| 用实验确定新粒子X(3410)自旋宇称的一种方案 |
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| 引用本文： | 赵佩英,曾道桂,周长春.用实验确定新粒子X(3410)自旋宇称的一种方案[J].物理学报,1977,26(1):16-21. |
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| 作者姓名： | 赵佩英 曾道桂 周长春 |
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| 作者单位： | 北京大学物理系,工农兵学员;北京大学物理系,工农兵学员;北京大学物理系,工农兵学员 |
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| 摘 要： | 本文提出了用实验确定新粒子X(3410)自旋宇称的一种方案,建议在质心系总能量S1/2=3.684GeV的e+e-对撞产生ψ(3684)粒子的实验中,选取其中ψ粒子作辐射衰变ψ→X(3410)+γ的事例,测量伴随X产生的γ光子角分布和X作二体赝标介子衰变时赝标介子的能量分布。计算结果表明通过这样的测量就可以把X(3410)的自旋宇称明确而敏感地确定下来。
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| 收稿时间： | 1976-09-30 |
A PROPOSED PROCEDURE FOR EXPERIMENTAL DETERMINATION OF THE SPIN-PARITY OF THE NEW PARTICLE X(3410) |
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| ZHAO PEI-YING,ZENG DAO-GUI and ZHOU CHANG-CHUN.A PROPOSED PROCEDURE FOR EXPERIMENTAL DETERMINATION OF THE SPIN-PARITY OF THE NEW PARTICLE X(3410)[J].Acta Physica Sinica,1977,26(1):16-21. |
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| Authors: | ZHAO PEI-YING ZENG DAO-GUI and ZHOU CHANG-CHUN |
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| Abstract: | A procedure is proposed for the experimental determination of the spin-parity of the new particle X(3410). It consists of choosing the events representing the radiative decay ψ→X(3410) +γ from the ψ-production experiment at s1/2 = 6.84 GeV, and measuring the angular distribution of the y photon produced in the process, and also the energy distribution of two pseudo-scalar mesons from the subsequent decay of X. The result of calculation shows that the spin-parity of X(3410) can be determined with certainty and good sensitivity. |
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