Inclusive production of ω mesons at large transverse momenta in π − Be interactions at 515 GeV / c
نویسندگان
چکیده
We present results on the production of ω mesons at high transverse momenta in πBe interactions at 515 GeV/c. The data span the kinematic range 3.5 ≤ pT ≤ 8 GeV/c. We compare the measured cross section with expectations from Monte Carlo QCD generators. The relative yield of ω to π mesons is used to extract the ratio of vector to pseudoscalar meson production for the first generation of quarks. PACS numbers: 12.38.Qk, 13.85.Ni Typeset using REVTEX
منابع مشابه
Production of π 0 and η mesons at large transverse momenta in pp and p Be interactions at 530 and 800 GeV / c
We present results on the production of high transverse momentum π0 and η mesons in pp and pBe interactions at 530 and 800 GeV/c. The data span the kinematic ranges: 1 < pT < 10GeV/c in transverse momentum and 1.5 units in rapidity. The inclusive π0 cross sections are compared with next-to-leading order QCD calculations and to expectations based on a phenomenological parton-kT model. PACS numbe...
متن کاملProduction of charm mesons at high transverse momentum in 515 GeV / c π − - nucleon
We present results on the production of high transverse momentum charm mesons in collisions of 515 GeV/c negative pions with beryllium and copper targets. The experiment recorded a large sample of events containing high transverse momentum (pT ) showers detected in an electromagnetic calorimeter. From these data, a sample of charm mesons has been reconstructed via their decay into the fully cha...
متن کاملIdentified hadron production at high transverse momenta in p + p collisions at √ s NN = 200 GeV in STAR
We report the transverse momentum (pT ) distributions for identified charged pions, protons and anti-protons using events triggered by high deposit energy in the Barrel Electro-Magnetic Calorimeter (BEMC) from p + p collisions at √ sNN = 200 GeV. The spectra are measured around mid-rapidity (| y | < 0.5) over the range of 3 < pT < 15 GeV/c with particle identification (PID) by the relativistic ...
متن کاملHeavy Flavor Production in Star
In this contribution, the STAR collaboration at RHIC reports on measurements related to heavy flavor production. We present results from D meson production, and from indirect reconstruction of heavy flavor via semi-leptonic decays, including low transverse momentum muons and the inclusive yield of non-photonic electrons. We focus on the non-photonic electrons, and present results over a broad r...
متن کاملExploring the potential of antihyperons in nuclei with antiprotons
A simple method to explore the interaction of antihyperons in nuclei by exclusive hyperon-antihyperon pair production close to threshold in antiproton nucleus interactions is proposed. Due to energy and momentum conservation eventby-event transverse momentum correlations of the produced hyperons and antihyperons contain information on the difference between their potentials. A schematic Monte C...
متن کامل