Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Towards a next-to-next-to-leading order analysis of matching in B0−B¯0 mixing. / Grozin, Andrey G.; Mannel, Thomas; Pivovarov, Alexei A.
в: Physical Review D, Том 96, № 7, 074032, 30.10.2017.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Towards a next-to-next-to-leading order analysis of matching in B0−B¯0 mixing
AU - Grozin, Andrey G.
AU - Mannel, Thomas
AU - Pivovarov, Alexei A.
N1 - Publisher Copyright: © 2017 American Physical Society.
PY - 2017/10/30
Y1 - 2017/10/30
N2 - We compute perturbative corrections to matching coefficients of QCD to heavy quark effective theory (HQET) for the matrix element of the ΔB=2 operator that determines the mass difference in B0-B0 system of states. This involves the technical point of choosing the operator basis in HQET, separating physical operators from evanescent ones. We obtain an analytical result for some of the two-loop corrections at order αs2.
AB - We compute perturbative corrections to matching coefficients of QCD to heavy quark effective theory (HQET) for the matrix element of the ΔB=2 operator that determines the mass difference in B0-B0 system of states. This involves the technical point of choosing the operator basis in HQET, separating physical operators from evanescent ones. We obtain an analytical result for some of the two-loop corrections at order αs2.
KW - EFFECTIVE FIELD-THEORY
KW - ANOMALOUS DIMENSIONS
KW - WEAK DECAYS
KW - 4-FERMION OPERATORS
KW - QCD CORRECTIONS
KW - RENORMALIZATION
KW - PARAMETER
KW - CURRENTS
KW - REGULARIZATION
KW - LIGHT
UR - http://www.scopus.com/inward/record.url?scp=85033211513&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.96.074032
DO - 10.1103/PhysRevD.96.074032
M3 - Article
AN - SCOPUS:85033211513
VL - 96
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 7
M1 - 074032
ER -
ID: 9720824