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CPT and Lorentz Symmetry最新文献

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Renormalization Group Ambiguities in the SME 中小企业中的重整组歧义
CPT and Lorentz Symmetry Pub Date : 2023-05-01 DOI: 10.1142/9789811275388_0003
B. Altschul
{"title":"Renormalization Group Ambiguities in the SME","authors":"B. Altschul","doi":"10.1142/9789811275388_0003","DOIUrl":"https://doi.org/10.1142/9789811275388_0003","url":null,"abstract":"","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115135051","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
Status of the GINGER Project GINGER项目的状态
CPT and Lorentz Symmetry Pub Date : 2023-03-22 DOI: 10.1142/9789811275388_0002
C. Altucci, F. Bajardi, A. Basti, N. Beverini, G. Carelli, S. Capozziello, S. Castellano, D. Ciampini, F. Daví, F. dell’Isola, Gaetano De Luca, R. Devoti, G. Di Somma, A. D. Di Virgilio, F. Fuso, I. Giorgio, A. Govoni, E. Maccioni, P. Marsili, A. Ortolan, A. Porzio, M. Ruggiero, R. Velotta
{"title":"Status of the GINGER Project","authors":"C. Altucci, F. Bajardi, A. Basti, N. Beverini, G. Carelli, S. Capozziello, S. Castellano, D. Ciampini, F. Daví, F. dell’Isola, Gaetano De Luca, R. Devoti, G. Di Somma, A. D. Di Virgilio, F. Fuso, I. Giorgio, A. Govoni, E. Maccioni, P. Marsili, A. Ortolan, A. Porzio, M. Ruggiero, R. Velotta","doi":"10.1142/9789811275388_0002","DOIUrl":"https://doi.org/10.1142/9789811275388_0002","url":null,"abstract":"Large frame ring laser gyroscopes, based on the Sagnac effect, are top sensitivity instrumentation to measure angular velocity with respect to the fixed stars. GINGER (Gyroscopes IN GEneral Relativity) project foresees the construction of an array of three large dimension ring laser gyroscopes, rigidly connected to the Earth. GINGER has the potentiality to measure general relativity effects and Lorentz Violation in the gravity sector, once a sensitivity of 10−9, or better, of the Earth rotation rate is obtained. Being attached to the Earth crust, the array will also provide useful data for geophysical investigation. For this purpose, it is at present under construction as part of the multi-components observatory called Underground Geophysics at Gran Sasso (UGSS). Sensitivity is the key point to determine the relevance of this instrument for fundamental science. The most recent progress in the sensitivity measurement, obtained on a ring laser prototype called GINGERINO, indicates that GINGER should reach the level of 1 part in 1011 of the Earth rotation rate.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"352 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132871613","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
Lorentz-Violating Electrodynamics with Sources and Mirrors 具有源和镜的违反洛伦兹电动力学
CPT and Lorentz Symmetry Pub Date : 2023-03-09 DOI: 10.1142/9789811275388_0049
A. F. Ferrari
{"title":"Lorentz-Violating Electrodynamics with Sources and Mirrors","authors":"A. F. Ferrari","doi":"10.1142/9789811275388_0049","DOIUrl":"https://doi.org/10.1142/9789811275388_0049","url":null,"abstract":"We look for modifications that can be derived from the Maxwell sector of the SME for the interaction between electrical charges and the electromagnetic field. The kind of problem that we are looking into is the one that might be found in a standard textbook on electromagnetism: given a set of electrical charges, in the presence of some non-trivial boundary condition (such as a mirror), find the electromagnetic field and the interaction energy between those charges. To study such kind of problem in the presence of LV coefficients, we calculate the modified propagator for the Maxwell field, and use it to calculate energy of a system given by an semi-transparent mirror and a point-like charge. We show how new effects appear in this case, such as a spontaneous torque acting on the system.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122105921","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
Modular J-PET with Improved o-Ps Detection Efficiency for CPT Tests 模块化J-PET提高了CPT测试的o-Ps检测效率
CPT and Lorentz Symmetry Pub Date : 2023-02-27 DOI: 10.1142/9789811275388_0061
N. Chug, A. Gajos
