0000000000338208

AUTHOR

D. Ramírez García

showing 2 related works from this author

Constraining the spin-dependent WIMP-nucleon cross sections with XENON1T

2019

We report the first experimental results on spin-dependent elastic weakly interacting massive particle (WIMP) nucleon scattering from the XENON1T dark matter search experiment. The analysis uses the full ton year exposure of XENON1T to constrain the spin-dependent proton-only and neutron-only cases. No significant signal excess is observed, and a profile likelihood ratio analysis is used to set exclusion limits on the WIMP-nucleon interactions. This includes the most stringent constraint to date on the WIMP-neutron cross section, with a minimum of 6.3 × 10−42 cm2 at 30 GeV/c2 and 90% confidence level. The results are compared with those from collider searches and used to exclude new paramet…

WIMP nucleon: interactionWIMP nucleon: scatteringParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)IsoscalarDark matterNuclear TheoryMassive particleGeneral Physics and AstronomyFOS: Physical sciencesParameter spacedark matter: direct detectionGravitation and Astrophysicsspin: dependence01 natural scienceslaw.inventionHigh Energy Physics - Phenomenology (hep-ph)WIMPlawisoscalar0103 physical sciencesS046DM1mediation010306 general physicsColliderPseudovectorPhysicsS030DN2S030DN1S030DP3S030DN3S030DP2S030DP1WIMP nucleon: cross sectionaxial-vectorHigh Energy Physics - PhenomenologyWIMPs Spin Dependent Cross Sections Neutron Cross Sections Likelihood methoddark matter: scattering[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::ExperimentNucleon[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Astrophysics - Cosmology and Nongalactic Astrophysicsexperimental results
researchProduct

First Results on the Scalar WIMP-Pion Coupling, Using the XENON1T Experiment

2018

We present first results on the scalar coupling of weakly interacting massive particles (WIMPs) to pions from 1 t yr of exposure with the XENON1T experiment. This interaction is generated when the WIMP couples to a virtual pion exchanged between the nucleons in a nucleus. In contrast to most nonrelativistic operators, these pion-exchange currents can be coherently enhanced by the total number of nucleons and therefore may dominate in scenarios where spin-independent WIMP-nucleon interactions are suppressed. Moreover, for natural values of the couplings, they dominate over the spin-dependent channel due to their coherence in the nucleus. Using the signal model of this new WIMP-pion channel, …

Nuclear TheoryPhysics::Instrumentation and DetectorsNuclear TheoryGeneral Physics and Astronomy01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)WIMPPions[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear ExperimentS030UDMPhysicsStarke Wechselwirkung und exotische Kerne – Abteilung BlaumAstrophysics::Instrumentation and Methods for AstrophysicsnucleonsuppressionHigh Energy Physics - PhenomenologyWeakly interacting massive particlesmedicine.anatomical_structureWeakly interacting massive particlesNucleonCoherence (physics)Astrophysics - Cosmology and Nongalactic AstrophysicsWIMP nucleon: interactionParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]FOS: Physical sciencesWIMP: massspin: dependenceGravitation and Astrophysicsoperator: nonrelativisticDark matter Particle dark matter Pions Weakly interacting massive particles Dark matter detectorsNuclear Theory (nucl-th)PionParticle dark matter0103 physical sciencesmedicineDark mattercross section: upper limit010306 general physicsCouplingDark matter detectorsnucleusScalar (physics)coherenceDark Matter WIMP-Pion coupling Xenon Direct seartch[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::Experiment[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Nucleus
researchProduct