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Nuclear Physics A 755 (2005) 665c–668c 0375-9474/$ – see front matter © 2005 Elsevier B.V. All rights reserved. doi:10.1016/j.nuclphysa.2005.03.091

Baryonic Resonances from Baryon Decuplet-Meson Octet Interactions and the Exotic Resonance , ,

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Page 1: Baryonic Resonances from Baryon Decuplet-Meson Octet Interactions and the Exotic Resonance , ,

! " # $ % &&'() *+', !

# - !. -! /## . 0 ". 1 - 20 ! .- - 1 ! 3 4 . 2 - 5678 ! # - ! - 1 ! #- 9 : - ! ! .- - 678 0 0 2 #!!0 !!0 . 2! 2! 1 #2 1 *"

! 20 - $! ; ! - <6(&'8 - =6)&'8 - >6+,'8 . !! 3 1 . - ! ! - !# 1 - 2 - - ! 1 - - ! 1 - # 1 .- ! 0.- 9 - ! 2 !

- 1 0 -? -! 0! 1 - 20 - 2 0 1! - ! # 1 20 .- 1 1 - ! - 0"! # 1 0 !. !0# .-- ?!10 ?2 20 @A7B ! - ! 1 - -? - ". # 1- 20 - ! - ! - 1! 10 C

! - 6)7)8 - =6*')8 - =6+,'8 - >6+&'8 - <6+&'8 @*A,B D !0 0 - - - 2! 1 0#". !# 2 1 . - # -"! /## E. ". ! 2 . 1 - .- - 20 ! @(B .-- -! 0 ? - 1 - . !! . . ! - 6)&'8 6,''8 F6,''8- 0 !# 2-# - - ! -#- - - ! 1 20 - ! - -

3 - 1 0 0 @GB 1 - ". 1 - 20 ! .- - # - !. -! /## .--

Nuclear Physics A 755 (2005) 665c–668c

0375-9474/$ – see front matter © 2005 Elsevier B.V. All rights reserved.doi:10.1016/j.nuclphysa.2005.03.091

Page 2: Baryonic Resonances from Baryon Decuplet-Meson Octet Interactions and the Exotic Resonance , ,

1350 1450 1550 1650 1750 1850 1950 2050 2150 Re zR (MeV)

0

50

100

150

200

−Im

zR (

MeV

)

S=0, I=1/2S=−1, I=1S=−1, I=0S=−2, I=1/2

Octet

? (1673)

M0=1382 MeVm0=368 MeV

1350 1450 1550 1650 1750 1850 1950 2050 2150 Re zR (MeV)

0

50

100

150

200

−Im

zR (

MeV

)

S=0, I=3/2S=−1, I=1S=−2, I=1/2S=−3, I=0

Decuplet

?

(1738)

M0=1382 MeVm0=368 MeV

# : 1 - ! - # ! 1 9 ! 1 - 678 2 #

1 - 3 2 # H. - ! . .!! - !1 - .- "! ! # ! !# - 20 ! - !

- ! 1 - I - ! ? 2 - 1!4!!# 0 ! - ! - - - !0 1 - 2 - !!0 #!H 20 ! 1 1.-- . ! H ! 3 - ! ! -

.-- # 0!!0 20 - 20 -# 1 ! 1 - - ! ! 9 J - - - . 0 "!!0 # 1 678 0 .- - 1 - 20 ?! - .- - 1 - - . 1 ! - &, .-! - . ! - 7) - 678 0 !! 1 - 678!! # - 2 .- .- % . #!!0 2 678 0 0 20 -## - - # 0 2 - .- 9 # ! # # ! : - ! ! .-- ! - -0! - 4! 4# - 0 - !!. - ! - 678 0 # !-#- - # 1 .- - 0 0 2 . ! 4 ! .-- !0 1 1 0 0 2 # - - !# - 0 3 - ! ! - 1 - ! 1 .- - !# 1 - "

- 9 ! - ! . 1 - !!. " 1 ! 0 .- ! 20 - 0 ! ! 1 - 0 - ! 2 - - 1 0 1 - ! .-- !!. !0 10 - 1 .- . - - -!

