GAMMA SPECTROSCOPY OF P-SHELL HYPERNUCLEI AND ΛN SPIN-DEPENDENT INTERACTIONS-REPORT OF BNL E930

Author:

,TAMURA H.1,AJIMURA S.2,AKIKAWA H.3,ALBURGER D. E.4,BANU A.5,CHRIEN R. E.4,EUGENIO P.6,FRANKLIN G. B.6,FRANZ J.7,GAN L.8,HASHIMOTO O.1,HAYAKAWA T.2,HOTCHI H.4,IMAI K.3,KISHIMOTO T.2,KHAUSTOV P.6,MAY M.4,MINAMI S.2,MIURA Y.1,MIYOSHI T.1,MIZUNUMA K.1,NAGAE T.9,NAKAMURA S. N.1,NAKAZAWA K.10,OKAYASU Y.1,PILE P. H.4,QUINN B. P.6,RUSEK A.4,SASAO J.1,SATO Y.9,SAWAFTA R.11,SCHMITT H.7,SUTTER R.4,TAKAHASHI H.3,TANG L.8,TANIDA K.1213,UKAI M.1,YUAN L.8,ZHOU S. H.14,ZHU L. H.314,ZHU X. F.148

Affiliation:

1. Department of Physics, Tohoku University, Sendai 980-8578, Japan

2. Department of Physics, Osaka University, Toyonaka 560-0043, Japan

3. Department of Physics, Kyoto University, Kyoto 606-8502, Japan

4. Brookhaven National Laboratory, NY 11973, USA

5. GSI, Darmstadt D-64291, Germany

6. Carnegie Mellon University, Pittsburgh, PA 15213, USA

7. Department of Physics, University of Freiburg, Freiburg 79104, Germany

8. Department of Physics, Hampton University, Hampton, VA 23668, USA

9. High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan

10. Department of Physics, Gifu University, Gifu 501-1193, Japan

11. Physics Department, North Carolina A&T State University, Greensboro, NC 27411, USA

12. Department of Physics, University of Tokyo, Tokyo 113-0033, Japan

13. Institute of Physical and Chemical Research (RIKEN), Wako 351-0198, Japan

14. Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China

Abstract

High resolution γ spectroscopy of hypernuclei using Hyperball has revealed detailed level structure of several p-shell Λ hypernuclei and allowed us to extract the strengths of ΛN spin-dependent interactions. In the experiment BNL E930, we observed E2(3/2+, 5/2+ → 1/2+) transitions in [Formula: see text] and confirmed a small size of the Λ-spin-dependent spin-orbit force. Recently we took data for [Formula: see text] and [Formula: see text] in order to investigate the strength of the ΛN tensor force. In a preliminary analysis, we observed γ rays of [Formula: see text] and [Formula: see text].

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

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