12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region
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 r...
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Format: | Article |
Language: | English |
Published: |
Elsevier
2021-09-01
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Series: | Physics Letters B |
Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321004639 |
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English |
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DOAJ |
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I. Korover J.R. Pybus A. Schmidt F. Hauenstein M. Duer O. Hen E. Piasetzky L.B. Weinstein D.W. Higinbotham S. Adhikari K. Adhikari M.J. Amaryan Giovanni Angelini H. Atac L. Barion M. Battaglieri A. Beck I. Bedlinskiy Fatiha Benmokhtar A. Bianconi A.S. Biselli S. Boiarinov W.J. Briscoe W.K. Brooks D. Bulumulla V.D. Burkert D.S. Carman A. Celentano P. Chatagnon T. Chetry L. Clark B. Clary P.L. Cole M. Contalbrigo V. Crede R. Cruz-Torres A. D'Angelo R. De Vita M. Defurne A. Denniston A. Deur S. Diehl C. Djalali R. Dupre H. Egiyan M. Ehrhart A. El Alaoui L. El Fassi L. Elouadrhiri P. Eugenio R. Fersch A. Filippi T. Forest G. Gavalian F.X. Girod E. Golovatch R.W. Gothe K.A. Griffioen M. Guidal K. Hafidi H. Hakobyan N. Harrison M. Hattawy T.B. Hayward D. Heddle K. Hicks M. Holtrop Y. Ilieva D.G. Ireland E.L. Isupov D. Jenkins H.S. Jo K. Joo S. Joosten D. Keller M. Khachatryan A. Khanal M. Khandaker A. Kim C.W. Kim F.J. Klein V. Kubarovsky L. Lanza M. Leali P. Lenisa K. Livingston V. Lucherini I.J.D. MacGregor D. Marchand N. Markov L. Marsicano V. Mascagna B. McKinnon S. Mey-Tal Beck T. Mineeva M. Mirazita A. Movsisyan C. Munoz Camacho B. Mustapha P. Nadel-Turonski K. Neupane G. Niculescu M. Osipenko A.I. Ostrovidov M. Paolone L.L. Pappalardo R. Paremuzyan E. Pasyuk W. Phelps O. Pogorelko J.W. Price Y. Prok D. Protopopescu B.A. Raue M. Ripani J. Ritman A. Rizzo G. Rosner J. Rowley F. Sabatié C. Salgado R.A. Schumacher E.P. Segarra Y.G. Sharabian U. Shrestha D. Sokhan O. Soto N. Sparveris S. Stepanyan I.I. Strakovsky S. Strauch J.A. Tan N. Tyler M. Ungaro L. Venturelli H. Voskanyan E. Voutier T. Wang D. Watts X. Wei M.H. Wood N. Zachariou J. Zhang Z.W. Zhao X. Zheng |
spellingShingle |
I. Korover J.R. Pybus A. Schmidt F. Hauenstein M. Duer O. Hen E. Piasetzky L.B. Weinstein D.W. Higinbotham S. Adhikari K. Adhikari M.J. Amaryan Giovanni Angelini H. Atac L. Barion M. Battaglieri A. Beck I. Bedlinskiy Fatiha Benmokhtar A. Bianconi A.S. Biselli S. Boiarinov W.J. Briscoe W.K. Brooks D. Bulumulla V.D. Burkert D.S. Carman A. Celentano P. Chatagnon T. Chetry L. Clark B. Clary P.L. Cole M. Contalbrigo V. Crede R. Cruz-Torres A. D'Angelo R. De Vita M. Defurne A. Denniston A. Deur S. Diehl C. Djalali R. Dupre H. Egiyan M. Ehrhart A. El Alaoui L. El Fassi L. Elouadrhiri P. Eugenio R. Fersch A. Filippi T. Forest G. Gavalian F.X. Girod E. Golovatch R.W. Gothe K.A. Griffioen M. Guidal K. Hafidi H. Hakobyan N. Harrison M. Hattawy T.B. Hayward D. Heddle K. Hicks M. Holtrop Y. Ilieva D.G. Ireland E.L. Isupov D. Jenkins H.S. Jo K. Joo S. Joosten D. Keller M. Khachatryan A. Khanal M. Khandaker A. Kim C.W. Kim F.J. Klein V. Kubarovsky L. Lanza M. Leali P. Lenisa K. Livingston V. Lucherini I.J.D. MacGregor D. Marchand N. Markov L. Marsicano V. Mascagna B. McKinnon S. Mey-Tal Beck T. Mineeva M. Mirazita A. Movsisyan C. Munoz Camacho B. Mustapha P. Nadel-Turonski K. Neupane G. Niculescu M. Osipenko A.I. Ostrovidov M. Paolone L.L. Pappalardo R. Paremuzyan E. Pasyuk W. Phelps O. Pogorelko J.W. Price Y. Prok D. Protopopescu B.A. Raue M. Ripani J. Ritman A. Rizzo G. Rosner J. Rowley F. Sabatié C. Salgado R.A. Schumacher E.P. Segarra Y.G. Sharabian U. Shrestha D. Sokhan O. Soto N. Sparveris S. Stepanyan I.I. Strakovsky S. Strauch J.A. Tan N. Tyler M. Ungaro L. Venturelli H. Voskanyan E. Voutier T. Wang D. Watts X. Wei M.H. Wood N. Zachariou J. Zhang Z.W. Zhao X. Zheng 12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region Physics Letters B |
