Published February 1989 | Version v1
Journal article Metadata-only

A study of jets from b quarks produced in e+e- annihilations at √s = 35-46 GeV

Creators

  • 1. Technische Hochschule Aachen (Germany, F.R.). Lehrstuhl fuer Experimentalphysik 1A und 1. Physikalisches Inst.
  • 2. Bonn Univ. (Germany, F.R.). Physikalisches Inst.
  • 3. Bristol Univ. (UK). H.H. Wills Physics Lab.
  • 4. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.)
  • 5. Dortmund Univ. (Germany, F.R.). Inst. fuer Physik
  • 6. Hamburg Univ. (Germany, F.R.). 2. Inst. fuer Experimentalphysik
  • 7. Imperial Coll. of Science and Technology, London (UK). Dept. of Physics
  • 8. Universidad Autonoma de Madrid (Spain)
  • 9. Oxford Univ. (UK). Dept. of Nuclear Physics
  • 10. Queen Mary Coll., London (UK). Dept. of Physics
  • 11. Rutherford Appleton Lab., Chilton (UK)
  • 12. Siegen Univ. (Gesamthochschule) (Germany, F.R.). Fachbereich 7 - Physik
  • 13. Weizmann Inst. of Science, Rehovoth (Israel)
  • 14. Wisconsin Univ., Madison (USA). Dept. of Physics

Description

A b enrichment technique using the long B lifetime has been developed, by which ≅ 600 hadronic events with >65% b purity are obtained. The properties of the associated jets are studied, with comparisons made between them and those in hadronic data in which b quarks make up only 10% of the total, and jets in Monte Carlo events. The distributions in rapidity and multiplicity yield two new determinations of the fragmentation variable z for b hadrons and confirm that the b fragmentation function is hard. We also present the first measurement of the relative strength of the strong interaction coupling of the b quark compared with the average of all flavours. (orig.)

Additional details

Publishing Information

Journal Title
Zeitschrift fuer Physik, C
Journal Volume
42
Journal Issue
1
Series
Z. Phys., C.
Journal Page Range
17-31
ISSN
0170-9739
CODEN
ZPCFD

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
20020997
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANGULAR CORRELATION; ANNIHILATION; BEAUTY PARTICLES; CHARGED PARTICLES; COUPLING CONSTANTS; ELECTRON-POSITRON INTERACTIONS; EXPERIMENTAL DATA; GEV RANGE 10-100; HADRONS; JET MODEL; LIMITING FRAGMENTATION; MULTIPLE PRODUCTION; MULTIPLICITY; PAIR PRODUCTION; PARTICLE RAPIDITY; QUARKS; STRONG INTERACTIONS; TRANSVERSE MOMENTUM
Descriptors DEC
BASIC INTERACTIONS; CORRELATIONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HYPOTHESIS; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LINEAR MOMENTUM; MATHEMATICAL MODELS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; POSTULATED PARTICLES

Optional Information

Contract/Grant/Project number
Contract DE-AC02-76ER000881; Grant CPBP 01.06; INT-83-13994
Collaborations
TASSO Collaboration.