Publications
Publication Information
| Title | Probing the core of the strong nuclear interaction |
| Authors | Axel Schmidt, Jackson Pybus, R. Weiss, Efrain Segarra, Adin Hrnjic, Andrew Denniston, O. Hen, Eliazer Piasetzky, Lawrence Weinstein, N. Barnea, Mark Strikman, A. Larionov, Douglas Higinbotham, Shankar Adhikari, Moskov Amaryan, Giovanni Angelini, Gegham Asryan, Hamza Atac, Harutyun Avagyan, Carlos Ayerbe Gayoso, Lamya Baashen, Luca Barion, Mikhail Bashkanov, Marco Battaglieri, Arie Beck, Ivan Bedlinskiy, Fatiha Benmokhtar, Andrea Bianconi, Angela Biselli, Francesco Bossu, Sergey Boyarinov, M. Brahim, William Briscoe, William Brooks, Volker Burkert, Frank Cao, Daniel Carman, Jose Carvajal, Andrea Celentano, Pierre Chatagnon, Taya Chetry, GIUSEPPE CIULLO, L. Clark, Erez Cohen, Philip Cole, Marco Contalbrigo, Volker Crede, Reynier Cruz Torres, Annalisa D'Angelo, Natalya Dashyan, Raffaella De Vita, Enzo De Sanctis, Maxime Defurne, Alexandre Deur, Markus Diehl, Chaden Djalali, Meytal Duer, Michael Dugger, Raphael Dupre, Hovanes Egiyan, Mathieu Ehrhart, Ahmed El Alaoui, Lamiaa El Fassi, Paul Eugenio, Alessandra Filippi, Tony Forest, Gagik Gavalian, Shalev Gilad, Gerard Gilfoyle, Kevin Giovanetti, Francois-Xavier Girod-Gard, Giuseppe Antonio Cirrone, Derek Glazier, Evgeny Golovach, Ralf Gothe, Keith Griffioen, Lei Guo, Kawtar Hafidi, Hayk Hakobyan, Charles Hanretty, Nathan Harrison, Mohammad Hattawy, Florian Hauenstein, Timothy Hayward, Ken Hicks, Maurik Holtrop, Yordanka Ilieva, Izzy Illari, David Ireland, Boris Ishkhanov, Evgeny Isupov, D. Jenkins, Hyon-Suk Jo, Kyungseon Joo, Dustin Keller, Mariana Khachatryan, Achyut Khanal, Mahbub Khandaker, C. Kim, Wooyoung Kim, Franz Klein, Igor Korover, Valery Kubarovsky, Lucilla Lanza, Marco Leali, Paolo Lenisa, Ian MacGregor, Dominique Marchand, Nikolay Markov, Luca Marsicano, Valerio Mascagna, Sharon Beck, Bryan McKinnon, Marco Mirazita, Viktor Mokeev, Carlos Munoz Camacho, B. Mustafa, Pawel Nadel-Turonski, Shirsendu Nanda, Silvia Niccolai, Gabriel Niculescu, Mikhail Osipenko, Alexander Ostrovidov, Michael Paolone, Luciano Pappalardo, Rafayel Paremuzyan, Kijun Park, Eugene Pasyuk, Maria Patsyuk, William Phelps, Oleg Pogorelko, John Price, Yelena Prok, Dan Protopopescu, Marco Ripani, David Riser, Alessandro Rizzo, Guenther Rosner, Patrizia Rossi, Franck Sabatie, Carlos Salgado, Barak Schmookler, Reinhard Schumacher, Youri Sharabian, Utsav Shrestha, Iuliia Skorodumina, Daria Sokhan, Orlando Soto Sandoval, Nikolaos Sparveris, Stepan Stepanyan, Igor Strakovsky, Steffen Strauch, Joshua Artem Tan, Nicholas Tyler, Maurizio Ungaro, Luca Venturelli, Hakob Voskanyan, Eric Voutier, R. Wang, Daniel Watts, Xiangdong Wei, Michael Wood, Nicholas Zachariou, J. Zhang, Zhiwen Zhao, Xiaochao Zheng |
| JLAB number | JLAB-PHY-20-3135 |
| LANL number | (None) |
| Other number | DOE/OR/23177-4900 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Nature Volume 578 Page(s) 540-544 Refereed | |
| Publication Abstract: | The strong nuclear interaction between nucleons (protons and neutrons) is the effective force that holds the atomic nucleus together. This interaction stems from fundamental interactions between quarks and gluons (the constituents of nucleons) that are described by the equations of Quantum Chromodynamics (QCD). However, as these equations cannot be solved directly, physicists resort to describing nuclear interactions using effective models that are well constrained at typical inter-nucleon distances in nuclei [1-5] but not at shorter distances. This limits our current ability to describe high-density nuclear matter such as in the cores of neutron stars [6]. Here we use high-energy electron scattering measurements that isolate nucleon pairs in short-distance, high-momentum configurations [7-9] to test nucleon-nucleon (NN) interactions at previously unreachable short distances, corresponding to relative momenta above 400 MeV/c. As the relative momentum between two nucleons increases and their separation thereby decreases, we observe a transition from a spin-dependent tensor-force to a predominantly spin-independent scalar-force. Using a nonrelativistic potential approach, we find that of the two main types of modern NN interactions, Chiral Effective Field Theory (??EFT) interactions provide a good description of our data up to their cutoff scale, while the phenomenological A V18 interaction describe our data well over the entire measured range of 400 ? 1000 MeV/c. Accounting for relativistic effects using a Light- Cone formalism extends the agreement between the ??EFT interactions prediction and the data over the entire range, similar to the phenomenological interactions. These results demonstrate the power of using such measurements to study the nuclear interaction at short-distances and also support the use of point-like nucleons with two- and three-body effective interactions to describe nuclear systems up to densities several times higher than the central density of atomic nuclei. |
| Experiment Numbers: | |
| Group: | Hall B |
| Document: | |
| DOI: | https://doi.org/10.1038/s41586-020-2021-6 |
| Accepted Manuscript: | |
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