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Fine-structure constant constraints on late-time dark energy transitions

We use recent astrophysical and local tests of the stability of the fine-structure constant, $\alpha$, to constrain a particular phenomenological but physically motivated class of models in which the dark energy equation of state can…

Cosmology and Nongalactic Astrophysics · Physics 2019-03-12 C. J. A. P. Martins , M. Prat Colomer

Einstein Probe discovery of EP J171159.4-333253: an eclipsing neutron star low-mass X-ray binary with clocked bursts

EP J171159.4-333253 is a new neutron-star low-mass X-ray binary discovered in outburst by the Einstein Probe (EP) on 2025 June 23, exhibiting clocked type-I X-ray bursts, eclipses and dips. In this paper, we report on the results of the…

High Energy Astrophysical Phenomena · Physics 2026-04-07 Y. L. Wang , F. Coti Zelati , E. Parent , A. Marino , N. Rea , V. S. Dhillon , J. Blanco-Pozo , I. Ribas , S. P. Littlefair , Z. H. Yang , G. B. Zhang , S. Guillot , K. R. Ni , J. H. Wu , A. Patruno , Y. Cavecchi , G. Illiano , A. Papitto , F. Ambrosino , B. F. Liu , H. Q. Cheng , H. Feng , J. W. Hu , C. C. Jin , H. Sun , L. Tao , Y. J. Xu , H. N. Yang , W. Yuan , Q. C. Zhao

Fisher matrix forecasts for astrophysical tests of the stability of the fine-structure constant

We use Fisher Matrix analysis techniques to forecast the cosmological impact of astrophysical tests of the stability of the fine-structure constant to be carried out by the forthcoming ESPRESSO spectrograph at the VLT (due for commissioning…

Cosmology and Nongalactic Astrophysics · Physics 2017-05-01 C. S. Alves , T. A. Silva , C. J. A. P. Martins , A. C. O. Leite

Experimental test of Non-Commutative Quantum Gravity by VIP-2 Lead

Pauli Exclusion Principle (PEP) violations induced by space-time non-commutativity, a class of universality for several models of Quantum Gravity, are investigated by the VIP-2 Lead experiment at the Gran Sasso underground National…

High Energy Physics - Theory · Physics 2023-01-18 Kristian Piscicchia , Andrea Addazi , Antonino Marciano , Massimiliano Bazzi , Michael Cargnelli , Alberto Clozza , Luca De Paolis , Raffaele Del Grande , Carlo Guaraldo , Mihail Antoniu Iliescu , Matthias Laubenstein , Johann Marton , Marco Miliucci , Fabrizio Napolitano , Alessio Porcelli , Alessandro Scordo , Diana Laura Sirghi , Florin Sirghi , Oton Vazquez Doce , Johann Zmeskal , Catalina Curceanu

Underground test of quantum mechanics - the VIP2 experiment

We are experimentally investigating possible violations of standard quantum mechanics predictions in the Gran Sasso underground laboratory in Italy. We test with high precision the Pauli Exclusion Principle and the collapse of the wave…

Quantum Physics · Physics 2017-04-27 Johann Marton , S. Bartalucci , A. Bassi , M. Bazzi , S. Bertolucci , C. Berucci , M. Bragadireanu , M. Cargnelli , A. Clozza , Catalina Curceanu , L. De Paolis , S. Di Matteo , S. Donadi , J. -P. Egger , C. Guaraldo , M. Iliescu , M. Laubenstein , E. Milotti , Andreas Pichler , D. Pietreanu , K. Piscicchia , A. Scordo , H. Shi , D. Sirghi F. Sirghi , L. Sperandio , O. Vazquez-Doce , E. Widmann , J. Zmeskal

Ionospheric Observations from the ISS: Overcoming Noise Challenges in Signal Extraction

The Electric Propulsion Electrostatic Analyzer Experiment (\`EP\`EE) is a compact ion energy bandpass filter deployed on the International Space Station (ISS) in March 2023 and providing continuous measurements through April 2024. This…

Space Physics · Physics 2026-03-19 Rachel Ulrich , Kelly R. Moran , Ky Potter , Lauren A. Castro , Gabriel R. Wilson , Carlos Maldonado

Gravitation at the mesoscopic scale

Free fall experiments are discussed by using test masses associated to quantum states not necessarily possessing a classical counterpart. The times of flight of the Galileian experiments using classical test masses are replaced in the…

Quantum Physics · Physics 2015-06-26 Roberto Onofrio , Lorenza Viola

Testing the equivalence principle with time-diffracted free-falling quantum particles

