The Discovery of the Parity Violation in Weak Interactions and Its Recent Developments

Wu, Chenye

doi:10.1007/978-4-431-77056-5_4

Cited by 6 publications

(6 citation statements)

References 13 publications

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“…60 Co→ 60 Ni + e − + anti-ν e using β − -decay of radioisotope 60 Co. Likewise, a parityviolation in β + -decay process that the 58 Co→ 58 Fe + e + + ν e was confirmed, while positron and anti-ν e were antimatters of electron and ν e , respectively [69][70][71][72][73][74][75][76]. The parity-violation relies on a weak charged current of the radioisotopes.…”

Section: Static Magnetic Field With Polarized Lightmentioning

confidence: 97%

“…Akabori conjectured that the origin of all L-selectivity in amino acids of proteins results from the by-chance mechanism because there is no chirality in Kaolinite. The hypothesis, followed by experiments, were reported just before the groundbreaking fever in 1956-1958 that the parity in the β-decay process of 60 Co is violated, though a left-right equality of enantiomers was a concrete common sense in chemistry in those days [69][70][71][72][73][74][75][76].…”

Section: Static Magnetic Fieldmentioning

confidence: 99%

“…Since the discovery in 1956-1957 of the parity-violating β − -and β + -decay processes [69][70][71][72][73][74][75][76], people assumed that the handed weak neutral current is responsible for deterministic factor of L-amino acid and D-ribose [3,6,105]. Parity-violation hypothesis in atoms, so-called atomic parity-violation, is established theoretically and experimentally, based on absorption and photoluminescence spectroscopy of collision-free atomic vapors [106][107][108][109][110][111][112].…”

Section: Handed Weak Neutral Current Mediated By Z 0 Bosonmentioning

confidence: 99%

“…The author conjectured at that time that handed spiral from the colloids in the ultracold and hot conditions is a model of the cometary coacervates hypothesis in comets [123]. Three chiral physical sources are possible to connect to the spiral rings because the β − -decay process from 60 Co radiates l-hand spinning β-electron, r-hand γ-ray (high-energy circularly polarized light), and l-hand anti-neutrino simultaneously from the source [69][70][71][72][73][74][75][76].…”

Section: Perspectives-colloidsmentioning

confidence: 99%

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Resonance in Chirogenesis and Photochirogenesis: Colloidal Polymers Meet Chiral Optofluidics

Fujiki

2021

Symmetry

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Metastable colloids made of crystalline and/or non-crystalline matters render abilities of photonic resonators susceptible to chiral chemical and circularly polarized light sources. By assuming that μm-size colloids and co-colloids consisting of π- and/or σ-conjugated polymers dispersed into an optofluidic medium are artificial models of open-flow, non-equilibrium coacervates, we showcase experimentally resonance effects in chirogenesis and photochirogenesis, revealed by gigantic boosted chiroptical signals as circular dichroism (CD), optical rotation dispersion, circularly polarized luminescence (CPL), and CPL excitation (CPLE) spectral datasets. The resonance in chirogenesis occurs at very specific refractive indices (RIs) of the surrounding medium. The chirogenesis is susceptible to the nature of the optically active optofluidic medium. Moreover, upon an excitation-wavelength-dependent circularly polarized (CP) light source, a fully controlled absolute photochirogenesis, which includes all chiroptical generation, inversion, erase, switching, and short-/long-lived memories, is possible when the colloidal non-photochromic and photochromic polymers are dispersed in an achiral optofluidic medium with a tuned RI. The hand of the CP light source is not a determining factor for the product chirality. These results are associated with my experience concerning amphiphilic polymerizable colloids, in which, four decades ago, allowed proposing a perspective that colloids are connectable to light, polymers, helix, coacervates, and panspermia hypotheses, nuclear physics, biology, radioisotopes, homochirality question, first life, and cosmology.

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Section: Static Magnetic Field With Polarized Lightmentioning

confidence: 97%

Section: Static Magnetic Fieldmentioning

confidence: 99%

Section: Handed Weak Neutral Current Mediated By Z 0 Bosonmentioning

confidence: 99%

Section: Perspectives-colloidsmentioning

confidence: 99%

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Resonance in Chirogenesis and Photochirogenesis: Colloidal Polymers Meet Chiral Optofluidics

Fujiki

2021

Symmetry

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“…The most important concept of symmetry is that space and time are isotropic and homogeneous, that is, all points and all directions in space are equivalent so that there is no real distinction of absolute location in time and space [60]. The symmetry of a system is an observed or intrinsic feature that remains unchanged (invariant) under some type of transformation [61].…”

Section: Symmetrymentioning

confidence: 99%

Self-Direction in Physics Graduate Education: Insights for STEM from David J. Rowe’s Career-Long Methods

Nash

2022

Challenges

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The ability to self-direct a research program determines graduate degree completion. Yet, research on incompletion of science, technology, engineering, and mathematics (STEM) graduate programs assumes students’ present level of self-direction adequate and neglects to recognize a lack of self-directed learning (SDL) as key. This essay explores SDL for STEM, presenting the work of theoretical nuclear physicist David J. Rowe as a key example of applying a process of SDL in practice. Rowe focused on this challenge of physics graduate education by promoting SDL through the type of research flow that has been found to bring the greatest satisfaction to researchers regarding their insights. Strategies he explored involved his space, time, open mindedness and theoretical contributions with students and in collaboration with colleagues. A self-directed learner himself, Rowe developed methods of mentoring for encouraging physics graduate students to recognize symmetry as valuable in identifying solutions to problems quickly—helping students take the lead in finding insightful resolutions to complex, multidimensional, mathematical physics uncertainties. These strategies for supporting SDL in this context are examined here, with the use of narrative research to interpret the texts and conversations exchanged with the author. The process of SDL developed by Rowe is presented with recommendations on how Rowe’s methods may be modeled to improve self-direction in STEM graduate education more widely.

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The Discovery of Parity Nonconservation

Franklin

Laymon

2020

Once Can Be Enough

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The Discovery of the Parity Violation in Weak Interactions and Its Recent Developments

Cited by 6 publications

References 13 publications

Resonance in Chirogenesis and Photochirogenesis: Colloidal Polymers Meet Chiral Optofluidics

Resonance in Chirogenesis and Photochirogenesis: Colloidal Polymers Meet Chiral Optofluidics

Self-Direction in Physics Graduate Education: Insights for STEM from David J. Rowe’s Career-Long Methods

The Discovery of Parity Nonconservation

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