JP=21－Pentaquarks in Jaffe and Wilczek's Diquark Model

ZHANG Ao; LIU Yan-Rui; HUANG Peng-Zhi; DENG Wei-Zhen; CHEN Xiao-Lin; ZHU Shi-Lin

Chinese Physics C> 2005, Vol. 29> Issue(3) : 250-257

JP=21－Pentaquarks in Jaffe and Wilczek's Diquark Model

Department of Physics,Peking University,Beijing 100871,China2 Department of Physics,National Taiwan University,Taipei 106,China

Abstract
HTML
Reference
Related

PDF

Abstract：
If Jaffe and Wilczek's diquark picture for Θ5+ pentaquark is correct, there should also exist a SU^F(3) pentaquark octet and singlet with no orbital excitation between the diquark pair, hence JP=12-.These states are lighter than the Θ5+ anti-decuplet and lie close to the orbitally excited (L=1) three-quark states in the conventional quark model.We calculate their masses and magnetic moments and discuss their possible strong decays using the chiral Lagrangian formalism. Among them two pentaquarks with nucleon quantum numbers may be narrow. Selection rules of strong decays are derived. We propose the experimental search of these nine additional JP=12- baryon states. Especially there are two additional JP=12- Λ baryons around Λ(1405).We also discuss the interesting possibility of interpreting Λ(1405) as a pentaquark.The presence of these additional states will provide strong support of the diquark picture for the pentaquarks. If future experimental searches fail, one has to re-evaluate the relevance of this picture for the pentaquarks.

References

[1]

