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Measurements of the branching fractions for B(s)→D (s)πππ and Λb0→Λc+πππ

Abstract:

Branching fractions of the decays HbHcπ -π+π- relative to Hb→ Hcπ- are presented, where Hb (Hc) represents B̄0 (D+), B- (D0), B̄s0 (Ds+), and Λb0 (Λc+). The measurements are performed with the LHCb detector using 35pb-1 of data collected at √s=7TeV. The ratios of branching fractions are measured to be [B(B̄0→D +π-π+π-)]/[B(B ̄0→D+π-)]=2.38±0. 11±0.21, [B(B-→D0π -π+π-)]/[B(B -→D0π-)]=1.27±0.06±0.11, [B(B̄s0→Ds+π-π+π-)]/ [B(B̄s0→Ds+π-)]=2.01±0.37±0.20, [B(Λb0→Λc+π-π+π-)]/ [B(Λb0→Λc+π-)]=1.43±0....

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Publisher copy:
10.1103/PhysRevD.84.092001

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Journal:
Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume:
84
Issue:
9
Publication date:
2011-11-02
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:6f15b652-7a18-4fbc-b011-7177832cb33e
Source identifiers:
221485
Local pid:
pubs:221485
Language:
English

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