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Aubert, B.
Stanford Linear Accelerator Center (United States). Funding organisation: US Department of Energy (United States)2007
Stanford Linear Accelerator Center (United States). Funding organisation: US Department of Energy (United States)2007
AbstractAbstract
[en] Motivated by the polarization anomaly in the B → φ(1020)K*(892) decay, they extend their search for other K* final states in the decay B0 → φ(1020)K*0 with the K*0 → K+π- invariant mass above 1.6 GeV. The final states considered include the K*(1680)0, K*3(1780)0, K*4(2045)0, and a Kπ spin-zero nonresonant component. They also search for B0 → φ((bar D)0) decay with the same final state. The analysis is based on a sample of about 384 million B(bar B) pairs recorded with the BABAR detector. They place upper limits on the branching fractions Β(B0 → φK*(1680)0) < 3.5 x 10-6, Β(B0 → φK*3(1780)0) < 2.7 x 10-6, Β(B0 → φK*4(2045)0) < 15.3 x 10-6, and Β(B0 → φ(bar D)0) < 11.7 x 10-6 at 90% C.L. The nonresonant contribution is consistent with the measurements in the lower invariant mass range
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Source
SLAC-PUB--12461; AC02-76SF00515; Available from http://www.slac.stanford.edu/cgi-wrap/getdoc/slac-pub-12461.pdf
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Journal Article
Journal
Physical Review. D, Particles, Fields, Gravitation and Cosmology; ISSN 1550-7998;
; (Issue May 2007); vp

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Aubert, B.; Bona, M.; Boutigny, D.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A.; Garra Tico, J.; Grauges, E.; Lopez, L.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Abrams, G. S.; Battaglia, M.; Brown, D. N.
BABAR Collaboration
arXiv e-print [ PDF ]2008
BABAR Collaboration
arXiv e-print [ PDF ]2008
AbstractAbstract
[en] Using 383x106 BB pairs from the BABAR data sample, we report results for branching fractions of six charged B-meson decay modes, where a charged kaon recoils against a charmless resonance decaying to KK* or ηππ final states with mass in the range (1.2-1.8) GeV/c2. We observe a significant enhancement at the low KK* invariant mass which is interpreted as B+→η(1475)K+, find evidence for the decay B+→η(1295)K+, and place upper limits on the decays B+→η(1405)K+, B+→f1(1285)K+, B+→f1(1420)K+, and B+→φ(1680)K+
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(c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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AbstractAbstract
[en] The authors discuss about the nature of f0(400-1200) which authors decompose into three parts, i.e., t-channel ρ meson and f2(1270) meson exchange plus an additional s-channel resonance f0(X). Below 1.2 GeV of ππ invariant mass, t-channel ρ meson exchange can explain the I = 2 ππ S-wave scattering very well. However, the f2(1270) meson exchange must be considered for the ππ invariant mass above 1.2 GeV. With the t-channel ρ meson and f2(1270) meson exchange fixed by the iso-tensor ππ→ ππ S-wave scattering, the authors re-fit the CERN-Muelich (CM) data on ππ scattering to get parameters for the f0(X). The authors find that it is necessary to introduce a broad 0++ resonance with a pole about 1.6 - 1.7 GeV
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Journal Article
Journal
High Energy Physics and Nuclear Physics; ISSN 0254-3052;
; v. 26(4); p. 346-353

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Aubert, B.
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States); BaBar Collaboration. Funding organisation: US Department of Energy (United States)2004
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States); BaBar Collaboration. Funding organisation: US Department of Energy (United States)2004
AbstractAbstract
[en] We present a study of the decay B- --> D*0K*- based on a sample of 86 X 106 Υ (4S) --> B barΒ decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure the branching fraction Β(B- --> D*0K*-) = (8.3+-1.1(stat)+- 1.0(syst)) X 10-4, and the fraction of longitudinal polarization in this decay to be ΓL/Γ = 0.86+-0.06(stat)+-0.03(syst)
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Source
LBNL--54121; BABAR-PUB--03-24; SLAC-PUB--10140; AC03-76SF00098
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Journal Article
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Suzuki, Mahiko
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States). Funding organisation: USDOE Director. Office of Science. Office of High Energy Physics (United States); National Science Foundation Grant PHY-0098840 (United States)2005
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States). Funding organisation: USDOE Director. Office of Science. Office of High Energy Physics (United States); National Science Foundation Grant PHY-0098840 (United States)2005
AbstractAbstract
[en] It has been argued that the mystery boson X(3872) is a molecular state consisting of primarily D0(bar D)*0 + (bar D)0D*0. In contrast, apparent puzzles and potential difficulties have been pointed out for the charmonium assignment of X(3872). They examine several aspects of these alternatives by semi-quantitative methods since quantitatively accurate results are often hard to reach on them. they point out that some of the observed properties of X(3872), in particular, the binding and the production rates are incompatible with the molecule interpretation. Despite puzzles and obstacles, X(3872) may fit more likely to the excited 3P1 charmonium than to the molecule after the mixing of c(bar c) with D(bar D)* + (bar D)D* is taken into account
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Source
LBNL--58724; BNR: KA1401020; AC02-05CH11231; Also available from OSTI as DE00889796; PURL: https://www.osti.gov/servlets/purl/889796-VbyU6t/; Journal Publication Date: 2005
Record Type
Journal Article
Journal
Physical Review. D, Particles Fields; ISSN 0556-2821;
; v. 72; vp

