INTERPRETATION OF A DOUBLE HYPERNUCLEUS EVENT

被引：128

作者：

DOVER, CB

MILLENER, DJ

GAL, A

DAVIS, DH

机构：

[1] HEBREW UNIV JERUSALEM, RACAH INST PHYS, IL-91904 JERUSALEM, ISRAEL

[2] UNIV LONDON UNIV COLL, DEPT PHYS & ASTRON, LONDON WC1E 6BT, ENGLAND

来源：

PHYSICAL REVIEW C | 1991年 / 44卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.44.1905

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Arguments are put forward to suggest that a double hypernucleus event, recently reported by Aoki et al. as either Be-10-LAMBDA-LAMBDA or B-13-LAMBDA-LAMBDA, should be interpreted as B-13-LAMBDA-LAMBDA. It is proposed that the formation of B-13-LAMBDA-LAMBDA occurs sequentially via an intermediate excited state of C-14-LAMBDA-LAMBDA, which decays by proton emission: XI- + N-14 --> n + C-14-LAMBDA-LAMBDA*, C-14-LAMBDA-LAMBDA* --> p + B-13-LAMBDA-LAMBDA. Moreover, it is shown that particular excited states are favored in the XI- hyperon capture process. The binding energy of the two LAMBDA hyperons in B-13-LAMBDA-LAMBDA is B-LAMBDA-LAMBDA = 27.5 + 0.7 MeV, corresponding to an attractive S-LAMBDA-2 matrix element DELTA-B-LAMBDA-LAMBDA = 4.8 +/- 0.7 MeV, in good agreement with values of DELTA-B-LAMBDA-LAMBDA obtained from previous events.

引用

页码：1905 / 1909

页数：5

共 27 条

[1] DIRECT OBSERVATION OF SEQUENTIAL WEAK DECAY OF A DOUBLE HYPERNUCLEUS [J].

AOKI, S ;

BAHK, SY ;

CHUNG, KS ;

CHUNG, SH ;

FUNAHASHI, H ;

HAHN, CH ;

HARA, T ;

HIRATA, S ;

HOSHINO, K ;

IEIRI, M ;

IIJIMA, T ;

IMAI, K ;

ISHIGAMI, T ;

ITOW, Y ;

KAZUNO, M ;

KIKUCHI, K ;

KIM, CO ;

KIM, DC ;

KIM, JY ;

KOBAYASHI, M ;

KODAMA, K ;

MAEDA, Y ;

MASAIKE, A ;

MASUOKA, A ;

MATSUDA, Y ;

NAGOSHI, C ;

NAKAMURA, M ;

NAKANISHI, S ;

NAKANO, T ;

NAKAZAWA, K ;

NIWA, K ;

ODA, H ;

OKABE, H ;

ONO, S ;

OZAKI, R ;

PARK, IG ;

SATO, Y ;

SHIBUYA, H ;

SHIMIZU, HM ;

SONG, JS ;

SUGIMOTO, M ;

TAJIMA, H ;

TAKASHIMA, R ;

TAKEUTCHI, F ;

TANAKA, KH ;

TERANAKA, M ;

TEZUKA, I ;

TOGAWA, H ;

USHIDA, N ;

WATANABE, S .

PROGRESS OF THEORETICAL PHYSICS, 1991, 85 (06) :1287-1298

[2] SEARCH FOR THE H DIBARYON IN (K-,K+) REACTIONS [J].

AOKI, S ;

BAHK, SY ;

CHUNG, KS ;

CHUNG, SH ;

FUNAHASHI, H ;

HAHN, CH ;

HARA, T ;

HIRATA, S ;

HOSHINO, K ;

IEIRI, M ;

IIJIMA, T ;

IMAI, K ;

ISHIGAMI, T ;

ITOW, Y ;

KAZUNO, M ;

KIKUCHI, K ;

KIM, CO ;

KIM, DC ;

KIM, JY ;

KOBAYASHI, M ;

KODAMA, K ;

MAEDA, Y ;

MASAIKE, A ;

