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Titolo:
Study of jet production in p-N interactions at root s approximate to 500 GeV in EAS multicore events
Autore:
Aglietta, M; Alessandro, B; Antonioli, P; Arneodo, F; Bergamasco, L; Bertaina, M; Castagnoli, C; Castellina, A; Chiavassa, A; Castagnoli, GC; Piazzoli, BD; Di Sciascio, G; Fulgione, W; Galeotti, P; Ghia, PL; Iacovacci, M; Mannocchi, G; Morello, C; Navarra, G; Riccati, L; Saavedra, O; Trinchero, GC; Vallania, P; Vernetto, S; Vigorito, C;
Indirizzi:
Univ Turin, Dipartimento Fis Gen, I-10125 Turin, Italy Univ Turin Turin Italy I-10125 ipartimento Fis Gen, I-10125 Turin, Italy CNR, Ist Cosmogeofis, I-10133 Turin, Italy CNR Turin Italy I-10133CNR, Ist Cosmogeofis, I-10133 Turin, Italy Ist Nazl Fis Nucl, Sez Torino, Turin, Italy Ist Nazl Fis Nucl Turin Italy t Nazl Fis Nucl, Sez Torino, Turin, Italy Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy Ist Nazl Fis Nucl Bologna Italy I-40126 Bologna, I-40126 Bologna, Italy Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, Laquila, Italy Ist Nazl Fis Nucl Laquila Italy cl, Lab Nazl Gran Sasso, Laquila, Italy Univ Naples, Dipartimento Sci Fisiche, Naples, Italy Univ Naples Naples Italy aples, Dipartimento Sci Fisiche, Naples, Italy Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy Ist Nazl Fis Nucl Naples Italy I-80125 Sez Napoli, I-80125 Naples, Italy
Titolo Testata:
PHYSICS LETTERS B
fascicolo: 3-4, volume: 460, anno: 1999,
pagine: 474 - 483
SICI:
0370-2693(19990812)460:3-4<474:SOJPIP>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
COLLISIONS;
Keywords:
large transverse momentum; jet; proton-nucleus interactions; EAS; EAS multicores;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Vigorito, C Univ Turin, Dipartimento Fis Gen, Via P Giuria 1, I-10125 Turin, Italy Univ Turin Via P Giuria 1 Turin Italy I-10125 25 Turin, Italy
Citazione:
M. Aglietta et al., "Study of jet production in p-N interactions at root s approximate to 500 GeV in EAS multicore events", PHYS LETT B, 460(3-4), 1999, pp. 474-483

Abstract

The cross section for large p(t) jet production for transverse momentum 10less than or equal to p(t) less than or equal to 20 GeV/c and rapidity 1.6less than or equal to eta less than or equal to 2.6 in p-N (p-'air') interactions is studied from the analysis of multicore Extensive Air Showers recorded in the EAS-TOP calorimeter. The projectiles are the leading particlesinteracting at atmospheric depths between 250 and 480 cm(-2), the CMS energy of interaction being root s = 500 GeV. The slope of the p(t) distribution agrees with the expected one from the p-(p) over bar collider data at thesame CMS energy. The measured jet production cross section in p-N interactions with respect to p-(p) over bar interactions is (d sigma/dp(t))(pN)(jet) = (d sigma/dp(t))(p (p) over bar)(jet) . A(alpha) with alpha = 1.56 +/- 0.07 for A = 14.7 (average mass number of 'air' nuclei). Such value is compatible within the experimental uncertainties with the one obtained in p-nucleus accelerator measurements at root s similar to 30 GeV in the same range of transverse momentum and rapidity. No indication of increase of alpha with energy, i.e. of the entity of the 'Cronin effect', is found. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

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Documento generato il 27/11/20 alle ore 06:17:21