Probing the short range spin dependent interactions by polarized $$^{3}$$ 3 He atom beams

Yan, Huan; Sun, G. A.; Gong, Jian; Pang, Bo; Wang, Y.; Yang, Yuntao; Zhang, J.; Zhang, Y.

doi:10.1140/epjc/s10052-014-3088-8

Cited by 9 publications

(4 citation statements)

References 29 publications

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“…which is the same as the V-A potential derived in Ref. [11] for a plane plate in which the thickness goes to infinity.…”

Section: Vector-axial-vector Interactionmentioning

confidence: 62%

Searching for New Spin- and Velocity-Dependent Interactions by Spin Relaxation of PolarizedHe3Gas

Yan¹,

Sun²,

Peng³

et al. 2015

Phys. Rev. Lett.

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We have constrained possible new interactions which produce nonrelativistic potentials between polarized neutrons and unpolarized matter proportional to α σ · v where σ is the neutron spin and v is the relative velocity. We use existing data from laboratory measurements on the very long T1 and T2 spin relaxation times of polarized 3 He gas in glass cells. Using the best available measured T2 of polarized 3 He gas atoms as the polarized source and the earth as an unpolarized source, we obtain constraints on two new interactions. We present a new experimental upper bound on possible vector-axial-vector(VV A) type interactions for ranges between 1 ∼ 10 8 m. In combination with previous results, we set the most stringent experiment limits on gV gA ranging from ∼ µm to ∼ 10 8 m. We also report what is to our knowledge the first experimental upper limit on the possible torsion fields induced by the earth on its surface. Dedicated experiments could further improve these bounds by a factor of ∼ 100. Our method of analysis also makes it possible to probe many velocity dependent interactions which depend on the spins of both neutrons and other particles which have never been searched for before experimentally.PACS numbers: 13.88.+e, 13.75. Cs, 14.20.Dh, 14.70.Pw In recent years, various models of new physics beyond the Standard Model have been studied in which new massive particles such as the axion, familon and majoron, etc. were theoretically introduced [1]. New macroscopic interactions meditated by WISPs (weakly-interacting sub-eV particles) have also been theoretically proposed. The interaction ranges of these new forces range from nanometers to astronomical distance scales. The fact that the dark energy density is on the order of (1 meV) 4 corresponding to a length scale of 100 µm also encourages people to search for new physical phenomena around this scale [2]. Various experiments have been performed or proposed recently to search for a subset of these new interactions which could couple to the spin of the neutron/electron. Polarized neutron beams were used in the experiments presented in Refs. [3,4]. Polarized noble gases were used in Refs. [5][6][7][8]. Atomic magnetometers were applied in Refs. [9,10]. Experimental schemes using polarized atom beams have been recently proposed in Ref. [11].The idea that exotic new interactions might be spin/velocity dependent is quite fascinating. For example, the theoretically proposed photinos interact with nuclei only through spin-dependent forces [12]. Ref. [13] analyzed the possible nonrelativistic potentials between spin-1/2 fermions from spin 0 and spin 1 boson exchange and found 16 possible new interactions, 10 of which depend both on the spin states and the relative velocity be- * Corresponding author: hyan@caep.cn tween particles. Torsion, a twisting of spacetime coupled to intrinsic spin, which has been included in many models which extend general relativity [14,15], can also induce spin-velocity dependent interactions between an unpolarized source and the spin. Har...

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“…which is the same as the V-A potential derived in Ref. [11] for a plane plate in which the thickness goes to infinity.…”

Section: Vector-axial-vector Interactionmentioning

confidence: 62%

Searching for New Spin- and Velocity-Dependent Interactions by Spin Relaxation of PolarizedHe3Gas

Yan¹,

Sun²,

Peng³

et al. 2015

Phys. Rev. Lett.

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“…One such possibility is to apply the beam method proposed in Refs. [35,51], using superconducting magnetic shielding to create a zero background field region, then fly the spin-polarized particles such as muon beams through and detect the sidereal variations of the polarization along the direction perpendicular to the Earth's rotation axis. In this way, we could probe the spin-dependent new interactions for particles such as muons, electrons, etc., caused by the Sun.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Using the Sun and the Moon as Source masses and the Earth's Rotation as a Modulation to Search for Exotic Spin-Dependent Interactions at Astronomical Distances

Wu¹,

Zhang²,

Peng³

et al. 2023

Preprint

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“…The bounds on ultralight B − L gauge bosons are discussed in [89]. Constraints on long and short range forces mediated by scalars and vectors are discussed in [90,91]. The dark photon which is another standard dark matter candidate can have a kinetic mixing with the visible photons or couple with the SM particles if they are charged under the new U (1) gauge group.…”

Section: Introductionmentioning

confidence: 99%

Constraints on ultralight axions, vector gauge bosons, and unparticles from geodetic and frame-dragging measurements

Poddar

2022

Eur. Phys. J. C

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The geodetic and frame-dragging effects are the direct consequences of the spacetime curvature near Earth which can be probed from the Gravity probe B (GP-B) satellite. The satellite result matches quite well with Einstein’s general relativistic result. The gyroscope of the satellite which measures the spacetime curvature near Earth contains lots of electrons and nucleons. Ultralight axions, vector gauge bosons, and unparticles can interact with these electrons and nucleons through different spin-dependent and spin-independent operators and change the drift rate of the gyroscope. Some of these ultralight particles can either behave as a long range force between some dark sector or Earth and the gyroscope or they can behave as a background oscillating dark matter fields or both. These ultralight particles can contribute an additional precession of the gyroscopes, limited to be no larger than the uncertainty in the GP-B measurements. Compared with the experimental results, we obtain bounds on different operator couplings.

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Probing the short range spin dependent interactions by polarized $$^{3}$$ 3 He atom beams

Cited by 9 publications

References 29 publications

Searching for New Spin- and Velocity-Dependent Interactions by Spin Relaxation of PolarizedHe3Gas

Searching for New Spin- and Velocity-Dependent Interactions by Spin Relaxation of PolarizedHe3Gas

Using the Sun and the Moon as Source masses and the Earth's Rotation as a Modulation to Search for Exotic Spin-Dependent Interactions at Astronomical Distances

Constraints on ultralight axions, vector gauge bosons, and unparticles from geodetic and frame-dragging measurements

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