Momentum measurement by the angular method in the Emulsion Cloud Chamber
- M. Giorgini
- Nicola D'Ambrosio
- P. Righini
- G. Sirri
- G. De Rosa
- E. Barbuto
- S. Mangano
- C. Pistillo
- Salvatore Buontempo
- G. Rosa
- M. Ieva
- L. Scotto Lavina
- M. De Serio
- S. Simone
- Cristiano Bozza
- Chiara Sirignano
- P. Migliozzi
- V. Tioukov
- G. De Lellis
- Maximiliano Sioli
DOIAbstract
We present the first automated momentum measurement in an Emulsion Cloud Chamber, consisting of multiple sandwiches of lead plates and nuclear emulsion sheets. The measurement is based on the detection of the multiple Coulombscattering analysed by the so-called angular method. A 3 X0 chamber was exposed to 2, 3 and 4 GeV=c p � : A pion momentum resolution of 36% at 4 GeV=c; 35% at 3 GeV=c and 28% for 2 GeV=c was achieved
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