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Title: First observation of the decay $$\bar{B}$$$0\atop{s}$$ → D$$±\atop{s}$$ K and measurement of the relative branching fraction B($$\bar{B}$$$0\atop{s}$$→ D$$±\atop{s}$$ K )/B($$\bar{B}$$$0\atop{s}$$→ D$$+\atop{s}$$ π -).

Abstract

We present the first observation of the decay $$\bar{B}$$$0\atop{s}$$→ D$$±\atop{s}$$ K∓ and measure the relative branching fraction of $$\bar{B}$$$0\atop{s}$$ → D$$±\atop{s}$$ K∓ to $$\bar{B}$$$0\atop{s}$$ → D$$+\atop{s}$$ π -. The measurement of the relative branching fraction is performed by applying a fit in invariant mass and specific ionization to 1.2 fb -1 of D s(φπ)X data collected with the CDF II detector in pp collisions at √ s = 1.96 TeV at the Fermilab Tevatron collider. We measure B $$\bar{B}$$$0\atop{s}$$ → D$$±\atop{s}$$ K∓ /B $$\bar{B}$$$0\atop{s}$$ → D$$+\atop{s}$$ π - = 0.107±0.019(stat)±0.008(sys). The statistical significance of the $$\bar{B}$$$0\atop{s}$$ → D$$±\atop{s}$$ K signal is 7.9σ. To cross-check our analysis method, we also measure B $$\bar{B0}$$→ D +K - /B $$\bar{B0}$$ → D +π - and B $$\bar{B0}$$ → D +*K - /B $$\bar{B0}$$ → D *+π - and verify that our results are in agreement with the world average.

Authors:
 [1]
  1. Univ. of California, Berkeley, CA (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
924534
Report Number(s):
FERMILAB-THESIS-2007-52
DOE Contract Number:
AC02-07CH11359
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Experiment-HEP

Citation Formats

Muelmenstaedt, Johannes. First observation of the decay $\bar{B}$$0\atop{s}$ → D$±\atop{s}$ K∓ and measurement of the relative branching fraction B($\bar{B}$$0\atop{s}$→ D$±\atop{s}$ K∓)/B($\bar{B}$$0\atop{s}$→ D$+\atop{s}$ π-).. United States: N. p., 2007. Web. doi:10.2172/924534.
Muelmenstaedt, Johannes. First observation of the decay $\bar{B}$$0\atop{s}$ → D$±\atop{s}$ K∓ and measurement of the relative branching fraction B($\bar{B}$$0\atop{s}$→ D$±\atop{s}$ K∓)/B($\bar{B}$$0\atop{s}$→ D$+\atop{s}$ π-).. United States. doi:10.2172/924534.
Muelmenstaedt, Johannes. Mon . "First observation of the decay $\bar{B}$$0\atop{s}$ → D$±\atop{s}$ K∓ and measurement of the relative branching fraction B($\bar{B}$$0\atop{s}$→ D$±\atop{s}$ K∓)/B($\bar{B}$$0\atop{s}$→ D$+\atop{s}$ π-).". United States. doi:10.2172/924534. https://www.osti.gov/servlets/purl/924534.
@article{osti_924534,
title = {First observation of the decay $\bar{B}$$0\atop{s}$ → D$±\atop{s}$ K∓ and measurement of the relative branching fraction B($\bar{B}$$0\atop{s}$→ D$±\atop{s}$ K∓)/B($\bar{B}$$0\atop{s}$→ D$+\atop{s}$ π-).},
author = {Muelmenstaedt, Johannes},
abstractNote = {We present the first observation of the decay $\bar{B}$$0\atop{s}$→ D$±\atop{s}$ K∓ and measure the relative branching fraction of $\bar{B}$$0\atop{s}$ → D$±\atop{s}$ K∓ to $\bar{B}$$0\atop{s}$ → D$+\atop{s}$ π-. The measurement of the relative branching fraction is performed by applying a fit in invariant mass and specific ionization to 1.2 fb-1 of Ds(φπ)X data collected with the CDF II detector in pp collisions at √ s = 1.96 TeV at the Fermilab Tevatron collider. We measure B $\bar{B}$$0\atop{s}$ → D$±\atop{s}$ K∓ /B $\bar{B}$$0\atop{s}$ → D$+\atop{s}$ π- = 0.107±0.019(stat)±0.008(sys). The statistical significance of the $\bar{B}$$0\atop{s}$ → D$±\atop{s}$ K∓ signal is 7.9σ. To cross-check our analysis method, we also measure B $\bar{B0}$→ D+K- /B $\bar{B0}$ → D+π- and B $\bar{B0}$ → D+*K- /B $\bar{B0}$ → D*+π- and verify that our results are in agreement with the world average.},
doi = {10.2172/924534},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}

Thesis/Dissertation:
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