The equivalence principle of gravity is examined at the quantum level using the diffraction in time of matter waves in two ways. First, we consider a quasi-monochromatic beam of particles incident on a shutter which is removed at time $t =…

Quantum Physics · Physics 2022-07-12 Juan A. Cañas , J. Bernal , A. Martín-Ruiz

Testing the Gravitational Weak Equivalence Principle in the Standard-Model Extension with Binary Pulsars

The Standard-Model Extension provides a framework to systematically investigate possible violation of the Lorentz symmetry. Concerning gravity, the linearized version was extensively examined. We here cast the first set of experimental…

General Relativity and Quantum Cosmology · Physics 2019-04-17 Lijing Shao , Quentin G. Bailey

Tests of gravitational wave propagation with LIGO-Virgo catalog

In the framework of general relativity (GR), gravitational waves (GWs) travel at the speed of light across all frequencies. However, massive gravity and weak equivalence principle (WEP) violation may lead to frequency-dependent variations…

General Relativity and Quantum Cosmology · Physics 2025-01-07 Xian-Liang Wang , Shu-Cheng Yang , Wen-Biao Han

Stringent test of $CP$ symmetry in $\Sigma^+$ hyperon decays

The non-leptonic two-body weak decays $\Sigma^{+} \to p \pi^{0}$ and $\bar{\Sigma}^{-} \to \bar{p} \pi^{0}$ are investigated, utilizing $(1.0087\pm0.0044)\times10^{10}$ $J/\psi$ events and $(2.7124\pm0.0143)\times10^{9}$ $\psi(3686)$ events…

High Energy Physics - Experiment · Physics 2025-12-02 BESIII Collaboration , M. Ablikim , M. N. Achasov , P. Adlarson , X. C. Ai , R. Aliberti , A. Amoroso , Q. An , Y. Bai , O. Bakina , Y. Ban , H. -R. Bao , V. Batozskaya , K. Begzsuren , N. Berger , M. Berlowski , M. Bertani , D. Bettoni , F. Bianchi , E. Bianco , A. Bortone , I. Boyko , R. A. Briere , A. Brueggemann , H. Cai , M. H. Cai , X. Cai , A. Calcaterra , G. F. Cao , N. Cao , S. A. Cetin , X. Y. Chai , J. F. Chang , G. R. Che , Y. Z. Che , G. Chelkov , C. Chen , C. H. Chen , Chao Chen , G. Chen , H. S. Chen , H. Y. Chen , M. L. Chen , S. J. Chen , S. L. Chen , S. M. Chen , T. Chen , X. R. Chen , X. T. Chen , Y. B. Chen , Y. Q. Chen , Z. J. Chen , Z. K. Chen , S. K. Choi , X. Chu , G. Cibinetto , F. Cossio , J. J. Cui , H. L. Dai , J. P. Dai , A. Dbeyssi , R. E. de Boer , D. Dedovich , C. Q. Deng , Z. Y. Deng , A. Denig , I. Denysenko , M. Destefanis , F. De Mori , B. Ding , X. X. Ding , Y. Ding , Y. Ding , Y. X. Ding , J. Dong , L. Y. Dong , M. Y. Dong , X. Dong , M. C. Du , S. X. Du , Y. Y. Duan , Z. H. Duan , P. Egorov , G. F. Fan , J. J. Fan , Y. H. Fan , J. Fang , J. Fang , S. S. Fang , W. X. Fang , Y. Q. Fang , R. Farinelli , L. Fava , F. Feldbauer , G. Felici , C. Q. Feng , J. H. Feng , Y. T. Feng , M. Fritsch , C. D. Fu , J. L. Fu , Y. W. Fu , H. Gao , X. B. Gao , Y. N. Gao , Y. N. Gao , Y. Y. Gao , Yang Gao , S. Garbolino , I. Garzia , P. T. Ge , Z. W. Ge , C. Geng , E. M. Gersabeck , A. Gilman , K. Goetzen , J. D. Gong , L. Gong , W. X. Gong , W. Gradl , S. Gramigna , M. Greco , M. H. Gu , Y. T. Gu , C. Y. Guan , A. Q. Guo , L. B. Guo , M. J. Guo , R. P. Guo , Y. P. Guo , A. Guskov , J. Gutierrez , K. L. Han , T. T. Han , F. Hanisch , K. D. Hao , X. Q. Hao , F. A. Harris , K. K. He , K. L. He , F. H. Heinsius , C. H. Heinz , Y. K. Heng , C. Herold , T. Holtmann , P. C. Hong , G. Y. Hou , X. T. Hou , Y. R. Hou , Z. L. Hou , B. Y. Hu , H. M. Hu , J. F. Hu , Q. P. Hu , S. L. Hu , T. Hu , Y. 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Li , W. G. Li , X. Li , X. H. Li , X. L. Li , X. Y. Li , X. Z. Li , Y. Li , Y. G. Li , Y. P. Li , Z. J. Li , Z. Y. Li , C. Liang , H. Liang , Y. F. Liang , Y. T. Liang , G. R. Liao , L. B. Liao , M. H. Liao , Y. P. Liao , J. Libby , A. Limphirat , C. C. Lin , C. X. Lin , D. X. Lin , L. Q. Lin , T. Lin , B. J. Liu , B. X. Liu , C. Liu , C. X. Liu , F. Liu , F. H. Liu , Feng Liu , G. M. Liu , H. Liu , H. B. Liu , H. H. Liu , H. M. Liu , Huihui Liu , J. B. Liu , J. J. Liu , K. Liu , K. Liu , K. Y. Liu , Ke Liu , L. Liu , L. C. Liu , Lu Liu , P. L. Liu , Q. Liu , S. B. Liu , T. Liu , W. K. Liu , W. M. Liu , W. T. Liu , X. Liu , X. Liu , X. Y. Liu , Y. Liu , Y. Liu , Y. Liu , Y. B. Liu , Z. A. Liu , Z. D. Liu , Z. Q. Liu , X. C. Lou , F. X. Lu , H. J. Lu , J. G. Lu , Y. Lu , Y. H. Lu , Y. P. Lu , Z. H. Lu , C. L. Luo , J. R. Luo , J. S. Luo , M. X. Luo , T. Luo , X. L. Luo , Z. Y. Lv , X. R. Lyu , Y. F. Lyu , Y. H. Lyu , F. C. Ma , H. Ma , H. L. Ma , J. L. Ma , L. L. Ma , L. R. Ma , Q. M. 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A Simple Test of the Equivalence Principle(s) for Quantum Superpositions

