gamma*rho(0) > pi(0) transition form factor in extended AdS/QCD models  
Zuo, F; Jia Y(贾宇); 黄涛(理); Jia, Y; Huang, T  
2010  
Source Publication  EUROPEAN PHYSICAL JOURNAL C 
Volume  67Issue:12Pages:#REF! 
Corresponding Author  Zuo, F (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China. 
Subtype  Article 
Abstract  The gamma*rho(0) > pi(0) transition form factor is extracted from recent result for the gamma*gamma*pi(0) form factor obtained in the extended hardwall AdS/QCD model with a ChernSimons term. In the large momentum region, the form factor exhibits a 1/Q(4) behavior, in accordance with the perturbative QCD analysis, and also with the LightCone Sum Rule (LCSR) result if the pion wave function exhibits the same endpoint behavior as the asymptotic one. The appearance of this power behavior from the AdS side and the LCSR approach seem to be rather similar: both of them come from the "soft" contributions. Comparing the expressions for the form factor in both sides, one can obtain the duality relation z proportional to root u(1  u), which is compatible with one of the most important relations of the LightFront holography advocated by Brodsky and de Teramond. In the moderate Q(2) region, the comparison of the numerical results from both approaches also supports a asymptoticlike pion wave function, in accordance with previous studies for the gamma*gamma*pi(0) form factor. The form factor at zero momentum transfer gives the. gamma*rho(0)pi(0) coupling constant, from which one can determine the partial width for the rho(0)(omega) > pi(0)gamma decay. We also calculate the form factor in the timelike region, and study the corresponding Dalitz decays rho(0)(omega) > pi(0)e(+)e(), pi(0)mu(+)mu(). Although all these results are obtained in the chiral limit, numerical calculations with finite quark masses show that the corrections are extremely small. Some of these calculations are repeated in the HirnSanz model and similar results are obtained. 
Subject Area  Physics 
DOI  10.1140/epjc/s1005201012777 
Indexed By  SCI ; INSPIREHEP ; ADS 
WOS Subject  Physics, Particles & Fields 
WOS ID  WOS:000277300300021 
ADS Bibcode  2010EPJC...67..253Z 
ADS URL  https://ui.adsabs.harvard.edu/abs/2010EPJC...67..253Z 
ADS CITATIONS  https://ui.adsabs.harvard.edu/abs/2010EPJC...67..253Z/citations 
inspireid  834745 
inspireURL  https://inspirehep.net/literature/834745 
Citation statistics 
Cited Times:21 [INSPIRE]
Cited Times:20 [ADS]

Document Type  期刊论文 
Identifier  http://ir.ihep.ac.cn/handle/311005/227215 
Collection  理论物理室 
Recommended Citation GB/T 7714  Zuo, F,Jia Y,Huang T,et al. gamma*rho(0) > pi(0) transition form factor in extended AdS/QCD models[J]. EUROPEAN PHYSICAL JOURNAL C,2010,67(12):#REF!. 
APA  Zuo, F,贾宇,黄涛,Jia, Y,&Huang, T.(2010).gamma*rho(0) > pi(0) transition form factor in extended AdS/QCD models.EUROPEAN PHYSICAL JOURNAL C,67(12),#REF!. 
MLA  Zuo, F,et al."gamma*rho(0) > pi(0) transition form factor in extended AdS/QCD models".EUROPEAN PHYSICAL JOURNAL C 67.12(2010):#REF!. 
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