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

Korover, I.; Pybus, J.R.; Schmidt, Axel; Hauenstein, F.; Duer, M.; Hen, O.; Piasetzky, E.; Weinstein, Larry; Higinbotham, D. W.; Adhikari, S.; Adhikari, K. P.; Amaryan, M. J.; Angelini, G.; Atac, H.; Barion, L.; Battaglieri, M.; Beck, A.; Bedlinskiy, I.; Benmokhtar, F.; Bianconi, A.; Biselli, A.; Boiarinov, S.; Briscoe, W. J.; Brooks, W. K.; Bulumulla, D.; Burkert, Volker; Carman, D. S.; Celentano, A.; Chatagnon, P.; Chetry, T.; Clark, L.; Clary, B. A.; Cole, P. L.; Contalbrigo, M.; Credé, V.; Cruz-Torres, R.; D’Angelo, A.; Vita, R. De; Defurne, M.; Denniston, A.; Deur, A.; Diehl, Stefan; Djalali, C.; Dupré, R.; Egiyan, H.; Ehrhart, M.; Alaoui, A. El; Fassi, L. El; Elouadrhiri, L.; Eugenio, P.; Fersch, R.; Filippi, A.; Forest, T. A.; Gavalian, G.; Girod, F. X.; Golovatch, E.; Gothe, R. W.; Griffioen, K. A.; Guidal, M.; Hafidi, K.; Hakobyan, H.; Harrison, N.; Hattawy, M.; Hayward, T. B.; Heddle, D.; Hicks, K.; Holtrop, M.; Ilieva, Y.; Ireland, D. G.; Isupov, E. L.; Jenkins, David; Jo, H. S.; Joo, K.; Joosten, S.; Keller, D.; Khachatryan, M.; Khanal, A.; Khandaker, M.; Kim, A.; Kim, C.W.; Klein, F. J.; Kubarovsky, V.; Lanza, L.; Leali, M.; Lenisa, P.; Livingston, K.; Lucherini, V.; MacGregor, I. J. D.; Marchand, D.; Markov, N.; Marsicano, L.; Mascagna, V.; McKinnon, B.; Beck, S. Mey-Tal; Mineeva, T.; Mirazita, M.; Movsisyan, A.; Camacho, C. Muñoz; Mustapha, B.; Nadel-Turoński, P.; Neupane, K.; Niculescu, G.; Osipenko, M.; Ostrovidov, A. I.; Paolone, M.; Pappalardo, L. L.; Paremuzyan, R.; Pasyuk, E.; Phelps, W.; Pogorelko, O.; Price, J. W.; Prok, Y.; Protopopescu, D.; Raue, B. A.; Ripani, M.; Ritman, J.; Rizzo, A.; Rosner, G.; Rowley, J.; Sabatié, F.; Salgado, C.; Schumacher, R. A.; Segarra, E.P.; Sharabian, Y. G.; Shrestha, Uttam; Sokhan, D.; Soto, Orlando; Sparveris, N.; Stepanyan, S.; Strakovsky, I. I.; Strauch, S.; Tan, J. A.; Tyler, N. J. C.; Ungaro, M.; Venturelli, L.; Voskanyan, H.; Voutier, E.; Wang, T.; Watts, D. P.; Wei, X.; Wood, M. H.; Zachariou, N.; Zhang, J.; Zhao, Z. W.; Zheng, X.

doi:10.1016/j.physletb.2021.136523

Cited by 28 publications

(11 citation statements)

References 48 publications

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“…A nuclear wavefunction factorisation similar to GWW is assumed where strongly interacting two-body wavefunctions with relative s-wave contribution is considered [113]. The contact formalism is widely used to analyse the recent NN correlation measurements at Jefferson Lab and Brookhaven National Laboratory [114,115].…”

Section: Theoretical Framework For Srcsmentioning

confidence: 99%

Nucleon-nucleon correlations inside atomic nuclei: synergies, observations and theoretical models

Dalal¹,

MacGregor²

2022

Preprint

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While the main features of atomic nuclei are well described by nuclear mean-field models, there is a large and growing body of evidence which indicates an important additional role played by spatially-correlated nucleon-nucleon structures. The role of nucleonic structures was first suggested by Heidmann in 1950 to explain pick-up reactions of energetic nucleons. Since then a steady flux of new experimental evidence has confirmed the presence of similar structures inside atomic nuclei, dominated by correlations between pairs of nucleons. The role of these internal nucleon-nucleon correlations has been established using various energetic probes like photons, pions, leptons and hadrons. These correlated structures are essential for understanding the interaction of particles with nuclei and their presence provides an explanation of many specific nuclear phenomena including backscattered protons, copious deuteron production, sub-threshold particle production, neutrino interactions with nuclei and the EMC effect. On the theoretical side, these measurements have stimulated a large number of phenomenological models specifically devised to address these enigmatic observations. While reviews exist for specific interactions, there is currently no published commentary which systematically encompasses the wide range of experimental signatures and theoretical frameworks developed thus far. The present review draws together the synergies between a wide range of different experimental and theoretical studies, summarises progress in this area and highlights outstanding issues for further study.

