Does the bottomonium counterpart of X(3872) exist?
Does the bottomonium counterpart of X(3872) exist?
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X(3872) 的底鎓对应物是否存在?
DOI:
10.1103/physrevd.99.034005
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发表时间:
2018-10
影响因子:
5
通讯作者:
Xiao Zhiguang
中科院分区:
文献类型:
--
作者:
Zhou Zhi Yong;Chen Dian Yong;Xiao Zhiguang
Using the extended Friedrichs scheme, we study the bottomonium counterpart of $X(3872)$, $X_b$. In this scheme, a dynamically generated virtual state below the $B\bar B^*$ threshold is found, and there is a narrow lineshape peak at about 10615 MeV, just above the threshold in $B\bar B^*\to B\bar B^*$. However, we find that the virtual state is not the main reason for the peak but it is the form factor, which comes from the convolution of the interaction term and meson wave functions including the one from $\chi_{b1}(4P)$, that is responsible for the peak. The form factor also affects the lineshape of a dynamically generated broad resonance with its mass and width at about 10672 MeV and 78 MeV, respectively, and suppresses the magnitude of the peak generated by $\chi_{b1}(4P)$ with its mass and width being about 10771 MeV and 6 MeV. This study emphasizes the importance of the structure of the wave functions of high radial excitations in the analysis of the lineshapes, and provides a caveat that some signals may be generated from the structures of the form factors rather than from poles.
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DOI:
10.1140/epjc/s10052-013-2351-8
发表时间:
2012-12
期刊:
The European Physical Journal C
影响因子:
--
作者:
S. Coito;G. Rupp;E. Beveren
通讯作者:
S. Coito;G. Rupp;E. Beveren
DOI:
10.1016/0550-3213(69)90039-x
发表时间:
1969-05
期刊:
Nuclear Physics
影响因子:
--
作者:
L. Micu
通讯作者:
L. Micu
DOI:
--
发表时间:
2015
期刊:
--
影响因子:
--
作者:
K. Prokofiev
通讯作者:
K. Prokofiev
DOI:
10.1088/0954-3899/28/3/401
发表时间:
1998-06
期刊:
Journal of Physics G
影响因子:
--
作者:
A. Sirunyan;A. Tumasyan;W. Adam;F. Ambrogi;E. Asilar;T. Bergauer;J. Brandstetter;M. Dragicevic-
通讯作者:
A. Sirunyan;A. Tumasyan;W. Adam;F. Ambrogi;E. Asilar;T. Bergauer;J. Brandstetter;M. Dragicevic-
影响因子:
1.3
作者:
Xiao Zhiguang;Zhou Zhi-Yong
通讯作者:
Zhou Zhi-Yong