactions (where N is either n or p), at high-Q² and x_B>1.1. The data span a missing-momentum range of 300–1000 MeV/c and are predominantly sensitive to the transition region of the strong nuclear interaction from a Tensor to Scalar interaction. The data are well reproduced by theoretical calculations using the Generalized Contact Formalism with both chiral and phenomenological nucleon-nucleon (NN) interaction models. This agreement suggests that the measured high missing-momentum protons up to 1000 MeV/c predominantly belong to short-ranged correlated (SRC) pairs. The measured ¹²C(e,e^′pN) / ¹²C(e,e^′p) and ¹²C(e,e^′pp) / ¹²C(e,e^′pn) cross-section ratios are consistent with a decrease in the fraction of proton-neutron SRC pairs and increase in the fraction of proton-proton SRC pairs with increasing missing momentum. This confirms the transition from an isospin-dependent tensor NN interaction at ∼400 MeV/c to an isospin-independent scalar interaction at high-momentum around ∼800 MeV/c as predicted by theoretical calculation.

Original language	English
Article number	136523
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	820
Early online date	2 Aug 2021
DOIs	https://doi.org/10.1016/j.physletb.2021.136523
Publication status	Published - 10 Sept 2021

Bibliographical note

Funding Information:
We acknowledge the efforts of the staff of the Accelerator and Physics Divisions at Jefferson Lab that made this experiment possible. The analysis presented here was carried out as part of the Jefferson Lab Hall B Data-Mining project supported by the U.S. Department of Energy (DOE). The research was also supported by the National Science Foundation , the PAZY Foundation , the Israel Science Foundation and the United Kingdom's Science and Technology Facilities Council (STFC). The Jefferson Science Associates operates the Thomas Jefferson National Accelerator Facility for the DOE, Office of Science, Office of Nuclear Physics under Contract No. DE-AC05-06OR23177 .

Publisher Copyright:
© 2021 The Author(s)

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10.1016/j.physletb.2021.136523Licence: CC BY

12C(e,e’pN) measurements of short range correlations in the tensor-to-scalar interaction transition region
© 2021 The Author(s).
Final published version, 422 KBLicence: CC BY

Cite this

@article{e8230e810d3b43d0a807895645cb233f,

title = "12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region",

abstract = "High-momentum configurations of nucleon pairs at short-distance are probed using measurements of the 12C(e,e′p) and 12C(e,e′pN) reactions (where N is either n or p), at high-Q2 and xB>1.1. The data span a missing-momentum range of 300–1000 MeV/c and are predominantly sensitive to the transition region of the strong nuclear interaction from a Tensor to Scalar interaction. The data are well reproduced by theoretical calculations using the Generalized Contact Formalism with both chiral and phenomenological nucleon-nucleon (NN) interaction models. This agreement suggests that the measured high missing-momentum protons up to 1000 MeV/c predominantly belong to short-ranged correlated (SRC) pairs. The measured 12C(e,e′pN) / 12C(e,e′p) and 12C(e,e′pp) / 12C(e,e′pn) cross-section ratios are consistent with a decrease in the fraction of proton-neutron SRC pairs and increase in the fraction of proton-proton SRC pairs with increasing missing momentum. This confirms the transition from an isospin-dependent tensor NN interaction at ∼400 MeV/c to an isospin-independent scalar interaction at high-momentum around ∼800 MeV/c as predicted by theoretical calculation.",

author = "{The CLAS Collaboration} and I. Korover and Pybus, {J. R.} and A. Schmidt and F. Hauenstein and M. Duer and O. Hen and E. Piasetzky and Weinstein, {L. B.} and Higinbotham, {D. W.} and S. Adhikari and K. Adhikari and Amaryan, {M. J.} and Giovanni Angelini and H. Atac and L. Barion and M. Battaglieri and A. Beck and I. Bedlinskiy and Fatiha Benmokhtar and A. Bianconi and Biselli, {A. S.} and S. Boiarinov and Briscoe, {W. J.} and Brooks, {W. K.} and D. Bulumulla and Burkert, {V. D.} and Carman, {D. S.} and A. Celentano and P. Chatagnon and T. Chetry and L. Clark and B. Clary and Cole, {P. L.} and M. Contalbrigo and V. Crede and R. Cruz-Torres and A. D'Angelo and {De Vita}, R. and M. Defurne and A. Denniston and K. Hicks and D. Jenkins and Tan, {J. A.} and T. Wang and D. Watts and X. Wei and Wood, {M. H.} and N. Zachariou and J. Zhang and X. Zheng",

note = "Funding Information: We acknowledge the efforts of the staff of the Accelerator and Physics Divisions at Jefferson Lab that made this experiment possible. The analysis presented here was carried out as part of the Jefferson Lab Hall B Data-Mining project supported by the U.S. Department of Energy (DOE). The research was also supported by the National Science Foundation , the PAZY Foundation , the Israel Science Foundation and the United Kingdom's Science and Technology Facilities Council (STFC). The Jefferson Science Associates operates the Thomas Jefferson National Accelerator Facility for the DOE, Office of Science, Office of Nuclear Physics under Contract No. DE-AC05-06OR23177 . Publisher Copyright: {\textcopyright} 2021 The Author(s)",

year = "2021",

month = sep,

day = "10",

doi = "10.1016/j.physletb.2021.136523",

language = "English",

volume = "820",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

}

TY - JOUR

T1 - 12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region

AU - The CLAS Collaboration

AU - Korover, I.

