Evidence for the charmless annihilation decay mode B(s)(0)→π(+)π(-).
Publication
, Journal Article
Aaltonen, T; Alvarez González, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, JA; Arisawa, T; Artikov, A ...
Published in: Physical review letters
May 2012
We search for annihilation decay modes of neutral b mesons into pairs of charmless charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using a data sample corresponding to 6 fb(-1) of integrated luminosity, we obtain the first evidence for the B(s)(0)→π(+)π(-) decay, with a significance of 3.7σ, and a measured branching ratio B(B(s)(0)→π(+)π(-))=(0.57±0.15(stat)±0.10(syst))×10(-6). A search for the B(0)→K(+)K(-) mode in the same sample yields a significance of 2.0σ, and a central value estimate B(B(0)→K(+)K(-))=(0.23±0.10(stat)±0.10(syst))×10(-6).
Duke Scholars
Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
May 2012
Volume
108
Issue
21
Start / End Page
211803
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences
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Aaltonen, T., Alvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., … CDF Collaboration. (2012). Evidence for the charmless annihilation decay mode B(s)(0)→π(+)π(-). Physical Review Letters, 108(21), 211803. https://doi.org/10.1103/physrevlett.108.211803
Aaltonen, T., B. Alvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, et al. “Evidence for the charmless annihilation decay mode B(s)(0)→π(+)π(-).” Physical Review Letters 108, no. 21 (May 2012): 211803. https://doi.org/10.1103/physrevlett.108.211803.
Aaltonen T, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, et al. Evidence for the charmless annihilation decay mode B(s)(0)→π(+)π(-). Physical review letters. 2012 May;108(21):211803.
Aaltonen, T., et al. “Evidence for the charmless annihilation decay mode B(s)(0)→π(+)π(-).” Physical Review Letters, vol. 108, no. 21, May 2012, p. 211803. Epmc, doi:10.1103/physrevlett.108.211803.
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Evidence for the charmless annihilation decay mode B(s)(0)→π(+)π(-). Physical review letters. 2012 May;108(21):211803.
Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
May 2012
Volume
108
Issue
21
Start / End Page
211803
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences