H-DIBARYON IN THE QCD SUM-RULE

被引：33

作者：

KODAMA, N ^{[1
]}

OKA, M ^{[1
]}

HATSUDA, T ^{[1
]}

机构：

[1] UNIV TSUKUBA,INST PHYS,TSUKUBA,IBARAKI 305,JAPAN

来源：

NUCLEAR PHYSICS A | 1994年 / 580卷 / 03期

关键词：

D O I：

10.1016/0375-9474(94)90908-3

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：

The QCD sum rule is applied to the H dibaryon and is compared to the flavor non-singlet di-nucleon. We find that the H dibaryon is almost degenerate to the di-nucleon in the SU(3)(flavor) limit and therefore is not deeply bound as far as the threshold parameter is adjusted not to have a di-nucleon bound state. After introducing the SU(3)f breaking effects, the H dibaryon is found to be bound by 40 MeV below the Lambda Lambda threshold with +/-70 MeV ambiguity due to the Borel mass choice.

引用

页码：445 / 454

页数：10

共 24 条

[1] 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

[2] BARYON MASSES AND CHIRAL SYMMETRY-BREAKING [J].

ESPRIU, D ;

PASCUAL, P ;

TARRACH, R .

NUCLEAR PHYSICS B, 1983, 214 (02) :285-298

[3] LAMBDA NUCLEON-SCATTERING IN THE QUARK-CLUSTER MODEL [J].

FAESSLER, A ;

STRAUB, U .

PHYSICS LETTERS B, 1987, 183 (01) :10-14

[4]

FORKEL H, 1993, PHYS REV LETT, V71, P434

[5] A METHOD TO CALCULATE RATIOS AMONG QCD CONDENSATES [J].

GIMENEZ, V ;

BORDES, J ;

PENARROCHA, J .

NUCLEAR PHYSICS B, 1991, 357 (01) :3-31

[6]

IMAI K, 1991, NUCL PHYS A, V527, pC181, DOI 10.1016/0375-9474(91)90114-L

[7] CALCULATION OF BARYON MASSES IN QUANTUM CHROMODYNAMICS [J].

IOFFE, BL .

NUCLEAR PHYSICS B, 1981, 188 (02) :317-341

[8]

IOFFE BL, 1981, NUCL PHYS B, V191, pE591

[9] H DIBARYON IN LATTICE QCD [J].

IWASAKI, Y ;

YOSHIE, T ;

TSUBOI, Y .

PHYSICAL REVIEW LETTERS, 1988, 60 (14) :1371-1374

[10] SEMICLASSICAL QUANTIZATION OF THE DIBARYON SKYRMION [J].

JAFFE, RL ;

KORPA, CL .

NUCLEAR PHYSICS B, 1985, 258 (02) :468-482

← 1 2 3 →