Matching of heavy-light flavour currents between HQET at order 1/m and QCD: I. Strategy and tree-level study

Michele Della Morte, Samantha Dooling, Jochen Heitger, Dirk Hesse, Hubert Simma

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

We present a strategy how to match the full set of components of the heavy-light axial and vector currents in Heavy Quark Effective Theory (HQET), up to and including 1/m-corrections, to QCD. While the ultimate goal is to apply these matching conditions non-perturbatively, in this study we first have implemented them at tree-level, in order to find good choices of the matching observables with small O(1/m^2) contributions. They can later be employed in the non-perturbative matching procedure which is a crucial part of precision HQET computations of semileptonic decay form factors in lattice QCD.
OriginalsprogUdefineret/Ukendt
Artikelnummer1312-1566v2
TidsskriftJournal of High Energy Physics (JHEP)
ISSN1126-6708
StatusUdgivet - 2014

Citer dette

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Matching of heavy-light flavour currents between HQET at order 1/m and QCD : I. Strategy and tree-level study. / Della Morte, Michele ; Dooling, Samantha; Heitger, Jochen; Hesse, Dirk; Simma, Hubert.

I: Journal of High Energy Physics (JHEP), 2014.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Matching of heavy-light flavour currents between HQET at order 1/m and QCD

T2 - I. Strategy and tree-level study

AU - Della Morte, Michele

AU - Dooling, Samantha

AU - Heitger, Jochen

AU - Hesse, Dirk

AU - Simma, Hubert

PY - 2014

Y1 - 2014

N2 - We present a strategy how to match the full set of components of the heavy-light axial and vector currents in Heavy Quark Effective Theory (HQET), up to and including 1/m-corrections, to QCD. While the ultimate goal is to apply these matching conditions non-perturbatively, in this study we first have implemented them at tree-level, in order to find good choices of the matching observables with small O(1/m^2) contributions. They can later be employed in the non-perturbative matching procedure which is a crucial part of precision HQET computations of semileptonic decay form factors in lattice QCD.

AB - We present a strategy how to match the full set of components of the heavy-light axial and vector currents in Heavy Quark Effective Theory (HQET), up to and including 1/m-corrections, to QCD. While the ultimate goal is to apply these matching conditions non-perturbatively, in this study we first have implemented them at tree-level, in order to find good choices of the matching observables with small O(1/m^2) contributions. They can later be employed in the non-perturbative matching procedure which is a crucial part of precision HQET computations of semileptonic decay form factors in lattice QCD.

KW - hep-lat

M3 - Tidsskriftartikel

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

SN - 1126-6708

M1 - 1312-1566v2

ER -