Title: a. ?????????? S*(1/2-) ;
1????????
- ??????
- ??????????
- ??????????????
?????????? ???????? 2012?6?
2??
- ????
- ????????
- a. ?????????? S(1/2-)
- b. p p ap n p ??
- c. ??N?L???
- ???????
- a. a0(980)-f0(980) ??
- b. Triangle Singularity(TS)???
- ??
3????
??
?????
??
4??(qq)
??(q q q)
K
K0
?
?
?0
?-
?
K-
?K0
Jp0-
Jp1/2
L 0
K
K0
?
?0
?
?-
?
K-
?K0
Jp3/2
Jp1-
5??
- ?????????????????????????????????????????????????
??? - ???????????????????,??????????????????,???????????
?????????????????,????????????? - ???????,?????????????????????????????????,????????
????????????
6??
- ????
- ????????
- a. ?????????? S(1/2-)
- b. p p ap n p ??
- c. ??N?L???
- ???????
- a. a0(980)-f0(980) ??
- b. Triangle Singularity(TS)???
- ??
7??????
?????
N(1440) uud (L0,n2) N(1535) uud
(L1,n1) L(1405) uds (L1,n1)
N. Kaiser, P. B. Siegel, and W. Weise, PLB 362,23
(1995). Jido, Oller, Oset, A. Ramos, Meissner,
NPA725, 181 (2003). J. P. Liu Z. Phy. C 22
171(1984)
????
S
N(1440) Ns N(1535) KS-KL L(1405)
KN-Sp
u
S
u
d
?????
C. Helminen and D. O. Riska, NPA699, 624
2002. S. L. Zhu, etc. High Energy Phys. Nucl.
Phys. 29, 250 2005. B. S. Zou, EPJA35, 325 2008.
u
S
N(1440) uduqq N(1535)
uduss L(1405) udsqq
S
d
u
8??
- ????
- ????????
- a. ?????????? S(1/2-)
- b. p p ap n p ??
- c. ??N?L???
- ???????
- a. a0(980)-f0(980) ??
- b. Triangle Singularity(TS)???
- ??
9???????????????? L usdss
1575 MeV S usdud 1360 MeV
X usdsu 1520
MeV
Jp1/2-
10?? ????????S(1/2-)
- 70???????
- K-p?Lpp-
- ????????
- ?n ? KS- (LEPS 2009)
J. J. Wu, S. Dulat, B.S. Zou. PRD
80,017503(2009). PRC 81,045210(2010).
Puze Gao, J. J. Wu, B.S. Zou PRC 81,055203(2010)
- ??????????Jp3/2?S(1385)????
- ????????,?1380MeV?????????,????????????S(1/2-)?
?1380MeV????????????????????
11??K- p ?L p p- ????
Pk1.0-1.8 GeV
J. J. Wu, S. Dulat and B. S. Zou PRD 80, 017503
93 S(3/2)7 background
(c2/ndf10.1 / 9)
D. O. Huwe, Phys. Rev. 181, 1824 (1969).
p1 ? p ?????????? p2 ?p- ? S ?????????
58 S(3/2) 37 S(1/2-) 5 background
(c2/ndf3.2 / 9)
12Pk0.3-0.6 GeV
59 S(3/2) 41 S(1/2-)
100 S(3/2)
13???n ? KS- ??????
- ????????????CLAS ??????
????LEPS??????
???????? - ?????????? Abeam ??????????
? ???????????????????????????
h1.0
S(1380)1/2-
h1.11
Hicks, et.al. (LEPS), PRL102,012501(2009)
14?? ????????S(1/2-)
- ? K- p?L p p- ? ?n ? K S - ????,??S(1/2-)
?????????????????????????????????1380MeV??,???100M
eV???S(1/2-) ? - ????S(1/2-) ??,????????????????
15??
- ????
- ????????
- a. ?????????? S(1/2-)
- b.p p ap n p ??
- c. ??N?L???
- ???????
- a. a0(980)-f0(980) ??
- b. Triangle Singularity(TS)???
- ??
16p p gp n p ????
- ??N??????????
- ?????????N(1440),????????
- ????p p gp n p ?????,???????????????N?????,???
N(1440)
17p p gp n p ????
???????????,D(1232), N(1440),N(1520),?N(1680)??
?? pp g pnp ??????,????????????
J. J. Wu, Zheng Ouyang, B.S. Zou
Phys.Rev.C80045211,2009. .
18???N(1440) ?
D ???
19p p gp n p???
- 1)????????? 1.55 GeV ???,?????? N(1440)
???,?????????????? Ns ??????N - 2)?pp ?????????? NNp ??,?? np ???????? NNs
??,?????????? N ????? - 3)??D ?????????,??? N ??????