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Section: Theoretical Framework For Srcsmentioning

confidence: 99%

Nucleon-nucleon correlations inside atomic nuclei: synergies, observations and theoretical models

Dalal¹,

MacGregor²

2022

Preprint

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“…In Ref. [1], we showed how evolving to low resolution quantitatively accounts for short-range correlation (SRC) physics phenomenology [2][3][4][5][6][7][8][9][10][11] with a cleanly interpreted framework that enables simple yet systematically improvable approximations. More generally, RG evolution enhances scale separation and hence factorization of structure and reaction mechanisms, facilitating the extraction of process-independent quantities and correlations between observables.…”

Section: Introductionmentioning

confidence: 99%

The quasi-deuteron model at low RG resolution

Tropiano,

Bogner,

Furnstahl

et al. 2022

Preprint

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Background:The quasi-deuteron model introduced by Levinger is used to explain cross sections for knocking out high-momentum protons in photo-absorption on nuclei. This is within a framework we characterize as exhibiting high renormalization group (RG) resolution. Assuming a one-body reaction operator, the nuclear wave function must include two-body short-range correlations (SRCs) with deuteron-like quantum numbers. In [Tropiano et al., Phys. Rev. C 104, 034311 (2021)], we showed that SRC physics can be naturally accounted for at low RG resolution.Purpose: Here we describe the quasi-deuteron model at low RG resolution and determine the Levinger constant, which is proportional to the ratio of nuclear photo-absorption to that for photo-disintegration of a deuteron.Method: We extract the Levinger constant based on the ratio of momentum distributions at high relative momentum. We compute momentum distributions evolved under similarity RG (SRG) transformations, where the SRC physics is shifted into the operator as a universal two-body term. The short-range nature of this operator motivates using local-density approximations with uncorrelated wave functions in evaluating nuclear matrix elements, which greatly simplifies the analysis. The operator must be consistently matched to the RG scale and scheme of the interaction for a reliable extraction. We apply SRG transformations to different nucleon-nucleon (NN) interactions and use the deuteron wave functions and Weinberg eigenvalues to determine approximate matching scales.Results: We predict the Levinger constant for several NN interactions and a wide range of nuclei comparing to experimental extractions. Conclusions:The predictions at low RG resolution are in good agreement with experiment when starting with a hard NN interaction and the initial operator. Similar agreement is found using soft NN interactions when the additional two-body operator induced by evolution from hard to soft is included.

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“…They are typically measured using (e, e pN ) reactions, where the electron scatters from one nucleon and its partner spectator nucleon recoils out of the nucleus. They account for about 20% of all nucleons and the vast majority of high momentum nucleons (with momentum greater about 300 MeV/c) [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Measuring Recoiling Nucleons from the Nucleus with the Electron Ion Collider

Hauenstein,

Jentsch,

Pybus

et al. 2021

Preprint

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Short range correlated nucleon-nucleon (N N ) pairs are an important part of the nuclear ground state. They are typically studied by scattering an electron from one nucleon in the pair and detecting its spectator correlated partner ("spectator-nucleon tagging"). The Electron Ion Collider (EIC) should be able to detect these nucleons, since they are boosted to high momentum in the lab frame by the momentum of the ion beam. To determine the feasibility of these studies with the planned EIC detector configuration, we have simulated quasi-elastic scattering for two electron and ion beam energy configurations: 5 GeV e − and 41 GeV/A ions, and 10 GeV e − and 110 GeV/A ions. We show that the knocked-out and recoiling nucleons can be detected over a wide range of initial nucleon momenta. We also show that these measurements can achieve much larger momentum transfers than current fixed target experiments. By detecting both low and high initial-momentum nucleons, the EIC will provide the data that should allow scientists to definitively show if the EMC effect and short-range correlation are connected, and to improve our understanding of color transparency.1 before the interaction and momentum p 1 + q and energy 1 + ω after. The recoil partner nucleon is treated as an on-shell spectator and is emitted with momentum p 2 = p c.m. − p 1 and corresponding energy. p c.m. is the center of mass motion of the SRC pair. In the GCF

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

Cited by 28 publications

References 48 publications

Nucleon-nucleon correlations inside atomic nuclei: synergies, observations and theoretical models

Nucleon-nucleon correlations inside atomic nuclei: synergies, observations and theoretical models

The quasi-deuteron model at low RG resolution

Measuring Recoiling Nucleons from the Nucleus with the Electron Ion Collider

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