Heavy Ion Fusion makes use of the Relativistic Heavy Ion Collider at Brookhaven National Lab and the Large Hadron Collider in Geneva, Switzerland for Inertial Confinement Fusion. Two Storage Rings, which may or may no...Heavy Ion Fusion makes use of the Relativistic Heavy Ion Collider at Brookhaven National Lab and the Large Hadron Collider in Geneva, Switzerland for Inertial Confinement Fusion. Two Storage Rings, which may or may not initially be needed, added to each of the Colliders increases the intensity of the Heavy Ion Beams making it comparable to the Total Energy delivered to the DT target by the National Ignition Facility at the Lawrence Livermore Lab. The basic Physics involved gives Heavy Ion Fusion an advantage over Laser Fusion because heavy ions have greater penetration power than photons. The Relativistic Heavy Ion Collider can be used as a Prototype Heavy Ion Fusion Reactor for the Large Hadron Collider.展开更多
In this paper, we calculate the production of a charged top pion in association with a W boson via gg fusion at CERN＇s Large Hadron Collider in the context of the topcolor assisted technicolor model. We find that the...In this paper, we calculate the production of a charged top pion in association with a W boson via gg fusion at CERN＇s Large Hadron Collider in the context of the topcolor assisted technicolor model. We find that the total cross section of pp → gg → W±＋πtT is several dozen femtobarns with reasonable values of the parameters, and the total cross section of pp→ W±＋πtT can reach a few hundred femtobarns when we consider the sum of the contributions of these two parton subprocesses, gg→ W±＋πtT and bb→W±＋πtT.展开更多
At the CERN large hadron collider （LHC）, production of the Higgs boson in association with Z or W bosons provides a dramatic experimental signal for detecting the standard model （SM） Higgs boson. In this paper, we...At the CERN large hadron collider （LHC）, production of the Higgs boson in association with Z or W bosons provides a dramatic experimental signal for detecting the standard model （SM） Higgs boson. In this paper, we consider the contributions of the left-right twin Higgs （LRTH） model to the processes qq＇ --~ Z（W）H. Our numerical results show that, in the favorable parameter spaces, the cross sections deviate distinctly from the predictions of the SM. The possible signals of the LRTH model can be detected via these processes at the LHC experiments.展开更多
In this study,we conducted a search for dark matter using a part of the data recorded by the CMS experiment during run-I of the LHC in 2012 with a center of mass energy of 8 TeV and an integrated luminosity of 11.6 fb...In this study,we conducted a search for dark matter using a part of the data recorded by the CMS experiment during run-I of the LHC in 2012 with a center of mass energy of 8 TeV and an integrated luminosity of 11.6 fb−1.These data were gathered from the CMS open data.Dark matter,in the framework of the simplified model(mono-Z′),can be produced from proton-proton collisions in association with a new hypothetical gauge boson,Z′.Thus,the search was conducted in the dimuon plus large missing transverse momentum channel.One benchmark scenario of mono-Z′,which is known as light vector,was used for interpreting the CMS open data.No evidence of dark matter was observed,and exclusion limits were set on the masses of dark matter and Z′at 95%confidence level.展开更多
The Inert Doublet Model(IDM)is one of the simplest extensions beyond the Standard Model(SM)with an extended scalar sector,which provides a scalar dark matter particle candidate.In this study,we investigated the double...The Inert Doublet Model(IDM)is one of the simplest extensions beyond the Standard Model(SM)with an extended scalar sector,which provides a scalar dark matter particle candidate.In this study,we investigated the double charged Higgs production at aγγcollider.By scanning the whole parameter space,we obtained the parameter points corresponding to the correct relic abundance of dark matter.After applying all theoretical and experimental constraints,the parameter space for the existence of dark matter was extremely restricted.We performed an analysis of the signal of H+H-production in the IDM and the SM background,with the optimized selection conditions chosen for the kinematic variables to maximize the signal significance.Comparing the signal with the background,we obtained the parameter points that may be detected in futureγγcollider experiments.展开更多
This study investigates the prospect of discovering strongly interacting gluinos in different multi-lepton channels with lepton multiplicities greater than or equal to 2 at LHC RUN-Ⅲ,considering several pMSSM scenari...This study investigates the prospect of discovering strongly interacting gluinos in different multi-lepton channels with lepton multiplicities greater than or equal to 2 at LHC RUN-Ⅲ,considering several pMSSM scenarios.The effectiveness of the multivariate analysis(MVA) method with the boosted decision tree(BDT) algorithm is explored to obtain a better significance for different models.Promising results are obtained for the 3-lepton channels,indicating that the use of MVA methods can improve the sensitivity of the search for gluinos at LHC RUN-Ⅲ.The study probes the multi-lepton signatures arising from gluinos via intermediate eweakinos and sleptons at an early stage of the LHC RUN-Ⅲ.The heavier eweakinos can give rise to three or four lepton signals,in which the squark hierarchy between the L and R types plays a crucial role.The study considers two sets of benchmark points that satisfy all the collider constraints obtained from the LHC RUN-Ⅱ data.Moreover,these sets of benchmark points are mostly consistent with WMAP/PLANCK data and the muon(g-2) constraint.The corresponding results from the MVA technique demonstrate that,even for an integrated luminosity of 270 fb-1,the 5 σ discovery prospect of3l+jets+ETfor Mg=1.8 TeV in the wino type model is promising.The study also presents various other models that may emerge at the early stage of LHC RUN-Ⅲ.Wino type models in the scenario where left squarks are light and right squarks are heavy exhibit the best prospect of discovering gluinos in multi-lepton channels in the LHC RUN-Ⅲ experiment.The findings of this study provide crucial insights into the potential discovery of gluinos in multi-lepton channels.展开更多
文摘Heavy Ion Fusion makes use of the Relativistic Heavy Ion Collider at Brookhaven National Lab and the Large Hadron Collider in Geneva, Switzerland for Inertial Confinement Fusion. Two Storage Rings, which may or may not initially be needed, added to each of the Colliders increases the intensity of the Heavy Ion Beams making it comparable to the Total Energy delivered to the DT target by the National Ignition Facility at the Lawrence Livermore Lab. The basic Physics involved gives Heavy Ion Fusion an advantage over Laser Fusion because heavy ions have greater penetration power than photons. The Relativistic Heavy Ion Collider can be used as a Prototype Heavy Ion Fusion Reactor for the Large Hadron Collider.
