The longitudinal and transverse distributions of the pion wave function from the present experimental data on the pionphoton transition form factor  
Zhong, T; Wu, XG; 黄涛（理）; Huang, T  
2016  
Source Publication  EUROPEAN PHYSICAL JOURNAL C 
ISSN  14346044 
EISSN  14346052 
Volume  76Issue:7Pages:390 
Corresponding Author  黄涛（理） 
Subtype  Article 
Abstract  The lowenergy and highenergy behavior of the pionphoton transition form factor Fpi gamma (Q(2)) are sensitive to the transverse and longitudinal distributions of the pion wave function, respectively. Acareful study of Fpi gamma (Q(2)) shall thus provide helpful constraints on the properties of the pion wave function. In this paper, we present a combined analysis of the data on Fpi gamma (Q(2)) reported by the CELLO, the CLEO, the BABAR, and the BELLE Collaborations. It is performed by using the method of least squares. By using the combined measurements of the BELLE and CLEO Collaborations, the pion wave function longitudinal and transverse behavior can be fixed to a certain degree, i.e. we obtain beta is an element of [0.691, 0.757] GeV and B is an element of [0.00, 0.235] for Pchi 2 >= 90 %, where beta and B are two parameters of a convenient pion wave function model. It is noted that the distribution amplitude of such a pion wave function can mimic various longitudinal behaviors, as suggested in the literature under a proper choice of parameters. We observe that the CELLO, CLEO, and BELLE data are consistent with each other, all of which prefer the asymptoticlike distribution amplitude; while the BABAR data prefers a more broad distribution amplitude, such as the CZlike one. 
DOI  10.1140/epjc/s1005201642360 
WOS Keyword  Lightcone Formalism ; Gammaasteriskgamma ; Qcd Sumrules ; Distribution Amplitudes ; Exclusive Processes ; Meson ; Momentum ; Heavy 
Indexed By  SCI ; ADS 
Language  英语 
WOS ID  WOS:000379753500001 
ADS Bibcode  2016EPJC...76..390Z 
ADS URL  https://ui.adsabs.harvard.edu/abs/2016EPJC...76..390Z 
ADS CITATIONS  https://ui.adsabs.harvard.edu/abs/2016EPJC...76..390Z/citations 
inspireid  1400607 
Citation statistics 
Cited Times:7 [INSPIRE]
Cited Times:8 [ADS]

Document Type  期刊论文 
Identifier  http://ir.ihep.ac.cn/handle/311005/260635 
Collection  理论物理室 
Corresponding Author  黄涛（理） 
Affiliation  中国科学院高能物理研究所 
Recommended Citation GB/T 7714  Zhong, T,Wu, XG,Huang T,et al. The longitudinal and transverse distributions of the pion wave function from the present experimental data on the pionphoton transition form factor[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(7):390. 
APA  Zhong, T,Wu, XG,黄涛,&Huang, T.(2016).The longitudinal and transverse distributions of the pion wave function from the present experimental data on the pionphoton transition form factor.EUROPEAN PHYSICAL JOURNAL C,76(7),390. 
MLA  Zhong, T,et al."The longitudinal and transverse distributions of the pion wave function from the present experimental data on the pionphoton transition form factor".EUROPEAN PHYSICAL JOURNAL C 76.7(2016):390. 
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