Small Angle <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="italic">J</mi><mi>/</mi><mi mathvariant="italic">ψ</mi></math> Production in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="italic">p</mi><mrow><mrow><mover><mrow><mi mathvariant="italic">p</mi></mrow><mrow><mi>¯</mi></mrow></mover></mrow></mrow></math> Collisions at <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>√</mi><mi mathvariant="italic">s</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>1.8</mn><mspace></mspace><mi mathvariant="normal">TeV</mi></math>

doi:10.1103/PhysRevLett.82.35

Small Angle $J / ψ$ Production in $p \bar{p}$ Collisions at $\sqrt s = 1.8 TeV$

B. Abbott et al. (D0 Collaboration)

Phys. Rev. Lett. 82, 35 – Published 4 January 1999

Abstract

This paper presents the first measurement of inclusive $J / ψ$ production cross section in the forward pseudorapidity region $2.5 \leq | η^{J / ψ} | \leq 3.7$ in $p \bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV. The results are based on 9.8 ${pb}^{- 1}$ of data collected using the D0 detector at the Fermilab Tevatron Collider. The inclusive $J / ψ$ cross section for transverse momenta between 1 and 16 GeV/ $c$ is compared with theoretical models of charmonium production.