Studies of Inclusive Hadron Production at BABAR

Intial State Radiation and Inclusive Hadron Production Measurements at Babar

The status of analysis of processes with hard photon emitted from the initial state (ISR) at BABAR is presented. We tag events by the presence of a hard photon in the detector, then reconstruct μμ and several exckusive hadronic final states. The invariant mass of the final state determines an effective collision center of mass energy at which these measurements can be compared with results from...

Hadron Physics at BaBar

The BABAR experiment at SLAC is designed to measure CP violation in the B meson system, however the very high statistics combined with the different e+ and e− beam energies, the detector design and the open trigger allow a wide variety of spectroscopic measurements. We are beginning to tap this potential via several production mechanisms. Here we present recent results from initial state radiat...

Inclusive Hadron Production and Dijets at Hera

The HERA storage ring provides beams of protons at 820 GeV and positrons at 27.5 GeV energy. Collisions of these are recorded at two general purpose detectors, H1 and ZEUS. Measurements of the hadronic final state in deepinelastic scattering and in photoproduction processes allow precise tests of the validity of perturbative Quantum-Chromo Dynamics (pQCD). In addition the extraction of the stro...

Inclusive|Vub | measurements at BABAR

Perturbative description of inclusive single hadron production at HERA

Abstract Light charged hadron production data in the current fragmentation region at HERA are calculated using next-to-leading order perturbative calculations and fragmentation functions obtained from similar data from e+e− reactions. General good agreement is found at large photon virtuality Q2 and intermediate momentum fraction xp, consistent with fragmentation function universality. The desc...