Is the Non-Pointness of the Electron Observable in e+ e- Annihilation at Center-of-Mass Energies 55-207 GeV?

被引：0

作者：

Chen, Yutao ^{[1
]}

Lin, Chih-Hsun ^{[2
]}

Liu, Minghui ^{[1
]}

Sakharov, Alexander S. ^{[3
,4
]}

Ulbricht, Jurgen ^{[5
]}

Zhao, Jiawei ^{[1
]}

机构：

[1] Univ Sci & Technol China, Sch Phys Sci, 96 Jinzhai Rd, Hefei 230026, Peoples R China

[2] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[3] Manhattan Coll, Dept Phys & Astron, 4513 Manhattan Coll Pkwy, Riverdale, NY 10471 USA

[4] CERN, Expt Phys Dept, CH-1211 Geneva, Switzerland

[5] Swiss Fed Inst Technol, Inst Particle Phys & Astrophys, Wolfgang Pauli Str 27, CH-8093 Zurich, Switzerland

来源：

PHYSICS | 2023年 / 5卷 / 03期

关键词：

QED; contact interaction; beyond standard model; GIESSEN POLARIZATION FACILITY; HARD-PHOTON PRODUCTION; CROSS-SECTION; SPINNING PARTICLES; CLASSICAL-THEORY; FINAL-STATES; SEARCH; COLLISIONS; LEPTONS; HEAVY;

D O I：

10.3390/physics5030048

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The experimental data from VENUS, TOPAS, OPAL, DELPHI, ALEPH and L3 Collaborations collected from 1989 to 2003 are applied to study the quantum electrodynamics (QED) framework through the direct contact interaction term approach, using the annihilation reaction e(+) e(-) -> gamma gamma(gamma). The analysis involves performing a chi(2)-test to detect the presence of an excited electron, e*, and evidence of non-point like behavior in the e(+) e(-) annihilation zone. The analysis yields compelling results, showing a significant signal at a confidence level of approximately 5 standard deviations. These findings suggest the existence of an excited electron with a mass of 308 +/- 14 GeV and indicate the presence of a contact interaction characterized by a cutoff scale of 1253.53 +/- 226 GeV. Furthermore, the interpretation of the cutoff scale result in terms of a radius of (1.57 +/- 0.07) x 10(-17) cm raises an intriguing possibility regarding the electron's non-pointness.

引用

页码：752 / 783

页数：32

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