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Title: The Cross-Section for the Production of $$b \bar{b}$$ Pairs in the $$p\bar{p}$$ Collisions at $$\sqrt{s}$$ = 1.8-TeV

Abstract

The cross section for the inclusive production of $$b\bar{b}$$ pairs in proton-antiproton collisions at a center-of-mass energy of 1.8 TeV, as measured by the Collider Detector at Fermilab (CDF) during the 1988-1989 experimental run, is presented. The production of bottom quark pairs is identified through the dual semileptonic decay mode, in which one quark produces an electron, and the other a muon. Background from cascade decays of single $b$ quarks is removed by requiring the invariant mass of the $$e\mu$$. pair be greater than the mass of the $b$. The $$b\bar{b}$$ signal is separated statistically from the remaining physics background, $$c\bar{c}$$ production, by fitting the lepton $$P^{rel}_\tau$$ distributions with normalized distributions obtained from Monte Carlo simulations of $b$ and $c$ decays. The resulting cross section, expressed in terms of the $b$ $$P_{\tau}$$ thresholds, is found to be a factor of two higher than the prediction of Quantum Chromodynamics.

Authors:
 [1]
  1. Brandeis Univ., Waltham, MA (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1372839
Report Number(s):
FERMILAB-THESIS-1994-33; UMI-94-31203
384392
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Mattingly, Robert B. The Cross-Section for the Production of $b \bar{b}$ Pairs in the $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.8-TeV. United States: N. p., 1994. Web. doi:10.2172/1372839.
Mattingly, Robert B. The Cross-Section for the Production of $b \bar{b}$ Pairs in the $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.8-TeV. United States. doi:10.2172/1372839.
Mattingly, Robert B. Tue . "The Cross-Section for the Production of $b \bar{b}$ Pairs in the $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.8-TeV". United States. doi:10.2172/1372839. https://www.osti.gov/servlets/purl/1372839.
@article{osti_1372839,
title = {The Cross-Section for the Production of $b \bar{b}$ Pairs in the $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.8-TeV},
author = {Mattingly, Robert B.},
abstractNote = {The cross section for the inclusive production of $b\bar{b}$ pairs in proton-antiproton collisions at a center-of-mass energy of 1.8 TeV, as measured by the Collider Detector at Fermilab (CDF) during the 1988-1989 experimental run, is presented. The production of bottom quark pairs is identified through the dual semileptonic decay mode, in which one quark produces an electron, and the other a muon. Background from cascade decays of single $b$ quarks is removed by requiring the invariant mass of the $e\mu$. pair be greater than the mass of the $b$. The $b\bar{b}$ signal is separated statistically from the remaining physics background, $c\bar{c}$ production, by fitting the lepton $P^{rel}_\tau$ distributions with normalized distributions obtained from Monte Carlo simulations of $b$ and $c$ decays. The resulting cross section, expressed in terms of the $b$ $P_{\tau}$ thresholds, is found to be a factor of two higher than the prediction of Quantum Chromodynamics.},
doi = {10.2172/1372839},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {3}
}

Thesis/Dissertation:
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