author_facet |
I. Korover J.R. Pybus A. Schmidt F. Hauenstein M. Duer O. Hen E. Piasetzky L.B. Weinstein D.W. Higinbotham S. Adhikari K. Adhikari M.J. Amaryan Giovanni Angelini H. Atac L. Barion M. Battaglieri A. Beck I. Bedlinskiy Fatiha Benmokhtar A. Bianconi A.S. Biselli S. Boiarinov W.J. Briscoe W.K. Brooks D. Bulumulla V.D. Burkert D.S. Carman A. Celentano P. Chatagnon T. Chetry L. Clark B. Clary P.L. Cole M. Contalbrigo V. Crede R. Cruz-Torres A. D'Angelo R. De Vita M. Defurne A. Denniston A. Deur S. Diehl C. Djalali R. Dupre H. Egiyan M. Ehrhart A. El Alaoui L. El Fassi L. Elouadrhiri P. Eugenio R. Fersch A. Filippi T. Forest G. Gavalian F.X. Girod E. Golovatch R.W. Gothe K.A. Griffioen M. Guidal K. Hafidi H. Hakobyan N. Harrison M. Hattawy T.B. Hayward D. Heddle K. Hicks M. Holtrop Y. Ilieva D.G. Ireland E.L. Isupov D. Jenkins H.S. Jo K. Joo S. Joosten D. Keller M. Khachatryan A. Khanal M. Khandaker A. Kim C.W. Kim F.J. Klein V. Kubarovsky L. Lanza M. Leali P. Lenisa K. Livingston V. Lucherini I.J.D. MacGregor D. Marchand N. Markov L. Marsicano V. Mascagna B. McKinnon S. Mey-Tal Beck T. Mineeva M. Mirazita A. Movsisyan C. Munoz Camacho B. Mustapha P. Nadel-Turonski K. Neupane G. Niculescu M. Osipenko A.I. Ostrovidov M. Paolone L.L. Pappalardo R. Paremuzyan E. Pasyuk W. Phelps O. Pogorelko J.W. Price Y. Prok D. Protopopescu B.A. Raue M. Ripani J. Ritman A. Rizzo G. Rosner J. Rowley F. Sabatié C. Salgado R.A. Schumacher E.P. Segarra Y.G. Sharabian U. Shrestha D. Sokhan O. Soto N. Sparveris S. Stepanyan I.I. Strakovsky S. Strauch J.A. Tan N. Tyler M. Ungaro L. Venturelli H. Voskanyan E. Voutier T. Wang D. Watts X. Wei M.H. Wood N. Zachariou J. Zhang Z.W. Zhao X. Zheng |
author_sort |
I. Korover |
title |
12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region |
title_short |
12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region |
title_full |
12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region |
title_fullStr |
12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region |
title_full_unstemmed |
12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region |
title_sort |
12c(e,e'pn) measurements of short range correlations in the tensor-to-scalar interaction transition region |
publisher |
Elsevier |
series |
Physics Letters B |
issn |
0370-2693 |
publishDate |
2021-09-01 |
description |
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. |
url |
http://www.sciencedirect.com/science/article/pii/S0370269321004639 |
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doaj-9acfb882a1c64601ad2bb217c1de5f962021-10-09T04:35:57ZengElsevierPhysics Letters B0370-26932021-09-0182013652312C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition regionI. Korover0J.R. Pybus1A. Schmidt2F. Hauenstein3M. Duer4O. Hen5E. Piasetzky6L.B. Weinstein7D.W. Higinbotham8S. Adhikari9K. Adhikari10M.J. Amaryan11Giovanni Angelini12H. Atac13L. Barion14M. Battaglieri15A. Beck16I. Bedlinskiy17Fatiha Benmokhtar18A. Bianconi19A.S. Biselli20S. Boiarinov21W.J. Briscoe22W.K. Brooks23D. Bulumulla24V.D. Burkert25D.S. Carman26A. Celentano27P. Chatagnon28T. Chetry29L. Clark30B. Clary31P.L. Cole32M. Contalbrigo33V. Crede34R. Cruz-Torres35A. D'Angelo36R. De