Discrete Symmetry Tests In Neutron-induced Compound States

Shimizu, Hirohiko M.; Gudkov, Vladimir; Curole, J.; Harada, Hideo; Hautle, P.; Hino, Masahiro; Hirota, Katsuya; Ichikawa, Go; Ichihara, T.; Ishimoto, S.; Iwata, T.; Kimura, A.; Kitaguchi, Masaaki; Kiyanagi, Yoshiaki; Koga, J.; Mishima, Kenji; Miyachi, Y.; Momose, Takamasa; Morishima, Takahiro; Nagamoto, K.; Okada, Aya; Okudaira, Takuya; Penttilä, S. I.; Plaster, Brad; Sakai, Kenji; Schaper, Danielle; Takada, Shiro; Taketani, Koru; Tong, Xin; Tremsin, Anton S.; Yamagata, Yutaka; Yamamoto, Tomoki; Yamanaka, Nodoka; Yokohashi, M.; Yoshioka, Tamaki

doi:10.22323/1.281.0187

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…For the other applications see Refs. [20,64,65,66,67,68,69,70] in this proceedings and recent reviews [4,5,6]. …”

Section: Fundamental Neutron Physicsmentioning

confidence: 86%

Cold and Ultra-cold Neutrons as Probes of New Physics

Konrad¹,

Abele²

2017

Proceedings of the 26th International Nuclear Physics Conference — PoS(INPC2016)

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Despite the great success of the Standard Model, many key questions in particle physics, astrophysics, and cosmology are unanswered. In particular, more than 95 % of the universe consists of unknown dark matter and dark energy. Today, a major goal of particle physics is to look for evidence of new physics beyond the Standard Model. Collider searches for new physics are well suited to the direct production of new high-mass particles, whereas low-energy precision experiments search for traces that new particles leave in known processes. Direct and indirect evidence of new physics are highly complementary. High-precision experiments with extremely slow, cold and ultra-cold neutrons address some of the unanswered questions, for instance, on the nature of the fundamental forces and underlying symmetries, the origin, evolution, and fate of the universe, or on the nature of the gravitational force at very small distances. For example, the limit on the electric dipole moment of the neutron constrains the CP violating phases, the lifetime of the neutron determines the relative helium abundance in the universe, and neutrons bouncing over a mirror probe dark matter and dark energy. New facilities and technological developments now give window for significant improvement in precision by one to two orders of magnitude. In this paper, we will give an overview of current and planned facilities and experiments, as well as an overview of some of the applications of neutrons to astrophysics, cosmology, and physics beyond the Standard Model.

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“…For the other applications see Refs. [20,64,65,66,67,68,69,70] in this proceedings and recent reviews [4,5,6]. …”

Section: Fundamental Neutron Physicsmentioning

confidence: 86%

Cold and Ultra-cold Neutrons as Probes of New Physics

Konrad¹,

Abele²

2017

Proceedings of the 26th International Nuclear Physics Conference — PoS(INPC2016)

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“…In particular, for heavy nuclei the PVTV effects can be enhanced by factors as large as 10 6 [250,251], see also [252]. In order to exploit this enhancement, some experiments are being planned, such as the NOPTREX experiment at RIKEN [253,254]. Also polarized nucleon-polarized deuteron scattering has been proposed as a way to detect PVTV signals [226,255].…”

Section: Discussionmentioning

confidence: 99%

Parity- and Time-Reversal-Violating Nuclear Forces

et al. 2020

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“…[235]. In order to exploit this enhancement, some experiments are being planned, such as the NOPTREX experiment at RIKEN [236,237]. Also polarized nucleonpolarized deuteron scattering has been proposed as a way to detect PVTV signals [220,238].…”

Section: Discussionmentioning

confidence: 99%

Parity- and time-reversal-violating nuclear forces

de Vries,

Epelbaum,

Girlanda

et al. 2020

Preprint

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Parity-violating and time-reversal conserving (PVTC) and parity-violating and time-reversalviolating (PVTV) forces in nuclei form only a tiny component of the total interaction between nucleons. The study of these tiny forces can nevertheless be of extreme interest because they allow to obtain information on fundamental symmetries using nuclear systems. The PVTC interaction derives from the weak interaction between the quarks inside nucleons and nuclei and the study of PVTC effects opens a window on the quark-quark weak interaction. The PVTV interaction is sensitive to more exotic interactions at the fundamental level, in particular to strong CP violation in the Standard Model Lagrangian, or even to exotic phenomena predicted in various beyond-the-Standard-Model scenarios. The presence of these interactions can be revealed either by studying various asymmetries in polarized scattering of nuclear systems, or by measuring the presence of non-vanishing permanent electric dipole moments of nucleons, nuclei and diamagnetic atoms and molecules. In this contribution, we review the derivation of the nuclear PVTC and PVTV interactions within various frameworks. We focus in particular on the application of chiral effective field theory, which allows for a more strict connection with the fundamental interactions at the quark level. We investigate PVTC and PVTV effects induced by these potential on several few-nucleon observables, such as the longitudinal asymmetry in proton-proton scattering and radiative neutron-proton capture, and the electric dipole moments of the deuteron and the trinucleon system.

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Discrete Symmetry Tests In Neutron-induced Compound States

Abstract: A possibility of new type experimental searches for new physics beyond the standard model is being introduced in the symmetry tests in neutron-induced compound states according to the successful operation of intense pulsed neutron sources. The basis of experiment design is discussed.

Cited by 3 publications

References 4 publications

Cold and Ultra-cold Neutrons as Probes of New Physics

Cold and Ultra-cold Neutrons as Probes of New Physics

Parity- and Time-Reversal-Violating Nuclear Forces

Parity- and time-reversal-violating nuclear forces

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