Pseudorapidity distributions of charged particles produced in p p interactions at radical s =630 and 1800 GeV

Journal Article · Sun Apr 01 00:00:00 EST 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.2330· OSTI ID:7002431

Abe, F; Amidei, D; Apollinari, G; Ascoli, G; Atac, M; Auchincloss, P; Baden, A R; Barbaro-Galtieri, A; Barnes, V E; Bedeschi, F; Belforte, S; Bellettini, G; Bellinger, J; Bensinger, J; Beretvas, A; Berge, P; Bertolucci, S; Bhadra, S; Binkley, M; Blair, R ; Blocker, C; Bofill, J; Booth, A W; Brandenburg, G; Brown, D; Byon, A; Byrum, K L; Campbell, M; Carey, R; Carithers, W; Carlsmith, D; Carroll, J T; Cashmore, R; Cervelli, F; Chadwick, K; Chapin, T; Chiarelli, G; Chinowsky, W; Cihangir, S; Cline, D; Connor, D; Contreras, M; Cooper, J; Cordelli, M; Curatolo, M; Day, C; DelFabbro, R; Dell'Orso, M; DeMortier, L; Devlin, T; DiBitonto, D; Diebold, R; Dittus, F; DiVirgilio, A; Elias, J E; Ely, R; Errede, S; Esposito, B; Flaugher, B; Focardi, E; Foster, G W; Franklin, M; Freeman, J; Frisch, H; Fukui, Y; Garfinkel, A F; Giannetti, P; Giokaris, N; Giromini, P; Gladney, L; Gold, M; Goulianos, K; Grosso-Pilcher, C; Haber, C

We present measurements of the pseudorapidity ({eta}) distribution of charged particles ({ital dN}{sub ch}/{ital d}{eta}) produced with {vert bar}{eta}{vert bar}{le}3.5 in proton-antiproton collisions at {radical}{ital s} of 630 and 1800 GeV. We measure {ital dN}{sub ch}/{ital d}{eta} at {eta}=0 to be 3.18{plus minus}0.06(stat){plus minus}0.10(syst) at 630 GeV, and 3.95{plus minus}0.03(stat){plus minus}0.13(syst) at 1800 GeV. Many systematic errors in the ratio of {ital dN}{sub ch}/{ital d}{eta} at the two energies cancel, and we measure 1.26{plus minus}0.01{plus minus}0.04 for the ratio of {ital dN}{sub ch}/{ital d}{eta} at 1800 GeV to that at 630 GeV within {vert bar}{eta}{vert bar}{le}3. Comparing to lower-energy data, we observe an increase faster than ln({ital s}) in {ital dN}{sub ch}/{ital d}{eta} at {eta}=0.

• OSTI ID: 7002431
• Journal Information: Physical Review, D (Particles Fields); (USA), Vol. 41:7; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARGED PARTICLES
PARTICLE PRODUCTION
PROTON-ANTIPROTON INTERACTIONS
PARTICLE RAPIDITY
ENERGY DEPENDENCE
FERMILAB TEVATRON
GEV RANGE 100-1000
SCINTILLATION COUNTERS
TEV RANGE 01-10
ACCELERATORS
BARYON-BARYON INTERACTIONS
CYCLIC ACCELERATORS
ENERGY RANGE
GEV RANGE
HADRON-HADRON INTERACTIONS
INTERACTIONS
MEASURING INSTRUMENTS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
RADIATION DETECTORS
SYNCHROTRONS
TEV RANGE
645103* - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Interactions & Baryon & Meson Properties