Direct Observation of Proton-Neutron Short-Range Correlation Dominance in Heavy Nuclei
Abstract
Here, we measured the triple coincidence A(e,e'np) and A(e,e'pp) reactions on carbon, aluminum, iron, and lead targets at Q2 > 1.5 (GeV/c)2, xB > 1.1 and missing momentum > 400 MeV/c. This was the first direct measurement of both proton-proton (pp) and neutron-proton (np) short-range correlated (SRC) pair knockout from heavy asymmetric nuclei. For all measured nuclei, the average proton-proton (pp) to neutron-proton (np) reduced cross-section ratio is about 6%, in agreement with previous indirect measurements. Correcting for Single-Charge Exchange effects decreased the SRC pairs ratio to ~ 3%, which is lower than previous results. Comparisons to theoretical Generalized Contact Formalism (GCF) cross-section calculations show good agreement using both phenomeno- logical and chiral nucleon-nucleon potentials, favoring a lower pp to np pair ratio. The ability of the GCF calculation to describe the experimental data using either phenomenological or chiral poten- tials suggests possible reduction of scale- and scheme-dependence in cross section ratios. Our results also support the high-resolution description of high-momentum states being predominantly due to nucleons in SRC pairs.
- Authors:
- more »
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Old Dominion Univ., Norfolk, VA (United States); George Washington Univ., Washington, DC (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF); Israel Science Foundation (ISF); Chilean Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT); Centre National de la Recherche Scientifique (CNRS); Commissariat a l’Energie Atomique (CEA); National Research Foundation of Korea (NRF); United Kingdom Science and Technology Facilities Council
- Contributing Org.:
- CLAS Collaboration
- OSTI Identifier:
- 1511825
- Alternate Identifier(s):
- OSTI ID: 1511097; OSTI ID: 1545768; OSTI ID: 1593824; OSTI ID: 1594378; OSTI ID: 1656763
- Report Number(s):
- JLAB-PHY-19-2926; DOE/OR/23177-4677; arXiv:1810.05343
Journal ID: ISSN 0031-9007; PRLTAO
- Grant/Contract Number:
- AC05-06OR23177; AC02-06CH11357; FG02-96ER40960; SC0016583
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 122; Journal Issue: 17; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; asymmetric nuclear matter; Lepton induced nuclear reactions; nuclear matter in neutron stars; nucleon distribution; nucleon-nucleon interactions
Citation Formats
Duer, M., Schmidt, A., Pybus, J. R., Segarra, E. P., Hrnjic, A., Denniston, A. W., Weiss, R., Hen, O., Piasetzky, E., Weinstein, L. B., Barnea, N., Korover, I., Cohen, E. O., Hakobyan, H., Adhikari, S., Angelini, Giovanni, Battaglieri, M., Beck, A., Bedlinskiy, I., Biselli, A. S., Boiarinov, S., Brooks, W., Burkert, V. D., Cao, F., Carman, D. S., Celentano, A., Chetry, T., Ciullo, G., Clark, L., Cole, P. L., Contalbrigo, M., Cortes, O., Crede, V., Cruz Torres, R., D’Angelo, A., Dashyan, N., De Sanctis, E., De Vita, R., Deur, A., Diehl, S., Djalali, C., Dupre, R., Duran, Burcu, Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Filippi, A., Forest, T. A., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Golovatch, E., Gothe, R. W., Griffioen, K. A., Guo, L., Hafidi, K., Hanretty, C., Harrison, N., Hattawy, M., Hauenstein, F., Hayward, T. B., Heddle, D., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jo, H. S., Joo, K., Kabir, M. L., Keller, D., Khachatryan, M., Khanal, A., Khandaker, M., Kim, W., Klein, F. J., Kubarovsky, V., Kuhn, S. E., Lanza, L., Laskaris, G., Lenisa, P., Livingston, K., MacGregor, I. J. D., Marchand, D., Markov, N., McKinnon, B., Mey-Tal Beck, S., Mirazita, M., Mokeev, V., Montgomery, R. A., Movsisyan, A., Munoz Camacho, C., Mustapha, B., Nadel-Turonski, P., Niccolai, S., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Paolone, M., Paremuzyan, R., Park, K., Pasyuk, E., Patsyuk, M., Phelps, W., Pogorelko, O., Prok, Y., Protopopescu, D., Ripani, M., Rizzo, A., Rosner, G., Rossi, P., Sabatié, F., Schmookler, B. A., Schumacher, R. A., Sharabian, Y., Skorodumina, Iu., Sokhan, D., Sparveris, N., Stepanyan, S., Strauch, S., Taiuti, M., Tan, J. A., Tyler, N., Ungaro, M., Voskanyan, H., Voutier, E., Wang, R., Wei, X., Wood, M. H., Zachariou, N., Zhang, J., Zhao, Z. W., and Zheng, X. Direct Observation of Proton-Neutron Short-Range Correlation Dominance in Heavy Nuclei. United States: N. p., 2019.
Web. doi:10.1103/PhysRevLett.122.172502.