AU - Pybus, J. R.

AU - Schmidt, A.

AU - Hauenstein, F.

AU - Duer, M.

AU - Hen, O.

AU - Piasetzky, E.

AU - Weinstein, L. B.

AU - Higinbotham, D. W.

AU - Adhikari, S.

AU - Adhikari, K.

AU - Amaryan, M. J.

AU - Angelini, Giovanni

AU - Atac, H.

AU - Barion, L.

AU - Battaglieri, M.

AU - Beck, A.

AU - Bedlinskiy, I.

AU - Benmokhtar, Fatiha

AU - Bianconi, A.

AU - Biselli, A. S.

AU - Boiarinov, S.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Bulumulla, D.

AU - Burkert, V. D.

AU - Carman, D. S.

AU - Celentano, A.

AU - Chatagnon, P.

AU - Chetry, T.

AU - Clark, L.

AU - Clary, B.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Crede, V.

AU - Cruz-Torres, R.

AU - D'Angelo, A.

AU - De Vita, R.

AU - Defurne, M.

AU - Denniston, A.

AU - Hicks, K.

AU - Jenkins, D.

AU - Tan, J. A.

AU - Wang, T.

AU - Watts, D.

AU - Wei, X.

AU - Wood, M. H.

AU - Zachariou, N.

AU - Zhang, J.

AU - Zheng, X.

N1 - Funding Information: We acknowledge the efforts of the staff of the Accelerator and Physics Divisions at Jefferson Lab that made this experiment possible. The analysis presented here was carried out as part of the Jefferson Lab Hall B Data-Mining project supported by the U.S. Department of Energy (DOE). The research was also supported by the National Science Foundation , the PAZY Foundation , the Israel Science Foundation and the United Kingdom's Science and Technology Facilities Council (STFC). The Jefferson Science Associates operates the Thomas Jefferson National Accelerator Facility for the DOE, Office of Science, Office of Nuclear Physics under Contract No. DE-AC05-06OR23177 . Publisher Copyright: © 2021 The Author(s)

PY - 2021/9/10

Y1 - 2021/9/10

N2 - High-momentum configurations of nucleon pairs at short-distance are probed using measurements of the 12C(e,e′p) and 12C(e,e′pN) reactions (where N is either n or p), at high-Q2 and xB>1.1. The data span a missing-momentum range of 300–1000 MeV/c and are predominantly sensitive to the transition region of the strong nuclear interaction from a Tensor to Scalar interaction. The data are well reproduced by theoretical calculations using the Generalized Contact Formalism with both chiral and phenomenological nucleon-nucleon (NN) interaction models. This agreement suggests that the measured high missing-momentum protons up to 1000 MeV/c predominantly belong to short-ranged correlated (SRC) pairs. The measured 12C(e,e′pN) / 12C(e,e′p) and 12C(e,e′pp) / 12C(e,e′pn) cross-section ratios are consistent with a decrease in the fraction of proton-neutron SRC pairs and increase in the fraction of proton-proton SRC pairs with increasing missing momentum. This confirms the transition from an isospin-dependent tensor NN interaction at ∼400 MeV/c to an isospin-independent scalar interaction at high-momentum around ∼800 MeV/c as predicted by theoretical calculation.

AB - High-momentum configurations of nucleon pairs at short-distance are probed using measurements of the 12C(e,e′p) and 12C(e,e′pN) reactions (where N is either n or p), at high-Q2 and xB>1.1. The data span a missing-momentum range of 300–1000 MeV/c and are predominantly sensitive to the transition region of the strong nuclear interaction from a Tensor to Scalar interaction. The data are well reproduced by theoretical calculations using the Generalized Contact Formalism with both chiral and phenomenological nucleon-nucleon (NN) interaction models. This agreement suggests that the measured high missing-momentum protons up to 1000 MeV/c predominantly belong to short-ranged correlated (SRC) pairs. The measured 12C(e,e′pN) / 12C(e,e′p) and 12C(e,e′pp) / 12C(e,e′pn) cross-section ratios are consistent with a decrease in the fraction of proton-neutron SRC pairs and increase in the fraction of proton-proton SRC pairs with increasing missing momentum. This confirms the transition from an isospin-dependent tensor NN interaction at ∼400 MeV/c to an isospin-independent scalar interaction at high-momentum around ∼800 MeV/c as predicted by theoretical calculation.

UR - http://www.scopus.com/inward/record.url?scp=85111600744&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2021.136523

DO - 10.1016/j.physletb.2021.136523

M3 - Article

AN - SCOPUS:85111600744

SN - 0370-2693

VL - 820

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 136523

ER -

¹²C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region

Abstract

Bibliographical note

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Other files and links

Nuclear Physics Consolidated Grant 2021-2024

Cite this

12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region

Abstract

Bibliographical note

Access to Document

Other files and links

Projects

Nuclear Physics Consolidated Grant 2021-2024

Cite this

¹²C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region