Pseudorapidity distributions of charged particles produced in $$\bar{p}p$$ interactions at $$\sqrt{s} = 630$$ GeV and 1800 GeV

Journal Article · Fri Sep 01 00:00:00 EDT 1989 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.41.2330· OSTI ID:1155521

Abe, F.

We present measurements of the pseudo-rapidity (η) distribution of charged particles (dN^ch/dη) produced within |η|≤ 3.5 in proton-antiproton collisions at s= of 630 and 1800 GeV. We measure dN^ch/dη at η = 0 to be 3.18±0.05(stat)±0.10(sys) at 630 GeV, and 3.95±0.02(stat)±0.13(sys) at 1800 GeV. Many systematic errors in the ratio of dN^ch dη at the two energies cancel, and we measure 1.26±0.01±0.04 for the ratio of dN^ch/dη at 1800 GeV to that at 630 GeV within |η|≤ 3. Comparing to lower energy data, we observe an increase faster than In(s) in dN^ch dη at η=0

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: CDF Collaboration
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1155521
• Report Number(s): FERMILAB-PUB-89-201-E; PRVDAQ
• Journal Information: Physical Review. D, Particles Fields, Vol. 41, Issue 7; ISSN 0556-2821
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS