159 citations · 315 across the 14 of their papers we have counts for
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On the possibility of measuring the polarization of a beam at EIC by the HJET polarimeter
A. A. Poblaguev, G. Atoian, N. H. Buttimore +1
The requirements for hadron polarimetry at the future Electron Ion Collider (EIC) include measurements of the absolute helion (, ) beam polarization with systemat…
Dynamics of polarization buildup by spin filtering
N. H. Buttimore, D. S. O'Brien
There has been much recent research into polarizing an antiproton beam, instigated by the recent proposal from the PAX (Polarized Antiproton eXperiment) project at GSI Darmstadt. I…
Helicity amplitudes and crossing relations for antiproton proton reactions
N. H. Buttimore, E. Jennings
Antiproton proton annihilation reactions allow unique access to the moduli and phases of nucleon electromagnetic form factors in the time like region. We present the helicity ampli…
Spin Observables for Polarizing Antiprotons
D. S. O'Brien, N. H. Buttimore
The PAX project at GSI Darmstadt plans to polarize an antiproton beam by repeated interaction with a hydrogen target in a storage ring. Many of the beam particles are required to r…
Antiproton polarization induced by lepton interactions
D. S. O'Brien, N. H. Buttimore
We present expressions for electromagnetic helicity amplitudes and spin observables for any elastic spin 1/2 - spin 1/2 scattering to first order in QED. In particular all electrom…
Polarisation observables in lepton antilepton to proton antiproton reactions including lepton mass
N. H. Buttimore, E. Jennings
General expressions, including the lepton mass, for the spin averaged differential cross section for the annihilation reaction lepton antilepton to proton antiproton are given, as…
Spin dependent elastic antiproton interactions
D. S. O'Brien, N. H. Buttimore
Relativistic formulae for spin averaged and spin dependent one photon exchange differential cross sections are developed for spin half fermion fermion elastic scattering. Spin tran…
An absolute polarimeter for high energy protons
N. H. Buttimore, E. Leader, T. L. Trueman
A study of the spin asymmetries for polarized elastic proton proton collisions in the electromagnetic hadronic interference (CNI) region of momentum transfer provides a method of s…
Bounds in proton-proton elastic scattering at low momentum transfer
A. T. Bates, N. H. Buttimore
We present a bound on the imaginary part of the single helicity-flip amplitude for spin 1/2-spin 1/2 scattering at small momentum transfer. The variational method of Lagrange multi…
The spin dependence of high energy proton scattering
N. H. Buttimore, B. Z. Kopeliovich, E. Leader +2
Motivated by the need for an absolute polarimeter to determine the beam polarization for the forthcoming RHIC spin program, we study the spin dependence of the proton-proton elasti…