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Relativistic redshift of the star S0-2 orbiting the Galactic Center supermassive black hole
A combination of special relativistic and gravitational redshift is detected, quantified using the redshift parameter ϒ, which is consistent with general relativity and excludes a Newtonian model with a statistical significance of 5σ.
CMS physics technical design report: Addendum on high density QCD with heavy ions
This report presents the capabilities of the CMS experiment to explore the rich heavy-ion physics programme offered by the CERN Large Hadron Collider (LHC). The collisions of lead nuclei at energies
Violation of the equivalence principle from light scalar dark matter
In this paper, we study the local observational consequences of a violation of the Einstein Equivalence Principle induced by models of light scalar Dark Matter (DM). We focus on two different models
Constraints on modified Newtonian dynamics theories from radio tracking data of the Cassini spacecraft
Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena CA 91109(Dated: March 4, 2014)The MOdi ed Newtonian Dynamics (MOND) is an attempt to modify the
The Post-periapsis Evolution of Galactic Center Source G1: The Second Case of a Resolved Tidal Interaction with a Supermassive Black Hole
We present new adaptive optics (AO) imaging and spectroscopic measurements of Galactic center source G1 from W. M. Keck Observatory. Our goal is to understand its nature and relationship to G2, which
Prospects for Diffractive and Forward Physics at the LHC
The CMS and TOTEM experiments intend to carry out a joint diffractive/forward physics program with an unprecedented rapidity coverage. The present document outlines some aspects of such a physics
Testing General Relativity with Stellar Orbits around the Supermassive Black Hole in Our Galactic Center.
This analysis provides the first fully self-consistent test of the gravitational theory using orbital dynamic in a strong gravitational regime, that of a supermassive black hole, which can be used to constrain various gravitational and astrophysical theories.
Breaking of the equivalence principle in the electromagnetic sector and its cosmological signatures
This paper proposes a systematic study of cosmological signatures of modifications of gravity via the presence of a scalar field with a multiplicative coupling to the electromagnetic Lagrangian. We
Gravitational Redshift Test Using Eccentric Galileo Satellites.
We report on a new test of the gravitational redshift and thus of local position invariance, an integral part of the Einstein equivalence principle, which is the foundation of general relativity and
AEDGE: Atomic Experiment for Dark Matter and Gravity Exploration in Space
We propose in this White Paper a concept for a space experiment using cold atoms to search for ultra-light dark matter, and to detect gravitational waves in the frequency range between the most