We propose a simple experimental test of the quantum equivalence principle introduced by Zych and Brukner [arXiv:1502.00971], which generalises the Einstein equivalence principle to superpositions of internal energy states. We consider a…

Quantum Physics · Physics 2016-09-13 Patrick J. Orlando , Robert B. Mann , Kavan Modi , Felix A. Pollock

Science objectives of the Einstein Probe mission

The Einstein Probe (EP) is an interdisciplinary mission of time-domain and X-ray astronomy. Equipped with a wide-field lobster-eye X-ray focusing imager, EP will discover cosmic X-ray transients and monitor the X-ray variability of known…

High Energy Astrophysical Phenomena · Physics 2025-01-14 Weimin Yuan , Lixin Dai , Hua Feng , Chichuan Jin , Peter Jonker , Erik Kuulkers , Yuan Liu , Kirpal Nandra , Paul O'Brien , Luigi Piro , Arne Rau , Nanda Rea , Jeremy Sanders , Lian Tao , Junfeng Wang , Xuefeng Wu , Bing Zhang , Shuangnan Zhang , Shunke Ai , Johannes Buchner , Esra Bulbul , Hechao Chen , Minghua Chen , Yong Chen , Yu-Peng Chen , Alexis Coleiro , Francesco Coti Zelati , Zigao Dai , Xilong Fan , Zhou Fan , Susanne Friedrich , He Gao , Chong Ge , Mingyu Ge , Jinjun Geng , Giancarlo Ghirlanda , Giulia Gianfagna , Lijun Gou , Sébastien Guillot , Xian Hou , Jingwei Hu , Yongfeng Huang , Long Ji , Shumei Jia , S. Komossa , Albert K. H. Kong , Lin Lan , An Li , Ang Li , Chengkui Li , Dongyue Li , Jian Li , Zhaosheng Li , Zhixing Ling , Ang Liu , Jinzhong Liu , Liangduan Liu , Zhu Liu , Jiawei Luo , Ruican Ma , Pierre Maggi , Chandreyee Maitra , Alessio Marino , Stephen Chi-Yung Ng , Haiwu Pan , Surangkhana Rukdee , Roberto Soria , Hui Sun , Pak-Hin Thomas Tam , Aishwarya Linesh Thakur , Hui Tian , Eleonora Troja , Wei Wang , Xiangyu Wang , Yanan Wang , Junjie Wei , Sixiang Wen , Jianfeng Wu , Ting Wu , Di Xiao , Dong Xu , Renxin Xu , Yanjun Xu , Yu Xu , Haonan Yang , Bei You , Heng Yu , Yunwei Yu , Binbin Zhang , Chen Zhang , Guobao Zhang , Liang Zhang , Wenda Zhang , Yu Zhang , Ping Zhou , Zecheng Zou