Vita37M. Defurne38A. Denniston39A. Deur40S. Diehl41C. Djalali42R. Dupre43H. Egiyan44M. Ehrhart45A. El Alaoui46L. El Fassi47L. Elouadrhiri48P. Eugenio49R. Fersch50A. Filippi51T. Forest52G. Gavalian53F.X. Girod54E. Golovatch55R.W. Gothe56K.A. Griffioen57M. Guidal58K. Hafidi59H. Hakobyan60N. Harrison61M. Hattawy62T.B. Hayward63D. Heddle64K. Hicks65M. Holtrop66Y. Ilieva67D.G. Ireland68E.L. Isupov69D. Jenkins70H.S. Jo71K. Joo72S. Joosten73D. Keller74M. Khachatryan75A. Khanal76M. Khandaker77A. Kim78C.W. Kim79F.J. Klein80V. Kubarovsky81L. Lanza82M. Leali83P. Lenisa84K. Livingston85V. Lucherini86I.J.D. MacGregor87D. Marchand88N. Markov89L. Marsicano90V. Mascagna91B. McKinnon92S. Mey-Tal Beck93T. Mineeva94M. Mirazita95A. Movsisyan96C. Munoz Camacho97B. Mustapha98P. Nadel-Turonski99K. Neupane100G. Niculescu101M. Osipenko102A.I. Ostrovidov103M. Paolone104L.L. Pappalardo105R. Paremuzyan106E. Pasyuk107W. Phelps108O. Pogorelko109J.W. Price110Y. Prok111D. Protopopescu112B.A. Raue113M. Ripani114J. Ritman115A. Rizzo116G. Rosner117J. Rowley118F. Sabatié119C. Salgado120R.A. Schumacher121E.P. Segarra122Y.G. Sharabian123U. Shrestha124D. Sokhan125O. Soto126N. Sparveris127S. Stepanyan128I.I. Strakovsky129S. Strauch130J.A. Tan131N. Tyler132M. Ungaro133L. Venturelli134H. Voskanyan135E. Voutier136T. Wang137D. Watts138X. Wei139M.H. Wood140N. Zachariou141J. Zhang142Z.W. Zhao143X. Zheng144Nuclear Research Center Negev, Be'er Sheva 84190, IsraelMassachusetts Institute of Technology, Cambridge, MA 02139, USAThe George Washington University, Washington, DC, 20052, USA; Massachusetts Institute of Technology, Cambridge, MA 02139, USAMassachusetts Institute of Technology, Cambridge, MA 02139, USA; Old Dominion University, Norfolk, VA 23529, USASchool of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, IsraelMassachusetts Institute of Technology, Cambridge, MA 02139, USA; Corresponding author.School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, IsraelOld Dominion University, Norfolk, VA 23529, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAFlorida International University, Miami, FL 33199, USAMississippi State University, Mississippi State, MS 39762-5167, USAOld Dominion University, Norfolk, VA 23529, USAThe George Washington University, Washington, DC 20052, USATemple University, Philadelphia, PA 19122, USAINFN, Sezione di Ferrara, 44100 Ferrara, ItalyThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA; INFN, Sezione di Genova, 16146 Genova, ItalyMassachusetts Institute of Technology, Cambridge, MA 02139, USANational Research Centre Kurchatov Institute - ITEP, Moscow, 117259, RussiaDuquesne University, 600 Forbes Avenue, Pittsburgh, PA 15282, USAUniversità degli Studi di Brescia, 25123 Brescia, Italy; INFN, Sezione di Pavia, 27100 Pavia, ItalyFairfield University, Fairfield CT 06824, USA; Carnegie Mellon University, Pittsburgh, PA 15213, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAThe George Washington University, Washington, DC 20052, USAUniversidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile; Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAOld Dominion University, Norfolk, VA 23529, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAINFN, Sezione di Genova, 16146 Genova, ItalyUniversit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceMississippi State University, Mississippi State, MS 39762-5167, USAUniversity of Glasgow, Glasgow G12 8QQ, United KingdomUniversity of Connecticut, Storrs, CT 06269, USALamar University, 4400 MLK Blvd, PO Box 10009, Beaumont, TX 