Search Results - "Perroud, J P"

Search for CP violation in charged-Ξ and Λ hyperon decays by HOLMSTROM, T, LEROS, N, FELIX, J, FU, Y, GIDAL, G, GU, P, GUSTAFSON, H. R, HO, C, HUANG, M, JAMES, C, JENKINS, C. M, JONES, T, BURNSTEIN, R. A, KAPLAN, D. M, LEDERMAN, L. M, LONGO, M. J, LOPEZ, F, LU, L. C, LUEBKE, W, LUK, K. B, NELSON, K. S, PARK, H. K, PERROUD, J.-P, CHAKRAVORTY, A, RAJARAM, D, RUBIN, H. A, TENG, P. K, VOLK, J, WHITE, C. G, WHITE, S. L, ZYLA, P, CHAN, A, CHEN, Y. C, CHOONG, W. S, CLARK, K, DUKES, E. C, DURANDET, C

“…We have compared the p and p angular distributions in 117 x 10(6) Xi- -->Lambdapi- -->ppi-pi- and 41 x 10(6) Xi+ -->Lambda pi+ -->p pi+pi+ decays using a…”
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Evidence for the decay Σ+ → pμ+μ by PARK, H. K, BURNSTEIN, R. A, GIDAL, G, GUSTAFSON, H. R, HOLMSTROM, T, HUANG, M, JAMES, C, JENKINS, C. M, JONES, T, KAPLAN, D. M, LEDERMAN, L. M, LEROS, N, CHAKRAVORTY, A, LONGO, M. J, LOPEZ, F, LU, L. C, LUEBKE, W, LUK, K. B, NELSON, K. S, PERROUD, J.-P, RAJARAM, D, RUBIN, H. A, VOLK, J, CHEN, Y. C, WHITE, C. G, WHITE, S. L, ZYLA, P, CHOONG, W. S, CLARK, K, DUKES, E. C, DURANDET, C, FELIX, J, FU, Y

“…We report the first evidence for the decay {Sigma}{sup +} {yields} p{mu}{sup +}{mu}{sup -} from data taken by the HyperCP (E871) experiment at Fermilab. Based…”
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High statistics search for the θ + ( 1.54 ) pentaquark state by Longo, M. J., Burnstein, R. A., Chakravorty, A., Chen, Y. C., Choong, W. S., Clark, K., Dukes, E. C., Durandet, C., Felix, J., Fu, Y., Gidal, G., Gustafson, H. R., Holmstrom, T., Huang, M., James, C., Jenkins, C. M., Jones, T., Kaplan, D. M., Lederman, L. M., Leros, N., Lopez, F., Lu, L. C., Luebke, W., Luk, K. B., Nelson, K. S., Park, H. K., Perroud, J.-P., Rajaram, D., Rubin, H. A., Volk, J., White, C. G., White, S., Zyla, P.

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Spatial resolution in Micromegas detectors by Derré, J., Giomataris, Y., Zaccone, H., Bay, A., Perroud, J.-P., Ronga, F.

“…The performance of a telescope of Micromegas detectors has been studied in a pion beam at the CERN PS. With a gas filling of CF 4 and 20% isobutane and with a…”
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Search for ΔS = 2 nonleptonic hyperon decays by WHITE, C. G, BURNSTEIN, R. A, GIDAL, G, GU, P, GUSTAFSON, H. R, HO, C, HOLMSTROM, T, HUANG, M, JAMES, C, JENKINS, C. M, KAPLAN, D. M, LEDERMAN, L. M, CHAKRAVORTY, A, LEROS, N, LONGO, M. J, LOPEZ, F, LU, L. C, LUEBKE, W, LUK, K. B, NELSON, K. S, PARK, H. K, PERROUD, J.-P, RAJARAM, D, CHAN, A, RUBIN, H. A, TENG, P. K, VOLK, J, WHITE, S. L, ZYLA, P, CHEN, Y. C, CHOONG, W. S, CLARK, K, DUKES, E. C, DURANDET, C, FELIX, J

“…A sensitive search for the rare decays {Omega}{sup -} {yields} {Lambda}{pi}{sup -} and {Xi}{sup 0} {yields} p{pi}{sup -} has been performed using data from the…”
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HyperCP: A high-rate spectrometer for the study of charged hyperon and kaon decays by Burnstein, R.A., Chakravorty, A., Chan, A., Chen, Y.C., Choong, W.-S., Clark, K., Dukes, E.C., Durandet, C., Felix, J., Fuzesy, R., Gidal, G., Gu, P., Gustafson, H.R., Ho, C., Holmstrom, T., Huang, M., James, C., Jenkins, C.M., Jones, T.D., Kaplan, D.M., Lederman, L.M., Leros, N., Longo, M.J., Lopez, F., Lu, L.C., Luebke, W., Luk, K.-B., Nelson, K.S., Park, H.K., Perroud, J.-P., Rajaram, D., Rubin, H.A., Teng, P.K., Turko, B., Volk, J., White, C.G., White, S.L., Zyla, P.

