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Title: Spectroscopy of Li Λ 9 by electroproduction

Abstract

Background: In the absence of accurate data on the free two-body hyperon-nucleon interaction, the spectra of hypernuclei can provide information on the details of the effective hyperon-nucleon interaction. Purpose: To obtain a high-resolution spectrum for the 9Be(e,e'K +) 9 ΛLi reaction. Method: Electroproduction of the hypernucleus 9 ΛLi has been studied for the first time with sub-MeV energy resolution in Hall A at Jefferson Lab on a 9Be target. In order to increase the counting rate and to provide unambiguous kaon identification, two superconducting septum magnets and a Ring Imaging CHerenkov detector (RICH) were added to the Hall A standard equipment. Results: The cross section to low-lying states of 9 ΛLi is concentrated within 3 MeV of the ground state and can be fitted with four peaks. The positions of the doublets agree with theory while a disagreement could exist with respect to the relative strengths of the peaks in the doublets. A Λ separation energy, B Λ, of 8.36±0.08 (stat.) ±0.08 (syst.) MeV was measured, in agreement with an earlier experiment.

Authors:
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Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Org.:
Jefferson Lab Hall A Collaboration
OSTI Identifier:
1171763
Alternate Identifier(s):
OSTI ID: 1181310
Report Number(s):
JLAB-PHY-14-1893; DOE/OR/23177-3104; arXiv:1405.5839
Journal ID: ISSN 0556-2813; PRVCAN; ArticleNumber: 034308
Grant/Contract Number:  
AC05-06OR23177; P203/12/2126
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 91; Journal Issue: 3; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Urciuoli, G. M., Cusanno, F., Marrone, S., Acha, A., Ambrozewicz, P., Aniol, K. A., Baturin, P., Bertin, P. Y., Benaoum, H., Blomqvist, K. I., Boeglin, W. U., Breuer, H., Brindza, P., Bydžovský, P., Camsonne, A., Chang, C. C., Chen, J.-P., Choi, Seonho, Chudakov, E. A., Cisbani, E., Colilli, S., Coman, L., Craver, B. J., De Cataldo, G., de Jager, C. W., De Leo, R., Deur, A. P., Ferdi, C., Feuerbach, R. J., Folts, E., Fratoni, R., Frullani, S., Garibaldi, F., Gayou, O., Giuliani, F., Gomez, J., Gricia, M., Hansen, J. O., Hayes, D., Higinbotham, D. W., Holmstrom, T. K., Hyde, C. E., Ibrahim, H. F., Iodice, M., Jiang, X., Kaufman, L. J., Kino, K., Kross, B., Lagamba, L., LeRose, J. J., Lindgren, R. A., Lucentini, M., Margaziotis, D. J., Markowitz, P., Meziani, Z. E., McCormick, K., Michaels, R. W., Millener, D. J., Miyoshi, T., Moffit, B., Monaghan, P. A., Moteabbed, M., Camacho, C. Muñoz, Nanda, S., Nappi, E., Nelyubin, V. V., Norum, B. E., Okasyasu, Y., Paschke, K. D., Perdrisat, C. F., Piasetzky, E., Punjabi, V. A., Qiang, Y., Reimer, P. E., Reinhold, J., Reitz, B., Roche, R. E., Rodriguez, V. M., Saha, A., Santavenere, F., Sarty, A. J., Segal, J., Shahinyan, A., Singh, J., Širca, S., Snyder, R., Solvignon, P. H., Sotona, M., Subedi, R., Sulkosky, V. A., Suzuki, T., Ueno, H., Ulmer, P. E., Veneroni, P., Voutier, E., Wojtsekhowski, B. B., Zheng, X., and Zorn, C.. Spectroscopy of LiΛ9 by electroproduction. United States: N. p., 2015. Web. doi:10.1103/PhysRevC.91.034308.
