Abstract
The pentaquark state recently discovered has been discussed based on various quark model calculations. Odd parity for the state cannot be ruled out theoretically because the contributions related to nontrivial color structures have not been studied completely. Other multiquark states, especially dibaryons, have been discussed also. A strangeness −3 NΩ dibaryon has been shown to have a width as small as 12—22 keV and should be detectable in Ω-high-productivity reactions such as at RHIC, COMPAS, and the planned JHF and FAIR projects.
Similar content being viewed by others
References
Yu. A. Simonov, Phys. Lett. B 107B, 1 (1981).
T. Nakano et al. (LEPS Collab.), Phys. Rev. Lett. 91, 012002 (2003); hep-ex/0301020; V. V. Barmin et al. (DIANA Collab.), Yad. Fiz. 66, 1763 (2003) [Phys. At. Nucl. 66, 1715 (2003)]; hep-ex/0304040; S. Stepanyan et al. (CLAS Collab.), Phys. Rev. Lett. 91, 252001 (2003); hep-ex/0307018; J. Barth et al. (SAPHIR Collab.), Phys. Lett. B 572, 127 (2003); hep-ex/0307083; A. E. Asratyan et al., hep-ex/0309042; V. Kubarovsky et al. (CLAS Collab.), hep-ex/0311046; A. Airapetian et al. (HERMES Collab.), hep-ex/0312044; A. Aliev et al. (SVD Collab.), hep-ex/0401024; M. Abdel-Bary et al. (COSY-TOF Collab.), hep-ex/0403011; P. Z. Aslanyan et al., hep-ex/0403044; S. Chekanov et al. (ZEUS), hep-ex/0403051.
C. Alt et al. (NA49 Collab.), hep-ex/0310014.
A. Aktas et al. (HERA-H1 Collab.), hep-ex/0403017.
A. R. Dzierba et al., hep-ph/0311125.
M. Zavertyaev, hep-ph/0311250.
R. A. Arndt, I. I. Strakovsky, and R. L. Workman, nucl-th/0308012.
N. G. Kelkar, M. Noakowski, and K. P. Khemchandani, hep-ph/0307134.
E. Lesquoy et al., Nucl. Phys. B 99, 346 (1975).
H. G. Fischer and S. Wenig, hep-ex/0401014.
K. T. Knopfle, M. Zavertyaev, and T. Zevko (HERA-B Collab.), hep-ex/0403020.
J. Z. Bai et al. (BES Collab.), hep-ex/0402012.
D. Diakonov, V. Petrov, and M. Polyakov, Z. Phys. A 359, 305 (1997); hep-ph/9703373.
R. Jaffe and F. Wilczek, Phys. Rev. Lett. 91, 232003 (2003); hep-ph/0307341.
M. Karliner and M. P. Mattis, Phys. Rev. D 34, 1991 (1986).
A. De Rujula, H. Georgi, and S. L. Glashow, Phys. Rev. D 12, 147 (1975).
N. Isgur and G. Karl, Phys. Rev. D 18, 4187 (1978); 19, 2653 (1979); 20, 1191 (1979).
I. M. Narodeskii, Yu. A. Simonov, M. A. Trusov, and A. I. Veselov, Phys. Lett. B 578, 318 (2004); hep-ph/0310118.
J. J. Dudek and F. E. Close, hep-ph/0311258.
P. Buccella and P. Sorba, hep-ph/0401083.
D. Diakonov and V. Petrov, hep-ph/0310212.
F. Stancu and D. O. Riska, hep-ph/0307010; L. Ya. Glozman, Phys. Lett. B 575, 18 (2003); hep-ph/0308232.
L. Ya. Glozman, Nucl. Phys. A 663–664, 103c (2000); N. Isgur, Phys. Rev. D 62, 054026 (2000).
B. K. Jennings and K. Maltman, hep-ph/0308286.
D. Qing, X. S. Chen, and F. Wang, Phys. Rev. C 57, R31 (1998); Phys. Rev. D 58, 114032 (1998); Commun. Theor. Phys. 32, 403 (1999); X. S. Chen, D. Qing, and F. Wang, Chin. Phys. Lett. 16, 403 (1999).
