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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
GP Chen, [......],
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmerspeig-Toeller,
SL Wu,
Z Yu,
H Zobernig,
TMB Kordich,
H Neal
[show abstract]
[hide abstract]
ABSTRACT: We report branching fraction measurements for exclusive decays of charged and neutral B mesons into two-body final states containing a charmonium meson. We use a sample of 22.72±0.36 million BB̅ events collected between October 1999 and October 2000 with the BABAR detector at the PEP-II storage rings at the Stanford Linear Accelerator Center. The charmonium mesons considered here are J/ψ, ψ(2S), and χc1, and the light meson in the decay is either a K, K*, or π0.
Physical Review D 02/2013; 65. · 4.56 Impact Factor
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
GP Chen, [......],
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
H Zobernig,
TMB Kordich,
H Neal
[show abstract]
[hide abstract]
ABSTRACT: The B0 and B+ meson lifetimes have been measured in e+e- annihilation data collected in 1999 and 2000 with the BABAR detector at center-of-mass energies near the ϒ(4S) resonance. Events are selected in which one B meson is fully reconstructed in a hadronic final state while the second B meson is reconstructed inclusively. A combined fit to the B0 and the B+ decay time difference distributions yields τB0 = 1.546±0.032(stat)±0.022(syst) ps, τB+ = 1.673±0.032(stat)±0.023(syst) ps, and τB+/τB0 = 1.082±0.026(stat)±0.012(syst).
Physical Review Letters 02/2013; 87(20). · 7.37 Impact Factor
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
GP Chen, [......],
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
H Zobernig,
TMB Kordich,
H Neal,
BABAR Collaboration
[show abstract]
[hide abstract]
ABSTRACT: We report the result of a search for the rare decay B0→γγ in 426 fb-1 of data, corresponding to 226×106 B0B̅ 0 pairs, collected on the Υ(4S) resonance at the PEP-II asymmetric-energy e+e- collider using the BABAR detector. We use a maximum likelihood fit to extract the signal yield and observe 21-12+13 signal events with a statistical significance of 1.8σ. This corresponds to a branching fraction B(B0→γγ)=(1.7±1.1(stat.)±0.2(syst.))×10-7. Based on this result, we set a 90% confidence level upper limit of B(B0→γγ)<3.2×10-7.
Physical Review D. 01/2011; 83:11.
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Zghiche,
A Palano, [......],
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
J Wu,
SL Wu,
Z Yu,
H Neal,
BABAR Collaboration
Physical Review Letters 01/2002; 89. · 7.37 Impact Factor
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Zghiche,
A Palano, [......],
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
J Wu,
SL Wu,
Z Yu,
H Neal,
BABAR Collaboration
Physical Review Letters 01/2002; 89. · 7.37 Impact Factor
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
A Pompili, [......],
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
TMB Kordich,
H Neal,
BABAR Collaboration
[show abstract]
[hide abstract]
ABSTRACT: We measure the branching fractions of the ψ(2S) meson to the leptonic final states e+e- and μ+μ- relative to that for ψ(2S)→J/ψπ+π-. The method uses ψ(2S) mesons produced in the decay of B mesons at the Υ(4S) resonance in a data sample collected with the BABAR detector at the Stanford Linear Accelerator Center. Using previous measurements for the ψ(2S)→J/ψπ+π- branching fraction, we determine the e+e-and μ+μ- branching fractions to be 0.0078±0.0009±0.0008 and 0.0067±0.0008±0.0007, respectively.
Physical Review D 01/2001; 65. · 4.56 Impact Factor
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
GP Chen, [......],
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
H Zobernig,
TMB Kordich,
H Neal,
BABAR Collaboration
[show abstract]
[hide abstract]
ABSTRACT: We present a limit on the branching fraction for the decay B0→γγ using data collected at the ϒ(4S) resonance with the BABAR detector at the PEP-II asymmetric energy e+e- collider. Based on the observation of one event in the signal region, out of a sample of 21.3×106 e+e-→ϒ(4S)→BB̅ decays, we establish an upper limit on the branching fraction of B(B0→γγ)<1.7×10-6 at the 90% confidence level. This result substantially improves upon existing limits.
