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Study of the decay D(s)(+)-> K(+)K(-)e(+)v(e)

Abstract:

Using 214fb-1 of data recorded by the BABAR detector at the PEPII electron-positron collider, we study the decay Ds+→K+K-e+νe. Except for a small S-wave contribution, the events with K+K- masses in the range 1.01-1.03GeV/c2 correspond to mesons. For Ds+→ e+νe decays, we measure the relative normalization of the Lorentz invariant form factors at q2=0, rV=V(0)/A1(0)=1.849±0.060±0.095, r2=A2(0)/A1(0)=0.763±0. 071±0.065 and the pole mass of the axial-vector form factors mA=(2.28-0.18+0.23±0.18)Ge...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.78.051101

Authors


Karyotakis, Y More by this author
Poireau, V More by this author
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Journal:
PHYSICAL REVIEW D
Volume:
78
Issue:
5
Publication date:
2008-09-05
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:2272f41a-1546-48b6-9d88-58a7059a3571
Source identifiers:
211267
Local pid:
pubs:211267

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