S. Sarkar et al. / Nuclear Physics A 755 (2005) 665c–668c666c

Page 3: Baryonic Resonances from Baryon Decuplet-Meson Octet Interactions and the Exotic Resonance , ,

1300 1500 1700 1900 2100ECM (MeV)

0

0.01

0.02

0.03

0.04

0.05

0.06

|T|2 (

1/M

eV2 )

∆πΣ*

K∆π (with width)Σ*

K (with width)

(S,I)=(0,1/2)

N*(1520)

1300 1500 1700 1900 2100ECM (MeV)

0

0.001

0.002

0.003

0.004

0.005

|T|2 (

1/M

eV2 )

∆πΣ*

K∆η

(S,I)=(0,3/2)

∆(1700)

∆ (?)

1300 1500 1700 1900 2100ECM (MeV)

0

0.005

0.01

0.015

0.02

0.025

|T|2 (

1/M

eV2 )

Σ∗πΞ*

K(S,I)=(−1,0)

Λ(1520)

1300 1500 1700 1900 2100ECM (MeV)

0

0.2

0.4

0.6

0.8

1|T

|2 (1/

MeV

2 )∆KΣ∗πΣ∗ηΞ*

K

(S,I)=(−1,1) −

Σ(1670)

Σ(1940)

1300 1500 1700 1900 2100ECM (MeV)

0

0.05

0.1

0.15

|T|2 (

1/M

eV2 )

Σ*K

Ξ∗πΞ∗ηΩK

(S,I)=(−2,1/2) −

Ξ(1820)

Ξ (?)

1300 1500 1700 1900 2100ECM (MeV)

0

0.02

0.04

0.06

0.08

|T|2 (

1/M

eV2 )

Ξ*K

Ωπ

(S,I)=(−3,0) −

Ω (?)

# & %! 1 7& # 0!!0 ! 20 " !

S. Sarkar et al. / Nuclear Physics A 755 (2005) 665c–668c 667c

Page 4: Baryonic Resonances from Baryon Decuplet-Meson Octet Interactions and the Exotic Resonance , ,

. 0 - $! I 6$I8 ! .1 - 1 1 - ! !# - ! . ! 1 - 1 - 6)&'8 F6,''8 =6)&'8 >6+,'8 >6G*'8 <6(&'8 2! - $I 3 ! ! 1 - 1 1 C 7 C ' - K6&&)'8 - 2 1 - ? 2 2!0 1 - ! 0 .- 1 .- - ! .- 1 - K6&&)'8- # ! 1 9 ! 1 # 1 1- #0 -. 4# &3 ! 1 ! . !! 4 20 ! - ! !

.-- - - $I 1 - 2 .--! :10 - Æ!0 - 2 2 . - - F6)''8.- .- 7'' - <6&+'8 .- .- 1 2 *' - 2 - 1 2 - 4 2 1 !# #- - F- ! - 2 1 . 0 !# 1 - 20" - !

.-- ! 1! - 4 .- 1- 1 - 2-# !2! 3 - 1 - - 0!!0 # ! 0 #!0 - ! .- - - -! 2 - #0.-- - ?!10 !0 #! - ! ?2 "20 /!0 . - 0 # # - F @'B 1

C C .-- -. ! - -0! J - ! F - !# - - # F C & 3 ## - - . ! 2 F =F >F ! 1 - . L ?L !-#- Æ !0 - 20 .- - 2 #

D M $ I # ! 3 3 D! $-0 % )G* 6GG)8 7&)N D M 3 3 3 D! $-0 % +& 6GG,8 &G,

& % J D! $-0 % +7) 6GG(8 GG7 % !! "; O $-0 / I )'' 6&''8 &+7* $-0 J +) 6&''&8 '7)&'*) % !! % J ; D! $-0 % ,&) 6&''78

(+ ;"J /H D $-0 / I )(& 6&''*8 *G, % J I -! $-0 / I )&, 6&''&8 GG @"2

I )7' 6&''&8 &+'BN% J I -! $-0 J / (G 6&''&8&)&''

( M! /H $-0 / I )() 6&''*8 &*7G PQ!"-R'*','&)' PQ!"-R'*'*'&7

S. Sarkar et al. / Nuclear Physics A 755 (2005) 665c–668c668c