QCD anatomy of

Kagan, Alex; Neubert, Matthias

doi:10.1007/s100520050381

Cited by 229 publications

(382 citation statements)

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“…(11) in ref. [5], the two formulae are numerically very close, for realistic values of η. Thus, truncating the operator basis is a correct approximation in the present case.…”

mentioning

confidence: 67%

“…At the same time, we shall check the results of ref. [5] and verify whether truncating the operator basis was a good approximation there.…”

mentioning

confidence: 99%

“…As far as the remaining entries are concerned, our results agree with the old ones of refs. [8,6] and [5]. However, in order to perform a comparison, one needs to make a linear transformation of our matrices to the "old" basis of the four-quark operators used in those articles.…”

mentioning

confidence: 99%

“…[8] and [5]. 4 Note that the O( αem αs ) terms in the Wilson coefficients vanish at the initial scale µ = M W .…”

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confidence: 99%

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The correction to BR[B→Xsγ]

Baranowski

Misiak

2000

Physics Letters B

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We evaluate the O( αem αs ) correction to the rate of B → X s γ decay, i.e. we resum all the.. . Our calculation differs from the previously available one by that it takes into account the complete relevant set of operators. The correction is found to be negligible, i.e. it is below 1%, in accordance with the former results. ⋆ This paper is based on the M.Sc. thesis of the first author.At present, the next-to-leading logarithmic QCD analysis of B → X s γ decay allows predicting its branching ratio with around 10% accuracy [1]. The current accuracy on the experimental side is around 15% [2], which is expected to be improved soon. Therefore, it is important to examine the size of the dominant electroweak corrections to this decay mode.

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“…(11) in ref. [5], the two formulae are numerically very close, for realistic values of η. Thus, truncating the operator basis is a correct approximation in the present case.…”

mentioning

confidence: 67%

“…At the same time, we shall check the results of ref. [5] and verify whether truncating the operator basis was a good approximation there.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

“…[8] and [5]. 4 Note that the O( αem αs ) terms in the Wilson coefficients vanish at the initial scale µ = M W .…”

mentioning

confidence: 99%

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The correction to BR[B→Xsγ]

Baranowski

Misiak

2000

Physics Letters B

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“…For details of these calculations, see [91] and the papers on which they were based [93,94,95,96,97,98,99,100,101,102].…”

Section: Calculation and Constraintsmentioning

confidence: 99%

Effects of SO(10)-inspired scalar non-universality on the MSSM parameter space at largetanβ

Ramage

2005

Nuclear Physics B

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We analyze the parameter space of the (µ > 0, A 0 = 0) CMSSM at large tan β with a small degree of non-universality originating from D-terms and Higgs-sfermion splitting inspired by SO(10) GUT models. The effects of such non-universalities on the sparticle spectrum and observables such as (g − 2) µ , B(b → X s γ), the SUSY threshold corrections to the bottom mass and Ω CDM h 2 are examined in detail and the consequences for the allowed parameter space of the model are investigated. We find that even small deviations to universality can result in large qualitative differences compared to the universal case; for certain values of the parameters, we find, even at low m 1/2 and m 16 , that radiative electroweak symmetry breaking fails as a consequence of either |µ| 2 < 0 or m 2 A 0 < 0. We find particularly large departures from the mSugra case for the neutralino relic density, which is sensitive to significant changes in the position and shape of the A 0 resonance and a substantial increase in the Higgsino component of the LSP. However, we find that the corrections to the bottom mass are not sufficient to allow for Yukawa unification.

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Theory of Rare B Decays: b → s γ and b → s ℓ+ ℓ-#8211;

Mannel¹

2004

Heavy Quark Physics

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QCD anatomy of

Cited by 229 publications

References 0 publications

The correction to BR[B→Xsγ]

The correction to BR[B→Xsγ]

Effects of SO(10)-inspired scalar non-universality on the MSSM parameter space at largetanβ

Theory of Rare B Decays: b → s γ and b → s ℓ+ ℓ-#8211;

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