. Nakano T et al . Phys. Rev.Lett . ,2003 ,91 :0120022.　Barmin V V et al . Phys. Atom. Nucl . , 2003 , 66 : 1715 —1718 ; Yad.Fiz. ,2003 ,66 :1763 —17663.　Stepanyan S et al . Phys. Rev.Lett . ,2003 ,91 :2520014.　Barth J et al . hep-ph/ 03070835.　Aratayn A E ,Dololenko A G,Kubantsev M A. Phys. Atom. Nucl . ,2004 ,67 :682 —687 ;Yad. Fiz. ,2004 ,67 :704 —7096.　Kubarovsky V et al . Phys. Rev.Lett . ,2004 ,92 :032001 ; Erratum-ibid. ,2004 ,92 :0499027.　Airapetian A et al . Phys.Lett . ,2004 ,B585 :2138.　Aleev A et al . hep-ex/ 04010249.　COSY-TOF Collaboration. Phys.Lett . ,2004 ,B595 :127 —13410.　BAI J Z et al . Phys. Rev. ,2004 ,D70 :01200411.　Knopfle K T et al . J . Phys. ,2004 ,G30 :S1363 —S136612.　NA49 Collaboration. Phys. Rev.Lett . ,2004 ,92 :04200313.　Fischer H G,Wenig S. Eur. Phys. J . ,2004 ,C37 :133 —14014.　H1 Collaboration. Phys.Lett . ,2004 ,B588 :1715.　Strottman D. Phys. Rev. , 1979 , D20 : 748 ; Wybourne B G. hep-ph/030717016.　Bijker R ,Giannini MM,Santopinto E. hep-ph/ 0310281 ,Eur. Phys. J . ,A ,to be published17.　Buccella F ,Sorba P.Mod. Phys.Lett . ,2004 ,A19 :154718.　Csikor F ,Fodor Z,Katz S D ,Kovacs T G. JHEP. ,2003 ,0311 :070 ;Sasa-ki S ,Phys. Rev.Lett . ,2004 ,93 :15200119.　Chiu T W,Hsieh T H. hep-ph/ 040302020.　Diakonov D ,Petrov V ,Ployakov M. Z. Phys. ,1997 ,A359 :30521.　Praszalowicz M. In : Skyrmions and Anomalies Jezabek M, Praszalowicz M. World Scientific , 1987. 112 —131 ; Praszalowicz M. Phys. Lett . ,2003 ,B575 :23422.　Ellis J ,Karliner M,Praszalowicz M. JHEP ,2004 ,0405 :00223.　Cohen T D ,Lebed R F. Phys.Lett . ,2004 ,B578 :150 —155 ;Cohen T D.Phys.Lett . ,2004 ,B581 :175 —181 ;hep-ph/ 031219124.　Itzhaki N et al . Nucl . Phys. ,2004 ,B684 :264 —28025.　Jaffe R ,Wilczek F. Phys. Rev. Lett . , 2003 , 91 : 232003 ; Phys. Rev. ,2004 ,D69 :11401726.　Karliner M,Lipkin H J . hep-ph/ 0307234 ,hep-ph/ 030734327.　Shuryak E ,Zahed I. Phys.Lett . ,2004 ,B589 :21 —2728.　Stancu F ,Riska D O. Phys. Lett . ,2003 , B575 : 242 —248 ; Hosaka A. Phys.Lett . ,2003 ,B571 :55 —6029.　Carlson C E et al . Phys. Rev. ,2004 ,D70 :03750130.　LIU Y X,LI J S ,BAO C G. hep-ph/ 0401197.31.　ZHU Shi-Lin. Phys. Rev.Lett . ,2003 ,91 :23200232.　Matheus R D et al . Phys.Lett . ,2004 ,B578 :323 —329 ;Sugiyama J ,Doi T,Oka M. Phys.Lett . ,2004 ,B581 :167 —17433.　SONG X C ,ZHU Shi-Lin. hep-ph/ 040309334.　HUANG F ,ZHANG Z Y,YU YW,ZOU B S. Phys.Lett . ,2004 ,B586 :69 —7435.　Carlson C E et al . Phys.Lett . ,2003 ,B573 :10136.　WU B ,MA B Q. hep-ph/ 031133137.　YU B G,Choi T K,J I C R. Phys. Rev. ,2004 ,C70 :045205 ;Thomas A W,Hicks K, Hosaka A. Prog. Theor. Phys. ,2004 ,111 : 291 —293 ;OhY,Kim H ,Lee S H. hep-ph/ 0312229 ; Hanhart C et al . Phys. Lett . ,2004 ,B590 :39 —44 ;ZHAO Q ,Al-Khalili J S. Phys.Lett . ,2004 ,B585 :91 —98 ; Rekalo M P , Tomasi-Gustafsson E. J . Phys. , 2004 , G30 :459 —1464 ;Nam S I ,Hosaka A ,Kim H C. hep-ph/ 0401074 ;Mehen T,Schat C. Eur. Phys. J . ,2004 ,C33 :75 —9038.　Nussinov S. hep-ph/ 0307357 ;Arndt R A ,Strakovsky I I ,Workman R L.Phys. Rev. ,2003 ,C68 :042201 ; Haidenbauer J , Krein G. Phys. Rev. ,2003 ,C68 :052201 ;Cahn R N ,Trilling G H. Phys. Rev. ,2004 ,D69 :01150139.　Karliner M,Lipkin H J . Phys.Lett . ,2004 ,B586 :303 —30640.　Jennings B ,Maltman K. Phys. Rev. ,2004 ,D69 :09402041.　Close F. hep-ph/ 0311087 ; Close F E ,Dudek J J . Phys. Lett . , 2004 ,B586 :75 —8242.　Cohen T D. hep-ph/ 040205643.　Stewart I ,Wssling M,Wise M. Phys.Lett . ,2004 , B590 :185 —18944.　HE X G,LI X Q. Phys. Rev. ,2004 ,D70 :03403045.　HUANG P Z,DENGW Z,CHEN XL ,ZHU Shi-Lin. Phys. Rev. ,2004 ,D69 :074004 ;LIU Y R ,HUANG P Z,DENG W Z,CHEN X L , ZHUShi-Lin. Phys. Rev. ,2004 ,C69 : 035205 ;LI W W, et al . High Energy Phys. and Nucl . Phys. ,2004 ,28 :918 (in Chinese) ;HUANG P Z,LIU YR ,DENG W Z, CHEN X L , ZHU Shi-Lin. Phys. Rev. , 2004 , D70 :034003(李文武等. 高能物理与核物理,2004 ,28 :918)(李文武等,高能物理与核物理, 2004, 28:918 )46.　Coleman S ,Glashow S L. Phys. Rev.Lett . ,1961 ,6 :42347.　Lee S H ,Kim H ,Oh Y. hep-ph/ 040213548.　Particle Dada Group. Phys. Rev. ,2002 ,D66 :01000149.　Cohen T D. Talk at the Conference of“Pentaquark States :Structure and Properties”. Trento ,Italy ,Feb. ,2004