20??
- ????
- ????????
- a. ?????????? S(1/2-)
- b. p p ap n p ??
- c. ??N?L???
- ???????
- a. a0(980)-f0(980) ??
- b. Triangle Singularity(TS)???
- ??
21??N?L??
????
??
????????
??????
u,d,s??
????????
????cc ?bb ??,??????????
???? DSc - DLc
N(cc ) uud cc
????? ud uc c
22??N?L??
??????
?????,????????
??? ???
??
T
????,?????????
??????????,Valencia???EBAC???
23?cc ?bb ??????????
SU(3)
SU(4)
E. Oset and A. Ramos Eur. Phys. J. A 44 445(2010)
J. J. Wu, R. Molina, E. Oset and
B. S. Zou, PRL105, 232001 PRC 84, 015202
J. J.
Wu, Lu. Zhao, B. S. Zou, PLB 709, 70
24?cc ?bb ??????????
Valencia???
f93MeV? p ??????Cab ? SU(4) ?CG????? E. M.
Haacke, J. W. Moffat and P. Savaria J. Math.
Phys. 17, 2041.
25??????G??
????,??r???,0.8GeV
m1GeV ???? am ???????
26???? T ??
- ???? V ? G ??,????Bethe-Salpeter????????????T??
?????????
27??N?L??
- ????????????? T ?????,???????????????????
The pole position
28?????
????????????????
- ?????????cc (bb )??????-??????? pN, hN, hN,
KN ? - ????cc (bb ) ??,????? c(b) ??????-??????J/y N,
hc N, U N, hb L
????????????-??????? t ?????????????D ? Ds
(B?Bs)??,???????????,??????????????
29????
30??N?L??
- ????????????? T ?????,???????????????????
The pole position
31EBAC ??
32EBAC ??
?????????
33EBAC??
???? T ?????????????BS????? J. J. Wu, T.-S. H.
Lee and B. S. Zou, PRC 85,044002(2012)
34Valencia ?? VS EBAC ??
DSc
4269MeV
4301-4318MeV
35???????
- ?????????????????
- Valencia ??
- J. -J.Wu, R. Molina, E. Oset and B. S. Zou,
- PRL 105, 232001 PRC 84, 015202
- J. -J. Wu, Lu Zhao and B. S. Zou, PLB 709, 70
- EBAC??
- J. -J. Wu, T. -S. H. Lee and B. S. Zou, PRC
85, 044002 - ??????-?????
- W. L.Wang, F. Huang, Z. Y. Zhang, B. S. Zou,
- PRC 84, 015203 (2011).
- ?????
- Z. -C.Yang, Zhifeng Sun, J. He, X. Liu, S.
-L. Zhu, - arXiv1105.2901 hep-ph.
- ??????
- S. G. Yuan, K. W. Wei, J. He, H. S. Xu and B.
S. Zou, - Eur.Phys.J. A48 (2012) 61.
36???????
- ???????????????????PB???cc ???????
- Valencia ?? 4240 4290 MeV
- EBAC?? 4301 4318 MeV (2.0 - 0.8
GeV) - ??????-?????
- 4279 4316
MeV - ????? 4302 4318 MeV (2.2 - 1.6 GeV)
- ?????? 4267, 4023 , 4089 MeV
- ?? , ????
, INST.
??????????????????,???? 4.3 GeV ???
37- ????? 12 ????? ??????????cc ?bb ??????4.3
GeV?11 GeV ????????N?L??????? - ???????????
- ??? ?cc /bb
?? - ??? ???
- cc 10 / 0.1MeV 20 / 5MeV
- bb 0.2MeV 0.5MeV
- ?????,????N?L???????????????
38?????
- Bell ????? arXiv 1105.4583
- U(5s) g U(ns)pp-??PRL 108,122001 (2012)
- U(5s) g hb(mp)pp-
- Zb(10610) ?Zb(10650)
- du bb ud bb
- ?????
- uud cc uud bb
39?pp ? ep ???????????????
????????????cc ?bb ???????????!
- ?? PANDA ??????? 15 GeV????????????,??????????
4538 MeV ???? - ?? Jefferson ????????? 12 GeV ???????,???????
4899 MeV ???
40?pp ????????????
pp g hcpp 270nb L1030cm-2s-1 9000/?
pp g J/ypp 0.012nb 90/?
41? ep ????????????
ep g J/y e p 4 nb
42- ?????????????pp ? ep ??????
- p p g hcp p 2 70nb
- p p g J/yp p 0.008 2 nb
- e p g J/y e p 4 nb
??????????????????????????
43??
- ????
