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CPT and Lorentz Symmetry最新文献

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Searches for Lorentz-Violating Signals with Astrophysical Polarization Measurements 用天体物理偏振测量搜索违反洛伦兹的信号
CPT and Lorentz Symmetry Pub Date : 2019-07-15 DOI: 10.1142/9789811213984_0041
F. Kislat
{"title":"Searches for Lorentz-Violating Signals with Astrophysical Polarization Measurements","authors":"F. Kislat","doi":"10.1142/9789811213984_0041","DOIUrl":"https://doi.org/10.1142/9789811213984_0041","url":null,"abstract":"Astrophysical observations are a powerful tool to constrain effects of Lorentz-invariance violation in the photon sector. Objects at high redshifts provide the longest possible baselines, and gamma-ray telescopes allow us to observe some of the highest energy photons. Observations include polarization measurements and time-of-flight measurements of transient or variable objects to constrain vacuum birefringence and dispersion. Observing multiple sources covering the entire sky allows the extraction of constraints on anisotropy. In this paper, I review methods and recent results on Lorentz- and CPT-invariance violation constraints derived from astrophysical polarization measurements in the framework of the Standard-Model Extension.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130346415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Lorentz Violation in High-Energy Hadron Collisions 高能强子碰撞中的洛伦兹破坏
CPT and Lorentz Symmetry Pub Date : 2019-07-14 DOI: 10.22323/1.352.0097
E. Lunghi, A. Kostelecký, N. Sherrill, A. Vieira
{"title":"Lorentz Violation in High-Energy Hadron Collisions","authors":"E. Lunghi, A. Kostelecký, N. Sherrill, A. Vieira","doi":"10.22323/1.352.0097","DOIUrl":"https://doi.org/10.22323/1.352.0097","url":null,"abstract":"We present an overview of Lorentz violation in high-energy collisions focusing on deep inelastic scattering and Drell–Yan at hadron-hadron colliders. We further discuss the bounds that can be attainable by sidereal-time studies of these processes at HERA, the planned Electron–Ion Collider, and the LHC.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116207130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Renormalization in Nonminimal Lorentz-Violating Field Theory 非极小洛伦兹违反场论中的重整化
CPT and Lorentz Symmetry Pub Date : 2019-07-02 DOI: 10.1142/9789811213984_0035
J. Nascimento, A. Petrov, C. M. Reyes
{"title":"Renormalization in Nonminimal Lorentz-Violating Field Theory","authors":"J. Nascimento, A. Petrov, C. M. Reyes","doi":"10.1142/9789811213984_0035","DOIUrl":"https://doi.org/10.1142/9789811213984_0035","url":null,"abstract":"We provide the first step towards renormalization in a nonminimal Lorentz-violating model consisting of normal scalars and modified fermions with mass dimension five operators. We compute the radiative corrections corresponding to the scalar self-energy, and we show that some divergencies are improved and in the scalar sector they are finite. The pole mass of the scalar two-point function is found and shown to lead to modifications of asymptotic states.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122091372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CPT- and Lorentz-Violation Tests with Muon g − 2 μ子g−2的CPT-和lorentz -违反检验
CPT and Lorentz Symmetry Pub Date : 2019-06-29 DOI: 10.1142/9789811213984_0044
B. Quinn
{"title":"CPT- and Lorentz-Violation Tests with Muon g − 2","authors":"B. Quinn","doi":"10.1142/9789811213984_0044","DOIUrl":"https://doi.org/10.1142/9789811213984_0044","url":null,"abstract":"The status of Lorentz- and CPT-violation searches using measurements of the anomalous magnetic moment of the muon is reviewed. Results from muon g-2 experiments have set the majority of the most stringent limits on Standard- Model Extension Lorentz and CPT violation in the muon sector. These limits are consistent with calculations of the level of Standard-Model Extension effects required to account for the current 3.7{sigma} experiment-theory discrepancy in the muon's g-2. The prospects for the new Muon g-2 Experiment at Fermilab to improve upon these searches is presented.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128026666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
First Demonstration of Antimatter Quantum Interferometry 反物质量子干涉测量的首次演示
CPT and Lorentz Symmetry Pub Date : 2019-06-20 DOI: 10.1142/9789811213984_0028
M. Giammarchi
{"title":"First Demonstration of Antimatter Quantum Interferometry","authors":"M. Giammarchi","doi":"10.1142/9789811213984_0028","DOIUrl":"https://doi.org/10.1142/9789811213984_0028","url":null,"abstract":"This paper descrives the first experimental evidence of antimatter-wave interference, a process at the heart of Quantum Physics and its interpretation. For the case of ordinary matter particles, interference phenomena have been observed in a variety of cases, ranging to electrons up to complex molecules. Here I present the first demonstration of single-positrons quantum interference.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115351423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Standard-Model Extension Constraints on Lorentz and CPT Violation from Optical Polarimetry of Active Galactic Nuclei 活动星系核光学偏振测量中洛伦兹和CPT破坏的标准模型扩展约束
CPT and Lorentz Symmetry Pub Date : 2019-06-17 DOI: 10.1142/9789811213984_0032
A. Friedman, D. Leon, R. Gerasimov, K. Crowley, Isaac A. Broudy, Yash Melkani, Walker Stevens, Delwin Johnson, G. Teply, D. Tytler, B. Keating, G. M. Cole
