J.-M. Poutissou
TRIUMF
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Publication
Featured researches published by J.-M. Poutissou.
Physical Review Letters | 2001
Stephen L. Adler; S. H. Kettell; A. Konaka; James MacDonald; M. M. Ito; J. S. Haggerty; C. Witzig; Shigeki Sugimoto; Y. Kuno; L. S. Littenberg; S. Ng; P. Kitching; Takao Shinkawa; P. C. Bergbusch; J. S. Frank; C. Ng; M. Miyajima; T. Shimoyama; V. Jain; Y. Yoshimura; R. C. Strand; J. R. Stone; Y. Tamagawa; M. V. Diwan; J.-M. Poutissou; M. Kuriki; Andrew O. Bazarko; P. D. Meyers; J. Hu; Tadashi Sato
Additional evidence for the rare kaon decay K+ to pi+ neutrino-antineutrino has been found in a new data set with comparable sensitivity to the previously reported result. One new event was observed in the pion momentum region examined, 211<P<229 MeV/c, bringing the total for the combined data set to two. Including all data taken, the backgrounds were estimated to contribute 0.15 pm 0.05 events. The branching ratio is B=1.57^{+1.75}_{-0.82} 10^{-10}.
Physical Review Letters | 2002
Stephen L. Adler; Andrew O. Bazarko; P. C. Bergbusch; E. W. Blackmore; D. A. Bryman; Sheng Hung Chen; I-H. Chiang; M. V. Diwan; J. S. Frank; J. S. Haggerty; J. Hu; T. Inagaki; M. M. Ito; V. Jain; S. Kabe; S. H. Kettell; P. Kitching; Mutsuo Kobayashi; T. K. Komatsubara; A. Konaka; Y. Kuno; M. Kuriki; K. Li; L. S. Littenberg; James MacDonald; P. D. Meyers; J. Mildenberger; M. Miyajima; N. Muramatsu; Tomoyuki Nakano
Additional evidence for the rare kaon decay K+ to pi+ neutrino-antineutrino has been found in a new data set with comparable sensitivity to the previously reported result. One new event was observed in the pion momentum region examined, 211<P<229 MeV/c, bringing the total for the combined data set to two. Including all data taken, the backgrounds were estimated to contribute 0.15 pm 0.05 events. The branching ratio is B=1.57^{+1.75}_{-0.82} 10^{-10}.
Physical Review Letters | 1997
Stephen L. Adler; A. Stevens; S. H. Kettell; A. Konaka; James MacDonald; J. S. Haggerty; C. Witzig; S. Sugimoto; Y. Kuno; A. J. S. Smith; L. S. Littenberg; D. A. Bryman; P. Kitching; T. Shinkawa; Masato Aoki; M. M. Ito; J. S. Frank; R. Soluk; C. Ng; Andre Spence Turcot; F. C. Shoemaker; Y. Yoshimura; Y. Kishi; R. C. Strand; J.R. Stone; Robert McPherson; M. V. Diwan; T. F. Kycia; J.-M. Poutissou; M. Kuriki
An event consistent with the signature expected for the rare kaon decay K+ --> pi+ nu anti-nu has been observed. In the pion momentum region examined, 211 pi+ nu anti-nu, the branching ratio is (4.2 +9.7/-3.5) x E-10.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2010
P.-A. Amaudruz; M. Barbi; D. Bishop; N. Braam; D. G. Brook-Roberge; S. Giffin; S. Gomi; P. Gumplinger; K. Hamano; N. C. Hastings; S. Hastings; R.L. Helmer; R. Henderson; K. Ieki; B. Jamieson; I. Kato; N. Khan; J. Kim; B. Kirby; P. Kitching; A. Konaka; M. Lenckowski; C. Licciardi; T. Lindner; K. Mahn; E. L. Mathie; C. Metelko; C.A. Miller; A. Minamino; K. Mizouchi
T2K is a long-baseline neutrino oscillation experiment searching for νe appearance in a νμ beam. The beam is produced at the J-PARC accelerator complex in Tokai, Japan, and the neutrinos are detected by the SuperKamiokande detector located 295 km away in Kamioka. A suite of near detectors (ND280) located 280 m downstream of the production target is used to characterize the components of the beam before they have had a chance to oscillate and to better understand various neutrino interactions on several nuclei. This paper describes the design and construction of two massive fine-grained detectors (FGDs) that serve as active targets in the ND280 tracker. One FGD is composed solely of scintillator bars while the other is partly scintillator and partly water. Each element of the FGDs is described, including the wavelength shifting fiber and Multi-Pixel Photon Counter used to collect the light signals, the readout electronics, and the calibration system. Initial tests and in situ results of the FGDs’ performance are also presented.