- ????????
- a. ?????????? S(1/2-)
- b. p p ap n p ??
- c. ??N?L???
- ???????
- a. a0(980)-f0(980) ??
- b. Triangle Singularity(TS)???
- ??
44??
- ????
- ????????
- a. ?????????? S(1/2-)
- b. p p ap n p ??
- c. ??N?L???
- ???????
- a. a0(980)-f0(980) ??
- b. Triangle Singularity(TS)???
- ??
45?????????????
q2q2 nonet
qq 3P1 nonet
????
ud u d
uu dd
s(600)
uu -dd
us u s -ds d s
a0(980)
ss
us u s ds d s
f0(980)
sd /su
su u d
k(800)
KK Molecule Model
a0(980) K KKK
f0(980) K K-KK
46a0(980)-f0(980) ???????
a0(980)-f0(980) ?????
N.N.Achasov, G.N.Shestakov, PRL 92,182001 (2004)
???8MeV???
47????
????????? f0(980)aa0(980) ? a0(980)af0(980)
48xaf ? xfa ??
- ????
- 1. ?????????????????????
- 2. ?????????????? xfa ????xaf?????????????????
- ?? ?????? xaf ? xfa?
Jia-Jun Wu, B.S. Zou Phys.Rev.D78074017,2008
49????????????????
??????
????
????a00(980)-f0(980)?????????????????
50J/yga0(980)f
- ??????? J/yga0(980)f ?????
- ???? J/yggga0(980)f 2.5910-7
- ??? J/ygKKc.c.aa0(980)f 10-610-5
- J/ygf0(980)faa0(980)f 2.010-6
J.J. Wu, Qiang Zhao and B. S. Zou PRD 75,
114012 (2007)
512.2108J/yaa0(980)faphf
???? ?????
Up limit of x 1
52cc1aa0(980)p0af0(980)p0
CLEO Br(cc1aa0(980)p-)210-3 ?????
Br(cc1aa0(980)p0af0(980)p0)4.610-6
?????CB ??????? ?BES3???2.8108 ?
cc1,????????? 30, ????? 300 ??? ?
8 MeV
CLEO Collaboration, Phys. Rev. D75, 032002(2007)
BES3, PRD 83,032003
53(No Transcript)
54??
- ????
- ????????
- a. ?????????? S(1/2-)
- b. p p ap n p ??
- c. ??N?L???
- ???????
- a. a0(980)-f0(980) ??
- b. Triangle Singularity(TS)???
- ??
55h(1295), h(1405), h(1475)
- ??h????????????????????????????
- ??????????????????????
- ??,?????,???????????????,?????????????????
56h(1405)???????
J/yggh(1405) g gp0 f0(980) g gp0 p p
2.2 10-5 BES3
collaboration PRL 108,182001 (2012)
J/yggh(1405) g gp0 a0(980) g gp0 p0 h
8.4 10-5 (h(1405) g p a0(980) g p p h) /
(h(1405) g p p h) 0.56
CB collaboration PLB 358,389 (1995)
57???????????
h(1405)????????????
1. ??????????????? 2. ???pp????10MeV???
???????
3. h(1405)/h(1475) ??? h(1405)
???a0(980)p??,?h(1475)??? KK ???
58J/yggh(1405/1475) g gp KK
2.8 10-3
J/yggh(1405/1475) g gp p- h
3.0 10-4
J/yggh(1405/1475) g gp p p0
2.2 10-5
59J/yggh(1440) g gp KK
???? ??1420 MeV ??67 MeV
?????? ??1550 MeV ??166 MeV ( ??????? 1420
MeV ? )
60Triangle Singularity(TS)??
J/yggh(1405/1475) g gp p- h
J/yggh(1405/1475) g gp p p0
6110
100
J/yggh(1405/1475) g gp KK
J/yggh(1405/1475) g gp p- h
1
10 MeV
J/yggh(1405/1475) g gp p p0
62h(1405)/h(1475) ???????
??????????????,??????????????????????h(1405)
?h(1475) ?????????h(1440)?????????????
J. J. Wu, X. H. Liu, Q. Zhao and B. S. Zou, PRL
108,081803(2012)
63?????
- ?????????????? JP 1/2- ????1400 MeV???S?
- p p gp n p ????????N????????N???????
- ???????????????4.3 GeV? 11 GeV ?????????N?L?
????????????,? Lusdss 1575 MeV X
usdsu 1520 MeV .
??????????,????????
?????????????,???????????????
64?????
- a0-f0??????
- Triangle Singularity(TS)????h(1405)/h(1475)
???????
??BES3???J/y ????
??TS????????
?????h(1405)/h(1475) ???
65??