We report on measurements of differential cross sections dsigma/dp(T) for prompt charm meson production in p (p) over bar collisions at root of s=1.96 TeV using 5.8+/-0.3 pb(-1) of data from the CDF II detector at the Fermilab Tevatron. The data are collected with a new trigger that is sensitive to the long lifetime of hadrons containing heavy flavor. The charm meson cross sections are measured in the central rapidity region |y| less than or equal to 1 in four fully reconstructed decay modes: D(0)-->K(-)pi(+), D(*+)-->D(0)pi(+), D(+)-->K(-)pi(+)pi(+), D(s)(+)-->phipi(+), and their charge conjugates. The measured cross sections are compared to theoretical calculations.
Measurement of prompt charm meson production cross sections in p(p)over-bar collisions at root s=1.96 TeV
CIOCCI, MARIA AGNESE;DONATI, SIMONE;PUNZI, GIOVANNI;
2003-01-01
Abstract
We report on measurements of differential cross sections dsigma/dp(T) for prompt charm meson production in p (p) over bar collisions at root of s=1.96 TeV using 5.8+/-0.3 pb(-1) of data from the CDF II detector at the Fermilab Tevatron. The data are collected with a new trigger that is sensitive to the long lifetime of hadrons containing heavy flavor. The charm meson cross sections are measured in the central rapidity region |y| less than or equal to 1 in four fully reconstructed decay modes: D(0)-->K(-)pi(+), D(*+)-->D(0)pi(+), D(+)-->K(-)pi(+)pi(+), D(s)(+)-->phipi(+), and their charge conjugates. The measured cross sections are compared to theoretical calculations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.