Cu(p,X)24Na cross section from 30 to 800 GeV

Measurements of the neutron - proton and neutron - carbon total cross section from 150 to 800 keV

A Polarized HERA Collider Electron Beam Proton Beam Beam Energy 26 − 30 GeV 800 − 930 GeV Polarization Status Polarized

1. Space quantization associated with quantized spin directions. Stern, Gerlach, 1921. 2. Atomic fine structure and electron spin magnetic moment. Goudsmit, Uhlenbeck, 1926. 3. Proton anomalous magnetic moment; μp = 2.79 nm. Stern, 1933. 4. Electron spin anomalous magnetic moment. μe = μ0 (1.00119); QED. Kusch, 1947. 5. Electroweak interference from ~e1d DIS parity nonconservation. Prescott & S...

cross section in the energy range from 3 . 0 to 6 . 5 GeV

Measurement of the e[superscript +]e[superscript-] p[¯ over p] cross section in the energy range from 3.0 to 6.5 GeV. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

pp̄ cross section in the energy range from 3 . 0 to 6 . 5 GeV

The Ratio of the Direct Photon Production Cross Section at 630 GeV and at 1800 GeV

We measure the ratio of the isolated direct photon prodution cross section at √ s = 630 GeV to that at √ s = 1800 GeV for the central (|η| < 0.9) and forward (1.6 < |η| < 2.5) rapidity regions. We compare the result with next to leading order QCD predictions using CTEQ parton distribution functions.