{"title":"Standard-Model Extension Constraints on Lorentz and CPT Violation from Optical Polarimetry of Active Galactic Nuclei","authors":"A. Friedman, D. Leon, R. Gerasimov, K. Crowley, Isaac A. Broudy, Yash Melkani, Walker Stevens, Delwin Johnson, G. Teply, D. Tytler, B. Keating, G. M. Cole","doi":"10.1142/9789811213984_0032","DOIUrl":"https://doi.org/10.1142/9789811213984_0032","url":null,"abstract":"Vacuum birefringence from Lorentz and CPT violation in the Standard-Model Extension can be constrained using ground-based optical polarimetry of extragalactic sources. We describe results from a pilot program with an automated system that can perform simultaneous optical polarimetry in multiple passbands on different telescopes with an effective 0.45 m aperture. Despite the limited collecting area, our polarization measurements of AGN using a wider effective optical passband than previous studies yielded individual line-of-sight constraints for Standard-Model Extension mass dimension $d = 5$ operators within a factor of about one to ten of comparable broadband polarimetric bounds obtained using data from a 3.6 m telescope with roughly 64 times the collecting area. Constraining more general anisotropic Standard-Model Extension coefficients at higher $d$ would require more AGN along different lines of sight. This motivates a future dedicated ground-based, multi-band, optical polarimetry AGN survey with $gtrsim 1$ m-class telescopes, to obtain state-of-the-art anisotropic Standard-Model Extension $d = 4, 5, 6$ constraints, while also using complementary archival polarimetry. This could happen more quickly and cost-effectively than via spectropolarimetry and long before more competitive constraints from space- or balloon-based x-ray/$gamma$-ray polarization measurements.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117352632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Lorentz-Violation Constraints with Astroparticle Physics 天体粒子物理学中的洛伦兹违和约束
CPT and Lorentz Symmetry Pub Date : 2019-06-14 DOI: 10.1142/9789811213984_0034
H. Mart'inez-Huerta
{"title":"Lorentz-Violation Constraints with Astroparticle Physics","authors":"H. Mart'inez-Huerta","doi":"10.1142/9789811213984_0034","DOIUrl":"https://doi.org/10.1142/9789811213984_0034","url":null,"abstract":"Astroparticle physics has recently reached a new status of precision due to the construction of new observatories, operating innovative technologies and the detection of large numbers of events and sources. The precise measurements of cosmic and gamma rays can be used as a test for fundamental physics, such as the Lorentz invariance violation (LV). Although LV signatures are expected to be small, the very high energies and long distances that astrophysical sources involve, lead to an unprecedented opportunity for this task. In this summary, exclusion limits results are presented from different types of astrophysical LV tests through the generic modification of the particle dispersion relation in the photon sector through the pair production threshold shifts and photon decay. Some perspectives for the next generations of gamma-ray telescopes are also addressed","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129744510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Exotic Spin-Dependent Interaction Searches at Indiana University 印第安纳大学的奇异自旋依赖相互作用搜索
CPT and Lorentz Symmetry Pub Date : 2019-06-14 DOI: 10.1142/9789811213984_0055
I. Lee, J. Shortino, J. Biermen, A. Din, A. Grossman, M. Gabel, E. Guess, C-Y. Liu, J. Long, S. Reger, A. Reid, M. Severinov, B. Short, W. Snow, E. Smith, M. Zhang, the Ariadne Collaboration
{"title":"Exotic Spin-Dependent Interaction Searches at Indiana University","authors":"I. Lee, J. Shortino, J. Biermen, A. Din, A. Grossman, M. Gabel, E. Guess, C-Y. Liu, J. Long, S. Reger, A. Reid, M. Severinov, B. Short, W. Snow, E. Smith, M. Zhang, the Ariadne Collaboration","doi":"10.1142/9789811213984_0055","DOIUrl":"https://doi.org/10.1142/9789811213984_0055","url":null,"abstract":"The axion is a hypothesized particle appearing in various theories beyond the Standard Model. It is a light spin-0 boson initially postulated to solve the strong CP problem and is also a strong candidate for dark matter. If the axion or an axion-like particle exists, it would mediate a P-odd and T-odd spin-dependent interaction. We describe two experiments under development at Indiana University-Bloomington to search for such an interaction.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128733856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Constraints on Lorentz-Invariance Violations from Gravitational-Wave Observations 引力波观测中洛伦兹不变性违反的约束
CPT and Lorentz Symmetry Pub Date : 2019-06-13 DOI: 10.1142/9789811213984_0020
A. Samajdar
{"title":"Constraints on Lorentz-Invariance Violations from Gravitational-Wave Observations","authors":"A. Samajdar","doi":"10.1142/9789811213984_0020","DOIUrl":"https://doi.org/10.1142/9789811213984_0020","url":null,"abstract":"Using a deformed dispersion relation for gravitational waves, Advanced LIGO and Advanced Virgo have been able to place constraints on violations of local Lorentz invariance as well as the mass of the graviton. We summarise the method to obtain the current bounds from the 10 significant binary black hole detections made during the first and second observing runs of the above detectors.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134158439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Establishing a Relativistic Model for Atomic Gravimeters 建立原子重力仪的相对论模型
CPT and Lorentz Symmetry Pub Date : 2019-06-11 DOI: 10.1142/9789811213984_0036
Ya-jie Wang, Y. Tan, C. Shao
{"title":"Establishing a Relativistic Model for Atomic Gravimeters","authors":"Ya-jie Wang, Y. Tan, C. Shao","doi":"10.1142/9789811213984_0036","DOIUrl":"https://doi.org/10.1142/9789811213984_0036","url":null,"abstract":"This work establishes a high-precision relativistic theoretical model: start from studying finite speed of light effect based on a coordinate transformation, and further extend the research methods to analyze the overall relativistic effects. This model promotes the development of testing General Relativity with atomic interferometry.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127346713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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