Charmonium hadroproduction at the Tevatron II
Thesis/Dissertation
·
OSTI ID:39347
Hadronic production of charmonium states such as J/{psi}, {chi}{sub c}, and {psi}{prime} provides valuable tests for the theory of strong interaction, known as Quantum Chromodynamics (QCD), and for related theoretical models. In this thesis the authors analyze data collected by the experiment E672/E706 using 530 GeV/c {pi}{sup {minus}} beam incident on Be and Cu targets at Tevatron II, Fermi National Accelerator Laboratory. The experiment was performed at the highest {pi}N center-of-mass energy up to date and very respectable charmonium mass resolution was achieved. The apparatus of the experiment for the 1990 run-period is described. J/{psi} mesons are detected in the {mu}{sup +}{mu}{sup {minus}} decay mode. The integrated and differential cross sections of J/{psi} hadronic production are measured. The dependence of the cross section on atomic numbers of the targets and on reaction inelasticity are also determined. The {chi}{sub c} mesons are detected in the decay mode {chi}{sub c} {yields} J/{psi}{gamma}, with the photon converted to e{sup +}e{sup {minus}} in the spectrometer. The mass resolution is sufficient to resolve {chi}{sub c1}(3508) and {chi}{sub c2}(3555). The {psi}{prime} mesons are detected in both J/{psi}{pi}{sup +}{pi}{sup {minus}} and {mu}{sup +}{mu}{sup {minus}} decay modes. The fractions of observed J/{psi} coming from {chi}{sub c} or {psi}{prime} decays are measured. From these results, the prompt production cross sections of the charmonium states J/{psi}, {chi}{sub c}, and {psi}{prime} are estimated.
- Research Organization:
- Indiana Univ., Bloomington, IN (United States)
- OSTI ID:
- 39347
- Country of Publication:
- United States
- Language:
- English
Similar Records
Charmonium production and a search for A{sub b} in Fermilab E672/E706
Differences between proton- and. pi. /sup -/-induced production of the charmonium chi states
The production of J//psi/ and associated particles in the collision of 530 GeV/c protons and pions with nuclear targets
Journal Article
·
Fri Mar 31 23:00:00 EST 1995
· Bulletin of the American Physical Society
·
OSTI ID:374968
Differences between proton- and. pi. /sup -/-induced production of the charmonium chi states
Journal Article
·
Sun Feb 24 23:00:00 EST 1985
· Phys. Rev. Lett.; (United States)
·
OSTI ID:5894606
The production of J//psi/ and associated particles in the collision of 530 GeV/c protons and pions with nuclear targets
Conference
·
Sat Dec 31 23:00:00 EST 1988
·
OSTI ID:5762292