## Observation of $B^0_s \to K^{+} K^{-}$ and Measurements of Branching Fractions of Charmless Two-body Decays of $B^0$ and $B^0_{s}$ Mesons in $\bar{p} p$ Collisions at $\sqrt{s}$ = 1.96-TeV

Publication
, Journal Article

Abulencia; A; others

Published in: Phys. Rev. Lett.

2006

We search for decays of the type B(s)0-->h+h[prime]- (where h,h[prime]=K or pi) in 180 pb-1 of [overline p]p collisions collected at the Tevatron by the upgraded Collider Detector at Fermilab. We report the first observation of the new mode Bs0-->K+K- with a yield of 236$\pm$32 events, corresponding to (fs/fd)?[script B](Bs0-->K+K-)/[script B](B0-->K+pi-)=0.46$\pm$0.08(stat)$\pm$0.07(syst), where fs/fd is the ratio of production fractions of Bs0 and B0. We find results in agreement with world averages for the B0 modes, and set the following new limits at 90\% C.L.: [script B](Bs0-->K-pi+)s0-->pi+pi-)

### Duke Scholars

## Published In

Phys. Rev. Lett.

## Publication Date

2006

## Volume

97

## Start / End Page

211802

## Related Subject Headings

- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences

### Citation

APA

Chicago

ICMJE

MLA

NLM

Abulencia, A, & others. (2006). Observation of $B^0_s \to K^{+} K^{-}$ and Measurements of Branching Fractions of Charmless Two-body Decays of $B^0$ and $B^0_{s}$ Mesons in $\bar{p} p$ Collisions at $\sqrt{s}$ = 1.96-TeV.

*Phys. Rev. Lett.*,*97*, 211802.Abulencia, A, and others. “Observation of $B^0_s \to K^{+} K^{-}$ and Measurements of Branching Fractions of Charmless Two-body Decays of $B^0$ and $B^0_{s}$ Mesons in $\bar{p} p$ Collisions at $\sqrt{s}$ = 1.96-TeV.”

*Phys. Rev. Lett.*97 (2006): 211802.Abulencia, A, others. Observation of $B^0_s \to K^{+} K^{-}$ and Measurements of Branching Fractions of Charmless Two-body Decays of $B^0$ and $B^0_{s}$ Mesons in $\bar{p} p$ Collisions at $\sqrt{s}$ = 1.96-TeV. Phys Rev Lett. 2006;97:211802.

Abulencia, et al. “Observation of $B^0_s \to K^{+} K^{-}$ and Measurements of Branching Fractions of Charmless Two-body Decays of $B^0$ and $B^0_{s}$ Mesons in $\bar{p} p$ Collisions at $\sqrt{s}$ = 1.96-TeV.”

*Phys. Rev. Lett.*, vol. 97, 2006, p. 211802.Abulencia, A, others. Observation of $B^0_s \to K^{+} K^{-}$ and Measurements of Branching Fractions of Charmless Two-body Decays of $B^0$ and $B^0_{s}$ Mesons in $\bar{p} p$ Collisions at $\sqrt{s}$ = 1.96-TeV. Phys Rev Lett. 2006;97:211802.

## Published In

Phys. Rev. Lett.

## Publication Date

2006

## Volume

97

## Start / End Page

211802

## Related Subject Headings

- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences