利用 CEPC 探测器的最新设计测量综合光度时计量学的不确定性

IF 3.5 4区物理与天体物理 Q1 Physics and Astronomy

Progress of Theoretical and Experimental Physics Pub Date : 2024-09-11 DOI:10.1093/ptep/ptae141

Ivan Smiljanić, Ivanka Božović, Goran Kačarević

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引用次数: 0

摘要

为了以 10-4 的精度测量 Z0 极的综合光度，拟议中的 CEPC e+e- 对撞机需要一个光度计，这是一个专门设计的热量计，放置在非常靠前的区域，以识别低极角的巴哈散射。通常情况下，这种装置被放置在出束处，以保持加速器正面碰撞的空间对称性，交叉角不为零。目前，CEPC 建议将光度计放置在 Z 轴上。我们审查了以所需精度测量Z0极点综合光度的可行性，涉及以Z轴为中心的光度计和CDR后光束特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Uncertainties from metrology in the integrated luminosity measurement with the updated design of a detector at CEPC

In order to measure integrated luminosity with a required precision of 10−4 at the Z0 pole, proposed CEPC e+e− collider requires a luminometer, a specially designed calorimeter placed in the very forward region to identify Bhabha scattering at low polar angles. Usually, such a device is placed at the outgoing beams, to keep the spatial symmetries of the head-on collisions at accelerators with a non-zero crossing angle. At CEPC it is currently proposed to place the luminometer on the z-axis. We review a feasibility of a measurement of the integrated luminosity at the Z0 pole with the required precision, concerning the luminometer centered around the z-axis and the post-CDR beam properties.

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来源期刊

Progress of Theoretical and Experimental Physics PHYSICS, MULTIDISCIPLINARY-PHYSICS, PARTICLES & FIELDS

CiteScore

12.00

自引率

5.70%

发文量

148

审稿时长

17 weeks

期刊介绍： Progress of Theoretical and Experimental Physics (PTEP) is an international journal that publishes articles on theoretical and experimental physics. PTEP is a fully open access, online-only journal published by the Physical Society of Japan. PTEP is the successor to Progress of Theoretical Physics (PTP), which terminated in December 2012 and merged into PTEP in January 2013. PTP was founded in 1946 by Hideki Yukawa, the first Japanese Nobel Laureate. PTEP, the successor journal to PTP, has a broader scope than that of PTP covering both theoretical and experimental physics. PTEP mainly covers areas including particles and fields, nuclear physics, astrophysics and cosmology, beam physics and instrumentation, and general and mathematical physics.