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Aubert, B.
Stanford Linear Accelerator Center, Menlo Park, CA (United States). Funding organisation: USDOE Office of Science (United States)2004
Stanford Linear Accelerator Center, Menlo Park, CA (United States). Funding organisation: USDOE Office of Science (United States)2004
AbstractAbstract
[en] The authors present a search for B decays to charmless final states involving charged or neutral a0 mesons. The data sample corresponds to 89 million B(bar B) pairs collected with the BABAR detector operating at the PEP-II asymmetric-energy B Factory at SLAC. They find no significant signals and determine the following 90% C.L. upper limits: Β(B0 → a0- π+) < 5.1 x 10-6, Β(B0 → a0-K+) < 2.1 x 10-6 Β(B- → a00(bar K)0) < 3.9 x 10-6, Β(B+ → a00π+) < 5.8 x 10-6, Β(B+ → a00K+) < 2.5 x 10-6, and Β(B0 → a00K0) < 7.8 x 10-6, where in all cases Β indicates the product of branching fractions for B → a0X and a0 → ηπ, where X indicates K or π
Primary Subject
Source
9 Jul 2004; 7 p; AC03-76SF00515; Available from PURL: https://www.osti.gov/servlets/purl/827329-XHw8HR/native/
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Report
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Schune, Marie-Helene
Stanford Linear Accelerator Center, Menlo Park, CA (United States). Funding organisation: USDOE Office of Energy Research (ER) (United States)2000
Stanford Linear Accelerator Center, Menlo Park, CA (United States). Funding organisation: USDOE Office of Energy Research (ER) (United States)2000
AbstractAbstract
[en] The BABAR experiment has been taking data since about one year. Physics results, complementary to those described in [1], are presented: various measurements of the neutral and charged B mesons lifetimes, the B0 mixing frequency, the mistag fractions, and the B → Ds(*)X and B0 → Ds(*)+ D*- branching ratios. Some prospects for the close future are shown. All the numbers given here are preliminary
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30 Nov 2000; [vp.]; AC03-76SF00515; Available from PURL: https://www.osti.gov/servlets/purl/784824-50L2pN/native/
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Aubert, B.
Stanford Linear Accelerator Center, Menlo Park, CA (United States); BABAR Collaboration. Funding organisation: USDOE Office of Energy Research (ER) (United States)2002
Stanford Linear Accelerator Center, Menlo Park, CA (United States); BABAR Collaboration. Funding organisation: USDOE Office of Energy Research (ER) (United States)2002
AbstractAbstract
[en] We present a measurement of time-dependent CP asymmetries and an updated determination of the CP-odd fraction in the decay B0 → D*+ D*-. The measurements are derived from a data sample of 88 x 106 B(bar B) pairs collected by the BABAR detector at the PEP-II energy asymmetric B Factory at SLAC. All results are preliminary
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26 Jul 2002; 19 p; AC03-76SF00515; Available from PURL: https://www.osti.gov/servlets/purl/799951-AOjpvi/native/
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Antipin, Oleg; Valencia, G., E-mail: oaanti02@iastate.edu, E-mail: valencia@iastate.edu
arXiv e-print [ PDF ]2007
arXiv e-print [ PDF ]2007
AbstractAbstract
[en] The BaBar Collaboration has recently reported the observation of the decay mode B-→Ds+K-π-. We investigate the role played by the D** resonances in this decay mode using HQET. Although these resonances cannot appear as physical intermediate states in this reaction, their mass is very close to the Ds+K- production threshold and may, therefore, play a prominent role. We pursue this possibility to extract information on the properties of the strong D**DM couplings. As a byproduct of this analysis we point out that future super-B factories may be able to measure the D00D*γ radiative coupling through the reaction B-→D*γπ-
Primary Subject
Source
S0370-2693(07)00220-1; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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MacFarlane, David B
Stanford Linear Accelerator Center, Menlo Park, CA (United States). Funding organisation: USDOE Office of Science (United States)2003
Stanford Linear Accelerator Center, Menlo Park, CA (United States). Funding organisation: USDOE Office of Science (United States)2003
AbstractAbstract
[en] Using the CLEO-II data set we have searched for the Cabibbo-suppressed decays B0 → D*+D*-. For the decay B0 → D*+D*-, we observe one candidate signal event, with an expected background of 0.022 ± 0.011 events. This yield corresponds to a branching fraction of Β(B0 → D*+D*-) = (5.3-3.7+7.1(stat) ± 1.0(syst)) x 10-4 and an upper limit of Β(B0 → D*+D-) < 2.2 x 10-3 at the 90% CL. For B0 → D*±D± and B0 → D+D-, no significant excess of signal above the expected background level is seen, and we calculate the 90% CL upper limits on the branching fractions to be Β(B0 → D*±D±) < 1.8 x 10-3 and B(B0 → D+D-) < 1.2 x 10-3
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9 May 2003; 12 p; AC--03-76SF00515; Available from PURL: https://www.osti.gov/servlets/purl/813087-35PbSb/native/
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