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BABAR Collaboration (Lees, J.P. et al); Martinez-Vidal, F.; Oyanguren, A. |
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Title |
Dalitz plot analyses of J / psi -> pi(+) pi(-) pi(0), J / psi -> K+ K- pi(0), and J / psi -> (KsK +/-)-K-0 pi(-/+) produced via e (+) e (-) annihilation with initial-state radiation |
Type |
Journal Article |
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Year |
2017 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
95 |
Issue |
7 |
Pages  |
072007 - 19pp |
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Abstract |
We study the processes e(+)e(-) -> gamma ISRJ (/) (psi), where J / psi pi(+)pi(-) pi(0), J / psi -> K+K-pi(0), and J / psi -> (KSK +/-)-K-0 pi(-/+) using a data sample of 519 fb(-1) recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e(+) e(-) collider at center-of-mass energies at and near the Y(nS) (n = 2, 3, 4) resonances. We measure the ratio of branching fractions R-1 = B(J / psi -> K+K-pi(0))/B(J / psi ->pi(+)pi(-)pi(0)) and R-2 = B(J / psi -> K-S(0) K-+/- p(-/+))/B(J / psi ->pi(+)pi(-)pi(0)). We perform Dalitz plot analyses of the three J / psi decay modes and measure fractions for resonances contributing to the decays. We also analyze the J /psi -> pi(+)pi(-)pi(0) decay using the Veneziano model. We observe structures compatible with the presence of rho(1450) in all three J / psi decay modes and measure the relative branching fraction: R(rho(1450)) = B(rho(1450)-> K+K-)/B(rho(1450)->pi(+)pi(-)) = 0.307 +/- 0.084(stat) +/- 0.082(sys). |
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Address |
[Lees, J. P.; Poireau, V.; Tisserand, V.] Univ Savoie, Lab Annecy Le Vieux Phys Particules LAPP, CNRS IN2P3, F-74941 Annecy Le Vieux, France |
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Amer Physical Soc |
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English |
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ISSN |
2470-0010 |
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Notes |
WOS:000399945200002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
3103 |
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Author |
BABAR Collaboration (Lees, J.P. et al); Lopez-March, N.; Martinez-Vidal, F.; Oyanguren, A. |
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Title |
Searches for rare or forbidden semileptonic charm decays |
Type |
Journal Article |
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Year |
2011 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
84 |
Issue |
7 |
Pages |
072006 - 13pp |
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Abstract |
We present searches for rare or forbidden charm decays of the form X(c)(+) -> h(+/-)l(+/-)l((l)+), where X(c)(+) is a charm hadron (D(+), D(s)(+), or A(c)(+)), h +/- is a pion, kaon, or proton, and l((l)+/-) is an electron or muon. The analysis is based on 384 fb(-1) of e(+)e(-) annihilation data collected at or close to the gamma(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the 35 decay modes that are investigated. We establish 90% confidence-level upper limits on the branching fractions between 1 x 10(-6) and 44 x 10(-6) depending on the channel. In most cases, these results represent either the first limits or significant improvements on existing limits for the decay modes studied. |
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Address |
[Lees, JP; Poireau, V; Tisserand, V] Univ Savoie, CNRS IN2P3, Lab Annecy Le Vieux Phys Particules LAPP, F-74941 Annecy Le Vieux, France |
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Amer Physical Soc |
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English |
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Abbreviated Series Title |
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ISSN |
1550-7998 |
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Notes |
WOS:000296887600003 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ elepoucu @ |
Serial |
797 |
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BABAR Collaboration (Lees, J.P. et al); Martinez-Vidal, F.; Oyanguren, A.; Villanueva-Perez, P. |
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Title |
Measurement of the B+ -> omega l(+) nu branching fraction with semileptonically tagged B mesons |
Type |
Journal Article |
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Year |
2013 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
88 |
Issue |
7 |
Pages |
072006 - 8pp |
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Abstract |
We report a measurement of the branching fraction of the exclusive charmless semileptonic decay B+ -> omega l(+) nu, where l is either an electron or amuon. We use samples of B+ mesons tagged by a reconstructed charmed semileptonic decay of the other B meson in the event. The measurement is based on a data set of 426.1 fb(-1) of e(+)e(-) collisions at a center-of-mass energy of 10.58 GeV recorded with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage rings. We measure a branching fraction of B(B+ -> omega l(+) nu) = (1.35 +/- 0.21 +/- 0.11) x 10(-4), where the uncertainties are statistical and systematic, respectively. We also present measurements of the partial branching fractions in three bins of q(2), the invariant-mass squared of the lepton-neutrino system, and we compare them to theoretical predictions of the form factors. |
