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Showing papers by "Sandro Palestini published in 1995"

Journal Article•DOI•
Study of the eta c(1 (1)S0) state of charmonium formed in p-barp annihilations and a search for the eta c'(2 (1)S0).

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T. A. Armstrong, D. Bettoni, V. Bharadwaj, Cristina Biino, G. Blanford, Giorgio Borreani, D. Broemmelsiek, A. Buzzo, Roberto Calabrese, A. Ceccucci, R. Cester, M. Church, P. F. Dalpiaz, P. F. Dalpiaz, D. Dimitroyannis, M. Fabbri, James E. Fast, A. Gianoli, C. M. Ginsburg, K. E. Gollwitzer, G. Govi, A. Hahn, M. Hasan, S. Hsueh, Raymond A. Lewis, Eleonora Luppi, M. M. Macri, A. M. Majewska, M. Mandelkern, F. Marchetto, Mauro Marinelli, J. Marques, W. Marsh, M. Martini, M. Masuzawa, E. Menichetti, A. Migliori, R. Mussa, Sandro Palestini, Marco Pallavicini, S. Passaggio, Nadia Pastrone, C. Patrignani, John Peoples, Fabrizio Petrucci, M.G. Pia, S. Pordes, P. A. Rapidis, R. Ray, J. D. Reid, G. Rinaudo, B. Roccuzzo, J. L. Rosen, A. Santroni, M. Sarmiento, M. Savrré, J. Schultz, K. K. Seth, A. J. S. Smith, G. A. Smith, M. Sozzi, S. Trokenheim, M. F. Weber, S. J. Werkema, Y. Zhang, J. Zhao, G. Zioulas 
01 Nov 1995-Physical Review D
TL;DR: In this paper, the E760 Collaboration performed an experiment in the Antiproton Accumulator at Fermilab to study the two photon decay of the charmonium state formed in {ital {bar p}p} annihilations.
Abstract: The E760 Collaboration performed an experiment in the Antiproton Accumulator at Fermilab to study the two photon decay of the {eta}{sub {ital c}}(1 {sup 1}{ital S}{sub 0}) charmonium state formed in {ital {bar p}p} annihilations. This resulted in a new measurement of the mass {ital M}{sub {eta}{ital c}}=2988.3{sub {minus}3.1}{sup +3.3} MeV/{ital c}{sup 2} and of the product {ital B}({eta}{sub {ital c}}{r_arrow}{ital {bar p}p}){times}{Gamma}({eta}{sub {ital c}}{r_arrow}{gamma}{gamma}) =(8.1{sub {minus}2.0}{sup +2.9}) eV. We performed a search for the process {ital {bar p}p}{r_arrow}{eta}{sub {ital c}}{sup {prime}}(2 {sup 1}{ital S}{sub 0}){r_arrow}{gamma}{gamma} over a limited range of center-of-mass energies. Since no signal was observed, we derived upper limits on the product of branching ratios {ital B}({eta}{sub {ital c}}{sup {prime}}{r_arrow}{ital {bar p}p}){times}{ital B}({eta}{sub {ital c}}{sup {prime}}{r_arrow}{gamma}{gamma}) in the center-of-mass energy range 3584{le} {radical}{ital s} {le}3624 MeV. We observed no signal for the nonresonant process {ital {bar p}}+{ital p}{r_arrow}{gamma}+{gamma} and obtain upper limits.

21 citations

Journal Article•DOI•
The liquid krypton calorimeter for experiment CERN-NA48

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Sandro Palestini1•
CERN1
11 Dec 1995-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: A quasi-homogeneous liquid krypton electromagnetic calorimeter is under construction for a precision study of CP violation in neutral kaons decays as mentioned in this paper, where the main characteristics of the detector are discussed, together with results on energy, space and time resolution obtained with a prototype detector.
Abstract: A quasi-homogeneous liquid krypton electromagnetic calorimeter is under construction for a precision study of CP violation in neutral kaons decays. The main characteristics of the detector are discussed, together with results on energy, space and time resolution obtained with a prototype detector.

2 citations