基金Supported by National Natural Science Foundation of China (10975047,10979008)Natural Science Foundation of Henan Province (092300410205,102300410210)Scientific Research Foundation of Nanyang Normal University (ZX2011008)
文摘In this paper, we calculate the production of a charged top pion in association with a W boson via gg fusion at CERN＇s Large Hadron Collider in the context of the topcolor assisted technicolor model. We find that the total cross section of pp → gg → W±＋πtT is several dozen femtobarns with reasonable values of the parameters, and the total cross section of pp→ W±＋πtT can reach a few hundred femtobarns when we consider the sum of the contributions of these two parton subprocesses, gg→ W±＋πtT and bb→W±＋πtT.
基金Supported by the National Natural Science Foundation of China under Grant Nos. 10975047 and 10979008
文摘At the CERN large hadron collider （LHC）, production of the Higgs boson in association with Z or W bosons provides a dramatic experimental signal for detecting the standard model （SM） Higgs boson. In this paper, we consider the contributions of the left-right twin Higgs （LRTH） model to the processes qq＇ --~ Z（W）H. Our numerical results show that, in the favorable parameter spaces, the cross sections deviate distinctly from the predictions of the SM. The possible signals of the LRTH model can be detected via these processes at the LHC experiments.
基金the Center for Theoretical Physics (CTP) at the British University in Egypt (BUE) for its continuous support,both financially and scientifically,for this work。
文摘In this study,we conducted a search for dark matter using a part of the data recorded by the CMS experiment during run-I of the LHC in 2012 with a center of mass energy of 8 TeV and an integrated luminosity of 11.6 fb−1.These data were gathered from the CMS open data.Dark matter,in the framework of the simplified model(mono-Z′),can be produced from proton-proton collisions in association with a new hypothetical gauge boson,Z′.Thus,the search was conducted in the dimuon plus large missing transverse momentum channel.One benchmark scenario of mono-Z′,which is known as light vector,was used for interpreting the CMS open data.No evidence of dark matter was observed,and exclusion limits were set on the masses of dark matter and Z′at 95%confidence level.
基金Supported by the National Natural Science Foundation of China(11205003,11305001,11575002,11935001)。
文摘The Inert Doublet Model(IDM)is one of the simplest extensions beyond the Standard Model(SM)with an extended scalar sector,which provides a scalar dark matter particle candidate.In this study,we investigated the double charged Higgs production at aγγcollider.By scanning the whole parameter space,we obtained the parameter points corresponding to the correct relic abundance of dark matter.After applying all theoretical and experimental constraints,the parameter space for the existence of dark matter was extremely restricted.We performed an analysis of the signal of H+H-production in the IDM and the SM background,with the optimized selection conditions chosen for the kinematic variables to maximize the signal significance.Comparing the signal with the background,we obtained the parameter points that may be detected in futureγγcollider experiments.
文摘This study investigates the prospect of discovering strongly interacting gluinos in different multi-lepton channels with lepton multiplicities greater than or equal to 2 at LHC RUN-Ⅲ,considering several pMSSM scenarios.The effectiveness of the multivariate analysis(MVA) method with the boosted decision tree(BDT) algorithm is explored to obtain a better significance for different models.Promising results are obtained for the 3-lepton channels,indicating that the use of MVA methods can improve the sensitivity of the search for gluinos at LHC RUN-Ⅲ.The study probes the multi-lepton signatures arising from gluinos via intermediate eweakinos and sleptons at an early stage of the LHC RUN-Ⅲ.The heavier eweakinos can give rise to three or four lepton signals,in which the squark hierarchy between the L and R types plays a crucial role.The study considers two sets of benchmark points that satisfy all the collider constraints obtained from the LHC RUN-Ⅱ data.Moreover,these sets of benchmark points are mostly consistent with WMAP/PLANCK data and the muon(g-2) constraint.The corresponding results from the MVA technique demonstrate that,even for an integrated luminosity of 270 fb-1,the 5 σ discovery prospect of3l+jets+ETfor Mg=1.8 TeV in the wino type model is promising.The study also presents various other models that may emerge at the early stage of LHC RUN-Ⅲ.Wino type models in the scenario where left squarks are light and right squarks are heavy exhibit the best prospect of discovering gluinos in multi-lepton channels in the LHC RUN-Ⅲ experiment.The findings of this study provide crucial insights into the potential discovery of gluinos in multi-lepton channels.
