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Related papers: Plans for a Neutron EDM Experiment at SNS

200 papers

The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment designed to make precision measurements in the world's most powerful neutrino beam. Neutrinos are measured at two detector…

High Energy Physics - Experiment · Physics 2025-01-28 Ciaran Hasnip

The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory is a pulsed source of neutrons and, as a byproduct of this operation, an intense source of pulsed neutrinos via stopped-pion decay. The COHERENT collaboration uses this…

New generation of neutron decay experiments, which can be done with high accuracy at new Spallation Neutron Sources, are very important for solution of current problems of fundamental physics and for tests of the Standard Model. The open…

Nuclear Theory · Physics 2016-09-08 Vladimir Gudkov

We examine the cancellation mechanism between the different contributions to the electric dipole moment of the neutron in a model with dilaton-dominated SUSY breaking. We find these accidental cancellations occur at few points in parameter…

High Energy Physics - Phenomenology · Physics 2011-05-12 S. M. Barr , Shaaban Khalil

We investigate the muon anomalous magnetic dipole moment (MDM), the muon electric dipole moment (EDM) and the lepton-flavour-violating decays of the $\tau-$lepton, $\tau \to \mu \gamma$ and $\tau\to 3\mu$, in the CP-violating Minimal…

High Energy Physics - Phenomenology · Physics 2009-11-10 Tai-Fu Feng , Tao Huang , Xue-Qian Li , Xin-Min Zhang , Shu-Min Zhao

The search for particle electric dipole moments (edm) is one of the best places to look for physics beyond the standard model because the size of time reversal violation predicted by the standard model is incompatible with present ideas…

Nuclear Experiment · Physics 2009-11-10 S. K. Lamoreaux , R. Golub

For the neutron to have an electric dipole moment (EDM), the theory of nature must have T, or equivalently CP, violation. Neutron EDM is a very good probe of novel CP violation in beyond the standard model physics. To leverage the…

High Energy Physics - Lattice · Physics 2018-04-18 Boram Yoon , Tanmoy Bhattacharya , Rajan Gupta

The Storage Ring EDM Collaboration is completing a comprehensive proposal to DOE for a sensitive proton EDM experiment at the 10-29e\cdot cm level. This involves building an electric ring of radius R~40 m, with bending provided by stainless…

Accelerator Physics · Physics 2019-08-13 Yannis K. Semertzidis

We propose an original test of Lorentz invariance in the interaction between a particle spin and an electromagnetic field and report on a first measurement using ultracold neutrons. We used a high sensitivity neutron electric dipole moment…

In many models of CP violation, the electric dipole moment (EDM) of a heavy charged or neutral lepton could be very large. We present an explicit model in which a heavy neutrino EDM can be as large as $10^{-16}$ e-cm, or even a factor of…

High Energy Physics - Phenomenology · Physics 2009-11-07 Marc Sher , Shuquan Nie

A post-acceleration system based on the accelerators at CSNS (China Spallation Neutron Source) is proposed to build a super-beam facility for neutrino physics. Two post-acceleration schemes, one using superconducting dipole magnets in the…

Accelerator Physics · Physics 2015-06-12 Yang Wu , Jingyu Tang

We discuss the proposal of Freedman, Ringo, and Dombeck to search for the neutron electric dipole moment use of the acceleration of neutrons in an inhomogeneous electric field followed by amplification of the resulting displacement by…

Nuclear Experiment · Physics 2009-10-31 S. K. Lamoreaux , R. Golub

We examine the prospects for discovering new physics through muon dipole moments. The current deviation in $g_{\mu}-2$ may be due entirely to the muon's {\em electric} dipole moment. We note that the precession frequency in the proposed BNL…

High Energy Physics - Phenomenology · Physics 2009-10-09 Jonathan L. Feng , Konstantin T. Matchev , Yael Shadmi

The Front End of the Spallation Neutron Source (SNS) extends from the Ion Source (IS), through a 65 keV LEBT, a 402.5 MHz RFQ, a 2.5 MeV MEBT, ending at the entrance to the DTL. The diagnostics suite in this space includes stripline beam…

Accelerator Physics · Physics 2010-11-15 L. Doolittle , T. Goulding , D. Oshatz , A. Ratti , J. Staples

The Ra EDM experiment uses a pair of high voltage electrodes to search for the atomic electric dipole moment of $^{225}$Ra. We use identical, plane-parallel electrodes with a primary high gradient surface of 200 mm$^2$ to generate…

A search for a non-zero Electric Dipole Moment (EDM) of particles, which is a clear signal of a violation of CP symmetry, is one of the unique ways to discover physics beyond the Standard Model. In this paper, we discuss a method for…

High Energy Physics - Phenomenology · Physics 2025-08-07 R. T. Ovsiannikov , A. Yu. Korchin , E. Kou

This is a preliminary version of a formal proposal by the 3M collaboration to construct a megaton, modular, multipurpose (3M) neutrino detector for a program of experiments in neutrino physics. The detector components will be located in…

High Energy Physics - Experiment · Physics 2007-05-23 M. V. Diwan , R. L. Hahn , W. Marciano , B. Viren , R. Svoboda , W. Frati , K. Lande , A. K. Mann , R. Van Berg , J. R. Klein

We carry out a feasibility study toward a lattice QCD calculation of the neutron electric dipole moment (NEDM) in the presence of the $\theta$ term using two different approaches. In the first method, we calculate the CP-odd electromagnetic…

High Energy Physics - Lattice · Physics 2009-04-25 Eigo Shintani , S. Aoki , N. Ishizuka , K. Kanaya , Y. Kikukawa , Y. Kuramashi , M. Okawa , A. Ukawa , T. Yoshié

We study the constraints on the CP-violating soft-breaking phases in the minimal supersymmetric standard model using the limits on the chromoelectric dipole moment of the strange quark extracted from the neutron EDM experiment. Our…

High Energy Physics - Phenomenology · Physics 2016-09-06 C. Hamzaoui , M. Pospelov , R. Roiban