{"title":"Modular J-PET with Improved o-Ps Detection Efficiency for CPT Tests","authors":"N. Chug, A. Gajos","doi":"10.1142/9789811275388_0061","DOIUrl":"https://doi.org/10.1142/9789811275388_0061","url":null,"abstract":"J-PET is a photon detector built of plastic scintillators, which already has been commissioned for CPT studies in the decays of positronium. In the first experiment, J-PET has achieved a sensitivity to CPT violation at a level of 10^{-4}, and now it aims to reach a level of 10^{-5}. This will be done by enhancing the three-photon registration efficiency for ortho-positronium decays using a new layer of densely packed plastic scintillators termed Modular J-PET. We present the simulation studies performed for different experimental detection setups to be used for the next CPT test with the Modular J-PET detector.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116960807","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
Lorentz Violation in Neutrino Oscillations Using IceCube Atmospheric Neutrino Interferometry 用冰立方大气中微子干涉测量法研究中微子振荡中的洛伦兹破坏
CPT and Lorentz Symmetry Pub Date : 2023-02-17 DOI: 10.1142/9789811275388_0013
B. Skrzypek, C. Arguelles
{"title":"Lorentz Violation in Neutrino Oscillations Using IceCube Atmospheric Neutrino Interferometry","authors":"B. Skrzypek, C. Arguelles","doi":"10.1142/9789811275388_0013","DOIUrl":"https://doi.org/10.1142/9789811275388_0013","url":null,"abstract":"Lorentz invariance is a fundamental symmetry of spacetime underpinning the Standard Model (SM) and our understanding of high-energy phenomena in particle physics. However, beyond the quantum gravity scale, we expect the SM to be replaced with a more fundamental, covariant theory giving a quantum description of gravity. The effective theory arising from this theory can break Lorentz invariance and thus predicts observables that exhibit low-energy manifestations of Lorentz violation. In particular, these observables could be a subleading contribution to neutrino oscillations and could therefore explain anomalous flavor measurements. The Standard Model Extension (SME) formalism describing such an effective theory predicts terms whose characteristic oscillation length becomes significant at atmospheric neutrino energies accessible by the IceCube Neutrino Observatory. We descibe past measurements and efforts to extend these using ten years of data along with a new energy reconstruction to study $nu_{mu}$ disappearance.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129200726","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
Testing Discrete Symmetries in Ortho-Positronium Decays with the J-PET Detector 用J-PET探测器测试正交正电子衰变的离散对称性
CPT and Lorentz Symmetry Pub Date : 2023-02-08 DOI: 10.1142/9789811275388_0004
E. Czerwi'nski
{"title":"Testing Discrete Symmetries in Ortho-Positronium Decays with the J-PET Detector","authors":"E. Czerwi'nski","doi":"10.1142/9789811275388_0004","DOIUrl":"https://doi.org/10.1142/9789811275388_0004","url":null,"abstract":"A first result related to a CPT test in the decay of ortho-positronium based on data collected by means of the J-PET detector is already available, and a new test of CP symmetry is under investigation. Both results are based on the determination of angular correlations between momenta of gamma rays and other vector properties of the investigated system. Here, arguments for the possible usage of data collected by the J-PET group to test CPT symmetry within the Standard-Model Extension framework are shortly presented.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120954524","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
Testing CPT Invariance by High-Precision Comparisons of Fundamental Properties of Protons and Antiprotons at BASE 用质子和反质子基本性质的高精度比较检验CPT不变性
CPT and Lorentz Symmetry Pub Date : 2023-02-01 DOI: 10.1142/9789811275388_0001
E. Wursten, M. Borchert, J. Devlin, S. Erlewein, M. Fleck, J. Harrington, J. I. Jager, B. Latacz, P. Micke, G. Umbrazunas, F. Abbass, M. Bohman, S. Kommu, D. Popper, M. Wiesinger, C. Will, H. Yildiz, K. Blaum, Y. Matsuda, A. Mooser, C. Ospelkaus, A. Soter, W. Quint, J. Walz, Y. Yamazaki, C. Smorra, S. Ulmer