Urciuoli, G. M., Cusanno, F., Marrone, S., Acha, A., Ambrozewicz, P., Aniol, K. A., Baturin, P., Bertin, P. Y., Benaoum, H., Blomqvist, K. I., Boeglin, W. U., Breuer, H., Brindza, P., Bydžovský, P., Camsonne, A., Chang, C. C., Chen, J.-P., Choi, Seonho, Chudakov, E. A., Cisbani, E., Colilli, S., Coman, L., Craver, B. J., De Cataldo, G., de Jager, C. W., De Leo, R., Deur, A. P., Ferdi, C., Feuerbach, R. J., Folts, E., Fratoni, R., Frullani, S., Garibaldi, F., Gayou, O., Giuliani, F., Gomez, J., Gricia, M., Hansen, J. O., Hayes, D., Higinbotham, D. W., Holmstrom, T. K., Hyde, C. E., Ibrahim, H. F., Iodice, M., Jiang, X., Kaufman, L. J., Kino, K., Kross, B., Lagamba, L., LeRose, J. J., Lindgren, R. A., Lucentini, M., Margaziotis, D. J., Markowitz, P., Meziani, Z. E., McCormick, K., Michaels, R. W., Millener, D. J., Miyoshi, T., Moffit, B., Monaghan, P. A., Moteabbed, M., Camacho, C. Muñoz, Nanda, S., Nappi, E., Nelyubin, V. V., Norum, B. E., Okasyasu, Y., Paschke, K. D., Perdrisat, C. F., Piasetzky, E., Punjabi, V. A., Qiang, Y., Reimer, P. E., Reinhold, J., Reitz, B., Roche, R. E., Rodriguez, V. M., Saha, A., Santavenere, F., Sarty, A. J., Segal, J., Shahinyan, A., Singh, J., Širca, S., Snyder, R., Solvignon, P. H., Sotona, M., Subedi, R., Sulkosky, V. A., Suzuki, T., Ueno, H., Ulmer, P. E., Veneroni, P., Voutier, E., Wojtsekhowski, B. B., Zheng, X., & Zorn, C.. Spectroscopy of LiΛ9 by electroproduction. United States. doi:10.1103/PhysRevC.91.034308.
Urciuoli, G. M., Cusanno, F., Marrone, S., Acha, A., Ambrozewicz, P., Aniol, K. A., Baturin, P., Bertin, P. Y., Benaoum, H., Blomqvist, K. I., Boeglin, W. U., Breuer, H., Brindza, P., Bydžovský, P., Camsonne, A., Chang, C. C., Chen, J.-P., Choi, Seonho, Chudakov, E. A., Cisbani, E., Colilli, S., Coman, L., Craver, B. J., De Cataldo, G., de Jager, C. W., De Leo, R., Deur, A. P., Ferdi, C., Feuerbach, R. J., Folts, E., Fratoni, R., Frullani, S., Garibaldi, F., Gayou, O., Giuliani, F., Gomez, J., Gricia, M., Hansen, J. O., Hayes, D., Higinbotham, D. W., Holmstrom, T. K., Hyde, C. E., Ibrahim, H. F., Iodice, M., Jiang, X., Kaufman, L. J., Kino, K., Kross, B., Lagamba, L., LeRose, J. J., Lindgren, R. A., Lucentini, M., Margaziotis, D. J., Markowitz, P., Meziani, Z. E., McCormick, K., Michaels, R. W., Millener, D. J., Miyoshi, T., Moffit, B., Monaghan, P. A., Moteabbed, M., Camacho, C. Muñoz, Nanda, S., Nappi, E., Nelyubin, V. V., Norum, B. E., Okasyasu, Y., Paschke, K. D., Perdrisat, C. F., Piasetzky, E., Punjabi, V. A., Qiang, Y., Reimer, P. E., Reinhold, J., Reitz, B., Roche, R. E., Rodriguez, V. M., Saha, A., Santavenere, F., Sarty, A. J., Segal, J., Shahinyan, A., Singh, J., Širca, S., Snyder, R., Solvignon, P. H., Sotona, M., Subedi, R., Sulkosky, V. A., Suzuki, T., Ueno, H., Ulmer, P. E., Veneroni, P., Voutier, E., Wojtsekhowski, B. B., Zheng, X., and Zorn, C.. Sun . "Spectroscopy of LiΛ9 by electroproduction". United States. doi:10.1103/PhysRevC.91.034308. https://www.osti.gov/servlets/purl/1171763.
