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Semi-inclusive deep inelastic electron scattering off polarized 3He is studied in a non-relativistic framework, using a distorted spin-dependent spectral function for 3He to take care of the final state interaction between the observed pion…

We discuss nuclear spin comagnetometers based on ultra-low-field nuclear magnetic resonance in mixtures of miscible solvents, each rich in a different nuclear spin. In one version thereof, Larmor precession of protons and ${\rm ^{19}F}$…

We conducted laboratory searching for the exotic spin- and velocity-dependent new interactions according to the previously proposed experimental scheme. Two $\sim$6Kg heavy source masses are rotationally modulated at a frequency of 20Hz.…

Nuclear Experiment · Physics 2022-08-17 K. Y. Wu , S. Y. Chen , G. A. Sun , S. M. Peng , M. Peng , H. Yan

Searching for new particles beyond the standard model is crucial for understanding several fundamental conundrums in physics and astrophysics. Amongst them, axions or similar hypothetical pseudoscalar bosons would mediate electron-nucleon…

There are numerous recent and ongoing experiments employing a variety of atomic species to search for couplings of atomic spins to exotic fields. In order to meaningfully compare these experimental results, the coupling of the exotic field…

Atomic Physics · Physics 2015-08-06 D. F. Jackson Kimball

The analysis of semi-inclusive deep inelastic electron scattering off polarized $^3$He at finite momentum transfers, aimed at the extraction of the quark transverse-momentum distributions in the neutron, requires the use of a distorted…

Due to the lack of free neutron targets, studies of the structure of the neutron are typically made by scattering electrons from either $^2$H or $^3$He targets. In order to extract useful neutron information from a $^3$He target, one must…

We report on the design and performance of a highly sensitive combined $^3$He/Cs magnetometer for the absolute measurement of magnetic fields. The magnetometer relies on the magnetometric detection of the free spin precession of nuclear…

We present a phenomenological constraint on a pseudovector light boson beyond the Standard Model, which can induce a long-range spin-dependent interaction $\alpha^{\prime\prime}({\bf s}_1\cdot{\bf s}_2)\,{\rm e}^{-\lambda r}/r$. In the…

High Energy Physics - Phenomenology · Physics 2014-11-04 S. G. Karshenboim

In article "Limits on a nucleon-nucleon monopole-dipole (axionlike) P,T-noninvariant interaction from spin relaxation of polarized 3He" Yu. N. Pokotilovski arXiv:0902.1682v2 [nucl-ex] 12 Feb 2009 it was presented new constraints for the…

Nuclear Experiment · Physics 2009-12-31 A. P. Serebrov

In this paper, we discuss a possibility to improve constraints on spin-dependent short-range interactions in the range of 1 - 200 micrometer significantly. For such interactions, our constraints are without competition at the moment. They…

Nuclear Experiment · Physics 2010-03-04 S. Baeßler , V. V. Nesvizhevsky , G. Pignol , K. V. Protasov , A. Yu. Voronin

The determination of the spin distribution functions for the neutron requires an understanding of the changes induced by a nuclear medium. We present the first estimates of the changes induced in the spin-dependent, valence parton…

Nuclear Theory · Physics 2010-03-26 F. M. Steffens , K. Tsushima , A. W. Thomas , K. Saito

We discuss the design and performance of a very sensitive low-field magnetometer based on the detection of free spin precession of gaseous, nuclear polarized 3He or 129Xe samples with a SQUID as magnetic flux detector. The device will be…

Atomic co-magnetometers are widely used in precision measurements searching for spin interactions beyond the Standard Model. We describe a new $^3$He-$^{129}$Xe co-magnetometer probed by Rb atoms and use it to identify two general classes…

Atomic Physics · Physics 2014-10-21 Dong Sheng , Aaron Kabcenell , Michael V. Romalis

High-precision spectroscopy of muonic atoms provides a powerful probe for new short-range interactions predicted by theories beyond the Standard Model (SM). In this work, we derive new constraints on both spin-independent and spin-dependent…

High Energy Physics - Phenomenology · Physics 2025-11-04 J. E. J. Matias , A. S. Lemos , F. Dahia

Angular Distributions for the target spin-dependent observables A$_{0y}$, A$_{xx}$, and A$_{yy}$ have been measured using polarized proton beams at several energies between 2 and 6 MeV and a spin-exchange optical pumping polarized $^3$He…

Nuclear Experiment · Physics 2015-03-13 T. V. Daniels , C. W. Arnold , J. M. Cesaratto , T. B. Clegg , A. H. Couture , H. J. Karwowski , T. Katabuchi

Noise properties of an idealized atomic magnetometer that utilizes spin squeezing induced by a continuous quantum nondemolition measurement are considered. Such a magnetometer measures spin precession of $N$ atomic spins by detecting…

Experimental investigation of nuclear spin effects on the electron spin polarization in singly negatively charged InP quantum dots is reported. Pump-probe photoluminescence measurements of electron spin relaxation in the microsecond…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Bipul Pal , Sergey Yu. Verbin , Ivan V. Ignatiev , Michio Ikezawa , Yasuaki Masumoto

KM3NeT's detection of a muon track produced by a $\sim 220 \, {\rm PeV}$ neutrino provides an opportunity to probe physics at center-of-momentum energies greater than those probed by the Large Hadron Collider or other existing particle…

High Energy Physics - Phenomenology · Physics 2026-04-01 Toni Bertólez-Martínez , Dan Hooper

Ultralight axion-like particles can contribute to the dark matter near the Sun, leading to a distinct, stochastic signature in terrestrial experiments. We search for such particles through their neutron-spin coupling by re-analyzing…

High Energy Physics - Phenomenology · Physics 2023-04-05 Junyi Lee , Mariangela Lisanti , William A. Terrano , Michael Romalis