Next-to-Leading Order QCD Corrections for the B⁰B⁰ Mixing with an Extended Higgs Sector

Author

Jorg Org Urban
Frank Krauss
Ulrich D. Jentschura, Missouri University of Science and TechnologyFollow
Gerhard Soff

Abstract

We present a calculation of the B⁰B⁰ mixing including next-to-leading order (NLO) QCD corrections within the Two-Higgs Doublet Model (2HDM). The QCD corrections at NLO are contained in the factor denoted by η₂ which modifies the result obtained at the lowest order of perturbation theory. In the Standard Model case, we confirm the results for η₂ obtained by Buras, Jamin and Weisz [Nucl. Phys, B 347 (1990) 491]. The factor η₂ is gauge and renormalization prescription invariant and it does not depend on the infrared behaviour of the theory, which constitutes an important test of the calculations. The NLO calculations within the 2HDM enhance the LO result up to 18%, which affects the correlation between M_H and V_td.

Recommended Citation

J. O. Urban et al., "Next-to-Leading Order QCD Corrections for the B⁰B⁰ Mixing with an Extended Higgs Sector," Nuclear Physics B, vol. 523, no. 1-2, pp. 40 - 58, Elsevier, Jul 1998.

The definitive version is available at https://doi.org/10.1016/S0550-3213(98)00043-1

Department(s)

Physics

Keywords and Phrases

2HDM; CKM Matrix; CP Violation; Mixing; Oscillations

International Standard Serial Number (ISSN)

0550-3213

Document Type

Article - Journal

Document Version

Accepted Manuscript

File Type

text

Language(s)

English

Rights

© 1998 Elsevier, All rights reserved.

Publication Date

01 Jul 1998