@article{osti_1171763,
title = {Spectroscopy of LiΛ9 by electroproduction},
author = {Urciuoli, G. M. and Cusanno, F. and Marrone, S. and Acha, A. and Ambrozewicz, P. and Aniol, K. A. and Baturin, P. and Bertin, P. Y. and Benaoum, H. and Blomqvist, K. I. and Boeglin, W. U. and Breuer, H. and Brindza, P. and Bydžovský, P. and Camsonne, A. and Chang, C. C. and Chen, J.-P. and Choi, Seonho and Chudakov, E. A. and Cisbani, E. and Colilli, S. and Coman, L. and Craver, B. J. and De Cataldo, G. and de Jager, C. W. and De Leo, R. and Deur, A. P. and Ferdi, C. and Feuerbach, R. J. and Folts, E. and Fratoni, R. and Frullani, S. and Garibaldi, F. and Gayou, O. and Giuliani, F. and Gomez, J. and Gricia, M. and Hansen, J. O. and Hayes, D. and Higinbotham, D. W. and Holmstrom, T. K. and Hyde, C. E. and Ibrahim, H. F. and Iodice, M. and Jiang, X. and Kaufman, L. J. and Kino, K. and Kross, B. and Lagamba, L. and LeRose, J. J. and Lindgren, R. A. and Lucentini, M. and Margaziotis, D. J. and Markowitz, P. and Meziani, Z. E. and McCormick, K. and Michaels, R. W. and Millener, D. J. and Miyoshi, T. and Moffit, B. and Monaghan, P. A. and Moteabbed, M. and Camacho, C. Muñoz and Nanda, S. and Nappi, E. and Nelyubin, V. V. and Norum, B. E. and Okasyasu, Y. and Paschke, K. D. and Perdrisat, C. F. and Piasetzky, E. and Punjabi, V. A. and Qiang, Y. and Reimer, P. E. and Reinhold, J. and Reitz, B. and Roche, R. E. and Rodriguez, V. M. and Saha, A. and Santavenere, F. and Sarty, A. J. and Segal, J. and Shahinyan, A. and Singh, J. and Širca, S. and Snyder, R. and Solvignon, P. H. and Sotona, M. and Subedi, R. and Sulkosky, V. A. and Suzuki, T. and Ueno, H. and Ulmer, P. E. and Veneroni, P. and Voutier, E. and Wojtsekhowski, B. B. and Zheng, X. and Zorn, C.},
abstractNote = {Background: In the absence of accurate data on the free two-body hyperon-nucleon interaction, the spectra of hypernuclei can provide information on the details of the effective hyperon-nucleon interaction. Purpose: To obtain a high-resolution spectrum for the 9Be(e,e'K+)9ΛLi reaction. Method: Electroproduction of the hypernucleus 9ΛLi has been studied for the first time with sub-MeV energy resolution in Hall A at Jefferson Lab on a 9Be target. In order to increase the counting rate and to provide unambiguous kaon identification, two superconducting septum magnets and a Ring Imaging CHerenkov detector (RICH) were added to the Hall A standard equipment. Results: The cross section to low-lying states of 9ΛLi is concentrated within 3 MeV of the ground state and can be fitted with four peaks. The positions of the doublets agree with theory while a disagreement could exist with respect to the relative strengths of the peaks in the doublets. A Λ separation energy, BΛ, of 8.36±0.08 (stat.) ±0.08 (syst.) MeV was measured, in agreement with an earlier experiment.},
doi = {10.1103/PhysRevC.91.034308},
journal = {Physical Review. C, Nuclear Physics},
number = 3,
volume = 91,
place = {United States},
year = {Sun Mar 01 00:00:00 EST 2015},
month = {Sun Mar 01 00:00:00 EST 2015}
}

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