MATSUDA, Y ;

NAGOSHI, C ;

NAKAMURA, M ;

NAKANISHI, S ;

NAKANO, T ;

NAKAZAWA, K ;

NIWA, K ;

OKABE, H ;

ONO, S ;

PARK, IG ;

SATO, Y ;

SHIBUYA, H ;

SHIMIZU, HM ;

SONG, JS ;

TAJIMA, H ;

TAKASHIMA, R ;

TAKEUTCHI, F ;

TANAKA, KH ;

TERANAKA, M ;

TEZUKA, I ;

TOGAWA, H ;

UEDA, Y ;

USHIDA, N ;

WATANABE, S ;

WATANABE, T ;

YOKOTA, J ;

YOON, CS .

PHYSICAL REVIEW LETTERS, 1990, 65 (14) :1729-1732

[3] LAMBDA-LAMBDA INTERACTION ENERGY IN THE LAMBDA-LAMBDA-HE-6 HYPERNUCLEUS AND OBE POTENTIALS [J].

BANDO, H .

PROGRESS OF THEORETICAL PHYSICS, 1982, 67 (02) :699-701

[4] NEUTRON HOLE STATES IN "LI-6-LAMBDA,LI-7-LAMBDA,BE-9-LAMBDA AND C-12-LAMBDA HYPER-NUCLEI [J].

BERTINI, R ;

BING, O ;

BIRIEN, P ;

BRAUNE, K ;

BRUCKNER, W ;

CHAUMEAUX, A ;

FAESSLER, MA ;

FREY, RW ;

GARRETA, D ;

KETEL, TJ ;

KILIAN, K ;

MAYER, B ;

NIEWISCH, J ;

PIETRZYK, B ;

POVH, B ;

RITTER, HG ;

UHRMACHER, M .

NUCLEAR PHYSICS A, 1981, 368 (03) :365-374

[5] THE ALPHA-CLUSTER HYPERNUCLEI HE-5(LAMBDA), HE-6(LAMBDA-LAMBDA), BE-9(LAMBDA), BE-10(LAMBDA-LAMBDA) AND HYPERNUCLEAR INTERACTIONS [J].

BODMER, AR ;

USMANI, QN .

NUCLEAR PHYSICS A, 1987, 468 (3-4) :653-668

[6] SPECTROSCOPIC FACTORS FOR 1P SHELL [J].

COHEN, S ;

KURATH, D .

NUCLEAR PHYSICS A, 1967, A101 (01) :1-&

[7] 2-NUCLEON TRANSFER IN 1P SHELL [J].

COHEN, S ;

KURATH, D .

NUCLEAR PHYSICS A, 1970, A141 (01) :145-&

[8] THE IDENTIFIED LAMBDA LAMBDA-HYPERNUCLEI AND THE PREDICTED H-PARTICLE [J].

DALITZ, RH ;

DAVIS, DH ;

FOWLER, PH ;

MONTWILL, A ;

PNIEWSKI, J ;

ZAKRZEWSKI, JA .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1989, 426 (1870) :1-17

[9]

DALITZ RH, 1986, NUCL PHYS A, V450, pC311, DOI 10.1016/0375-9474(86)90564-6

[10] IDENTIFICATION OF A DOUBLE HYPERFRAGMENT [J].

DANYSZ, M ;

ALLEN, P ;

GARBUTT, DA ;

BULL, VA ;

ALLEN, JE ;

ZAKRZEWSKI, J ;

MONTWILL, A ;

FLETCHER, ER ;

DAVIS, DH ;

LEMONNE, J ;

GARBOWSKA, K ;

HEERAN, M ;

PNIEWSKI, J ;

KUMAR, RC ;

SACTON, J ;

BENISTON, MJ ;

MARCH, PV ;

SHAH, TP ;

TONER, WT ;

RENARD, P ;

OSULLIVAN, D ;

THOMPSON, A ;

PNIEWSKI, T .

NUCLEAR PHYSICS, 1963, 49 (01) :121-&

← 1 2 3 →