The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics community.It is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of...The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics community.It is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or higher.The STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEPCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the Standard Model.The STCF project in China is under development with an extensive R&D program.This document presents the physics opportunities at the STCF,describes conceptual designs of the STCF detector system,and discusses future plans for detector R&D and physics case studies.展开更多
报道了用CMD-3在2011-2012年收集的积分亮度为22 pb-1的研究结果.在CMD-3当前的统计量下,只能被确定Ф(1020)η中间共振态.在1.59-2.0 Ge V能区的30个能量点测量了e^+e^-→Ф(1020)η.分析中,将η介子当做反冲粒子,穷尽了η衰变的所有模...报道了用CMD-3在2011-2012年收集的积分亮度为22 pb-1的研究结果.在CMD-3当前的统计量下,只能被确定Ф(1020)η中间共振态.在1.59-2.0 Ge V能区的30个能量点测量了e^+e^-→Ф(1020)η.分析中,将η介子当做反冲粒子,穷尽了η衰变的所有模式,选出的事例总数为1454±48.测量的截面近似为Ф(1680)和非共振振幅按照矢量介子主导模型的叠加,并得到了Ф(1680)介子共振参数的初步结果.展开更多
The laws of functioning of discrete deterministic dynamical systems are investigated,presented in the form of automata models defined by geometric images.Due to the use of the apparatus of geometric images of automata...The laws of functioning of discrete deterministic dynamical systems are investigated,presented in the form of automata models defined by geometric images.Due to the use of the apparatus of geometric images of automata,developed by V.A.Tverdokhlebov,the analysis of automata models is carried out on the basis of the analysis of mathematical structures represented by geometric curves and numerical sequences.The purpose of present research is to further develop the mathematical apparatus of geometric images of automaton models of systems,including the development of new methods for recognizing automata by their geometric images,given both geometric curves and numerical sequences.展开更多
基金supported by the National Key R&D Program of China under Contract No.2022YFA1602200the International Partnership Program of the Chineses Academy of Sciences under Grant No.211134KYSB20200057the STCF Key Technology Research and Development Project.
文摘The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics community.It is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or higher.The STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEPCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the Standard Model.The STCF project in China is under development with an extensive R&D program.This document presents the physics opportunities at the STCF,describes conceptual designs of the STCF detector system,and discusses future plans for detector R&D and physics case studies.
基金Supported by the Russian Science Foundation(14-50-00080)Russian Foundation for Basic Research(13-02-00215-a+6 种基金13-02-01134-a14-02-00580-a14-02-31275-mol-a14-02-00047-a14-02-31478-mol-a14-02-9133215-02-05674)
基金Supported in Part by the Russian Science Foundation(14-50-00080)Russian Foundation for Basic Research(RFBR 13-02-00215-a,RFBR 13-02-01134-a,RFBR 14-02-00580-a,RFBR 14-02-31275-mol-a,RFBR 14-02-00047-a,RFBR 14-02-31478-mol-a,RFBR 14-02-91332,RFBR 15-02-0567)
文摘报道了用CMD-3在2011-2012年收集的积分亮度为22 pb-1的研究结果.在CMD-3当前的统计量下,只能被确定Ф(1020)η中间共振态.在1.59-2.0 Ge V能区的30个能量点测量了e^+e^-→Ф(1020)η.分析中,将η介子当做反冲粒子,穷尽了η衰变的所有模式,选出的事例总数为1454±48.测量的截面近似为Ф(1680)和非共振振幅按照矢量介子主导模型的叠加,并得到了Ф(1680)介子共振参数的初步结果.
基金Supported in Part by the Russian Education and Science Ministry(RFMEFI61014X0002)Russian Foundation for Basic Research(RFBR 13-02-00991-a,RFBR 13-02-00215-a,RFBR12-02-01032-a,RFBR 13-02-01134-a,RFBR 14-02-00580-a,RFBR 14-02-31275-mol-a,RFBR 14-02-00047-a,RFBR 14-02-31478-mol-a,RFBR 14-02-91332 and the DFG grant HA 1457/9-1)
基金Supported by Russian Fundation for Basic Research(10-02-00695-a10-02-00253-a+8 种基金11-02-00328-a11-02-00112-a12-02-31501-mol-a12-02-31499-mol-a12-02-31498-mol-a12-02-01032-a13-02-00215-a15-02-05674-a)Federal Target Program(14.B37.21.07777)
文摘The laws of functioning of discrete deterministic dynamical systems are investigated,presented in the form of automata models defined by geometric images.Due to the use of the apparatus of geometric images of automata,developed by V.A.Tverdokhlebov,the analysis of automata models is carried out on the basis of the analysis of mathematical structures represented by geometric curves and numerical sequences.The purpose of present research is to further develop the mathematical apparatus of geometric images of automaton models of systems,including the development of new methods for recognizing automata by their geometric images,given both geometric curves and numerical sequences.