{"title":"Testing CPT Invariance by High-Precision Comparisons of Fundamental Properties of Protons and Antiprotons at BASE","authors":"E. Wursten, M. Borchert, J. Devlin, S. Erlewein, M. Fleck, J. Harrington, J. I. Jager, B. Latacz, P. Micke, G. Umbrazunas, F. Abbass, M. Bohman, S. Kommu, D. Popper, M. Wiesinger, C. Will, H. Yildiz, K. Blaum, Y. Matsuda, A. Mooser, C. Ospelkaus, A. Soter, W. Quint, J. Walz, Y. Yamazaki, C. Smorra, S. Ulmer","doi":"10.1142/9789811275388_0001","DOIUrl":"https://doi.org/10.1142/9789811275388_0001","url":null,"abstract":"The BASE collaboration at the Antiproton Decelerator facility of CERN compares the fundamental properties of protons and antiprotons using advanced Penning-trap systems. In previous measurement campaigns, we measured the magnetic moments of the proton and the antiproton, reaching (sub-)parts-in-a-billion fractional uncertainty. In the latest campaign, we have compared the proton and antiproton charge-to-mass ratios with a fractional uncertainty of 16 parts in a trillion. In this contribution, we give an overview of the measurement campaign, and detail how its results are used to constrain nine spin-independent coefficients of the Standard-Model Extension in the proton and electron sector.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126760145","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
Massive Gravity and Lorentz Symmetry 质量引力和洛伦兹对称
CPT and Lorentz Symmetry Pub Date : 2023-01-30 DOI: 10.1142/9789811275388_0012
R. Potting
{"title":"Massive Gravity and Lorentz Symmetry","authors":"R. Potting","doi":"10.1142/9789811275388_0012","DOIUrl":"https://doi.org/10.1142/9789811275388_0012","url":null,"abstract":"We consider Lorentz-symmetry properties of the ghost-free massive gravity theory proposed by de Rham, Gabadadze, and Tolley. In particular, we present potentially observable effects in gravitational-wave propagation and in Newton's law, including Lorentz-violating signals.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130909488","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
Probing Gravity for One Minute with an Optical-Lattice Atom Interferometer 用光学晶格原子干涉仪探测重力一分钟
CPT and Lorentz Symmetry Pub Date : 2023-01-30 DOI: 10.1142/9789811275388_0029
C. Panda, M. Tao, J. Eggelhof, M. Ceja, A. Reynoso, V. Xu, H. Mȕller
{"title":"Probing Gravity for One Minute with an Optical-Lattice Atom Interferometer","authors":"C. Panda, M. Tao, J. Eggelhof, M. Ceja, A. Reynoso, V. Xu, H. Mȕller","doi":"10.1142/9789811275388_0029","DOIUrl":"https://doi.org/10.1142/9789811275388_0029","url":null,"abstract":"We have realized an atom interferometer that probes gravitational potentials by holding, rather than dropping, atoms. Up to one minute of coherence times are realized by suspending the spatially separated atomic wave packets in an optical lattice that is mode-filtered by an optical cavity. This trapped configuration suppresses phase variance due to vibrations by four to five orders of magnitude, overcoming the dominant noise source in atom-interferometric gravimeters. Recent progress in characterizing and reducing interferometer decoherence led to major increases in coherence and precision, paving the way to measurements of dark-energy candidates and probes of the quantum nature of gravity through measuring the gravity of source masses with record precision and spatial resolution.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133397371","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
Measuring Lorentz Violation in Weak Gravity Fields 弱重力场中洛伦兹破坏的测量
CPT and Lorentz Symmetry Pub Date : 2023-01-30 DOI: 10.1142/9789811275388_0018
Zonghao Li
{"title":"Measuring Lorentz Violation in Weak Gravity Fields","authors":"Zonghao Li","doi":"10.1142/9789811275388_0018","DOIUrl":"https://doi.org/10.1142/9789811275388_0018","url":null,"abstract":"Many new linearized coefficients for Lorentz violation are discovered in our recent work on the construction of a generic Lorentz-violating effective field theory in curved spacetime. The new coefficients can be constrained by experiments in weak gravity fields. In this work, we compare experiments in different gravitational potentials and study three types of gravity-related experiments: free-fall, gravitational interferometer, and gravitational bound-state experiments. First constraints on the new coefficients for Lorentz violation are extracted from those experiments.","PeriodicalId":104099,"journal":{"name":"CPT and Lorentz Symmetry","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123824773","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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