2020
DOI: 10.1103/physrevd.102.033007
|View full text |Cite
|
Sign up to set email alerts
|

Penguin contribution to the width difference and CP asymmetry in BqB¯q mixing at order

Abstract: We present new contributions to the decay matrix element Γ q 12 of the B q −B q mixing complex, where q ¼ d or s. Our new results constitute the order α 2 s N f corrections to the penguin contributions to the Wilson coefficients entering Γ q 12 with full dependence on the charm quark mass. This is the first step toward the prediction of the CP asymmetry a q fs quantifying CP violation in mixing at next-to-next-to-leading logarithmic order (NNLO) in quantum chromodynamics (QCD) and further improves the predicti… Show more

Help me understand this report
View preprint versions

Search citation statements

Order By: Relevance

Paper Sections

Select...
5

Citation Types

4
24
1

Year Published

2021
2021
2023
2023

Publication Types

Select...
5

Relationship

2
3

Authors

Journals

citations
Cited by 20 publications
(29 citation statements)
references
References 45 publications
(48 reference statements)
4
24
1
Order By: Relevance
“…The [15] and we find complete agreement after expanding the exact expression up to linear order in z and transforming to the operator basis used in [15]. We note that the NLO coefficients with i = 1, 2 and j = 8 are only one-loop quantities and can be extracted from ref.…”
Section: Jhep07(2021)043supporting
confidence: 59%
See 4 more Smart Citations
“…The [15] and we find complete agreement after expanding the exact expression up to linear order in z and transforming to the operator basis used in [15]. We note that the NLO coefficients with i = 1, 2 and j = 8 are only one-loop quantities and can be extracted from ref.…”
Section: Jhep07(2021)043supporting
confidence: 59%
“…Correlator Perturbative order z-dependence O 1,2 × O 1,2 [9] 1 loop exact O 1,2 × O 1,2 [9] 2 loops exact O 1,2 × O 8 [9] 1 loop exact O 1,2 × O 3−6 [9] 1 loop exact [13] 1 loop exact We want to remark that in all cases the fermionic contributions to the penguin coefficients, which are known from ref. [15], are significantly smaller than the non-fermionic terms computed in this paper. Still, using N H = N V = 1 and N L = 3 we observe a screening of the non-fermionic coefficient of close to 50%.…”
Section: Jhep07(2021)043contrasting
confidence: 54%
See 3 more Smart Citations