Limit on the electric charge of antihydrogen
Limit on the electric charge of antihydrogen
复制标题
反氢电荷的限制
DOI：
10.1007/s10751-016-1382-6
复制
发表时间：
2016
影响因子：
--
通讯作者：
Capra A
中科院分区：
文献类型：
--
作者：
Capra A
阿尔法合作已经成功地证明了冷反氢的生产和限制。对捕获数据的分析允许对最简单的反原子的电荷进行严格的限制。物质的电中性已知有很高的精确度，因此中性极限H提供了CPT不变性的测试。该实验技术是基于测量带电质子在电场中的偏转。被困的H原子被静电场位移的趋势进行测量，并进行比较，详细模拟的H动力学的陷阱中的结果。对系统误差进行了广泛的调查，这项工作的重点是由于硅顶点探测器，这是用于确定H ∞湮灭位置的设备。H原子电荷的极限为Q =（−1.3 ± 1.8 ± 0.4）× 10−8，这是首次用H进行精确测量[1]。
The ALPHA collaboration has successfully demonstrated the production and the confinement of cold antihydrogen, H̅. An analysis of trapping data allowed a stringent limit to be placed on the electric charge of the simplest antiatom. Charge neutrality of matter is known to a very high precision, hence a neutrality limit of H̅ provides a test of CPT invariance. The experimental technique is based on the measurement of the deflection of putatively charged H̅ in an electric field. The tendency for trapped H̅ atoms to be displaced by electrostatic fields is measured and compared to the results of a detailed simulation of H̅ dynamics in the trap. An extensive survey of the systematic errors was performed, and this work focuses on those due to the silicon vertex detector, which is the device used to determine the H̅ annihilation position. The limit obtained on the charge of the H̅ atom isQ= (−1.3 ± 1.8 ± 0.4) × 10−8, representing the first precision measurement with H̅ [1].
影响因子：
19.6
作者：
Andresen, G. B.;Ashkezari, M. D.;Yamazaki, Y.
通讯作者：
Yamazaki, Y.
影响因子：
2.9
作者：
Bressi, G.;Carugno, G.;Sartori, G.
通讯作者：
Sartori, G.
在 ALPHA 用捕获的反氢测试 CPT 和反重力
DOI：
--
发表时间：
2015
期刊：
影响因子：
--
作者：
A. Capra
通讯作者：
A. Capra