77710, USA; Idaho State University, Pocatello, ID 83209, USA; Catholic University of America, Washington, D.C. 20064, USAINFN, Sezione di Ferrara, 44100 Ferrara, ItalyFlorida State University, Tallahassee, FL 32306, USAMassachusetts Institute of Technology, Cambridge, MA 02139, USAINFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy; Universita' di Roma Tor Vergata, 00133 Rome, ItalyINFN, Sezione di Genova, 16146 Genova, ItalyIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, FranceMassachusetts Institute of Technology, Cambridge, MA 02139, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAUniversity of Connecticut, Storrs, CT 06269, USAOhio University, Athens, OH 45701, USA; University of South Carolina, Columbia, SC 29208, USAUniversit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAArgonne National Laboratory, Argonne, IL 60439, USAUniversidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, ChileMississippi State University, Mississippi State, MS 39762-5167, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAFlorida State University, Tallahassee, FL 32306, USAChristopher Newport University, Newport News, VA 23606, USA; College of William and Mary, Williamsburg, VA 23187-8795, USAINFN, Sezione di Torino, 10125 Torino, ItalyIdaho State University, Pocatello, ID 83209, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA; University of New Hampshire, Durham, NH 03824-3568, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USASkobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, RussiaUniversity of South Carolina, Columbia, SC 29208, USACollege of William and Mary, Williamsburg, VA 23187-8795, USAUniversit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceArgonne National Laboratory, Argonne, IL 60439, USAUniversidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile; Yerevan Physics Institute, 375036 Yerevan, ArmeniaThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAOld Dominion University, Norfolk, VA 23529, USACollege of William and Mary, Williamsburg, VA 23187-8795, USAChristopher Newport University, Newport News, VA 23606, USA; Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAOhio University, Athens, OH 45701, USAUniversity of New Hampshire, Durham, NH 03824-3568, USAUniversity of South Carolina, Columbia, SC 29208, USA; The George Washington University, Washington, DC 20052, USAUniversity of Glasgow, Glasgow G12 8QQ, United KingdomSkobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, RussiaVirginia Tech, Blacksburg, VA 24061-0435, USAKyungpook National University, Daegu 41566, Republic of KoreaUniversity of Connecticut, Storrs, CT 06269, USAArgonne National Laboratory, Argonne, IL 60439, USAUniversity of Virginia, Charlottesville, VA 22901, USAOld Dominion University, Norfolk, VA 23529, USAFlorida International University, Miami, FL 33199, USANorfolk State University, Norfolk, VA 23504, USAUniversity of Connecticut, Storrs, CT 06269, USAThe George Washington University, Washington, DC 20052, USACatholic University of America, Washington, D.C. 20064, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA; Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USAINFN, Sezione di Roma Tor Vergata, 00133 Rome, ItalyUniversità degli Studi di Brescia, 25123 Brescia, Italy; INFN, Sezione di Pavia, 27100 Pavia, ItalyINFN, Sezione di Ferrara, 44100 Ferrara, Italy; Universita' di Ferrara, 44121 Ferrara, ItalyUniversity of Glasgow, Glasgow G12 8QQ, United KingdomINFN, Laboratori Nazionali di Frascati, 00044 Frascati, ItalyUniversity of Glasgow, Glasgow G12 8QQ, United