scholarly journals The photon to pseudoscalar meson transition form factors

2011 ◽  
Vol 219-220 ◽  
pp. 2-9 ◽  
Author(s):  
P. Kroll
Keyword(s):  
Pseudoscalar Meson ◽  
Form Factors ◽  
Transition Form

scholarly journals Gamma-gamma physics and meson transition form factors

2020 ◽  
Vol 234 ◽  
pp. 01008
Author(s):  
Andrzej Kupsc
Keyword(s):  
Pseudoscalar Meson ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Neutral Pion ◽  
Form Factors ◽  
Photon Production ◽  
Transition Form ◽  
Muon Anomalous Magnetic Moment ◽  
Two Photon ◽  
Radiative Processes

I summarize recent experimental results for two photon production of mesons. These processes include the neutral pion, η and η′ transition form factors and two photon production of pseudoscalar meson pairs. In addition I discuss the related hadronic and radiative processes. All these processes are attracting attention of experiment and theory due their relevance for the hadronic light-by-light contribution to the muon anomalous magnetic moment.

scholarly journals Pseudoscalar meson transition form factors in nonperturbative QCD approach

2012 ◽  
Vol 225-227 ◽  
pp. 141-145 ◽  
Author(s):  
A.E. Dorokhov ◽  
A.E. Radzhabov ◽  
A.S. Zhevlakov
Keyword(s):  
Pseudoscalar Meson ◽  
Form Factors ◽  
Transition Form ◽  
Nonperturbative Qcd

scholarly journals Pseudoscalar meson transition form factors

2012 ◽  
Vol 67 (2) ◽  
pp. 418-423 ◽  
Author(s):  
S. Dubnicka ◽  
A.Z. Dubnickova ◽  
A. Liptaj
Keyword(s):  
Pseudoscalar Meson ◽  
Form Factors ◽  
Transition Form

scholarly journals Pseudoscalar meson transition form factors

2004 ◽  
Vol 126 ◽  
pp. 71-75 ◽  
Author(s):  
A.Z. Dubničková ◽  
S. Dubnička ◽  
G. Pancheri ◽  
R. Pekárik
Keyword(s):  
Pseudoscalar Meson ◽  
Form Factors ◽  
Transition Form

scholarly journals Heavy + light pseudoscalar meson semileptonic transitions

2021 ◽  
Vol 81 (12) ◽  
Author(s):  
Zhen-Ni Xu ◽  
Zhu-Fang Cui ◽  
Craig D. Roberts ◽  
Chang Xu
Keyword(s):  
Higgs Boson ◽  
Pseudoscalar Meson ◽  
Branching Fractions ◽  
Form Factors ◽  
Transition Form ◽  
Heavy Mesons ◽  
Quark Masses ◽  
Initial States ◽  
Goldstone Modes ◽  
Current Quark

AbstractA symmetry-preserving regularisation of a vector $$\times $$ × vector contact interaction (SCI) is used to deliver a unified treatment of semileptonic transitions involving $$\pi $$ π , K, $$D_{(s)}$$ D ( s ) , $$B_{(s,c)}$$ B ( s , c ) initial states. The framework is characterised by algebraic simplicity, few parameters, and the ability to simultaneously treat systems from Nambu–Goldstone modes to heavy+heavy mesons. Although the SCI form factors are typically somewhat stiff, the results are comparable with experiment and rigorous theory results. Hence, predictions for the five unmeasured $$B_{s,c}$$ B s , c branching fractions should be a reasonable guide. The analysis provides insights into the effects of Higgs boson couplings via current-quark masses on the transition form factors; and results on $$B_{(s)}\rightarrow D_{(s)}$$ B ( s ) → D ( s ) transitions yield a prediction for the Isgur–Wise function in fair agreement with contemporary data.

scholarly journals Progress in the Calculation of Nucleon Transition form Factors

2016 ◽  
Vol 57 (10) ◽  
pp. 965-973 ◽  
Author(s):  
Gernot Eichmann
Keyword(s):  
Form Factors ◽  
Transition Form

A detailed analysis ofD-,D s - andB-meson transition form factors and the determination of |V cb |

1990 ◽  
Vol 48 (4) ◽  
pp. 663-671 ◽  
Author(s):  
J. G. Körner ◽  
K. Schilcher ◽  
M. Wirbel ◽  
Y. L. Wu
Keyword(s):  
Detailed Analysis ◽  
Form Factors ◽  
Transition Form

scholarly journals Electromagnetic transition form factors of baryons in a relativistic Faddeev approach

2018 ◽  
Vol 181 ◽  
pp. 01013 ◽  
Author(s):  
Reinhard Alkofer ◽  
Christian S. Fischer ◽  
Hèlios Sanchis-Alepuz
Keyword(s):  
Ground State ◽  
Bound States ◽  
Body Wave ◽  
Form Factors ◽  
Wave Functions ◽  
Electromagnetic Form Factors ◽  
Transition Form ◽  
Electromagnetic Transition ◽  
Three Body ◽  
Gluon Interaction

The covariant Faddeev approach which describes baryons as relativistic three-quark bound states and is based on the Dyson-Schwinger and Bethe-Salpeter equations of QCD is briefly reviewed. All elements, including especially the baryons’ three-body-wave-functions, the quark propagators and the dressed quark-photon vertex, are calculated from a well-established approximation for the quark-gluon interaction. Selected previous results of this approach for the spectrum and elastic electromagnetic form factors of ground-state baryons and resonances are reported. The main focus of this talk is a presentation and discussion of results from a recent investigation of the electromagnetic transition form factors between ground-state octet and decuplet baryons as well as the octet-only Σ0 to Λ transition.

scholarly journals Study of nonleptonic B(s)∗→ M1M2 (M = D,Ds,π,K) weak decays with factorization approach

2015 ◽  
Vol 30 (27) ◽  
pp. 1550162 ◽  
Author(s):  
Qin Chang ◽  
Pan-Pan Li ◽  
Xiao-Hui Hu ◽  
Lin Han
Keyword(s):  
Flavor Physics ◽  
Branching Fractions ◽  
Form Factors ◽  
Approximation Formula ◽  
Heavy Flavor ◽  
Transition Form ◽  
Factorization Approach ◽  
Decay Modes ◽  
Weak Decays ◽  
Belle Ii

Motivated by the experiments of heavy flavor physics at running LHC and upgrading SuperKEKB/Belle-II in the future, the nonleptonic [Formula: see text] [Formula: see text] weak decays are studied in this paper. The amplitudes are calculated with factorization approach, and the transition form factors [Formula: see text] are evaluated within BSW model. With the reasonable approximation [Formula: see text], our predictions of branching fractions are presented. Numerically, the CKM-favored tree-dominated [Formula: see text] and [Formula: see text] decays have the largest branching fractions of the order [Formula: see text], and hence will be firstly observed by forthcoming Belle-II experiment. However, most of the other decay modes have the branching fractions [Formula: see text] and thus are hardly to be observed soon. Besides, for the possible detectable [Formula: see text] decays with branching fractions [Formula: see text], some useful ratios, such as [Formula: see text], etc. are presented and discussed in detail.

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