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Address |
[Lees, J. P.; Poireau, V.; Tisserand, V.] Univ Savoie, Lab Annecy Le Vieux Phys Particules LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France, Email: nagel@mpp.mpg.de |
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Amer Physical Soc |
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English |
Summary Language |
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Series Volume |
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ISSN |
1550-7998 |
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Notes |
WOS:000326099800002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1631 |
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Author |
BABAR Collaboration (Lees, J.P. et al); Martinez-Vidal, F.; Oyanguren, A. |
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Title |
B-0 meson decays to rho K-0*(0), f(0)K*(0), and rho K-*(+), including higher K* resonances |
Type |
Journal Article |
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Year |
2012 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
85 |
Issue |
7 |
Pages |
072005 - 16pp |
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Keywords |
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Abstract |
We present branching fraction measurements for the decays B-0 -> rho K-0*(0), B-0 -> f(0)K*(0), and B-0 -> rho K-*(+), where K* is an S-wave (K pi)*(0) or a K*(892) meson; we also measure B-0 -> f(0)K*(2)(1430)(0). For the K*(892) channels, we report measurements of longitudinal polarization fractions (for rho final states) and direct CP violation asymmetries. These results are obtained from a sample of (471.0 +/- 2.8) X 10(6) B (B) over bar pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at the SLAC National Accelerator Laboratory. We observe rho K-0*(892)(0), rho(0)(K pi)*(0)(0), f(0)K*(892)(0), and rho K-*(892)(+) with greater than 5 sigma significance, including systematics. We report first evidence for f(0)(K pi)*(0)(0) and f(0)K*(2)(1430)(0), and place an upper limit on rho(-)(K pi)*(+)(0). Our results in the K*(892) channels are consistent with no direct CP violation. |
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Address |
[Lees, J. P.; Poireau, V.; Tisserand, V.] Univ Savoie, LAPP, CNRS IN2P3, F-74941 Annecy Le Vieux, France |
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Corporate Author |
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Thesis |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Editor |
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English |
Summary Language |
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Original Title |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1550-7998 |
ISBN |
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Expedition |
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Conference |
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Notes |
WOS:000303310000003 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
991 |
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Author |
BABAR Collaboration (Lees, J.P. et al); Lopez-March, N.; Martinez-Vidal, F.; Oyanguren, A. |
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Title |
Measurement of the mass and width of the D_s1 (2536)+ meson |
Type |
Journal Article |
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Year |
2011 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
83 |
Issue |
7 |
Pages |
072003 - 14pp |
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Keywords |
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Abstract |
The decay width and mass of the D-s1(2536)(+) meson are measured via the decay channel D-s1(+) -> (D*+KS0) using 385 fb(-1) of data recorded with the BABAR detector in the vicinity of the Gamma(4S) resonance at the PEP-II asymmetric-energy electron-positron collider. The result for the decay width is Gamma(D-s1(+)) = 92 +/- 0.03(stat.) +/- 0.04(syst.) MeV. For the mass, a value of m(D-s1(+)) = 2535.08 +/- 0.01(stat.) +/- 0.15(syst.) MeV/c(2) is obtained. The mass difference between the D-s1(+) and the D*+ is measured to be m(D-s1(+)) – m(D*+) = 524.83 +/- 0.01(stat.) +/- 0.04(syst.) MeV/c(2), representing a significant improvement compared to the current world average. The unnatural spin-parity assignment for the D-s1(+) meson is confirmed. |
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Address |
[Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.] Univ Savoie, CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules LAPP, F-74941 Annecy Le Vieux, France |
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Corporate Author |
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Thesis |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Editor |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1550-7998 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
ISI:000290109300001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
613 |
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