[1]	ZHANG Zong-Ye , WANG Wen-Ling , HUANG Fei , YU You-Wen , LIU Feng . Chiral Quark Model Study of udss Tetraquark States. Chinese Physics C, 2007, 31(9): 887-891.
[2]	GUO Yan-Rui , LI Xi-Guo , ZHONG Xian-Hui , LIU Zi-Yu , JIN Gen-Ming . Effective Masses of Pentaquark Θ⁺ in Nuclear Matter. Chinese Physics C, 2007, 31(8): 724-730.
[3]	LI Gui-Jun , CHEN Hong , ZOU Bing-Song , JIANG Huan-Qing , HUANG Shu-Yi . The N^*(1710) contribution to the Θ⁺ production cross sections in p-p collisions. Chinese Physics C, 2006, 30(6): 542-547.
[4]	GUO Yan-Rui , LI Xi-Guo , GAO Yuan , LIU Jian-Ye . Effective Mass of Pentaquark Θ+ in Dense Matter. Chinese Physics C, 2005, 29(6): 533-536.
[5]	LU Xiao-Rui , MAO Ya-Jun , MA Bo-Qiang . Pentaquark Update. Chinese Physics C, 2005, 29(2): 210-218.
[6]	XIAO Shu-Dong , ZHU Sheng-Jiang , YANG Li-Ming , ZHANG Zheng , JIANG Zhuo , CHE Xing-Lai , U Yong-Nan . High-Spin States and Negative Parity Levels in Neutron-Rich ^116,118,120Cd Nuclei. Chinese Physics C, 2004, 28(1): 37-41.
[7]	MAO Ya-Jun . Search for the Pentaquark at the HERMES. Chinese Physics C, 2004, 28(12): 1332-1335.
[8]	LI Wen-Wu , LIU Yan-Rui , HUANG Peng-Zhi , DENG Wei-Zhen , CHEN Xiao-Lin , ZHU Shi-Lin . Magnetic Moments of JP=3/2+ Pentaquarks. Chinese Physics C, 2004, 28(9): 918-926.
[9]	HE Chuang-Ye , WEN Shu-Xian , ZHU Li-Hua , WANG Zhi-Min , LI Guang-Sheng , MA Rui-Gang , WU Xiao-Guang , YUAN Guan-Jun , YANG Chun-Xiang , WANG Yue , ZHANG Zhen-Long , MENG Rui , , , . Signature Splitting and Inversion and Back Bending in Negative Sideband in ⁸⁰Rb. Chinese Physics C, 2003, 27(9): 784-788.
[10]	XU Yan-Bing , LIAO Ji-Zhi . Studies on the HF States and the Negative-Parity Spectra of Even Even Cd Nuclei. Chinese Physics C, 2003, 27(2): 142-146.
[11]	XU Yan-Bing , LIAO Ji-Zhi . Studies on the HF States and the Negative Parity Bands of Even Even Ge and Se Nuclei. Chinese Physics C, 2002, 26(6): 613-619.
[12]	YU You-Wen , ZHANG Zong-Ye , LI Qiang-Bing . ΩN Bound State in SU(3) Quark Model. Chinese Physics C, 2002, 26(10): 1041-1045.
[13]	WU XingJu , LIANG YuSheng , XU JinZhang , CHEN XingQu , XING Zheng . Study of the Negative-Parity Yrast States in Odd-A Lu-Isotopes. Chinese Physics C, 2000, 24(4): 342-346.
[14]	Yu Youwen , Zhang Zongye , Yuan Xiuqing . Study of Six Quark Cluster States in Chiral SU(3) Quark Model. Chinese Physics C, 1999, 23(9): 859-864.
[15]	Liu Zhong , Sun Xiangfu , Guo Yingxiang , Lei Xiangguo , Chen Xinfeng , Zhou Xiaohong , Zhang Yuhu , Jin Hanjuan , Luo Yixiao , Wen Shuxian , Yuan Guanjun , Li Guangsheng , Yang Chunxiang , Liu Xiang . Lifetime Measurement of the Negative-Parity Isomers in ¹¹⁷Xe. Chinese Physics C, 1997, 21(10): 881-885.
[16]	Liu Wenqin , Ma Zhongyu . Strange Quark Effects in Parity-Violiating QuasielasticElectron Scattering. Chinese Physics C, 1997, 21(10): 937-945.
[17]	Shi Zongren , Wan Shuying . Negative Parity States of Collective Motion in Actinide Nuclei. Chinese Physics C, 1995, 19(5): 438-446.
[18]	ZENG Bao-Sheng , HUANG Qing , GONG Xue-Hui . MESON AND DI-QUARK CONTRIBUTION TO R(σ_L/σ_T) IN DEEP INELASTIC SCATTERING. Chinese Physics C, 1984, 8(2): 235-240.
[19]	WU RUA-CHUAN . INTERACTING BOSON MODEL FOR ROTATIONAL STATES OF NEGATIVE PARITY. Chinese Physics C, 1982, 6(5): 601-608.
[20]	LI ZI-PING . THE G_s PARITY OF STRANGE MESONS AND THE SELECTION RULE IN STRONG DECAY OF RESONANCE STATE. Chinese Physics C, 1981, 5(3): 372-373.

Access

Get Citation

ZHANG Ao, LIU Yan-Rui, HUANG Peng-Zhi, DENG Wei-Zhen, CHEN Xiao-Lin and ZHU Shi-Lin. JP=21－Pentaquarks in Jaffe and Wilczek's Diquark Model[J]. Chinese Physics C, 2005, 29(3): 250-257.

ZHANG Ao, LIU Yan-Rui, HUANG Peng-Zhi, DENG Wei-Zhen, CHEN Xiao-Lin and ZHU Shi-Lin. JP=21－Pentaquarks in Jaffe and Wilczek's Diquark Model[J]. Chinese Physics C, 2005, 29(3): 250-257. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2004-09-15
Revised: 1900-01-01

Article Metric

Article Views(4167)
PDF Downloads(550)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

JP=21－Pentaquarks in Jaffe and Wilczek's Diquark Model

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

JP=21－Pentaquarks in Jaffe and Wilczek's Diquark Model

Corresponding author: ZHU Shi-Lin,

HTML

目录