Duer, M., Schmidt, A., Pybus, J. R., Segarra, E. P., Hrnjic, A., Denniston, A. W., Weiss, R., Hen, O., Piasetzky, E., Weinstein, L. B., Barnea, N., Korover, I., Cohen, E. O., Hakobyan, H., Adhikari, S., Angelini, Giovanni, Battaglieri, M., Beck, A., Bedlinskiy, I., Biselli, A. S., Boiarinov, S., Brooks, W., Burkert, V. D., Cao, F., Carman, D. S., Celentano, A., Chetry, T., Ciullo, G., Clark, L., Cole, P. L., Contalbrigo, M., Cortes, O., Crede, V., Cruz Torres, R., D’Angelo, A., Dashyan, N., De Sanctis, E., De Vita, R., Deur, A., Diehl, S., Djalali, C., Dupre, R., Duran, Burcu, Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Filippi, A., Forest, T. A., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Golovatch, E., Gothe, R. W., Griffioen, K. A., Guo, L., Hafidi, K., Hanretty, C., Harrison, N., Hattawy, M., Hauenstein, F., Hayward, T. B., Heddle, D., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jo, H. S., Joo, K., Kabir, M. L., Keller, D., Khachatryan, M., Khanal, A., Khandaker, M., Kim, W., Klein, F. J., Kubarovsky, V., Kuhn, S. E., Lanza, L., Laskaris, G., Lenisa, P., Livingston, K., MacGregor, I. J. D., Marchand, D., Markov, N., McKinnon, B., Mey-Tal Beck, S., Mirazita, M., Mokeev, V., Montgomery, R. A., Movsisyan, A., Munoz Camacho, C., Mustapha, B., Nadel-Turonski, P., Niccolai, S., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Paolone, M., Paremuzyan, R., Park, K., Pasyuk, E., Patsyuk, M., Phelps, W., Pogorelko, O., Prok, Y., Protopopescu, D., Ripani, M., Rizzo, A., Rosner, G., Rossi, P., Sabatié, F., Schmookler, B. A., Schumacher, R. A., Sharabian, Y., Skorodumina, Iu., Sokhan, D., Sparveris, N., Stepanyan, S., Strauch, S., Taiuti, M., Tan, J. A., Tyler, N., Ungaro, M., Voskanyan, H., Voutier, E., Wang, R., Wei, X., Wood, M. H., Zachariou, N., Zhang, J., Zhao, Z. W., & Zheng, X. Direct Observation of Proton-Neutron Short-Range Correlation Dominance in Heavy Nuclei. United States. https://doi.org/10.1103/PhysRevLett.122.172502
Duer, M., Schmidt, A., Pybus, J. R., Segarra, E. P., Hrnjic, A., Denniston, A. W., Weiss, R., Hen, O., Piasetzky, E., Weinstein, L. B., Barnea, N., Korover, I., Cohen, E. O., Hakobyan, H., Adhikari, S., Angelini, Giovanni, Battaglieri, M., Beck, A., Bedlinskiy, I., Biselli, A. S., Boiarinov, S., Brooks, W., Burkert, V. D., Cao, F., Carman, D. S., Celentano, A., Chetry, T., Ciullo, G., Clark, L., Cole, P. L., Contalbrigo, M., Cortes, O., Crede, V., Cruz Torres, R., D’Angelo, A., Dashyan, N., De Sanctis, E., De Vita, R., Deur, A., Diehl, S., Djalali, C., Dupre, R., Duran, Burcu, Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Filippi, A., Forest, T. A., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Golovatch, E., Gothe, R. W., Griffioen, K. A., Guo, L., Hafidi, K., Hanretty, C., Harrison, N., Hattawy, M., Hauenstein, F., Hayward, T. B., Heddle, D., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Jo, H. S., Joo, K., Kabir, M. L., Keller, D., Khachatryan, M., Khanal, A., Khandaker, M., Kim, W., Klein, F. J., Kubarovsky, V., Kuhn, S. E., Lanza, L., Laskaris, G., Lenisa, P., Livingston, K., MacGregor, I. J. D., Marchand, D., Markov, N., McKinnon, B., Mey-Tal Beck, S., Mirazita, M., Mokeev, V., Montgomery, R. A., Movsisyan, A., Munoz Camacho, C., Mustapha, B., Nadel-Turonski, P., Niccolai, S., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Paolone, M., Paremuzyan, R., Park, K., Pasyuk, E., Patsyuk, M., Phelps, W., Pogorelko, O., Prok, Y., Protopopescu, D., Ripani, M., Rizzo, A., Rosner, G., Rossi, P., Sabatié, F., Schmookler, B. A., Schumacher, R. A., Sharabian, Y., Skorodumina, Iu., Sokhan, D., Sparveris, N., Stepanyan, S., Strauch, S., Taiuti, M., Tan, J. A., Tyler, N., Ungaro, M., Voskanyan, H., Voutier, E., Wang, R., Wei, X., Wood, M. H., Zachariou, N., Zhang, J., Zhao, Z. W., and Zheng, X. Fri .
