We present theoretical predictions including the complete next-to-leading order(NLO)QCD corrections to the top quark pair production in association with a photon at the LHC with the center-of-mass system energy of 7Te...We present theoretical predictions including the complete next-to-leading order(NLO)QCD corrections to the top quark pair production in association with a photon at the LHC with the center-of-mass system energy of 7TeV.The uncertainties of the leading order(LO)and NLO QCD corrected cross sections due to the renormalization/factorization scale,and the distributions of the transverse momenta of the final top quark and the photon are studied.Moreover,we provide the numerical results of the LO,NLO QCD corrected cross sections and the corresponding𝐾-factors with different photon transverse momentum cuts.We also discuss the impact of QCD corrections to the𝑝pp→tt^(ˉ)γ𝛾+X𝑋in the case that there exists an exotic top quark with an electric charge of−4e/3 at the 7TeV LHC.展开更多
Background Interventional therapy is widely accepted as the first choice for the treatment of the Budd-Chiari syndrome but the use of radical correctional therapy should not be discarded. This study describes radical ...Background Interventional therapy is widely accepted as the first choice for the treatment of the Budd-Chiari syndrome but the use of radical correctional therapy should not be discarded. This study describes radical correction by controlling bleeding from distal end of pathological segment of the inferior vena cava （IVC） and discusses potential surgical errors and postoperative complications. Methods Of the 216 patients in the study, 78 were treated with simple membranectomy, 64 with dissection of the pathological segment of the IVC and vascular prosthesis or pericardial patch plasty, 60 with resection of the pathological segment of the IVC and orthotopic graft transplantation with vascular prosthesis, and 14 with resection of the occlusive main hepatic vein and its upper IVC, hepatic venous outflow plasty and vascular prosthesis orthotopic graft transplantation from the hepatic venous entrance to the IVC of right atrial ostium. Results Except 14 cases who were discharged after hepatic vein outflow plasty, four cases died postoperatively, and 198 patients were discharged without complications. The symptoms of 15 patients were relieved partially and 2 without any change. There were no deaths intraoperatively. Of the 112 cases who were followed up for 72 months, 13 suffered from a relapse. Conclusions Radical correction is a beneficial therapy in the treatment of Budd-Chiari svndrome.展开更多
基金by the National Natural Science Foundation of China under Grant Nos 10875112,11075150 and 11005101the Specialized Research Fund for the Doctoral Program of Higher Education of China(No 20093402110030).
文摘We present theoretical predictions including the complete next-to-leading order(NLO)QCD corrections to the top quark pair production in association with a photon at the LHC with the center-of-mass system energy of 7TeV.The uncertainties of the leading order(LO)and NLO QCD corrected cross sections due to the renormalization/factorization scale,and the distributions of the transverse momenta of the final top quark and the photon are studied.Moreover,we provide the numerical results of the LO,NLO QCD corrected cross sections and the corresponding𝐾-factors with different photon transverse momentum cuts.We also discuss the impact of QCD corrections to the𝑝pp→tt^(ˉ)γ𝛾+X𝑋in the case that there exists an exotic top quark with an electric charge of−4e/3 at the 7TeV LHC.
文摘Background Interventional therapy is widely accepted as the first choice for the treatment of the Budd-Chiari syndrome but the use of radical correctional therapy should not be discarded. This study describes radical correction by controlling bleeding from distal end of pathological segment of the inferior vena cava （IVC） and discusses potential surgical errors and postoperative complications. Methods Of the 216 patients in the study, 78 were treated with simple membranectomy, 64 with dissection of the pathological segment of the IVC and vascular prosthesis or pericardial patch plasty, 60 with resection of the pathological segment of the IVC and orthotopic graft transplantation with vascular prosthesis, and 14 with resection of the occlusive main hepatic vein and its upper IVC, hepatic venous outflow plasty and vascular prosthesis orthotopic graft transplantation from the hepatic venous entrance to the IVC of right atrial ostium. Results Except 14 cases who were discharged after hepatic vein outflow plasty, four cases died postoperatively, and 198 patients were discharged without complications. The symptoms of 15 patients were relieved partially and 2 without any change. There were no deaths intraoperatively. Of the 112 cases who were followed up for 72 months, 13 suffered from a relapse. Conclusions Radical correction is a beneficial therapy in the treatment of Budd-Chiari svndrome.