Yu. A. Simonov, Nucl. Phys. B 307, 512 (1988); D. S. Kuzmenko, V. I. Shevchenko, and Yu. A. Simonov, hep-ph/0310190.
F. Csikor et al., hep-lat/0309090; S. Sasaki, hep-lat/0310014.
T. Goldman et al., Nucl. Phys. A 481, 621 (1988); F. Wang et al., Phys. Rev. Lett. 69, 2901 (1992).
G. H. Wu, L. J. Teng, J. L. Ping, et al., Phys. Rev. C 53, 1161 (1996); G. H. Wu, J. L. Ping, L. J. Teng, et al., Nucl. Phys. A 673, 279 (2000); J. L. Ping, H. R. Pang, F. Wang, and T. Goldman, Phys. Rev. C 65, 044003 (2002); X. F. Lu, J. L. Ping, and F. Wang, Chin. Phys. Lett. 20, 42 (2003).
S. L. Zhu, hep-ph/0307345; J. Sugiyama, T. Doi, and M. Oka, hep-ph/0309271.
R. L. Jaffe, Phys. Rev. D 15, 267, 281 (1977).
B. Aubert et al. (BABAR Collab.), Phys. Rev. Lett. 90, 242001 (2003).
D. Besson et al. (CLEO Collab.), Phys. Rev. D 68, 032002 (2003).
S. K. Choi et al. (BELLE Collab.), hep-ex/0309032.
D. Acosta et al. (CDF-II Collab.), hep-ex/0312021.
E. Klempt, hep-ph/0404270.
R. L. Jaffe, Phys. Rev. Lett. 38, 195 (1977).
Yu. A. Simonov, Nucl. Phys. A 416, 109c (1984); 463, 231c (1987).
E. L. Lomon, Phys. Rev. D 26, 576 (1982); P. LaFrance and E. L. Lomon, Phys. Rev. D 34, 1341 (1986).
E. L. Lomon and H. Feshbach, Ann. Phys. (N.Y.) 48, 94 (1968).
A. Manohar and H. Georgi, Nucl. Phys. B 234, 189 (1984).
I. T. Obukhovsky and A. M. Kusainov, Phys. Lett. B 238, 142 (1990).
Q. B. Li et al., Nucl. Phys. A 683, 487 (2001).
H. R. Pang, J. L. Ping, F. Wang, and T. Goldman, Phys. Rev. C 66, 025201 (2002); Commun. Theor. Phys. 38, 424 (2002).
V. B. Kopeliovich, Phys. Lett. B 259, 234 (1991).
F. Wang, J. L. Ping, G. H. Wu, et al., Phys. Rev. C 51, 3411 (1995); T. Golman, K. Maltman, G. J. Stephenson, Jr., et al., Mod. Phys. Lett. A 13, 59 (1998).
T. Goldman, K. Maltman, G. J. Stephenson, Jr., et al., Phys. Rev. C 39, 1889 (1989); J. L. Ping, F. Wang, and T. Goldman, Nucl. Phys. A 688, 871 (2001).
T. Goldman, K. Maltman, and G. J. Stephenson, Jr., Phys. Rev. Lett. 59, 627 (1987); H. R. Pang, J. L. Ping, F. Wang, et al., nucl-th/0306043; H. R. Pang, J. L. Ping, L. Z. Chen, et al., Phys. Rev. C 70, 035201 (2004).
Author information
Authors and Affiliations
Additional information
From Yadernaya Fizika, Vol. 68, No. 5, 2005, pp. 841–846.
Original English Text Copyright © 2005 by Wang, Ping, Qing, Goldman.
This article was submitted by the authors in English.
Rights and permissions
About this article
Cite this article
Wang, F., Ping, J.L., Qing, D. et al. Multiquark states. Phys. Atom. Nuclei 68, 808–813 (2005). https://doi.org/10.1134/1.1935013
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1134/1.1935013