"Direct Observation of Proton-Neutron Short-Range Correlation Dominance in Heavy Nuclei". United States. https://doi.org/10.1103/PhysRevLett.122.172502. https://www.osti.gov/servlets/purl/1511825.
@article{osti_1511825,
title = {Direct Observation of Proton-Neutron Short-Range Correlation Dominance in Heavy Nuclei},
author = {Duer, M. and Schmidt, A. and Pybus, J. R. and Segarra, E. P. and Hrnjic, A. and Denniston, A. W. and Weiss, R. and Hen, O. and Piasetzky, E. and Weinstein, L. B. and Barnea, N. and Korover, I. and Cohen, E. O. and Hakobyan, H. and Adhikari, S. and Angelini, Giovanni and Battaglieri, M. and Beck, A. and Bedlinskiy, I. and Biselli, A. S. and Boiarinov, S. and Brooks, W. and Burkert, V. D. and Cao, F. and Carman, D. S. and Celentano, A. and Chetry, T. and Ciullo, G. and Clark, L. and Cole, P. L. and Contalbrigo, M. and Cortes, O. and Crede, V. and Cruz Torres, R. and D’Angelo, A. and Dashyan, N. and De Sanctis, E. and De Vita, R. and Deur, A. and Diehl, S. and Djalali, C. and Dupre, R. and Duran, Burcu and Egiyan, H. and El Alaoui, A. and El Fassi, L. and Eugenio, P. and Filippi, A. and Forest, T. A. and Gilfoyle, G. P. and Giovanetti, K. L. and Girod, F. X. and Golovatch, E. and Gothe, R. W. and Griffioen, K. A. and Guo, L. and Hafidi, K. and Hanretty, C. and Harrison, N. and Hattawy, M. and Hauenstein, F. and Hayward, T. B. and Heddle, D. and Hicks, K. and Holtrop, M. and Ilieva, Y. and Ireland, D. G. and Ishkhanov, B. S. and Isupov, E. L. and Jo, H. S. and Joo, K. and Kabir, M. L. and Keller, D. and Khachatryan, M. and Khanal, A. and Khandaker, M. and Kim, W. and Klein, F. J. and Kubarovsky, V. and Kuhn, S. E. and Lanza, L. and Laskaris, G. and Lenisa, P. and Livingston, K. and MacGregor, I. J. D. and Marchand, D. and Markov, N. and McKinnon, B. and Mey-Tal Beck, S. and Mirazita, M. and Mokeev, V. and Montgomery, R. A. and Movsisyan, A. and Munoz Camacho, C. and Mustapha, B. and Nadel-Turonski, P. and Niccolai, S. and Niculescu, G. and Osipenko, M. and Ostrovidov, A. I. and Paolone, M. and Paremuzyan, R. and Park, K. and Pasyuk, E. and Patsyuk, M. and Phelps, W. and Pogorelko, O. and Prok, Y. and Protopopescu, D. and Ripani, M. and Rizzo, A. and Rosner, G. and Rossi, P. and Sabatié, F. and Schmookler, B. A. and Schumacher, R. A. and Sharabian, Y. and Skorodumina, Iu. and Sokhan, D. and Sparveris, N. and Stepanyan, S. and Strauch, S. and Taiuti, M. and Tan, J. A. and Tyler, N. and Ungaro, M. and Voskanyan, H. and Voutier, E. and Wang, R. and Wei, X. and Wood, M. H. and Zachariou, N. and Zhang, J. and Zhao, Z. W. and Zheng, X.},
abstractNote = {Here, we measured the triple coincidence A(e,e'np) and A(e,e'pp) reactions on carbon, aluminum, iron, and lead targets at Q2 > 1.5 (GeV/c)2, xB > 1.1 and missing momentum > 400 MeV/c. This was the first direct measurement of both proton-proton (pp) and neutron-proton (np) short-range correlated (SRC) pair knockout from heavy asymmetric nuclei. For all measured nuclei, the average proton-proton (pp) to neutron-proton (np) reduced cross-section ratio is about 6%, in agreement with previous indirect measurements. Correcting for Single-Charge Exchange effects decreased the SRC pairs ratio to ~ 3%, which is lower than previous results. Comparisons to theoretical Generalized Contact Formalism (GCF) cross-section calculations show good agreement using both phenomeno- logical and chiral nucleon-nucleon potentials, favoring a lower pp to np pair ratio. The ability of the GCF calculation to describe the experimental data using either phenomenological or chiral poten- tials suggests possible reduction of scale- and scheme-dependence in cross section ratios. Our results also support the high-resolution description of high-momentum states being predominantly due to nucleons in SRC pairs.},
doi = {10.1103/PhysRevLett.122.172502},
journal = {Physical Review Letters},
number = 17,
volume = 122,
place = {United States},
year = {Fri May 03 00:00:00 EDT 2019},
month = {Fri May 03 00:00:00 EDT 2019}
}
Web of Science
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Works referencing / citing this record:
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PANDA as midrapidity detector for a future HESR Collider at FAIR
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PANDA as midrapidity detector for a future HESR Collider at FAIR
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