<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>
-meson Ioffe-time distribution amplitude at short distances

Zhao, Shuai; Radyushkin, Anatoly

doi:10.1103/physrevd.103.054022

Cited by 12 publications

(6 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the box diagram can be ignored both in renormalization and perturbative matching. In fact, it has already been shown in [26,27] that the box diagram does not contribute, both in the quasi and pseudo distribution approaches. Thus, it will not contribute to the renormalization and matching of IM as well.…”

Section: One-loop Calculationmentioning

confidence: 92%

“…We follow the notations in [27]. To start with, let us consider a nonlocal heavy-light operator in heavy quark effective theory (HQET),…”

Section: Quasi Distribution Amplitude and Inverse Momentmentioning

confidence: 99%

“…[1,37] that one can study equal-time separations z = (0, 0, 0, z 3 ) on the lattice. The same idea has also been applied for the B-meson LCDA [25][26][27]. In this case, ν = −v 3 z 3 and z 2 = −z 2 3 .…”

Section: Quasi Distribution Amplitude and Inverse Momentmentioning

confidence: 99%

“…The matching relations linking the LCDA and quasi-DA or ITDA were derived in Refs. [26,27]; in the pseudo distribution-based approach, a matching relation that mapping light-cone ITDA to a UV finite reduced ITDA was also proposed [27].…”

Section: Quasi Distribution Amplitude and Inverse Momentmentioning

confidence: 99%

“…If such divergence was neglected, one cannot renormalize IM correctly. For this reason, we prefer a new calculation from the beginning, instead of using the matching coefficient reported in [26] or [27].…”

Section: Quasi Distribution Amplitude and Inverse Momentmentioning

confidence: 99%

See 4 more Smart Citations

Inverse moment of the $B$-meson quasi distribution amplitude

Xu,

Zhang,

Zhao

2022

Preprint

Self Cite

View full text Add to dashboard Cite

We perform a study on the structure of inverse moment (IM) of quasi distributions, by taking Bmeson quasi distribution amplitude (quasi-DA) as an example. Based on a one-loop calculation, we derive the renormalization group equation and velocity evolution equation for the first IM of quasi-DA. We find that, in the large velocity limit, the first IM of B-meson quasi-DA can be factorized into IM as well as logarithmic moments of light-cone distribution amplitude (LCDA), accompanied with short distance coefficients. Our results can be useful either in understanding the patterns of perturbative matching in Large Momentum Effective Theory or evaluating inverse moment of B-meson LCDA on the lattice.

show abstract

Section: One-loop Calculationmentioning

confidence: 92%

“…We follow the notations in [27]. To start with, let us consider a nonlocal heavy-light operator in heavy quark effective theory (HQET),…”

Section: Quasi Distribution Amplitude and Inverse Momentmentioning

confidence: 99%

Section: Quasi Distribution Amplitude and Inverse Momentmentioning

confidence: 99%

Section: Quasi Distribution Amplitude and Inverse Momentmentioning

confidence: 99%

Section: Quasi Distribution Amplitude and Inverse Momentmentioning

confidence: 99%

See 3 more Smart Citations

Inverse moment of the $B$-meson quasi distribution amplitude

Xu,

Zhang,

Zhao

2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Factorization and Sudakov resummation in leptonic radiative B decay — a reappraisal

Galda

Neubert

Wang

2022

J. High Energ. Phys.

View full text Add to dashboard Cite

The B-meson light-cone distribution amplitude is an important non- perturbative quantity arising in the factorization of the amplitudes for many exclusive decays of B mesons, such as B− → γℓ−$$ \overline{\nu} $$ ν ¯ . We reconsider the renormalization-group (RG) equation satisfied by this function and present its solution at next-to-leading order (NLO) in RG-improved perturbation theory in Laplace space and, for the first time, in momentum space and the so-called diagonal (or dual) space. Since the information needed to describe the B decay processes at leading order in ΛQCD/mb is most directly contained in the distribution amplitude in Laplace space evaluated near the origin, we propose a convenient parameterization of this object in terms of a small set of uncorrelated hadronic parameters. Using recent results on the three-loop anomalous dimension for heavy-light current operators, we derive an expression for the convolution integral appearing in the B− → γℓ−$$ \overline{\nu} $$ ν ¯ factorization formula that is explicitly scale independent, and we evaluate this formula at (approximate) NNLO.

show abstract

The distribution amplitude of the ηc-meson at leading twist from lattice QCD

Blossier,

Mangin-Brinet,

Morgado Chávez

et al. 2024

J. High Energ. Phys.

View full text Add to dashboard Cite

Distribution amplitudes are functions of non-perturbative matrix elements describing the hadronization of quarks and gluons. Thanks to factorization theorems, they can be used to compute the scattering amplitude of high-energy processes. Recently, new ideas have allowed their computation using lattice QCD, which should provide us with a general, fully relativistic determination. We present the first lattice calculation of the ηc-meson distribution amplitude at leading twist. Starting from the relevant matrix element in discrete Euclidean space on a set of Nf = 2 CLS ensembles, we explain the method to connect to continuum Minkowski spacetime. After addressing several sources of systematic uncertainty, we compare to Dyson-Schwinger and non-relativistic QCD determinations of this quantity. We find significant deviations between the latter and our result even at small Ioffe times.

show abstract

B -meson Ioffe-time distribution amplitude at short distances

Cited by 12 publications

References 46 publications

Inverse moment of the $B$-meson quasi distribution amplitude

Inverse moment of the $B$-meson quasi distribution amplitude

Factorization and Sudakov resummation in leptonic radiative B decay — a reappraisal

The distribution amplitude of the ηc-meson at leading twist from lattice QCD

Contact Info

Product

Resources

About