A Precision Measurement of the Muon Decay Parameters $\rho$ and $\delta$ (2008)
Bayes, R., Bueno, J., Davydov, Yu. I., Depommier, P., Faszer, W., ...
The TWIST collaboration has performed new measurements of two of the parameters that describe muon decay: $\rho$, which governs the shape of the overall momentum spectrum, and $\delta$, which governs...
Search for Free Decay of Negative Pions in Water and Light Materials (2006)
Numao, T., Davydov, Yu. I., Poutissou, J-M., Awes, T. C., Cianciolo, V., Berridge, S., ...
We report on a search for the free decay component of pi- stopped in water and light materials. A non-zero value of this would be an indication of anomalous nu_e contamination to the nu_e and...
Measurement of P_{mu}xi in Polarized Muon Decay (2006)
Jamieson, TWIST Collaboration: B., Bayes, R., Davydov, Yu. I., Depommier, P., Doornbos, J., Faszer, W., ...
The quantity P_{mu}^{pi}xi, where xi is one of the muon decay parameters and $P_{\mu}^{\pi}$ is the degree of muon polarization in pion decay, has been measured. The value P_{mu}^{pi}xi = 1.0003 +-...
Time expansion chamber system for characterization of TWIST low energy muon beams (2006)
Hu, J., Sheffer, G., Davydov, Yu. I., Gill, D. R., Gumplinger, P., Henderson, R. S., ...
A low mass time expansion chamber (TEC) has been developed to measure distributions of position and angle of the TRIUMF low energy surface muon beam used for the TWIST experiment. The experiment is a...
Study of a self quenching streamer mode in pure gases of DME and isobutane (2005)
A self quenching streamer (SQS), or limited streamer mode has been studied in single wire chambers with cross-sections 12x12 mm and wire diameters 15, 25 and 50 microns. Chambers were filled with...
Gas gain on single wire chambers filled with pure isobutane at low pressure (2004)
Davydov, Yu. I., Openshaw, R., Selivanov, V., Sheffer, G.
The gas gain of single-wire chambers filled with isobutane, with cell cross-section 12x12 mm and wire diameters of 15, 25, 50 and 100 $\mu$m, has been measured at pressures ranging 12-92 Torr....
Precision planar drift chambers and cradle for the TWIST muon decay spectrometer (2004)
Henderson, R. S., Davydov, Yu. I., Faszer, W., Koetke, D. D., Miasoedov, L. V., Openshaw, R., ...
To measure the muon decay parameters with high accuracy, we require an array of precision drift detector layers whose relative position is known with very high accuracy. This article describes the...
On the first Townsend coefficient at high electric field (2004)
Based on the simplified approach it is shown and experimentally confirmed that gas gain in wire chambers at very low pressure becomes higher on thicker wires at the same applied high voltage. This is...
Study of K-meson decays with the HYPERON-2 spectrometer: proposal of the experiment (1998)
Batusov, V Yu, Budagov, Yu A, Chirikov-Zorin, I E, Davydov, Yu I, Dzhelepov, V P, Flyagin, V B, ...
CHANGES IN THE STRUCTURE OF GRAY AND WHITE CAST IRON IN A REGION AFFECTED BY LASER EMISSION, (1998)
Davydov,Yu. I., Zhukov,A. A., Kokora,A. N., Krishtal,M. S.
During the action of a laser pulse on gray cast iron the following specific effects appear: the liquid phase on the metal surface shrinks into individual drops; the front of the melted zone makes...