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Start Over Author "The Kloe Collaboration" Journal journal of high energy physics
2 results on '"The Kloe Collaboration"'

1. Precise measurements of the η meson and the neutral kaon masses with the KLOE detector

Author

The KLOE collaboration, F Ambrosino, A Antonelli, M Antonelli, F Archilli, C Bacci, P Beltrame, G Bencivenni, S Bertolucci, C Bini, C Bloise, S Bocchetta, F Bossi, P Branchini, R Caloi, P Campana, G Capon, T Capussela, F Ceradini, S Chi, G Chiefari, P Ciambrone, E. De Lucia, A. De Santis, P. De Simone, G. De Zorzi, A Denig, A. Di Domenico, C. Di Donato, B. Di Micco, A Doria, M Dreucci, G Felici, A Ferrari, M. L Ferrer, S Fiore, C Forti, P Franzini, C Gatti, P Gauzzi, S Giovannella, E Gorini, E Graziani, W Kluge, V Kulikov, F Lacava, G Lanfranchi, J Lee-Franzini, D Leone, M Martini, P Massarotti, W Mei, S Meola, S Miscetti, M Moulson, S Müller, F Murtas, M Napolitano, F Nguyen, M Palutan, E Pasqualucci, A Passeri, V Patera, F Perfetto, M Primavera, P Santangelo, G Saracino, B Sciascia, A Sciubba, A Sibidanov, T Spadaro, M Testa, L Tortora, P Valente, G Venanzoni, R Versaci, G Xu, The KLOE, Collaboration, Ambrosino, Fabio, A., Antonelli, M., Antonelli, F., Archilli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, S., Bocchetta, F., Bossi, P., Branchini, R., Caloi, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, Chiefari, Giovanni, P., Ciambrone, E., De Lucia, A., De Santi, P., De Simone, G., De Zorzi, A., Denig, A., Di Domenico, C., Di Donato, B., Di Micco, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, S., Fiore, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, E., Gorini, E., Graziani, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., Lee Franzini, D., Leone, M., Martini, Massarotti, Paolo, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., Müller, F., Murta, Napolitano, Marco, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, M., Primavera, P., Santangelo, Saracino, Giulio, B., Sciascia, A., Sciubba, A., Sibidanov, T., Spadaro, M., Testa, L., Tortora, P., Valente, G., Venanzoni, R., Versaci, and G., Xu

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Meson, Detector, Sigma, High Energy Physics::Experiment, e plus -e experiments, Nuclear Experiment, Mass measurement, Gamma gamma
Abstract

We present precise measurements of the eta and K0 masses using the processes phi to eta gamma, eta to gamma gamma and phi to Ks Kl, Ks to pi+ pi-. The K0 mass measurement, M_K=497.583 +/- 0.005 (stat) +/- 0.020 (syst) MeV, is in acceptable agreement with the previous measurements but is more accurate. We find m(eta) = 547.874 +/- 0.007 (stat) +/- 0.031 (syst) MeV. Our value is the most accurate to date and is in agreement with two recent measurements based on eta decays, but is inconsistent, by about 10 sigma, with a measurement of comparable precision based on eta production at threshold.

Published
2007
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2. Determination of η → π+π−π0Dalitz plot slopes and asymmetries with the KLOE detector

Author

The KLOE collaboration, F Ambrosino, A Antonelli, M Antonelli, F Archilli, C Bacci, P Beltrame, G Bencivenni, S Bertolucci, C Bini, C Bloise, S Bocchetta, F Bossi, P Branchini, R Caloi, P Campana, G Capon, T Capussela, F Ceradini, F Cesario, S Chi, G Chiefari, P Ciambrone, F Crucianelli, E. De Lucia, A. De Santis, P. De Simone, G. De Zorzi, A Denig, A. Di Domenico, C. Di Donato, B. Di Micco, A Doria, M Dreucci, G Felici, A Ferrari, M. L Ferrer, S Fiore, C Forti, P Franzini, C Gatti, P Gauzzi, S Giovannella, E Gorini, E Graziani, W Kluge, V Kulikov, F Lacava, G Lanfranchi, J Lee-Franzini, D Leone, M Martini, P Massarotti, W Mei, S Meola, S Miscetti, M Moulson, S Müller, F Murtas, M Napolitano, F Nguyen, M Palutan, E Pasqualucci, A Passeri, V Patera, F Perfetto, M Primavera, P Santangelo, G Saracino, B Sciascia, A Sciubba, A Sibidanov, T Spadaro, M Testa, L Tortora, P Valente, G Venanzoni, R Versaci, G Xu, Ambrosino, F, Antonelli, A, Antonelli, M, Archilli, F, Bacci, C, Beltrame, P, Bencivenni, G, Bertolucci, S, Bini, C, Bloise, C, Bocchetta, S, Bossi, F, Branchini, P, Caloi, R, Campana, P, Capon, G, Capussela, T, Ceradini, Filippo, Cesario, F, Chi, S, Chiefari, G, Ciambrone, P, Crucianell, F, De Lucia, E, De Santis, A, De Simone, P, De Zorzi, G, Denig, A, Di Domenico, A, Di Donato, C, DI MICCO, Biagio, Doria, A, Dreucci, M, Felici, G, Ferrari, A, Ferrer, Ml, Fiore, S, Forti, C, Franzini, P, Gatti, C, Gauzzi, P, Giovannella, S, Gorini, E, Graziani, E, Kluge, W, Kulikov, V, Lacava, F, Lanfranchi, G, Lee Franzini, J, Leone, D, Martini, M, Massarotti, P, Mei, W, Meola, S, Miscetti, S, Moulson, M, Muller, S, Murtas, F, Napolitano, M, Nguyen, F, Palutan, M, Pasqualucci, E, Passeri, A, Patera, V, Perfetto, F, Primavera, M, Santangelo, P, Saracino, G, Sciascia, B, Sciubba, A, Sibidanov, A, Spadaro, T, Testa, M, Tortora, L, Valente, P, Venanzoni, G, Versaci, R, Xu, G., Ambrosino, Fabio, Capussela, Tiziana, Chiefari, Giovanni, DI DONATO, Camilla, A., Doria, Massarotti, Paolo, Meola, Sabino, Napolitano, Marco, Perfetto, Francesco, Saracino, Giulio, Ceradini, F, DE LUCIA, E, DE SANTIS, A, DE SIMONE, P, DE ZORZI, G, DI DOMENICO, A, DI DONATO, C, DI MICCO, B, Gorini, Edoardo, LEE FRANZINI, J, and Primavera, Margherita

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Meson, E+-e- experiments, Electron–positron annihilation, Detector, Dalitz plot, High Energy Physics - Experiment, Density distribution, High Energy Physics::Experiment, Nuclear Experiment, Parametrization
Abstract

We have studied, with the KLOE detector at the DA$\Phi$NE $\Phi$-Factory, the dynamics of the decay $\eta\to\pi^+\pi^-\pi^0$ using $\eta$ mesons from the decay $\phi\to\eta\gamma$ for an integrated luminosity ${\mathcal L}$ = 450 pb$^{-1}$. From a fit to the Dalitz plot density distribution we obtain a precise measurement of the slope parameters. An alternative parametrization relates the $\pi^+\pi^-\pi^0$ slopes to that for $\eta\to 3\pi^0$ showing the consistency of KLOE results for both channels. We also obtain the best confirmation of the $C$-invariance in the $\eta\to\pi^+\pi^-\pi^0$ decay., Comment: 15 pages, 7 figures

Published
2008
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