Dark matter, millicharges, axion and scalar particles, gauge bosons, and other new physics with LDMX

被引：167

作者：

Berlin, Asher ^{[1
]}

Blinov, Nikita ^{[1
]}

Krnjaic, Gordan ^{[2
]}

Schuster, Philip ^{[1
]}

Toro, Natalia ^{[1
]}

机构：

[1] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[2] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA

来源：

PHYSICAL REVIEW D | 2019年 / 99卷 / 07期

基金：

美国国家科学基金会;

关键词：

SEARCH; LIMITS;

D O I：

10.1103/PhysRevD.99.075001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The proposed LDMX experiment would provide roughly a meter-long region of instrumented tracking and calorimetry that acts as a beam stop for multi-GeV electrons in which each electron is tagged and its evolution measured. This would offer an unprecedented opportunity to access both collider-invisible and ultrashort-lifetime decays of new particles produced in electron (or muon) nuclear fixed-target collisions. In this paper, we show that the missing momentum channel and displaced decay signals in such an experiment could provide world-leading sensitivity to sub-GeV dark matter, millicharged particles, and visibly or invisibly decaying axions, scalars, dark photons, and a range of other new physics scenarios.

引用

页数：38

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