# σ± lifetimes and longitudinal acceleration

@article{Roos1980LA, title={$\sigma$± lifetimes and longitudinal acceleration}, author={Charles E. Roos and John Michael Marraffino and Steve Reucroft and Joe William Waters and Michael S. Webster and E. G. H. Williams and A. Manz and Ronald Dean Settles and Gy. Wolf}, journal={Nature}, year={1980}, volume={286}, pages={244-245} }

The interactions of 420—500 Me V/c K− in the 11T hydrogen bubble chamber HYBUC have been used to produce a sample of 120,000 σ± decays in flight1,2. We describe here how these decays were used to investigate the effects of longitudinal accelerations between 0.5 and 5.0 × 1015g on particle lifetimes. Any observed effect of acceleration on lifetime would indicate that the Lorentz transformation and/or the dynamics of particle decay is sensitive to acceleration. These data suggest that…

## 6 Citations

Acceleration effects on atomic clocks

- Physics
- 2014

We consider a free massive particle inside a box that is dragged by Rindler observers. Admitting that the particle obeys the Klein–Gordon equation, we find the frequencies of the stationary states of…

Regularities in the transformation of the oscillating decay rate in moving unstable quantum systems

- PhysicsThe European Physical Journal D
- 2019

Abstract
Decay laws of unstable quantum systems, which move with constant linear momentum in the laboratory reference frame and exhibit oscillating decay rate, are analyzed over intermediate times.…

Moving Unstable Particles and Special Relativity

- Physics
- 2018

In Poincare-Wigner-Dirac theory of relativistic interactions, boosts are dynamical. This means that, just like time translations, boost transformations have a nontrivial effect on internal variables…

Relativistic Quantum Dynamics: A non-traditional perspective on space, time, particles, fields, and action-at-a-distance

- Physics
- 2005

This book is an attempt to build a consistent relativistic quantum theory of interacting particles. In the first part of the book "Quantum electrodynamics" we follow rather traditional approach to…

Transformation of intermediate times in the decays of moving unstable quantum systems via the exponential modes

- PhysicsJournal of Physics A: Mathematical and Theoretical
- 2019

The transformation of canonical decay laws of moving unstable quantum systems is derived from the basic principles of quantum theory and special relativity by approximating, over intermediate times,…

## References

SHOWING 1-10 OF 11 REFERENCES

Measurements of relativistic time dilatation for positive and negative muons in a circular orbit

- PhysicsNature
- 1977

The lifetimes of both positive and negative relativistic (γ = 29.33) muons have been measured in the CERN Muon Storage Ring with the results τ+ = 64.419 (58) µs, τ− = 64.368 (29) µs The value for…

The interaction and decay of K−-mesons in photographic emulsion

- Physics
- 1960

SummaryThis paper presents Part III of the series on the interaction of K−-mesons in photographic emulsions contributed by the European K-collaboration. The mean free path for K−-interaction in…

Hyperon bubble chamber (HYBUC) measurement of the Σ + magnetic moment

- Physics
- 1979

We report on the final result of a precision measurement of the ${\ensuremath{\Sigma}}^{+}$ magnetic moment using the hyperon bubble chamber (HYBUC). HYBUC is a hydrogen bubble chamber with an 11.5-T…

Lifetimes, branching ratios, and asymmetries in Σ-hyperon decays

- Physics
- 1960

SummaryΣ-hyperons produced by the capture of K−-mesons in nuclear emulsion have been studied. The mean lifetime of the Σ+-hyperons which decay via the proton and π+-meson modes has been measured. For…

Interactions of 1.15 GeV/c K−-mesons in emulsion — II

- Physics
- 1961

SummaryIn the present paper we report some results on the interactions of high energy K−-mesons in emulsion. The results concern the energy spectrum and angular distribution of the re-emitted K−, the…

Decay Measurements in Emulsion on Particles of Negative Strangeness

- Materials Science
- 1961

We report the results of our program of measurement on decay processes of ${K}^{\ensuremath{-}}$ mesons, $\ensuremath{\Lambda}$ hyperons, and charged $\ensuremath{\Sigma}$ hyperons. Experimental and…