Comment on the new Ds(*)+ π0 resonances

被引：127

作者：

Browder, TE ^{[1
]}

Pakvasa, S

Petrov, AA

机构：

[1] Univ Hawaii Manoa, Dept Phys & Astron, Honolulu, HI 96822 USA

[2] Wayne State Univ, Dept Phys & Astron, Detroit, MI 48201 USA

[3] Univ Michigan, Michigan Ctr Theoret Phys, Ann Arbor, MI USA

来源：

PHYSICS LETTERS B | 2004年 / 578卷 / 3-4期

关键词：

D O I：

10.1016/j.physletb.2003.10.067

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose an explanation of the new resonances observed in Ds((*)+)pi(0) decays. We suggest that the data can be explained by the mixing of conventional p-wave excited D-s(+) mesons with 4-quark states. The narrow states observed in D(s)(+)pi(0) and D-s*+pi(0) are primarily p-wave D-sJ(*) states, while the predominantly 4-quark states are shifted above (DK)-K-(*) threshold and should be broad. Ranges for the mixing parameter and mass of the 4-quark state in this scenario are given. Other experimental consequences are discussed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：365 / 368

页数：4

共 38 条

[1]

ABE K, UNPUB PHYS REV D

[2]

ABE K, EPS LP03 C

[3]

ABE K, BELLECONF0340

[4] Observation of a narrow meson state decaying to Ds+π0 at a mass of 2.32 GeV/c2 -: art. no. 242001 [J].

Aubert, B ;

Barate, R ;

Boutigny, D ;

Gaillard, JM ;

Hicheur, A ;

Karyotakis, Y ;

Lees, JP ;

Robbe, P ;

Tisserand, V ;

Zghiche, A ;

Palano, A ;

Pompili, A ;

Chen, JC ;

Qi, ND ;

Rong, G ;

Wang, P ;

Zhu, YS ;

Eigen, G ;

Ofte, I ;

Stugu, B ;

Abrams, GS ;

Borgland, AW ;

Breon, AB ;

Brown, DN ;

Button-Shafer, J ;

Cahn, RN ;

Charles, E ;

Day, CT ;

Gill, MS ;

Gritsan, AV ;

Groysman, Y ;

Jacobsen, RG ;

Kadel, RW ;

Kadyk, J ;

Kerth, LT ;

Kolomensky, YG ;

Kral, JF ;

Kukartsev, G ;

LeClerc, C ;

Levi, ME ;

Lynch, G ;

Mir, LM ;

Oddone, PJ ;

Orimoto, TJ ;

Pripstein, M ;

Roe, NA ;

Romosan, A ;

Ronan, MT ;

Shelkov, VG ;

Telnov, AV .

PHYSICAL REVIEW LETTERS, 2003, 90 (24) :242001/1-242001/7

[5]

Bali G.S., HEPPH0305209

[6] CHIRAL DYNAMICS AND HEAVY-QUARK SYMMETRY IN A SOLVABLE TOY FIELD-THEORETIC MODEL [J].

BARDEEN, WA ;

HILL, CT .

PHYSICAL REVIEW D, 1994, 49 (01) :409-425

[7]

BARDEN WA, HEPPH0305049

[8]

Barnes T., HEPPH0305025

[9]

BESSON D, UNPUB PHYS REV D

[10]

BROWDER T, UNPUB

← 1 2 3 4 →