Equivalence Principle (EP) and Solar System Constraints on $R(1\pm \epsilon \ln({R \over R_c}))$ model of Gravity

Experiments on the violation of equivalence principle (EP) and solar system give a number of constraints in which any modified gravity model must satisfy them. We study these constraints on a kind of $f(R)$ gravity as $f(R) = R(1\pm…

General Relativity and Quantum Cosmology · Physics 2014-01-20 Kh. Saaidi , A. Aghamohammadi

Efficient tests for bio-equivalence in functional data

We study the problem of testing the equivalence of functional parameters (such as the mean or variance function) in the two sample functional data problem. In contrast to previous work, which reduces the functional problem to a multiple…

Statistics Theory · Mathematics 2020-04-28 Holger Dette , Kevin Kokot

KMT-2023-BLG-2669: Ninth Free-floating Planet Candidate with $\theta_{\rm E}$ measurements

We report a free-floating planet (FFP) candidate identified from the analysis of the microlensing event KMT-2023-BLG-2669. The lensing light curve is characterized by a short duration $(\lesssim 3\,{\rm days})$ and a small amplitude…

Earth and Planetary Astrophysics · Physics 2024-08-05 Youn Kil Jung , Kyu-Ha Hwang , Hongjing Yang , Andrew Gould , Jennifer C. Yee , Cheongho Han , Michael D. Albrow , Sun-Ju Chung , Yoon-Hyun Ryu , In-Gu Shin , Yossi Shvartzvald , Weicheng Zang , Sang-Mok Cha , Dong-Jin Kim , Seung-Lee Kim , Chung-Uk Lee , Dong-Joo Lee , Yongseok Lee , Byeong-Gon Park , Richard W. Pogge

The Values of $m_t$ and $\bar{\alpha_s}$ Derived from the Non-Observation of Electroweak Radiative Corrections at LEP: Global Fit

A set of equations representing the $W/Z$ mass ratio and various observables of $Z$ decays in terms of $\bar\alpha \equiv\alpha (m_Z)$, $G_{\mu}$, $m_Z$, $m_t$, $m_H$, $\bar\alpha_{s} \equiv\alpha_{s} (m_Z)$, $m_b$ and $m_\tau$ (all other…

High Energy Physics - Phenomenology · Physics 2009-10-28 V. A. Novikov , L. B. Okun , A. N. Rozanov , M. I. Vysotsky , V. P. Yurov

VIP 2: Experimental tests of the Pauli Exclusion Principle for electrons

The Pauli Exclusion Principle (PEP) was famously discovered in 1925 by the austrian physicist Wolfgang Pauli. Since then, it underwent several experimental tests. Starting in 2006, the VIP (Violation of the Pauli Principle) experiment…

Instrumentation and Detectors · Physics 2016-02-03 A. Pichler , S. Bartalucci , M. Bazzi , S. Bertolucci , C. Berucci , M. Bragadireanu , M. Cargnelli , A. Clozza , C. Curceanu , L. De Paolis , S. Di Matteo , A. D'Uffizi , J. -P. Egger , C. Guaraldo , M. Iliescu , T. Ishiwatari , M. Laubenstein , J. Marton , E. Milotti , D. Pietreanu , K. Piscicchia , T. Ponta , E. Sbardella , A. Scordo , H. Shi , D. Sirghi , F. Sirghi , L. Sperandio , O. Vazquez-Doce , E. Widmann , J. Zmeskal

Benchmarking the Non-flow Contributions to the Elliptic Flow Parameter ($v_{_2}$) in Proton-Proton Collisions

This manuscript reports on the elliptic flow parameter, $v_{_2}$, in proton-proton (p-p) collisions using PYTHIA8 event generator simulations. The typical Event Plane ($EP$) method $v_{_2}$($EP$) as the one used for the real data analysis…

High Energy Physics - Phenomenology · Physics 2024-10-02 M. I. Abdulhamid , A. M. Hamed , E. A. Osama , M. Rateb , N. K. Sadoun , F. H. Sawy

Precision Tests of the MSSM

The LEP data and the measurement of $M_W$ confirm the electro weak symmetry breaking by the Higgs mechanism with (2--3)\% accuracy. For the Higgs boson mass, fits to the present data (without the SLD result) give $M_h=121^{+207}_{-118}$ GeV…

High Energy Physics - Phenomenology · Physics 2009-10-28 P. H. Chankowski , S. Pokorski