TY - JOUR
T1 - Renormalization group analysis of charged Higgs effects in ϵ′ ϵ for a heavy top quark
AU - Buchalla, Gerhard
AU - Buras, Andrzej J.
AU - Harlander, Michaela K.
AU - Lautenbacher, Markus E.
AU - Salazar, Claudia
N1 - Funding Information:
* Supported in part by the German Bundesministerium fiir Forschung und Technologie under contract 06TM 761. * This has also been noticed in ref. \[3\]i n a different context. ** We use the notation of ref. \[2\]t hroughout the present paper.
PY - 1991/5/20
Y1 - 1991/5/20
N2 - We perform the first renormalization group analysis of ε{lunate}′ ε{lunate}, ε{lunate} and B0-B0 mixing in a two-Higgs doublet model including the effects of electroweak penguins. The impact of charged Higgs effects on ε{lunate}′ ε{lunate} can be sizable. Due to additional positive contributions to ε{lunate} and additional negative contributions of Z0-penguin diagrams with charged Higgs exchanges to ε{lunate}′, the ratio ε{lunate}′ ε{lunate} is generally substantially smaller than in the standard model. It can become negative at smaller values of mt {all equal to} O(160 GeV) than found in the standard model.
AB - We perform the first renormalization group analysis of ε{lunate}′ ε{lunate}, ε{lunate} and B0-B0 mixing in a two-Higgs doublet model including the effects of electroweak penguins. The impact of charged Higgs effects on ε{lunate}′ ε{lunate} can be sizable. Due to additional positive contributions to ε{lunate} and additional negative contributions of Z0-penguin diagrams with charged Higgs exchanges to ε{lunate}′, the ratio ε{lunate}′ ε{lunate} is generally substantially smaller than in the standard model. It can become negative at smaller values of mt {all equal to} O(160 GeV) than found in the standard model.
UR - http://www.scopus.com/inward/record.url?scp=0001538418&partnerID=8YFLogxK
U2 - 10.1016/0550-3213(91)90116-F
DO - 10.1016/0550-3213(91)90116-F
M3 - Article
AN - SCOPUS:0001538418
SN - 0550-3213
VL - 355
SP - 305
EP - 329
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 2
ER -