“…The HyperCP experiment (Fermilab E871) was designed to search for rare phenomena in the decays of charged strange particles, in particular CP violation in Ξ…”
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Study of sparking in Micromegas chambers by Bay, A, Perroud, J.-P, Ronga, F, Derré, J, Giomataris, Y, Delbart, A, Papadopoulos, Y

“…The discharge properties of Micromegas detector are studied in detail. Tests have demonstrated that the origin of discharges in hadron beams is mainly…”
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Search for the Lepton-Number-Violating Decay Ξ − → p μ − μ by Rajaram, D., Burnstein, R. A., Chakravorty, A., Chan, A., Chen, Y. C., Choong, W. S., Clark, K., Dukes, E. C., Durandet, C., Felix, J., Gidal, G., Gu, P., Gustafson, H. R., Ho, C., Holmstrom, T., Huang, M., James, C., Jenkins, C. M., Kaplan, D. M., Lederman, L. M., Leros, N., Longo, M. J., Lopez, F., Lu, L. C., Luebke, W., Luk, K. B., Nelson, K. S., Park, H. K., Perroud, J.-P., Rubin, H. A., Teng, P. K., Volk, J., White, C. G., White, S. L., Zyla, P.

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Observation of the decay K- --> pi(-)mu(+)mu(-) and measurements of the branching ratios for K+/- --> pi(+/-)mu(+)mu(-) by Park, H K, Burnstein, R A, Chakravorty, A, Chan, A, Chen, Y C, Choong, W S, Clark, K, Dukes, E C, Durandet, C, Felix, J, Gidal, G, Gu, P, Gustafson, H R, Ho, C, Holmstrom, T, Huang, M, James, C, Jenkins, C M, Kaplan, D M, Lederman, L M, Leros, N, Longo, M J, Lopez, F, Lu, L, Luebke, W, Luk, K B, Nelson, K S, Perroud, J P, Rajaram, D, Rubin, H A, Teng, P K, Volk, J, White, C, White, S, Zyla, P

“…Using data collected with the HyperCP (E871) spectrometer during the 1997 fixed-target run at Fermilab, we report the first observation of the decay…”
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Observation of parity violation in the Ω−→ΛK− decay by Lu, L.C., Burnstein, R.A., Chakravorty, A., Chen, Y.C., Choong, W.-S., Clark, K., Dukes, E.C., Durandet, C., Felix, J., Fu, Y., Gidal, G., Gustafson, H.R., Holmstrom, T., Huang, M., James, C., Jenkins, C.M., Jones, T.D., Kaplan, D.M., Longo, M.J., Luebke, W., Luk, K.-B., Nelson, K.S., Park, H.K., Perroud, J.-P., Rajaram, D., Rubin, H.A., Volk, J., White, C.G., White, S.L., Zyla, P.

“…The α decay parameter in the process Ω−→ΛK− has been measured from a sample of 4.50 million unpolarized Ω− decays recorded by the HyperCP (E871) experiment at…”
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Development of a fast gaseous detector: ‘Micromegas’ by Barouch, G, Bay, A, Bouchigny, S, Charpak, G, Derré, J, Didierjean, F, Faivre, J.-C, Giomataris, Y, Kochowski, C, Kunne, F, Le Goff, J.-M, Lehar, F, Lemoigne, Y, Loucatos, S, Lugol, J.-C, Magnon, A, Mayer, B, Perroud, J.-P, Platchkov, S, Puill, G, Rebourgeard, Ph, Terrien, Y, Thers, D, Zaccone, H

“…Several 15×15 cm 2 gaseous Micromegas chambers (MICROMEsh GAseous Structure) which consist of a conversion gap and an amplification gap separated by a thin…”
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Search for neutrinoless decays τ→3ℓ by Yusa, Y., Abe, K., Abe, K., Aihara, H., Akatsu, M., Aulchenko, V., Aushev, T., Bahinipati, S., Banas, E., Bedny, I., Bitenc, U., Bizjak, I., Bondar, A., Bozek, A., Bračko, M., Browder, T.E., Chang, M.-C., Cheon, B.G., Chistov, R., Choi, Y., Danilov, M., Dong, L.Y., Eidelman, S., Eiges, V., Fratina, S., Gabyshev, N., Gokhroo, G., Golob, B., Hayashii, H., Hazumi, M., Hinz, L., Hokuue, T., Hoshi, Y., Hou, W.-S., Iijima, T., Inami, K., Itoh, R., Iwasaki, H., Kang, J.S., Kapusta, P., Katayama, N., Kawai, H., Kawasaki, T., Kichimi, H., Kim, H.O., Križan, P., Kuzmin, A., Kwon, Y.-J., Lee, S.H., Li, J., Lin, S.-W., MacNaughton, J., Matsumoto, T., Mikami, Y., Miyata, H., Mohapatra, D., Moloney, G.R., Mori, T., Nagasaka, Y., Nakano, E., Nakazawa, H., Nishida, S., Nitoh, O., Nozaki, T., Ohshima, T., Okabe, T., Olsen, S.L., Ostrowicz, W., Pakhlov, P., Palka, H., Park, H., Park, K.S., Parslow, N., Perroud, J.-P., Poluektov, A., Root, N., Sagawa, H., Schneider, O., Semenov, S., Senyo, K., Sevior, M.E., Starič, M., Sumisawa, K., Sumiyoshi, T., Suzuki, S., Tajima, O., Takasaki, F., Tamura, N., Tanaka, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Varner, G., Wang, C.H., Yamada, Y., Yamashita, Y., Yanai, H., Zhang, Z.P., Zhilich, V.

