[1]宋亚蒙,邹 静,胡志辉,等.四夸克成分对奇异夸克偶素能谱的影响[J].南京师大学报(自然科学版),2013,36(03):31-36.
　Song Yameng,Zou Jing,Hu Zhihui,et al.The Effect of Four-Quark Components on the s(-overs) Spectrum[J].Journal of Nanjing Normal University(Natural Science Edition),2013,36(03):31-36.
点击复制

四夸克成分对奇异夸克偶素能谱的影响()
分享到：

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第36卷
期数:
2013年03期
页码:
31-36
栏目:
物理学
出版日期:
2013-09-30

文章信息/Info

Title:
The Effect of Four-Quark Components on the s(-overs) Spectrum
作者:
宋亚蒙; 邹 静; 胡志辉; 平加伦
南京师范大学物理科学与技术学院,江苏 南京 210023
Author(s):
Song Yameng; Zou Jing; Hu Zhihui; Ping Jialun
School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China
关键词:
奇异夸克偶素; 耦合道效应; 3P0模型; 组份夸克模型
Keywords:
s(-overs) states; channel-coupling; 3P0 model; chiral quark model
分类号:
O572.33
摘要:
本文利用3P00模型,计算了四夸克成分对s(-overs)系统能谱的影响,并重新调整参数以符合实验数据.计算结果表明四夸克成分对s(-overs)能谱有较大的影响,对于激发态,其效应难以被模型参数吸收,计算结果也表明四夸克成分不大于15%,因此更多夸克的成分可以忽略.
Abstract:
The effect of four-quark component on the s(-overs) spectrum is studied in the framework of 3P0 model.The parameters of the chiral quark model are re-adjusted to fit the experimental data.The results show that the effect of four-quark component is rather large,and the effect cannot be absorbed by model parameters even for low-lying states.Our calculations also show that the percentage of four-quark components in the s(-overs) states is smaller than 15%,so the higher Fock components can be ignored.

参考文献/References:

[1] De Rujula A,Georgi H,Glashow S L.Hadron masses in a gauge theory[J].Phys Rev D,1975,12:147-162.
[2]Isgur N,Karl G.Positive parity excited baryons in a quark model with hyperfine interactions[J].Phys Rev D,1979,19:2 653-2 677.
[3]Brambilla N,Eidelman S,Heltsley B,et al.Heavy quarkonium:progress,puzzles,and opportunities[J].Eur Phys J C,2011,71:1534(1-182).
[4]Ping J,Deng C,Huang H,et al.Quark models for mesons[J].EPJ Web of Conf,2012,20:01007(1-12).
[5]Vijande J,Fernández F,Valcarce A.Constituent quark model study of the meson spectra[J].J Phy G,2005,31:481-506.
[6]Micu L.Decay rates of meson resonances in a quark model[J].Nucl Phys B,1969,10:521-526.
[7]Le Yaouanc A,Oliver L,Pene O,et al.Naive quark pair creation model of strong interaction vertices[J].Phys Rev D,1973,8:2 223-2 234.
[8]Le Yaouanc A,Oliver L,Pene O,et al.Naive quark pair creation model and baryon decays[J].Phys Rev D,1974,9:1 415-1 419.
[9]Ackleh E,Barnes T,Swanson E.On the mechanism of open flavor strong decays[J].Phys Rev D,1996,54:6 811-6 829.
[10]Geiger P,Swanson E S.Distinguishing among strong decay models[J].Phys Rev D,1994,50:6 855-6 862.
[11]Barnes T,Close F,Page P,et al.Higher quarkonia[J].Phys Rev D,1997,55:4 157-4 188.
[12]Barnes T,Godfrey S,Swanson E.Higher charmonia[J].Phys Rev D,2005,72:054026(1-20).
[13]Lu J,Deng W,Chen X,et al.Pionic decays of Dsj(2317),Dsj(2460)and Bsj(5718),Bsj(5765)[J].Phys Rev D,2006,73:054012(1-6).
[14]Close F,Swanson E.Dynamics and decay of heavy-light hadrons[J].Phys Rev D,2005,72:094004(1-8).
[15]Hayne C,Isgur N.Beyond the wave function at the origin:some momentum-dependent effects in the nonrelativistic quark model[J].Phys Rev D,1982,25:1 944-1 950.
[16]Jacob M,Wick G.On the general theory of collisions for particles with spin[J].Ann Phys,1959,7:404-428.
[17]Chen C,Chen X,Liu X,et al.Strong decays of charmed baryons[J].Phys Rev D,2007,75:094017(1-13).
[18]Capstick S,Roberts W.Quasi-two-body decays of nonstrange baryons[J].Phys Rev D,1994,49:4 570-4 586.
[19]Beringer J,Arguin J,Barnett R,et al.The review of particle physics[J].Phys Rev D,2012,86:010001(1-1526).

备注/Memo

备注/Memo:
收稿日期:2013-03-17.
基金项目:国家自然科学基金(11175088).
通讯联系人:平加伦,教授,博士生导师,研究方向:强子物理.E-mail:jlping@njnu.edu.cn
更新日期/Last Update: 2013-09-30