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The prospective Higgs factories, exemplified by ILC, FCC-ee and CEPC, plan to conduct the precision Higgs measurements at the $e^+e^-$ center-of-mass energy around 250 GeV. The cross sections for the dominant Higgs production channel, the…

High Energy Physics - Phenomenology · Physics 2017-09-13 Qing-Feng Sun , Feng Feng , Yu Jia , Wen-Long Sang

We calculate the full ${\cal O}(\alpha_{ew})$ electroweak corrections to the Higgs pair production process $e^+ e^- \to H H Z$ at an electron-positron linear collider in the standard model, and analyze the dependence of the Born cross…

High Energy Physics - Phenomenology · Physics 2015-06-25 Zhang Ren-You , Ma Wen-Gan , Chen Hui , Sun Yan-Bin , Hou Hong-Sheng

The first complete calculation of the next-to-leading-order electroweak corrections to four-lepton production at the LHC is presented, where all off-shell effects of intermediate Z bosons and photons are taken into account. Focusing on the…

High Energy Physics - Phenomenology · Physics 2016-04-27 B. Biedermann , A. Denner , S. Dittmaier , L. Hofer , B. Jäger

We study the complete ${\cal O}(\alpha_{ew})$ electroweak (EW) corrections to the production of three $Z^0$-bosons in the the framework of the standard model(SM) at the ILC. The leading order and the EW next-to-leading order corrected cross…

High Energy Physics - Phenomenology · Physics 2008-11-26 Su Ji-Juan , Ma Wen-Gan , Zhang Ren-You , Wang Shao-Ming , Guo Lei

We study the complete one-loop electroweak(EW) corrections to the processes of single charged Higgs boson production associated with a neutral Higgs boson$(h^0,H^0,A^0)$ and a gauge boson $W^\pm$ in the framework of the minimal…

High Energy Physics - Phenomenology · Physics 2008-11-26 Liu Jing-Jing , Ma Wen-Gan , Zhang Ren-You , Guo Lei , Jiang Yi , Han Liang

The complete electroweak O(alpha) radiative corrections to the Higgs-boson production processes e+ e- -> nu_l anti-nu_l H (l=e,mu,tau) are calculated in the electroweak Standard Model. For e+ e- -> nu_e anti-nu_e H, where ZH production and…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Denner , S. Dittmaier , M. Roth , M. M. Weber

Since the discovery of the Higgs boson at the Large Hadron Collider, a future electron-position collider has been proposed for precisely studying its properties. We investigate the production of the Higgs boson at such an $e^+e^-$ collider…

High Energy Physics - Phenomenology · Physics 2017-09-06 Yinqiang Gong , Zhao Li , Xiaofeng Xu , Li Lin Yang , Xiaoran Zhao

We present the full ${\cal O}(\alpha_{{ew}})$ electroweak radiative corrections to the Higgs-boson production in association with $Z^0$-boson pair at an electron-positron linear collider(LC) in the standard model. We analyze the dependence…

High Energy Physics - Phenomenology · Physics 2009-11-11 Zhou Ya-Jin , Ma Wen-Gan , Zhang Ren-You , Jiang Yi , Han Liang

The associate production of Higgs bosons with W or Z bosons, known as Higgs-strahlung, is an important search channel for Higgs bosons at the hadron colliders Tevatron and LHC for low Higgs-boson masses. We refine a previous calculation of…

High Energy Physics - Phenomenology · Physics 2015-06-03 A. Denner , S. Dittmaier , S. Kallweit , A. Mück

We present the full order alpha electroweak radiative corrections to e+e- -> e+e-H. The computation is performed with the help of GRACE-loop. The extraction of the full QED corrections is performed, these are quite large at threshold. The…

High Energy Physics - Phenomenology · Physics 2009-11-10 F. Boudjema , J. Fujimoto , T. Ishikawa , T. Kaneko , K. Kato , Y. Kurihara , Y. Shimizu , Y. Yasui

The associated production of Higgs boson with a hard photon at lepton collider, i.e., $e^+e^-\to H\gamma$, is known to bear a rather small cross section in Standard Model, and can serve as a sensitive probe for the potential new physics…

High Energy Physics - Phenomenology · Physics 2017-11-22 Wen-Long Sang , Wen Chen , Feng Feng , Yu Jia , Qing-Feng Sun

We study one loop electroweak corrections to the production of a pair of charged Higgs bosons through an intermediate $Z$-boson or photon. In particular, we consider the effects of graphs with top and bottom quarks and squarks in the loop…

High Energy Physics - Phenomenology · Physics 2016-09-01 Marco A. Diaz , Tonnis A. ter Veldhuis

We calculate the next-to-leading order electroweak corrections for Higgs-boson production in gluon fusion and the Higgs-boson decay into two photons or gluons in the real Higgs-singlet extension of the Standard model (HSESM). For the light…

High Energy Physics - Phenomenology · Physics 2023-12-15 Christian Sturm , Benjamin Summ , Sandro Uccirati

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…

High Energy Physics - Phenomenology · Physics 2007-05-23 Xiao-Hong Wu , Chong Sheng Li , Jian Jun Liu

Complete electroweak two-loop corrections to the process $gg \to H$ are presented and discussed in a Standard Model with a fourth generation of heavy fermions. The latter is studied at the LHC to put exclusion limits on a fourth generation…

High Energy Physics - Phenomenology · Physics 2015-05-30 Giampiero Passarino , Christian Sturm , Sandro Uccirati

The Higgs-boson production in association with a W-boson pair at $e^+e^-$ linear colliders is one of the important processes in probing the coupling between Higgs-boson and vector gauge bosons and discovering the signature of new physics.…

High Energy Physics - Phenomenology · Physics 2009-11-18 Song Mao , Ma Wen-Gan , Zhang Ren-You , Guo Lei , Wang Shao-Ming

We present the results for the complete next-to-leading order electroweak corrections to $pp \to HH$ at the Large Hadron Collider, focusing on the dominant gluon-gluon fusion process. While the corrections at the total cross-section level…

High Energy Physics - Phenomenology · Physics 2024-06-12 Huan-Yu Bi , Li-Hong Huang , Rui-Jun Huang , Yan-Qing Ma , Huai-Min Yu

Charged Higgs particles are a common feature of many extensions of the Standard Model. While its existence with masses up to the TeV scale can be probed at the Tevatron Run II and LHC hadron colliders, a precise determination of its…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jaume Guasch , Wolfgang Hollik , Arnd Kraft

In this paper we present the results from a calculation of the full electroweak one-loop corrections for $\gamma Z$ vector-boson pair production at hadron colliders. The cases of proton--antiproton as well as proton--proton collisions, at…

High Energy Physics - Phenomenology · Physics 2010-04-05 W. Hollik , C. Meier

We have calculated the complete electroweak O(alpha) radiative corrections to the Higgs-boson production process e+ e- -> t anti-t H in the electroweak Standard Model. Initial-state radiation beyond O(alpha) is included in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Denner , S. Dittmaier , M. Roth , M. M. Weber
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