“…We have searched for neutrinoless τ lepton decays into three charged leptons using an 87.1fb−1 data sample collected with the Belle detector at the KEKB e+e−…”
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Study of the rare hyperon decay Ω ∓ → Ξ ∓ π + π by Kamaev, O., Solomey, N., Burnstein, R.A., Chakravorty, A., Chen, Y.C., Choong, W.S., Clark, K., Dukes, E.C., Durandet, C., Felix, J., Fu, Y., Gidal, G., Gustafson, H.R., Holmstrom, T., Huang, M., James, C., Jenkins, C.M., Jones, T.D., Kaplan, D.M., Longo, M.J., Lu, L.C., Luebke, W., Luk, K.B., Nelson, K.S., Park, H.K., Perroud, J.-P., Rajaram, D., Rubin, H.A., Volk, J., White, C.G., White, S.L., Zyla, P.

“…We report a new measurement of the decay Ω − → Ξ − π + π − with 76 events and a first observation of the decay Ω ¯ + → Ξ ¯ + π + π − with 24 events, yielding a…”
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Measurement of the Asymmetry in the Decay Ω ¯ + → Λ ¯ K + → p ¯ π + K by Lu, L. C., Burnstein, R. A., Chakravorty, A., Chen, Y. C., Choong, W.-S., Clark, K., Dukes, E. C., Durandet, C., Felix, J., Fu, Y., Gidal, G., Gustafson, H. R., Holmstrom, T., Huang, M., James, C., Jenkins, C. M., Jones, T. D., Kaplan, D. M., Longo, M. J., Luebke, W., Luk, K.-B., Nelson, K. S., Park, H. K., Perroud, J.-P., Rajaram, D., Rubin, H. A., Volk, J., White, C. G., White, S. L., Zyla, P.

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Fast signals and single electron detection with a MICROMEGAS photodetector by Derré, J, Giomataris, Y, Rebourgeard, Ph, Zaccone, H, Perroud, J.P, Charpak, G

“…The performance of a new gaseous photodetector was investigated. It consists of a solid photocathode and a gas amplification structure of the MICROMEGAS type…”
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New Measurement of Ξ − → Λ π − Decay Parameters by Huang, M., Burnstein, R. A., Chakravorty, A., Chen, Y. C., Choong, W. S., Clark, K., Dukes, E. C., Durandet, C., Felix, J., Gidal, G., Gustafson, H. R., Holmstrom, T., James, C., Jenkins, C. M., Jones, T., Kaplan, D. M., Lederman, L. M., Leros, N., Longo, M. J., Lopez, Fred, Lu, L., Luebke, W., Luk, K. B., Nelson, K. S., Park, H. K., Perroud, J. P., Rajaram, D., Rubin, H. A., Volk, J., White, C., White, S., Zyla, P.

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The development of the optical discriminator by Atac, M., Charpak, G., Chipaux, R., Delbart, A., Derre, J., Giomataris, Y., Hill, T., Joseph, C., Kaplan, D.M., Kochowski, C., Leros, N., Loucatos, S., Perroud, J.-P., Rebourgeard, Ph, Rosenberg, E.I.

“…New results from the tests of the impact parameter discriminator by the RD30 Collaboration are presented. The device, based on the detection of Cherenkov light…”
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Repolarization of Negative Muons by Polarized $^{209}$Bi Nuclei by Kadono, R, Imazato, J, Ishikawa, T, Nishiyama, K, Nagamine, K, Yamazaki, T, Bosshard, A, Döbeli, M, van Elmbt, L, Schaad, M, Truöl, P, Bay, A, Perroud, J. P, Deutsch, J, Tasiaux, B, Hagn, E

“…Phys. Rev. Lett. 57, 1847 (1986) A large $\mu^-$ polarization was achieved in muonic Bi atoms with the help of the strong hyperfine field in a polarized…”
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Test beam results of the precision gaseous detectors for the LHCb inner tracker by Perroud, J.P

“…A thin detector for particle fluxes as high as 50 kHz/mm 2 is required for the LHCb inner tracking system. Gaseous detectors with a single stage of…”
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n − n Scattering Length from the Photon Spectra of the Reactions π − d → γ nn and π − p → γ n by Gabioud, B., Alder, J. -C., Joseph, C., Loude, J. -F., Morel, N., Perrenoud, A., Perroud, J. -P., Tran, M. T., Winkelmann, E., Dahme, W., Panke, H., Renker, D., Zupančič, Č., Strassner, G., Truöl, P.

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