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Physics and experiments with future linear e+ e- colliders最新文献

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Strong Symmetry Breaking Signals in e+e−→W+W− at s=800 GeV s=800 GeV时，e+e−→W+W−的强对称性破缺信号
Physics and experiments with future linear e+ e- colliders Pub Date : 2004-10-11 DOI: 10.1063/1.1394383
T. Barklow
{"title":"Strong Symmetry Breaking Signals in e+e−→W+W− at s=800 GeV","authors":"T. Barklow","doi":"10.1063/1.1394383","DOIUrl":"https://doi.org/10.1063/1.1394383","url":null,"abstract":"The sensitivity of e+e− linear colliders to strong W+W− scattering effects in e+e−→W+W− is examined. Past studies have concentrated on e+e− linear colliders with center-of-mass energies of more than 1 TeV and integrated luminosities of less than 200 fb−1. Here we review the strong symmetry breaking signals that can be observed with center-of-mass energies of 0.5–0.8 TeV and luminosities of 300–500 fb−1.","PeriodicalId":325505,"journal":{"name":"Physics and experiments with future linear e+ e- colliders","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130702975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New NLC final focus 新的NLC最终焦点
Physics and experiments with future linear e+ e- colliders Pub Date : 2004-10-11 DOI: 10.1063/1.1394420
P. Raimondi, A. Seryi
{"title":"New NLC final focus","authors":"P. Raimondi, A. Seryi","doi":"10.1063/1.1394420","DOIUrl":"https://doi.org/10.1063/1.1394420","url":null,"abstract":"A novel design of the Final Focus has recently been proposed [1] and has been adopted now for the Next Linear Collider [2]. This new design has fewer optical elements and is much shorter, nonetheless achieving better chromatic properties. In this paper, the new final focus system is briefly discussed stressing one particular characteristic of the new design—its multi TeV energy reach.","PeriodicalId":325505,"journal":{"name":"Physics and experiments with future linear e+ e- colliders","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116452373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The naturalness principle and expectations for a linear collider 线性对撞机的自然性原则和期望
Physics and experiments with future linear e+ e- colliders Pub Date : 2001-09-12 DOI: 10.1063/1.1394360
G. Anderson
{"title":"The naturalness principle and expectations for a linear collider","authors":"G. Anderson","doi":"10.1063/1.1394360","DOIUrl":"https://doi.org/10.1063/1.1394360","url":null,"abstract":"Naturalness considerations are frequently used to place theoretical upper limits on the masses of new particles in supersymmetric extensions of the standard model. These theoretical limits, in turn, shape our expectations of how likely it is that new physics will be discovered at any particular collider. A significant portion of the literature devoted to naturalness studies apply criteria which do not have a reliable correspondence to fine-tuning. This report discusses the principled method for quantifying naturalness, and presents theoretical bounds on sparticle masses in two scenarios.","PeriodicalId":325505,"journal":{"name":"Physics and experiments with future linear e+ e- colliders","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2001-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129766814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Study of Higgs boson production through WW-fusion at a linear collider 线性对撞机w -聚变产生希格斯玻色子的研究
Physics and experiments with future linear e+ e- colliders Pub Date : 2001-09-12 DOI: 10.1063/1.1394317
K. Desch, N. Meyer
{"title":"Study of Higgs boson production through WW-fusion at a linear collider","authors":"K. Desch, N. Meyer","doi":"10.1063/1.1394317","DOIUrl":"https://doi.org/10.1063/1.1394317","url":null,"abstract":"We study the feasibility of measuring the cross section of Higgs boson production in the WW-fusion process, e+e−→νeνeH0, at a future linear collider at center-of-mass energies between 350 and 500 GeV. Realistic assumptions for detector resolution effects, b-quark tagging efficiency and background processes are made. Using the decay mode H0→bb the cross section can be measured to an accuracy of 3% for a Higgs boson mass of 120 GeV, assuming 500fb−1 of data. This measurement can be used to extract the coupling gHWW between Higgs and W bosons and indirectly determine the total decay width of the Higgs boson.","PeriodicalId":325505,"journal":{"name":"Physics and experiments with future linear e+ e- colliders","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2001-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125601561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Measuring the spin of the Higgs boson from Higgs-strahlung 通过希格斯辐射测量希格斯玻色子的自旋
Physics and experiments with future linear e+ e- colliders Pub Date : 2001-09-12 DOI: 10.1063/1.1394312
D. Miller
{"title":"Measuring the spin of the Higgs boson from Higgs-strahlung","authors":"D. Miller","doi":"10.1063/1.1394312","DOIUrl":"https://doi.org/10.1063/1.1394312","url":null,"abstract":"The unambiguous verification of the spinless nature of the Higgs boson in the Standard Model and related extensions is demonstrated in a model-independent way, by studying the threshold dependence of the excitation curve and the angular distribution in Higgs-strahlung at e+e− colliders, e+e−→ZH.","PeriodicalId":325505,"journal":{"name":"Physics and experiments with future linear e+ e- colliders","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2001-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131602214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Machine implications for detectors and physics 机器对探测器和物理学的影响
