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相关论文: Electroweak contributions to squark--gluino produc…

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We present the tree-level and next-to-leading order (NLO) electroweak (EW) contributions to squark-squark production at the Large Hadron Collider (LHC) within the framework of the Minimal Supersymmetric Standard Model (MSSM).

高能物理 - 唯象学 · 物理学 2015-05-14 Jan Germer , Wolfgang Hollik , Edoardo Mirabella , Maike K. Trenkel

We compute the electroweak (EW) contributions to squark--squark pair production processes at the LHC within the framework of the Minimal Supersymmetric Standard Model (MSSM). Both tree-level EW contributions, of O(alpha_s alpha + alpha^2),…

高能物理 - 唯象学 · 物理学 2014-11-20 Jan Germer , Wolfgang Hollik , Edoardo Mirabella , Maike K. Trenkel

We present the calculation of the electroweak corrections for squark-antisquark pair production at the LHC within the Minimal Supersymmetric Standard Model. Taking into account all possible chirality and light-flavor configurations, we…

高能物理 - 唯象学 · 物理学 2015-10-15 Wolfgang Hollik , Jonas M. Lindert , Edoardo Mirabella , Davide Pagani

Presented are complete next-to-leading order electroweak (NLO EW) corrections to top-squark pair production at the Large Hadron Collider (LHC) within the Minimal Supersymmetric Standard Model (MSSM). At this order, also effects from the…

高能物理 - 唯象学 · 物理学 2009-02-18 Wolfgang Hollik , Monika Kollar , Maike K. Trenkel

Presented are complete electroweak (EW) corrections at ${\cal O}(\alpha\alpha_{\mathrm s}^{\mathrm 2})$ to top-squark pair production at the Large Hadron Collider (LHC) within the framework of the Minimal Supersymmetric Standard Model…

高能物理 - 唯象学 · 物理学 2007-10-15 Wolfgang Hollik , Monika Kollar , Maike K. Trenkel

The dominant contribution to $H^- t\bar{b}$ production at the LHC is the gluon-gluon fusion parton subprocess. We perform for the case of the complex MSSM a complete calculation of the NLO electroweak contributions to this channel. The…

高能物理 - 唯象学 · 物理学 2013-06-25 Dao Thi Nhung , Wolfgang Hollik , Le Duc Ninh

The $\alpha m_t^2/m_W^2$ order supersymmetric electroweak corrections arising from loops of chargino, neutralino, and squark to top quark pair production by $gg$ fusion at LHC are calculated in the minimal supersymmetric model. We found…

高能物理 - 唯象学 · 物理学 2018-01-17 Hong-Yi Zhou , Chong-Sheng Li

We present the complete computation of the tree-level and the next-to-leading order electroweak contributions to bottom-squark pair production at the LHC. The computation is performed within the minimal supersymmetric extension of the…

高能物理 - 唯象学 · 物理学 2015-05-27 Jan Germer , Wolfgang Hollik , Edoardo Mirabella

We calculate the full $\mathcal{O}(\alpha_s^2\alpha)$ corrections to the process of gluino pair production at hadron colliders in the framework of the real MSSM. We show that these contributions can be neglected at the LHC performing a scan…

高能物理 - 唯象学 · 物理学 2009-12-08 Edoardo Mirabella

We present the complete NLO electroweak contribution of $\mathcal{O}(\alpha^2_s \alpha)$ to the production of diagonal squark--anti-squark pairs in proton--proton collisions. Compared to the lowest-order $\mathcal{O}(\alpha_s\alpha +…

高能物理 - 唯象学 · 物理学 2009-03-24 Wolfgang Hollik , Edoardo Mirabella

In this paper we compute electroweak contributions to the production of squark pairs at hadron colliders. These include the exchange of electroweak gauge bosons in the s-channel as well as electroweak gaugino exchange in the t- and/or…

高能物理 - 唯象学 · 物理学 2008-11-26 Sascha Bornhauser , Manuel Drees , Herbi K. Dreiner , Jong Soo Kim

We compute electroweak contributions to the production of squark pairs at hadron colliders. These include the exchange of electroweak gauge bosons in the $s-$channel as well as electroweak gaugino exchange in the $t-$ and/or $u-$channel. In…

高能物理 - 唯象学 · 物理学 2007-10-11 Sascha Bornhauser , Manuel Drees , Herbi K. Dreiner , Jong Soo Kim

Presented are the complete NLO electroweak contributions to the production of diagonal squark--anti-squark pairs at the LHC. We discuss their effects for the production of squarks of the first two generations, in different SUSY scenarios.

高能物理 - 唯象学 · 物理学 2009-02-02 Wolfgang Hollik , Edoardo Mirabella

The dominant contribution to the Higgs production in association with bottom quark pair at the LHC is gluon-gluon fusion parton subprocess. We present a complete calculation of the next-to-leading order (NLO) electroweak (EW) corrections to…

高能物理 - 唯象学 · 物理学 2018-01-03 Yu Zhang

We consider the production of squarks and gluinos at hadronic colliders. An overview over the class of processes is given. We investigate in detail the tree-level and higher order EW contributions to the cross sections. Special care has to…

高能物理 - 唯象学 · 物理学 2009-02-02 W. Hollik , M. Kollar , E. Mirabella , M. K. Trenkel

We present the complete NLO electroweak contribution to the production of diagonal squark--anti-squark pairs in proton--proton collisions. We discuss their effects for the production of squarks different from top squarks, in the SPS1a'…

高能物理 - 唯象学 · 物理学 2010-11-11 Wolfgang Hollik , Edoardo Mirabella

Motivated by the increased precision expected from LHC Run 3, equally accurate theory predictions are mandatory. As supersymmetry mass limits increase, predictions can be improved by threshold resummation. We examine the effects of…

高能物理 - 唯象学 · 物理学 2022-05-17 Juri Fiaschi , Benjamin Fuks , Michael Klasen , Alexander Neuwirth

The electroweak corrections of order ${\cal O}(\alpha_{\rm em} m^2_{t,b}/m^2_w)$ and ${\cal O}(\alpha_{\rm em} m^3_{t,b}/m^3_w)$ to Higgs boson associated production with top quark pair are calculated at $e^+e^-$ colliders in the standard…

高能物理 - 唯象学 · 物理学 2007-05-23 Xiao-Hong Wu , Chong Sheng Li , Jian Jun Liu

We perform a threshold resummation calculation for the associated production of squarks and electroweakinos at the LHC to the next-to-leading logarithmic (NLL) accuracy. Analytical results for the process-dependent soft anomalous dimension…

高能物理 - 唯象学 · 物理学 2022-06-24 J. Fiaschi , B. Fuks , M. Klasen , A. Neuwirth

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…

高能物理 - 唯象学 · 物理学 2009-07-09 A. Djouadi , P. Gambino , S. Heinemeyer , W. Hollik , C. Jünger , G. Weiglein
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