Physical Review Letters 01/2001; 87. · 7.37 Impact Factor
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
GP Chen, [......],
W Orejudos,
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
H Zobernig,
BABAR Collaboration
[show abstract]
[hide abstract]
ABSTRACT: We have observed the decays B→φK and φK* in a sample of over 45 million B mesons collected with the BABAR detector at the PEP-II collider. The measured branching fractions are B(B+→φK+) = (7.7-1.4+1.6±0.8)×10-6, B(B0→φK0) = (8.1-2.5+3.1±0.8)×10-6, B(B+→φK*+) = (9.7-3.4+4.2±1.7)×10-6, and B(B0→φK*0) = (8.7-2.1+2.5±1.1)×10-6. We also report the upper limit B(B+→φπ+)<1.4×10-6 ( 90% C.L.).
Physical Review Letters 01/2001; 87:7. · 7.37 Impact Factor
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C. Adloff,
Y Karyotakis,
J Repond,
A Brandt,
H Brown,
K De,
C. Medina,
J Smith,
J Li,
M Sosebee, [......],
I Kim,
T Lee,
J Park,
J Sung,
S Itoh,
K. Kotera,
M Nishiyama,
T Takeshita,
S. Weber,
C Zeitnitz
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
A Pompili, [......],
R Liu,
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
TMB Kordich,
H Neal
Michael Williams.
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B Aubert,
A Bazan,
A Boucham,
D Boutigny,
I De Bonis,
J Favier,
JM Gaillard,
A Jeremie,
Y Karyotakis,
T Le Flour, [......],
W Orejudos,
Y Pan,
R Prepost,
IJ Scott,
J Walsh,
SL Wu,
Z Yu,
H Zobernig,
TB Moore,
H Neal
Michael Williams.
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JA Ballin,
JP Crooks,
PD Dauncey,
B Levin,
M Lynch,
A Magnan,
Y Mikami,
O. Miller,
M. Noy,
V. Rajovic,
M Stanitzki,
KD Stefanov,
R Turchetta,
M Tyndel,
EG Villani, NK Watson,
JA Wilson
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S Schael,
R Barate,
R Bruneliere,
I De Bonis,
D Decamp,
C Goy,
S Jezequel,
JP Lees,
F Martin,
E Merle, [......],
L Zivkovic,
S. Heinemeyer,
A. Pilaftsis,
G. Weiglein,
LEP Collaboration,
ALEPH Collaboration,
DELPHI Collaboration,
L3 Collaboration,
OPAL Collaboration,
LEP Working Grp Higgs Boson Search
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S Schael,
R Barate,
R Bruneliere,
D Buskulic,
I De Bonis,
D Decamp,
P Ghez,
C Goy,
S Jezequel,
JP Lees, [......],
RK Yamamoto,
XQ Yang,
J Yashima,
SJ Yellin,
CC Young,
H Yuta,
G Zapalac,
RW Zdarko,
C Zeitlin,
J Zhou
Michael Williams.
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
A Pompili, [......],
R Liu,
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
TMB Kordich,
H Neal
Michael Williams.
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
GP Chen, [......],
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
H Zobernig,
TMB Kordich,
H Neal
Michael Williams.
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B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
GP Chen, [......],
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
H Zobernig,
TMB Kordich,
H Neal
Michael Williams.
-
B Aubert,
D Boutigny,
I De Bonis,
JM Gaillard,
K Jeremie,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano, [......],
Y Pan,
R Prepost,
IJ Scott,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
H Zobernig,
TMB Kordich,
TB Moore,
H Neal
Michael Williams.
-
B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
GP Chen, [......],
J Nielsen,
W Orejudos,
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
H Zobernig
Michael Williams.
-
B Aubert,
D Boutigny,
JM Gaillard,
A Hicheur,
Y Karyotakis,
JP Lees,
P Robbe,
V Tisserand,
A Palano,
GP Chen, [......],
Y Pan,
R Prepost,
IJ Scott,
SJ Sekula,
JH von Wimmersperg-Toeller,
SL Wu,
Z Yu,
H Zobernig,
TMB Kordich,
H Neal
Michael Williams.