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We present a feasibility study of a simultaneous sub-percent extraction of the weak charge and the weak radius of the ${}^{12}$C nucleus using parity-violating electron scattering, based on a largely model-independent assessment of the…

Theories that attempt to explain the observed cosmic acceleration by modifying general relativity all introduce a new scalar degree of freedom that is active on large scales, but is screened on small scales to match experiments. We show…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-10 Lam Hui , Alberto Nicolis , Christopher Stubbs

We focus on the fact that light-pulse atom interferometers measure the atoms' acceleration with only three data points per drop. As a result, the measured effect of the gravity gradient is systematically larger than the true one, an error…

Atomic Physics · Physics 2020-02-19 Anna M. Nobili , Alberto Anselmi , Raffaello Pegna

Bell's theorem applies to the normalizable approximations of the original Einstein-Podolsky-Rosen (EPR) state. The constructions of the proof require measurements difficult to perform, and dichotomic observables. By noticing the fact that…

Quantum Physics · Physics 2015-03-12 Krzysztof Rosołek , Magdalena Stobińska , Marcin Wieśniak , Marek Żukowski

A new precision measurement of the parity violating analyzing power in longitudinally polarized electron scattering from the proton at very low Q^2 at an incident energy of 1.16 GeV is in the final stages of preparation for execution at…

Nuclear Experiment · Physics 2008-11-26 Qweak Collaboration , Willem T. H. van Oers

Electronic structure enhancement factors of simultaneous parity and time-reversal violation ($\mathcal{P,T}$-violation) caused by an electric dipole moment of the electron (eEDM) and scalar-pseudoscalar nucleon-electron current (SPNEC)…

Chemical Physics · Physics 2020-01-22 Konstantin Gaul , Robert Berger

In this paper we propose and analyze a virtual element method to approximate the natural frequencies of the acoustic eigenvalue problem with polygonal meshes that allow the presence of small edges. With the aid of a suitable seminorm that…

Numerical Analysis · Mathematics 2023-10-13 Danilo Amigo , Felipe Lepe , Gonzalo Rivera

Many studies have examined the shortcomings of word error rate (WER) as an evaluation metric for automatic speech recognition (ASR) systems. Since WER considers only literal word-level correctness, new evaluation metrics based on semantic…

Computation and Language · Computer Science 2023-12-04 Zitha Sasindran , Harsha Yelchuri , T. V. Prabhakar , Supreeth Rao

Comparing the parameterized post-Newtonian parameter $\gamma$ values for different types of particles, or the same type of particles with different energies is an important method to test the Einstein Equivalence Principle (EEP). Assuming…

High Energy Astrophysical Phenomena · Physics 2016-04-12 Zhi-Xing Luo , Bo Zhang , Jun-Jie Wei , Xue-Feng Wu

Wide classes of new fundamental physics theories cause apparent variations in particle mass ratios in space and time. In theories that violate the weak equivalence principle (EP), those variations are not uniform across all particles and…

The Einstein equivalence principle is based on the equality of gravitational mass and inertial mass, which has led to the universality of a free-fall concept. The principle has been extremely well tested so far and has been tested with a…

General Relativity and Quantum Cosmology · Physics 2023-03-06 Sougato Bose , Anupam Mazumdar , Martine Schut , Marko Toroš

We review the progress made in the determination of the weak charge, Q\_w, of the cesium nucleus which raises the status of Atomic Parity Violation measurements to that of a precision electroweak test. Not only is it necessary to have a…

Atomic Physics · Physics 2016-08-16 Jocelyne Guéna , Michel Lintz , Marie-Anne Bouchiat

Quantitative measurements of medium energy electron (MEE) precipitation ($>$40 keV) are a key to understand the total effect of particle precipitation on the atmosphere. The Medium Energy Proton and Electron Detector (MEPED) instrument on…

Space Physics · Physics 2019-06-26 H. Nesse Tyssøy , A. Haderlein , M. I. Sandanger , J. Stadsnes

We report on a conceptually new test of the equivalence principle performed by measuring the acceleration in Earth's gravity field of two isotopes of strontium atoms, namely, the bosonic $^{88}$Sr isotope which has no spin vs the fermionic…

Atomic Physics · Physics 2014-07-11 M. G. Tarallo , T. Mazzoni , N. Poli , D. V. Sutyrin , X. Zhang , G. M. Tino

The cohesion of particles has a significant effect on the properties of small bodies. In this study, we measured in open air, the cohesive forces of tens of micron-sized irregularly shaped meteorite, silica sand, glass powder, and spherical…

Earth and Planetary Astrophysics · Physics 2021-03-03 Yuuya Nagaashi , Takanobu Aoki , Akiko M. Nakamura

We present here the performance of a simultaneous dual-species matter-wave accelerometer for measuring the differential acceleration between two different atomic species ($^{87}$Rb and $^{85}$Rb). We study the expression and the extraction…

Atomic Physics · Physics 2015-08-26 A. Bonnin , N. Zahzam , Y. Bidel , A. Bresson

Analysis of Lunar Laser Ranging (LLR) data provides science results: gravitational physics and ephemeris information from the orbit, lunar science from rotation and solid-body tides, and Earth science. Sensitive tests of gravitational…

General Relativity and Quantum Cosmology · Physics 2007-05-23 James G. Williams , Dale H. Boggs , Slava G. Turyshev , J. Todd Ratcliff

An approximate analytical formula for the capacitance of a non-parallel plate capacitor with small values of inclination angles and distance separations of the plates is presented. Most applications involving position sensing that are…

General Relativity and Quantum Cosmology · Physics 2013-05-20 Bijunath R. Patla

We study the impact of nuclear structure uncertainties on a measurement of the weak charge of $^{12}\mathrm{C}$ at the future MESA facility in Mainz. Information from a large variety of nuclear models, accurately calibrated to the…

High Energy Physics - Phenomenology · Physics 2024-10-10 Matteo Cadeddu , Nicola Cargioli , Jens Erler , Mikhail Gorchtein , Jorge Piekarewicz , Xavier Roca-Maza , Hubert Spiesberger