Physics and experiments with future linear e+ e- colliders Pub Date : 2001-09-12 DOI: 10.1063/1.1394302
T. Tauchi
{"title":"Machine implications for detectors and physics","authors":"T. Tauchi","doi":"10.1063/1.1394302","DOIUrl":"https://doi.org/10.1063/1.1394302","url":null,"abstract":"Future linear colliders are very different at many aspects because of low repetition rate (5∼200 Hz) and high accelerating gradient (22∼150 MeV/m). For high luminosity, the beam sizes must be squeezed in extremely small region at interaction point (IP). We briefly describe new phenomena at the IP, i.e. beamstrahlung process, creations of e+e− pairs and minijets. We also report machine implications related to the energy spread, beamstrahlung, bunch-train structure, beam polarizations and backgrounds for detectors and physics.","PeriodicalId":325505,"journal":{"name":"Physics and experiments with future linear e+ e- colliders","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2001-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133029043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pattern Recognition and Track Fitting in Central Trackers 中央跟踪器的模式识别与跟踪拟合
Physics and experiments with future linear e+ e- colliders Pub Date : 2001-09-12 DOI: 10.1063/1.1394438
N. Graf
{"title":"Pattern Recognition and Track Fitting in Central Trackers","authors":"N. Graf","doi":"10.1063/1.1394438","DOIUrl":"https://doi.org/10.1063/1.1394438","url":null,"abstract":"We present a fully object-oriented framework which provides the tools for track finding and fitting in a particle physics detector. The software is modular and extensible so that it can be applied to a wide range of detectors and can be finely tuned to optimize performance. We believe that this package can provide a common solution to the requirements of the Linear Collider simulation community.","PeriodicalId":325505,"journal":{"name":"Physics and experiments with future linear e+ e- colliders","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2001-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133523870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gamma-gamma interaction region design issues γ - γ交互区域设计问题
Physics and experiments with future linear e+ e- colliders Pub Date : 2001-09-12 DOI: 10.1063/1.1394412
J. Gronberg
{"title":"Gamma-gamma interaction region design issues","authors":"J. Gronberg","doi":"10.1063/1.1394412","DOIUrl":"https://doi.org/10.1063/1.1394412","url":null,"abstract":"An initial design of the optics required for producing gamma-gamma collisions was produced for the NLC Zeroth Order Design Report (ZDR) submitted to the 1996 Snowmass workshop. The design incorporated only loose constraints from the interaction region requirements. In this paper we report progress on a design of a gamma-gamma interaction region which incorporates all constraints.","PeriodicalId":325505,"journal":{"name":"Physics and experiments with future linear e+ e- colliders","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2001-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114797178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of GEM space point resolution for a TPC tracker TPC跟踪器GEM空间点分辨率研究
Physics and experiments with future linear e+ e- colliders Pub Date : 2001-09-12 DOI: 10.1063/1.1394433
D. Karlen, Bob Carnegie, M. Dixit, J. Dubeau, H. Mes, M. O’Neill, E. Neuheimer, Anna K. Kristofferson, Jeff Mottershead
{"title":"Investigation of GEM space point resolution for a TPC tracker","authors":"D. Karlen, Bob Carnegie, M. Dixit, J. Dubeau, H. Mes, M. O’Neill, E. Neuheimer, Anna K. Kristofferson, Jeff Mottershead","doi":"10.1063/1.1394433","DOIUrl":"https://doi.org/10.1063/1.1394433","url":null,"abstract":"The Gas Electron Multiplier (GEM) is a leading candidate for the readout of the Time Projection Chamber (TPC) at a future linear collider detector. This presentation describes measurements of the space point resolution of a GEM with relatively large hexagonal pads. Resolution of approximately 50 μm is achieved for 4.5 keV x-rays with two independent methods, using charge sharing and using induction signals.","PeriodicalId":325505,"journal":{"name":"Physics and experiments with future linear e+ e- colliders","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2001-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116994592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Calorimeter optimization for jet identification 射流识别的量热计优化
Physics and experiments with future linear e+ e- colliders Pub Date : 2001-09-12 DOI: 10.1063/1.1394454
G. Bower
{"title":"Calorimeter optimization for jet identification","authors":"G. Bower","doi":"10.1063/1.1394454","DOIUrl":"https://doi.org/10.1063/1.1394454","url":null,"abstract":"During LCWS 1999 at Sitges, Spain, we presented a set of discriminators for reconstructing jets in high energy lepton colliders. We have extended that study by adding new event types, by adding new discriminators, and by using a neural net rather than cuts to identify jets. We apply these techniques to detector simulations to begin a study of calorimeter optimization.","PeriodicalId":325505,"journal":{"name":"Physics and experiments with future linear e+ e- colliders","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2001-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129630892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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