The Study of Hadronization Using Energy Flow from e⁺e^- Annihilation into Quarks and Gluons at √s of 29 GeV

Technical Report · Thu Jun 14 00:00:00 EDT 2018

DOI:https://doi.org/10.2172/1454009· OSTI ID:1454009

Rosenberg, Leslie J. ^[1]

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1. Stanford Univ., Stanford, CA (United States)

We have made a high statistics study of QCD jets produced in e⁺e^- annihilations at √s of 29GeV and observed in the MAC detector located at the - PEP storage ring at SLAC. The MAC detector uses calorimetry and provides a homogeneous response over much of its 98% •4π sr instrumented solid angle. A data sample of well reconstructed hadronic events was selected by requiring that E_vis in the calorimeters be near √s and almost all the energy be deposited in the central calorimeters. Fits of the jet transverse energy flow are made to the data using String (STR) model and several types of Independent Jet (IJM) model hypotheses, where α_s, the strong coupling constant, and σ_q, the width of the secondary quark P_⟂ distribution, are free parameters.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1454009
• Report Number(s): SLAC-R-289
• Country of Publication: United States
• Language: English