Physical Review Letters | 1996
G. Jonkmans; S. Ahmad; D.S. Armstrong; G. Azuelos; W. Bertl; M. Blecher; C. Q. Chen; P. Depommier; B. Doyle; T. von Egidy; T. P. Gorringe; P. Gumplinger; M. Hasinoff; D. Healey; A. J. Larabee; J. A. Macdonald; S.C. McDonald; M. Munro; J.-M. Poutissou; R. Poutissou; B. C. Robertson; D. G. Sample; E. Saettler; C. Sigler; Geoffrey Taylor; D. H. Wright; N. S. Zhang
Next to the hydrogen atom, the µ − p system is the most fundamental lepton-hadron system; therefore it can be used to test and extend our basic knowledge of the weak semi-leptonic interaction between leptons and quarks. Radiative muon capture (RMC) is much more sensitive than ordinary muon capture (OMC) to the induced pseudoscalar coupling constant of the weak semi-leptonic current because of the much larger range of momentum transfers which can occur in RMC. A status report on TRIUMF E452, Radiative Muon Capture on Hydrogen, which is anticipating a 10% measurement of this coupling constant, is presented.
Physical Review Letters | 1997
P. Kitching; Tomoyuki Nakano; M. Rozon; R. Soluk; Stephen L. Adler; M. S. Atiya; I-H. Chiang; J. S. Frank; J. S. Haggerty; T. F. Kycia; K. K. Li; L. S. Littenberg; A. Sambamurti; A. Stevens; R. C. Strand; C. Witzig; W. C. Louis; D. S. Akerib; M. Ardebili; M. R. Convery; M. M. Ito; D. Marlow; Robert McPherson; P. D. Meyers; M. Selen; F. C. Shoemaker; A. J. S. Smith; E. W. Blackmore; D. A. Bryman; L. Felawka
The first observation of the decay K + ! � + is reported. A total of 31 events was observed with an estimated background of 5.1±3.3 events in the � + momentum range from 100 MeV/c to 180 MeV/c. The corresponding partial branching ratio, B(K + ! � + , 100 MeV/c < P�+ < 180 MeV/c), is (6.0±1.5{stat}±0.7{sys})×10 7 . No K + ! � + decay was observed in the � + momentum region greater than 215 MeV/c. The observed � + momentum spectrum is compared with the predictions of chiral perturbation theory.
Nuclear Instruments and Methods in Physics Research | 1984
C. K. Hargrove; H. Mes; A. Bennett; D. A. Bryman; M. Hasinoff; J. A. Macdonald; J.-M. Poutissou; T. Numao; J. Spuller; G. Azuelos; R. Poutissou; M. Blecher; K. Gotow; A.L. Carter
Abstract The spatial resolution of the time projection chamber at TRIUMF has been investigated. The best resolution, σ ⋍ 200 μ m , occurs at the minimum drift length and for an optimum track to anode crossing angle determined by the magnetic field. The resolution worsens for tracks crossing at larger or smaller angles and for longer drift lengths. The observed resolution is quantitatively reproduced by considering the diffusion of the drifting electrons, the track to anode crossing angle, E × B effects near the anode wire and the discrete nature of the ionization process.
Physical Review D | 2004
Stephen L. Adler; Masato Aoki; M. Ardebili; M. S. Atiya; A. O. Bazarko; P. C. Bergbusch; B. Bhuyan; E. W. Blackmore; D. A. Bryman; I-H. Chiang; M. R. Convery; M. V. Diwan; J. S. Frank; J. S. Haggerty; T. Inagaki; M. M. Ito; V. Jain; D. E. Jaffe; S. Kabe; M. Kazumori; S. H. Kettell; P. Kitching; M. Kobayashi; T. K. Komatsubara; A. Konaka; Y. Kuno; M. Kuriki; T. F. Kycia; K. K. Li; L. S. Littenberg
We report the results of a search for the decay
Physical Review Letters | 1997
Stephen L. Adler; Atiya; I-H. Chiang; J. S. Frank; J. S. Haggerty; T. F. Kycia; K. K. Li; L. S. Littenberg; A. Sambamurti; A. Stevens; R. C. Strand; C. Witzig; W. C. Louis; D. S. Akerib; M. Ardebili; M. R. Convery; M. M. Ito; D. Marlow; Robert McPherson; P. D. Meyers; Selen; F. C. Shoemaker; A. J. S. Smith; E. W. Blackmore; D. A. Bryman; L. Felawka; A. Konaka; Y. Kuno; James MacDonald; T. Numao
K^+ \to \pi^+ \nu \bar \nu
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1992
M. S. Atiya; I-H. Chiang; J.S. Frank; E. Garber; J. S. Haggerty; M. M. Ito; T.F. Kycia; K.K. Li; L. S. Littenberg; C. Ng; I. Polk; R. Rosenka; A.K. Sambamurti; A. Stevens; R.C. Strand; C. Zein; D. S. Akerib; H. Edwards; W.C. Louis; Daniel Marlow; P. D. Meyers; M.A. Selen; F. C. Shoemaker; A. J. S. Smith; S. Ahmad; Ewart W. Blackmore; D. A. Bryman; J.V. Cresswell; L. Felawka; N. Khan
in the kinematic region with