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Related papers: QCD Corrections to K-Kbar Mixing in R-symmetric Su…

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We compute the leading QCD corrections to K-Kbar mixing in the supersymmetric standard model with general soft supersymmetry-breaking parameters. We construct the \Delta S=2 effective Lagrangian for three hierarchies of supersymmetric…

High Energy Physics - Phenomenology · Physics 2009-10-09 Jonathan A. Bagger , Konstantin T. Matchev , Ren-Jie Zhang

In supersymmetric theories, the main decay modes of scalar quarks are decays into quarks plus charginos or neutralinos, if the gluinos are heavy enough. We calculate the O($\alpha_s$) QCD corrections to these decay modes in the minimal…

High Energy Physics - Phenomenology · Physics 2011-01-27 A. Djouadi , W. Hollik , C. Junger

We present a complete calculation of the QCD corrections (of the order $\alpha_s$) to the width of the decay $H^+ \to t \bar{b}$ within the Minimal Supersymmetric Standard Model. We find that the QCD corrections are quite important, and…

High Energy Physics - Phenomenology · Physics 2011-01-13 A. Bartl , H. Eberl , K. Hidaka , T. Kon , W. Majerotto , Y. Yamada

The complete QCD corrections to the scalar top quark pair production via $\gamma \gamma$ fusion in parent $e^{+}e^{-}$ collider are calculated in the Supersymmetric Model. The various origins of corrections are discussed. We find that the…

High Energy Physics - Phenomenology · Physics 2009-10-30 Chao-Hsi Chang , Liang Han , Wen-Gan Ma , Zeng-Hui Yu

In supersymmetric theories, the top quark can decay into its scalar partner plus a neutralino, with an appreciable rate. We calculate the $O(\alpha_s)$ QCD corrections to this decay mode in the minimal supersymmetric extension of the…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Djouadi , W. Hollik , C. Junger

We calculate the supersymmetric QCD corrections in order $\alpha_s$ to the cross section $e^+ e^- \to \sq_i \bar\sq_j$ $(i,j = 1, 2)$ within the Minimal Supersymmetric Standard Model. We pay particular attention to the case of the…

High Energy Physics - Phenomenology · Physics 2009-10-28 H. Eberl , A. Bartl , W. Majerotto

We calculate supersymmetric QCD corrections (squark/gluino loops) to quark pair production in e+ e- annihilation, allowing for mixing between left- and right-handed squarks and taking into account the effects of nonzero quark masses.…

High Energy Physics - Phenomenology · Physics 2009-10-22 A. Djouadi , M. Drees , H. König

A status report is given of the calculations of next-to-leading-order ($N=1$) supersymmetric QCD corrections to the production of squarks and gluinos in $p\bar{p}/pp$ collisions. The implementation of these SUSY-QCD corrections leads to…

High Energy Physics - Phenomenology · Physics 2015-06-25 W. Beenakker , R. Höpker

I present the results of the QCD corrections to the H+ --> t anti-b decay within the minimal supersymmetric standard model, if gluinos and scalar quarks are taken within the relevant loop diagram. I include the mixing of the scalar partners…

High Energy Physics - Phenomenology · Physics 2009-10-28 Heinz Konig

In the supersymmetric extension of the Standard Model we derive the two-loop QCD corrections to the scalar quark contributions to the electroweak precision observables entering via the rho parameter. A very compact expression is derived for…

High Energy Physics - Phenomenology · Physics 2009-07-09 A. Djouadi , P. Gambino , S. Heinemeyer , W. Hollik , C. Jünger , G. Weiglein

We calculate the dominant loop corrections from both standard and supersymmetric QCD to the effective coupling of neutralinos to nucleons. The potentially largest corrections come from gluino-squark loop contributions to the Higgs boson…

High Energy Physics - Phenomenology · Physics 2009-10-31 Abdelhak Djouadi , Manuel Drees

We calculate the two-loop QCD correction to the scalar quark contributions to the electroweak gauge-boson self-energies at zero momentum-transfer in the supersymmetric extension of the Standard Model. We then derive the $O(\alpha_s)$…

High Energy Physics - Phenomenology · Physics 2009-07-09 A. Djouadi , P. Gambino , S. Heinemeyer , W. Hollik , C. Jünger , G. Weiglein

We calculate the supersymmetric QCD correction to top-quark production at the Fermilab Tevatron, allowing for arbitrary left-right mixing of the squarks. We find that the correction is significant for several combinations of gluino and…

High Energy Physics - Phenomenology · Physics 2009-10-30 Zack Sullivan

We calculate the supersymmetric QCD corrections in order $\alpha_s$ to the the widths of the Higgs boson decays $H^+ \to \st \bar\sb$ and $H^0, A^0 \to \st \bar\st, \sb \bar\sb$ in the on--shell scheme within the Minimal Supersymmetric…

High Energy Physics - Phenomenology · Physics 2011-01-27 A. Bartl , H. Eberl , K. Hidaka , T. Kon , W. Majerotto , Y. Yamada

The supersymmetric QCD corrections to top quark pair production by $q\bar q$ annihilation in $p\bar p$ collisions are calculated in the minimal supersymmetric model. We consider effects of the mixing of the scalar top quarks on the…

High Energy Physics - Phenomenology · Physics 2015-06-25 Chong Sheng Li , Hong Yi Zhou , Yun Lun ZhU , Jin Min Yang

We compute supersymmetric QCD and supersymmetric electroweak corrections to the b and t quark masses and to the $\tau$ lepton mass in the presence of CP phases valid for all $\tan\beta$. The analysis includes one loop diagrams arising from…

High Energy Physics - Phenomenology · Physics 2014-11-17 Tarek Ibrahim , Pran Nath

In supersymmetric theories, the decays of the neutral CP-even and CP-odd as well as the charged Higgs bosons into scalar quarks, in particular into top and bottom squarks, can be dominant if they are kinematically allowed. We calculate the…

High Energy Physics - Phenomenology · Physics 2011-01-27 A. Arhrib , A. Djouadi , W. Hollik , C. Junger

The QCD corrections for the box diagrams are revisited for the case of a heavy top quark with $\mt = 174 \GeV$. We resolve first a longstanding discrepancy between two methods of calculation by showing that they give the same results when…

High Energy Physics - Phenomenology · Physics 2019-08-17 Amitava Datta , E. A. Paschos , J. -M. Schwarz , M. N. Sinha Roy

We present a complete next-to-leading-order calculation of the QCD corrections to $B^0-\bar{B}^0$ ($K^0-\bar{K}^0$) mixing in the framework of the minimal flavor violating (MFV) supersymmetry. We take into account the contributions from the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Tai-Fu Feng , Xue-Qian Li , Wen-Gan Ma , Feng Zhang

We calculate the complete next-to-leading order QCD corrections to the three-body decay of gluino into top-pair associated with a lightest neutralino in the minimal supersymmetric standard model. We obtain that the LO and NLO QCD corrected…

High Energy Physics - Phenomenology · Physics 2012-08-28 Duan Peng-Fei , Zhang Ren-You , Ma Wen-Gan , Guo Lei , Zhang Yu
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