# Joint resummation for pion wave function and pion transition form factor

@article{Li2013JointRF, title={Joint resummation for pion wave function and pion transition form factor}, author={Hsiang-nan Li and Yue Shen and Yu-Ming Wang}, journal={Journal of High Energy Physics}, year={2013}, volume={2014}, pages={1-32} }

A bstractWe construct an evolution equation for the pion wave function in the kT factorization formalism, whose solution sums the mixed logarithm ln x ln kT to all orders, with x (kT) being a parton momentum fraction (transverse momentum). This joint resummation induces strong suppression of the pion wave function in the small x and large b regions, b being the impact parameter conjugate to kT, and improves the applicability of perturbative QCD to hard exclusive processes. The above effect is…

## 35 Citations

### Power corrections to pion transition form factor in perturbative QCD approach

- PhysicsPhysical Review D
- 2019

In this paper we calculate the power corrections to the pion transition form factor within the framework of perturbative QCD approach on the basis of $k_T$ factorization. The power suppressed…

### Rapidity resummation for B-meson wave functions

- Physics
- 2014

Transverse-momentum dependent (TMD) hadronic wave functions develop light-cone divergences under QCD corrections, which are commonly regularized by the rapidityζ of gauge vector defining the…

### Joint Resummation for TMD Wave Function of Pion

- Physics
- 2015

QCD corrections to transverse-momentum-dependent pion wave function develop the mixed double logarithm , when the gluon emission is collinear to the energetic pion. The fist scheme-independent kT…

### Subleading power corrections to the pion-photon transition form factor in QCD

- Physics
- 2017

A bstractWe reconsider QCD factorization for the leading power contribution to the γ*γ → π0 form factor Fγ*γ→π0(Q2) at one loop using the evanescent operator approach, and demonstrate the equivalence…

### Perturbative corrections to Λb → Λ form factors from QCD light-cone sum rules

- Physics
- 2015

A bstractWe compute radiative corrections to Λb → Λ from factors, at next-to-leading logarithmic accuracy, from QCD light-cone sum rules with Λb-baryon distribution amplitudes. Employing the…

### QCD calculations of B → π, K form factors with higher-twist corrections

- PhysicsJournal of High Energy Physics
- 2019

A bstractWe update QCD calculations of B → π, K form factors at large hadronic recoil by including the subleading-power corrections from the higher-twist B-meson light-cone distribution amplitudes…

### Next-to-leading order corrections to B→ρ transition in the kT factorization

- Computer SciencePhysical Review D
- 2019

It is shown that the soft divergence from the specific NLO diagrams will cancel each other at the quark level, while the remaining collinear divergence can be absorbed into the NLO wave functions.

### Quasi-two-body decays B(s)→Pf2(1270)→Pππ in the perturbative QCD approach

- PhysicsPhysical Review D
- 2018

In this work, we calculate the CP-averaged branching ratios and direct CP-violating asymmetries of the quasi-two-body decays B(s)→Pf2(1270)→Pππ with the two-pion distribution amplitude ΦππD by using…

### Pion and kaon form factors in the perturbative QCD approach

- PhysicsPhysical Review D
- 2019

We present the most accurate calculation for the pion and kaon electromagnetic form factors in the framework of perturbative QCD, where the power corrections up to twist 4 of the meson distribution…

### Non-dipolar gauge links for transverse-momentum-dependent pion wave functions

- Physics
- 2016

I discuss the factorization-compatible definitions of transverse-momentumdependent (TMD) pion wave functions which are fundamental theory inputs entering QCD factorization formulae for many hard…

## References

SHOWING 1-10 OF 121 REFERENCES

### Resummation of rapidity logarithms in B meson wave functions

- Physics
- 2013

A bstractWe construct an evolution equation for the B meson wave functions in the kT factorization theorem, whose solutions sum the double logarithms associated with the light-cone singularities,…

### Next-to-leading-order corrections to exclusive processes in k T factorization

- Physics
- 2007

We calculate next-to-leading-order corrections to exclusive processes in the kT factorization theorem, taking �� � ! � as an example. Partons off shell by k 2 are considered in both the quark…

### Next-to-leading-order correction to pion form factor in k(T) factorization

- Physics
- 2011

We calculate the next-to-leading-order (NLO) correction to the pion electromagnetic form factor at leading twist in the k{sub T} factorization theorem. Partons off-shell by k{sub T}{sup 2} are…

### Soft gluons in logarithmic summations

- Physics
- 1999

Abstract. We demonstrate that all the known single- and double-logarithm summations for a parton distribution function can be unified in the Collins–Soper resummation technique by applying soft…

### Threshold resummation for exclusive B meson decays

- Physics
- 2002

We argue that double logarithmic corrections $\alpha_s\ln^2 x$ need to be resumed in perturbative QCD factorization theorem for exclusive $B$ meson decays, when the end-point region with a momentum…

### Three-parton contribution to pion form factor in k(T) factorization

- Physics
- 2011

We set up a framework for the study of the power-suppressed three-parton contribution to the pion electromagnetic form factor in the $k_T$ factorization theorem. It is first shown that the gauge…

### Pion Distribution Amplitude from Lattice QCD

- Physics
- 2013

A method is explained through which a pointwise accurate approximation to the pion’s valencequark distribution amplitude (PDA) may be obtained from a limited number of moments. In connection with the…

### Meson Transition Form Factors in Light-Front Holographic QCD

- Physics
- 2011

We study the photon-to-meson transition form factors (TFFs) F{sub M{gamma}}(Q{sup 2}) for {gamma}{gamma}* {yields} M using light-front holographic methods. The Chern-Simons action, which is a natural…

### Determination of the pion distribution amplitude

- Physics
- 2013

Currently, not enough is known to determine the hadron distribution amplitudes (DAs)-which are universal physical quantities in the high-energy processes involving hadrons-in order to apply…