KingdomUniversit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAINFN, Sezione di Genova, 16146 Genova, ItalyUniversità degli Studi dell'Insubria, 22100 Como, Italy; INFN, Sezione di Pavia, 27100 Pavia, ItalyUniversity of Glasgow, Glasgow G12 8QQ, United KingdomMassachusetts Institute of Technology, Cambridge, MA 02139, USAUniversidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, ChileINFN, Laboratori Nazionali di Frascati, 00044 Frascati, ItalyINFN, Sezione di Ferrara, 44100 Ferrara, ItalyUniversit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceArgonne National Laboratory, Argonne, IL 60439, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAUniversity of South Carolina, Columbia, SC 29208, USAJames Madison University, Harrisonburg, VA 22807, USAINFN, Sezione di Genova, 16146 Genova, ItalyFlorida State University, Tallahassee, FL 32306, USATemple University, Philadelphia, PA 19122, USAINFN, Sezione di Ferrara, 44100 Ferrara, Italy; Universita' di Ferrara, 44121 Ferrara, ItalyUniversity of New Hampshire, Durham, NH 03824-3568, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAChristopher Newport University, Newport News, VA 23606, USANational Research Centre Kurchatov Institute - ITEP, Moscow, 117259, RussiaCalifornia State University, Dominguez Hills, Carson, CA 90747, USAOld Dominion University, Norfolk, VA 23529, USA; University of Virginia, Charlottesville, VA 22901, USAUniversity of Glasgow, Glasgow G12 8QQ, United KingdomFlorida International University, Miami, FL 33199, USA; Thomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAINFN, Sezione di Genova, 16146 Genova, ItalyInstitute fur Kernphysik (Juelich), Juelich, GermanyINFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy; Universita' di Roma Tor Vergata, 00133 Rome, ItalyUniversity of Glasgow, Glasgow G12 8QQ, United KingdomOhio University, Athens, OH 45701, USAIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, FranceNorfolk State University, Norfolk, VA 23504, USACarnegie Mellon University, Pittsburgh, PA 15213, USAMassachusetts Institute of Technology, Cambridge, MA 02139, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAOhio University, Athens, OH 45701, USAUniversity of Glasgow, Glasgow G12 8QQ, United KingdomINFN, Laboratori Nazionali di Frascati, 00044 Frascati, ItalyTemple University, Philadelphia, PA 19122, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USAThe George Washington University, Washington, DC 20052, USAUniversity of South Carolina, Columbia, SC 29208, USA; The George Washington University, Washington, DC 20052, USAKyungpook National University, Daegu 41566, Republic of KoreaUniversity of South Carolina, Columbia, SC 29208, USAThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USA; Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USAUniversità degli Studi di Brescia, 25123 Brescia, Italy; INFN, Sezione di Pavia, 27100 Pavia, ItalyYerevan Physics Institute, 375036 Yerevan, ArmeniaUniversit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceSchool of Physics, Beihang University, Beijing 100191, ChinaUniversity of York, York YO10 5DD, United KingdomThomas Jefferson National Accelerator Facility, Newport News, VA 23606, USACanisius College, Buffalo, NY, USA; University of South Carolina, Columbia, SC 29208, USAUniversity of York, York YO10 5DD, United KingdomUniversity of Virginia, Charlottesville, VA 22901, USADuke University, Durham, NC 27708-0305, USAUniversity of Virginia, Charlottesville, VA 22901, USAHigh-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.http://www.sciencedirect.com/science/article/pii/S0370269321004639 |