Note on Inelastic Cross Section in p-p Scattering

Measurement of high-Q charged current cross sections in e−p deep inelastic scattering at HERA

Cross sections for ep charged current deep inelastic scattering have been measured at a centre-of-mass energy of 318GeV with an integrated luminosity of 16.4 pb using the ZEUS detector at HERA. Differential cross-sections dσ/dQ, dσ/dx and dσ/dy are presented for Q > 200GeV. In addition, dσ/dxdQ was measured in the kinematic range 280GeV < Q < 30 000GeV and 0.015 < x < 0.42. The predictions of t...

The Elusive p-air Cross Section

For the p̄p and pp systems, we have used all of the extensive data of the Particle Data Group[K. Hagiwara et al. (Particle Data Group), Phys. Rev. D 66, 010001 (2002).]. We then subject these data to a screening process, the “Sieve” algorithm[M. M. Block, physics/0506010.], in order to eliminate “outliers” that can skew a χ2 fit. With the “Sieve” algorithm, a robust fit using a Lorentzian distri...

Measurement of charged and neutral current e-p deep inelastic scattering cross sections at high Q2.

A Note on ‘Hot Spot’ Hunting in Deep-Inelastic Scattering

We consider the inclusive cross section for jet production with large transverse momentum in deep-inelastic scattering. This process has been proposed as a probe of small-x physics, particularly the measurement of ‘hot spots’ inside the proton. We present a numerical calculation of this process, taking into account a larger phase space. The theoretical reliability as well as phenomenological un...

Note on Shadowing and Diffraction in Deep - Inelastic Lepton Scattering ∗ )

We discuss the close relation between shadowing in deep-inelastic lepton-nucleus scattering and diffractive photoand leptoproduction of hadrons from free nucleons. We show that the magnitude of nuclear shadowing at small Bjorken-x, as measured by the E665 and NMC collaborations, is directly related to HERA data on the amount of diffraction in the scattering from free nucleons. ———————————— ) Wo...