Study of b$$\bar{b}$$ production in e+e- annihilation at √s = 29 GeV with the aid of neural networks
- Univ. of California, Berkeley, CA (United States). Dept. of Physics
The author presents a measurement of σ(b$$\bar{b}$$)/σ(q$$\bar{q}$$) in the annihilation process e+e- → q$$\bar{q}$$ → hadrons at √s = 29 GeV. The analysis is based on 66 pb-1 of data collected between 1984 and 1986 with the TPC/2γ detector at PEP. To identify bottom events, he uses a neural network with inputs that are computed from the 3-momenta of all of the observed charged hadrons in each event. He also presents a study of bias in techniques for measuring inclusive π±, K±, and p/$$\bar{p}$$ production in the annihilation process e+e- → b$$\bar{b}$$ → hadrons at √s = 29 GeV, using a neural network to identify bottom-quark jets. In this study, charged particles are identified by a simultaneous measurement of momentum and ionization energy loss (dE/dx).
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 10107431
- Report Number(s):
- LBL-36353; ON: DE95004691; TRN: AHC29505%%138
- Resource Relation:
- Other Information: TH: Thesis (Ph.D.); PBD: Nov 1994
- Country of Publication:
- United States
- Language:
- English
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