# Measurement of the $B \to J/\psi X$ inclusive cross-section at the collider detector at Fermilab

### Description

The Collider Detector at Fermilab (CDF) is a multi-purpose detector designed to study proton-antiproton collisions at center-of-mass energies of 1.96 TeV/c{sup 2}. One of the most importatn components of CDF is the silicon tracking detector. A detailed description of the testing and construction of the CDF silicon tracker is presented. Measurements of the tracking efficiency of the completed detector are also provided. Using 36 pb{sup -1} of the J/{psi} data sample collected by CDF between February and October 2002, the inclusive B {yields} J/{psi} X cross-section is measured in p{bar p} interactions at {radical}s = 1.96 TeV/c{sup 2}. The fraction ... continued below

### Creation Information

Waschke, Simon January 1, 2004.

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### Description

The Collider Detector at Fermilab (CDF) is a multi-purpose detector designed to study proton-antiproton collisions at center-of-mass energies of 1.96 TeV/c{sup 2}. One of the most importatn components of CDF is the silicon tracking detector. A detailed description of the testing and construction of the CDF silicon tracker is presented. Measurements of the tracking efficiency of the completed detector are also provided. Using 36 pb{sup -1} of the J/{psi} data sample collected by CDF between February and October 2002, the inclusive B {yields} J/{psi} X cross-section is measured in p{bar p} interactions at {radical}s = 1.96 TeV/c{sup 2}. The fraction of J/{psi} events arising from the decay of b hadrons is extracted using an unbinned maximum likelihood fit to the decay length of the J/{psi} candidates. The p{sub T} dependent differential cross section for inclusive B {yields} J/{psi} X events with rapidity |y| &lt; 0.6 is obtained by combining the B-fraction result with a measurement of the J/{psi} differential cross-section. For 2.0 &lt; p{sub T}(J/{psi}) &lt; 17.0 GeV/c, the integrated B {yields} J/{psi} X cross-section is measured to be {sigma}(J/{psi}, B) {center_dot} {Beta}(J/{psi} {yields} {mu}{mu}) = 16.02 {+-} 0.24(stat){sub -2.20}{sup +2.26}(syst) nb.

### Identifier

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• Report No.: FERMILAB-THESIS-2004-86
• Grant Number: AC02-07CH11359
• DOI: 10.2172/1020299 | External Link
• Office of Scientific & Technical Information Report Number: 1020299

### Collections

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#### Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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### Creation Date

• January 1, 2004

### Added to The UNT Digital Library

• May 19, 2016, 3:16 p.m.

### Description Last Updated

• Aug. 29, 2016, 8:47 p.m.

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Waschke, Simon. Measurement of the $B \to J/\psi X$ inclusive cross-section at the collider detector at Fermilab, thesis or dissertation, January 1, 2004; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc843433/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.