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We describe some results obtained by the OBELIX experiment at LEAR by exploiting the whole spectrometer, including the electromagnetic calorimeter, to study the antiproton-proton annihilation at rest in an NTP hydrogen target. In particular, we give some information on the calibration of the calorimeter, as obtained from the analysis of two-prong events, and we describe the status of the analysis of the first sample of «all neutrals» events collected in gaseous hydrogen. A preliminary result on the branching ratio of the annihilation reaction p ¯ p→π 0 π 0 is reported

First results from OBELIX on reactions with detected neutral pions in the final state / V. G., A., A., A., A., A., Agnello, M., F., B., G., B., G., B., A., B., P., B., G., B., E., B., T., B., M., B., M. P., B., L., B., D., C., M., C., B., C., P., C., C., C., et al.. - In: NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. A, NUCLEI, PARTICLES AND FIELDS. - ISSN 1124-1861. - 107 (11):(1994), pp. 2287-2303. (HADRON ’93 Como (ITA) June 21–25, 1993) [10.1007/BF02733995].

First results from OBELIX on reactions with detected neutral pions in the final state

AGNELLO, MICHELANGELO;IAZZI, Felice;MINETTI, Bruno;
1994

Abstract

We describe some results obtained by the OBELIX experiment at LEAR by exploiting the whole spectrometer, including the electromagnetic calorimeter, to study the antiproton-proton annihilation at rest in an NTP hydrogen target. In particular, we give some information on the calibration of the calorimeter, as obtained from the analysis of two-prong events, and we describe the status of the analysis of the first sample of «all neutrals» events collected in gaseous hydrogen. A preliminary result on the branching ratio of the annihilation reaction p ¯ p→π 0 π 0 is reported
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1845561
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