Production of $$D^{*\pm}$$ mesons in 250 GeV hadron--nucleon interacions and observation of the decay mode $$D^0 \pi^{\pm}$$, $$D^0 \to K^{\mp} \pi^{\pm} \pi^0$$ (in Portuguese)
- Brazilian Center for Research in Physics, Rio de Janeiro (Brazil)
The Fermilab experiment E769 collected approximately 400 billion events using a 250 GeV /c pion, haon and proton beam incident on targets of Al, Cu, Be and W. One measured the xF and p$$2\atop{T}$$ di stributions of 232 ± 13.5 C* through the decay mode D0π, where D0 → Kππ0 without reconstructing the π0 . Fitting the distributions to the form A(l - xF )" and Be-bp$$2\atop{T}$$, respectively, the values n = 4.14±0.31 ±0.03 and b = 0.68±0.06± 0.03 Gev-2 were found. The dependence of the cross section with the atomic number was measured and the fit to the curve Aα gave α= 1.06 ± .08 ± .01. Those measurements are compared with another analysis, with those of other experiments and with predictions based on pert urbative QCD.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1156334
- Report Number(s):
- FERMILAB-THESIS--1992-02
- Country of Publication:
- United States
- Language:
- Portuguese
Similar Records
Production asymmetry of $\Lambda^0$ and ${\overline{\Lambda}}^0$ in $\pi^{\pm}$, $K^{\pm}$, p - nucleon collisions at 250 GeV/c
Measurement of CP Violation in B0 to ΦK0, and of Branching Fraction and CP Violation in B0 → F0(980) K$0\atop{S}$
Measurement of the Ratio of Branching Fractions Br(B$0\atop{s}$ → D$-\atop{s}$ π+)/Br(B0 → D- π+) at CDF-II
Thesis/Dissertation
·
Wed Jan 31 23:00:00 EST 2001
·
OSTI ID:1156382
Measurement of CP Violation in B0 to ΦK0, and of Branching Fraction and CP Violation in B0 → F0(980) K$0\atop{S}$
Thesis/Dissertation
·
Sat Dec 31 19:00:00 EST 2005
·
OSTI ID:925459
Measurement of the Ratio of Branching Fractions Br(B$0\atop{s}$ → D$-\atop{s}$ π+)/Br(B0 → D- π+) at CDF-II
Thesis/Dissertation
·
Sun Feb 29 23:00:00 EST 2004
·
OSTI ID:948159