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}$$ → D *+π - and verify that our results are in agreement with the world average.
- Authors:
-
- Univ. of California, Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 924534
- Report Number(s):
- FERMILAB-THESIS-2007-52
- DOE Contract Number:
- AC02-07CH11359
- Resource Type:
- Thesis/Dissertation
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Experiment-HEP
Citation Formats
Muelmenstaedt, Johannes. First observation of the decay $\bar{B}$$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}
}