Measurements of the total and differential cross sections d sigma/dp(T)(B) and d sigma/dy(B) for B+ mesons produced in pp collisions at root s = 7 TeV are presented. The data correspond to an integrated luminosity of 5.8 pb(-1) collected by the CMS experiment operating at the LHC. The exclusive decay B+ -> J/psi K+, with J/psi -> mu(+)mu(-), is used to detect B+ mesons and to measure the production cross section as a function of p(T)(B) and y(B). The total cross section for p(T)(B) > 5 GeV and vertical bar y(B)vertical bar < 2.4 is measured to be 28.1 +/- 2.4 +/- 2.0 +/- 3.1 mu b, where the first uncertainty is statistical, the second is systematic, and the last is from the luminosity measurement.

Measurement of the B+ Production Cross Section in pp Collisions at root s=7 TeV / V., K., A. M., S., A., T., W., A., T., B., M., D., J., E., C., F., M., F., R., F., V. M., G., J., H., S., H., C., H., M., H., N., H., J., H., M., J., G., K., W., K., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 106:(2011), p. 112001. [10.1103/physrevlett.106.112001]

Measurement of the B+ Production Cross Section in pp Collisions at root s=7 TeV

BARONE, Luciano Maria;DEL RE, Daniele;LONGO, Egidio;ORGANTINI, Giovanni;PARAMATTI, Riccardo;RAHATLOU, SHAHRAM;TRACZYK, PIOTR WOJCIECH;SANTANASTASIO, FRANCESCO;
2011

Abstract

Measurements of the total and differential cross sections d sigma/dp(T)(B) and d sigma/dy(B) for B+ mesons produced in pp collisions at root s = 7 TeV are presented. The data correspond to an integrated luminosity of 5.8 pb(-1) collected by the CMS experiment operating at the LHC. The exclusive decay B+ -> J/psi K+, with J/psi -> mu(+)mu(-), is used to detect B+ mesons and to measure the production cross section as a function of p(T)(B) and y(B). The total cross section for p(T)(B) > 5 GeV and vertical bar y(B)vertical bar < 2.4 is measured to be 28.1 +/- 2.4 +/- 2.0 +/- 3.1 mu b, where the first uncertainty is statistical, the second is systematic, and the last is from the luminosity measurement.
2011
heavy quarks; p(p)over-bar collisions; bottom-quark production
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the B+ Production Cross Section in pp Collisions at root s=7 TeV / V., K., A. M., S., A., T., W., A., T., B., M., D., J., E., C., F., M., F., R., F., V. M., G., J., H., S., H., C., H., M., H., N., H., J., H., M., J., G., K., W., K., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 106:(2011), p. 112001. [10.1103/physrevlett.106.112001]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/490987
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