R. Rubinstein

A luminosity-independent measurement of the pp total cross section at √s=1.8 TeV

Abstract We report a measurement of the p p total cross section at √ s =1.8 TeV using a luminosity-independent method. Our result is σ T =72.1±3.3 mb ; we also derive the total elastic cross section σ el =16.6±1.6 mb. A value is obtained for the total single diffraction cross section of 11.7±2.3 mb.

Antiproton—proton elastic scattering at s=1.8 TeV from |t| = 0.034 to 0.65 (GeV/c)2☆

Abstract The differential cross section for elastic antiproton—proton scattering at s =1.8 TeV has been measured over the t range 0.034⩽| t |⩽0.65 (GeV/ c ) 2 . A logarithmic slope parameter, B , of 16.3±0.3 (GeV/ c ) −2 is obtained. In contrast to lower energy experiments, no change in slope is observed over this t range.

Total Cross-Sections of pi+-, K+-, p and anti-p on Protons and Deuterons Between 200-GeV/c and 370-GeV/c

Abstract Total cross sections of π ± , K ± , p and p on protons and deuterons have been measured at 6 momenta between 200 and 370 GeV/ c .

A Measurement of the proton-antiproton total cross-section at

Abstract We report a measurement of the p p total cross section at s =1.8 TeV at the Fermilab Tevatron Collider, using the luminosity independent method. Our result is σ T =71.71±2.02 mb. We also obtained values of the total elastic and total inelastic cross sections.

\sqrt{s}

We have studied single diffraction dissociation (pp→pX) in proton-antiproton collisions at √s=1.8TeV, covering the ranges 3⪅MX⪅200 GeV and 0.05⪅|t|⪅0.11 (GeV/c)2. Parameterizing the production to be of the form dσ(dtdM2X) = (M2X)−α exp(bt), we obtain α = 1.13±0.07 and b = 10.5±1.8(GeV/c)−2. The total single diffraction dissociation cross section is 2σSD=8.1±1.7 mb. Comparisons are made to previous lower energy data, and to an earlier measurement by us at the same energy.

= 1.8-TeV

Abstract We have measured ρ, the ratio of the real to the imaginary part of the p p forward elastic scattering amplitude, at s =1.8 xa0TeV. Our result is ρ=0.132±0.056; this can be combined with a previous measurement at the same energy to give ρ=0.135±0.044.

Diffraction dissociation in pp collisions at √s=1.8 TeV

The antiproton-proton small-angle elastic-scattering distribution was measured at(sqrt s ) GeV at the Fermilab Tevatron Collider. A fit to the nuclear-scattering distribution in the range 0.065≤|t|≤0.21 (GeV/c)2 givesb=(16.2±0.5±0.5) (GeV/c)−2 for the logarithmic slope parameter. Using the optical theorem and the luminosity from Collider parameters, we obtain σtoto(1+ρ2)1/2 =(61.7±3.7±4.4)mb.SummaryThe antiproton-proton small-angle elastic-scattering distribution was measured atnn% MathType!MTEF!2!1!+-% feaafiart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr% 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9% vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x% fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaOaaaeaatC% vAUfKttLearyqr1ngBPrgaiuGacqWFZbWCaSqabaaaaa!3C5B!nnnn

Antiproton-proton elastic scattering at% MathType!MTEF!2!1!+-% feaafiart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr% 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9% vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x% fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaOaaaeaatC% vAUfKttLearyqr1ngBPrgaiuGacqWFZbWCaSqabaaaaa!3C5B!=1020 GeV.=1020 GeV.

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