Longitudinal and Transverse Cross Sections in the 1H(e,eK+)Λ Reaction

G. Niculescu et al.
Phys. Rev. Lett. 81, 1805 – Published 31 August 1998
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Abstract

The 1H(e,eK+)Λ reaction was studied as a function of the squared four-momentum transfer, Q2, and the virtual photon polarization, ɛ. For each of four Q2 settings, 0.52, 0.75, 1.00, and 2.00 (GeV/c)2, the longitudinal and transverse virtual photon cross sections were extracted in measurements at three virtual photon polarizations. The Q2 dependence of the σL/σT ratio differs significantly from current theoretical predictions. This, combined with the precision of the measurement, implies a need for revision of existing calculations.

  • Received 27 March 1998

DOI:https://doi.org/10.1103/PhysRevLett.81.1805

©1998 American Physical Society

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Vol. 81, Iss. 9 — 31 August 1998

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Heating up of Superconductors
January 27, 2017

This collection marks the 30th anniversary of the discovery of high-temperature superconductors. The papers selected highlight some of the advances that have been made to date, both in understanding why these compounds behave in the way they do, and in utilizing them in applications. The papers included in the collection have been made free to read.

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