Published 1996 | Version v1
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Measurement of the coulomb interaction effect in π+π- pairs from the reaction pTa→π+π-X at 70 GeV

  • 1. Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Nuclear Problems

Description

Production of π+π- pairs was studied for the reaction pTa→π+π-X at 70 GeV. For the pions with lab momenta from 0.8 to 2.4 GeV/c the two-particle correlation function was measured in the interval of the c.m.s. relative momentum 0≤q≤50 MeV/c. The Coulomb final state interaction for pions produced in a region much smaller than 1/mπα leads to a sharp increase in the yield of π+π- pairs with q<10MeV/c. The effect of the Coulomb interaction has allowed separation of the π+π- pairs with respect to the size of their production region. 25 refs., 8 figs., 6 tabs

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Publishing Information

Imprint Pagination
26 p.
Report number
JINR-E--1-96-256

Optional Information

Notes
Submitted to Yadernaya Fizika.