QUARK-DIQUARK SYSTEMATICS OF BARYONS AND THE SU(6) SYMMETRY FOR LIGHT STATES

被引：10

作者：

Anisovich, A. V. ^{[1
]}

Anisovich, V. V. ^{[1
]}

Matveev, M. A. ^{[1
]}

Nikonov, V. A. ^{[1
]}

Sarantsev, A. V. ^{[1
]}

Vulfs, T. O. ^{[1
]}

机构：

[1] Petersburg Nucl Phys Inst, Gatchina 188300, Russia

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2010年 / 25卷 / 16期

关键词：

Quark model; diquark; baryon; systematics; MODEL; SPECTRUM; FORCES;

D O I：

10.1142/S0217751X10049177

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：

We continue our attempts to systematize baryons, which are composed of light quarks (q = u, d), as quark-diquark systems. The notion of two diquarks is used: (i) D(1)(1), with the spin S(D) = 1 and isospin I(D) = 1 and (ii) D(0)(0), with S(D) = 0 and I(D) = 0. Here we try to resolve the problem of the low-lying Delta(5/2(-)) states: in the last experiments the lightest state is observed at greater than or similar to 2200 MeV, not at 1900-2000 MeV as it has been stated 20 years ago. We are looking for different systematization variants with the forbidden low-lying Delta(5/2(-)) states in the mass region less than or similar to 2000 MeV. We see that the inclusion of the SU(6) constraints on qD(1)(1) states with angular momentum L = 1 results in a shift of the lightest Delta(5/2(-)) isobar to similar to 2300 MeV. The scheme with the SU(6) constraints for low-lying qD(1)(1) and qD(0)(0) states (with L = 0, 1) is presented in detail.

引用

页码：3155 / 3171

页数：17

共 20 条

[1] Review of particle physics [J].

Amsler, C. ;

Doser, M. ;

Antonelli, M. ;

Asner, D. M. ;

Babu, K. S. ;

Baer, H. ;

Band, H. R. ;

Barnett, R. M. ;

Bergren, E. ;

Beringer, J. ;

Bernardi, G. ;

Bertl, W. ;

Bichsel, H. ;

Biebel, O. ;

Bloch, P. ;

Blucher, E. ;

Blusk, S. ;

Cahn, R. N. ;

Carena, M. ;

Caso, C. ;

Cecccci, A. ;

Chakraborty, D. ;

Chen, M. -C. ;

Chivukula, R. S. ;

Cowan, G. ;

Dahl, O. ;

D'Ambrosio, G. ;

Damour, T. ;

de Gouvea, A. ;

DeGrand, T. ;

Dobrescu, B. ;

Drees, M. ;

Edwards, D. A. ;

Eidelman, S. ;

Elvira, V. D. ;

Erler, J. ;

Ezhela, V. V. ;

Feng, J. L. ;

Fetscher, W. ;

Fields, B. D. ;

Foster, B. ;

Gaisser, T. K. ;

Garren, L. ;

Gerber, H. -J. ;

Gerbier, G. ;

Gherghetta, T. ;

Giudice, G. F. ;

Goodman, M. ;

Grab, C. ;

Gritsan, A. V. .

PHYSICS LETTERS B, 2008, 667 (1-5) :1-+

[2]

Anisovich AV, 2000, PHYS REV D, V62, DOI 10.1103/PhysRevD.62.051502

[3]

ANISOVICH AV, 2009, HADRON 2009 13 INT C

[4]

ANISOVICH AV, ARXIV10011259

[5]

ANISOVICH AV, 2008, MESONS BARYONS SYSTE

[6] Quark-antiquark states and their radiative transitions in terms of the spectral integral equation: Light mesons [J].

Anisovich, V. V. ;

Dakhno, L. G. ;

Matveev, M. A. ;

Nikonov, V. A. ;

Sarantsev, A. V. .

PHYSICS OF ATOMIC NUCLEI, 2007, 70 (03) :450-477

[7]

Anisovich V.V., 2004, Quark Model and High Energy Collisions

[8] Extended partial-wave analysis of πN scattering data [J].

Arndt, R. A. ;

Briscoe, W. J. ;

Strakovsky, I. I. ;

Workman, R. L. .

PHYSICAL REVIEW C, 2006, 74 (04)

[9] BARYONS IN A RELATIVIZED QUARK-MODEL WITH CHROMODYNAMICS [J].

CAPSTICK, S ;

ISGUR, N .

PHYSICAL REVIEW D, 1986, 34 (09) :2809-2835

[10]

CUTKOSKY RE, 1980, BARYON 1980

← 1 2 →