Measurement of CP Asymmetries and Branching Fractions in Charmless Two-Body B-Meson Decays to Pions and Kaons

We present improved measurements of CP-violation parameters in the decays $B^0 \to \pi^+ \pi^-$, $B^0 \to K^+ \pi^-$, and $B^0 \to \pi^0 \pi^0$, and of the branching fractions for $B^0 \to \pi^0 \pi^0$ and $B^0 \to K^0 \pi^0$. The results are obtained with the full data set collected at the $\Upsilon(4S)$ resonance by the BABAR experiment at the PEP-II asymmetric-energy $B$ factory at the SLAC National Accelerator Laboratory, corresponding to $467 \pm 5$ million $B\bar B$ pairs. We find the CP-violation parameter values and branching fractions $S_{\pi^+\pi^-} = -0.68 \pm 0.10 \pm 0.03, C_{\pi^+\pi^-} = -0.25 \pm 0.08 \pm 0.02, A_{K^-\pi^+} = -0.107 \pm 0.016 ^{+0.006}_{-0.004}, C_{\pi^0\pi^0} = -0.43 \pm 0.26 \pm 0.05, Br(B^0 \to \pi^0 \pi^0) = (1.83 \pm 0.21 \pm 0.13) \times 10^{-6}, Br(B^0 \to K^0 \pi^0) = (10.1 \pm 0.6 \pm 0.4) \times 10^{-6},$ where in each case, the first uncertainties are statistical and the second are systematic. We observe CP violation with a significance of 6.7 standard deviations for $B^0 \to\pi^+\pi^-$ and 6.1 standard deviations for $B^0 \to K^+ \pi^-$, including systematic uncertainties. Constraints on the Unitarity Triangle angle $\alpha$ are determined from the isospin relations among the $B \to \pi\pi$ rates and asymmetries. Considering only the solution preferred by the Standard Model, we find $\alpha$ to be in the range $[71^\circ,109^\circ]$ at the 68% confidence level.Comment: 18 pages, 11 postscript figures, submitted to Phys. Rev.

Nutrimetabolomics: An Integrative Action for Metabolomic Analyses in Human Nutritional Studies

The life sciences are currently being transformed by an unprecedented wave of developments in molecular analysis, which include important advances in instrumental analysis as well as biocomputing. In light of the central role played by metabolism in nutrition, metabolomics is rapidly being established as a key analytical tool in human nutritional studies. Consequently, an increasing number of nutritionists integrate metabolomics into their study designs. Within this dynamic landscape, the potential of nutritional metabolomics (nutrimetabolomics) to be translated into a science, which can impact on health policies, still needs to be realized. A key element to reach this goal is the ability of the research community to join, to collectively make the best use of the potential offered by nutritional metabolomics. This article, therefore, provides a methodological description of nutritional metabolomics that reflects on the state-of-the-art techniques used in the laboratories of the Food Biomarker Alliance (funded by the European Joint Programming Initiative “A Healthy Diet for a Healthy Life” (JPI HDHL)) as well as points of reflections to harmonize this field. It is not intended to be exhaustive but rather to present a pragmatic guidance on metabolomic methodologies, providing readers with useful “tips and tricks” along the analytical workflow

Search for Rare or Forbidden Decays of the D^{0} Meson

We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type D^{0}\u2192h^{'-}h^{-}\u2113^{'+}\u2113^{+} and D^{0}\u2192h^{'-}h^{+}\u2113^{'\ub1}\u2113^{ 13}, where h and h^{'} represent a K or \u3c0 meson and \u2113 and \u2113^{'} an electron or muon. The analysis is based on 468\u2009\u2009fb^{-1} of e^{+}e^{-} annihilation data collected at or close to the \u3d2(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the twelve modes, and we establish 90% confidence level upper limits on the branching fractions in the range (1.0-30.6) 710^{-7}. The limits are between 1 and 3 orders of magnitude more stringent than previous measurements

Erratum: Branching fraction measurements of the color-suppressed decays B[over \uaf]^{0} to D^{(*)0}\u3c0^{0}, D^{(*)0}\u3b7, D^{(*)0}\u3c9, and D^{(*)0}\u3b7^{\u2032} and measurement of the polarization in the decay B[over \uaf]^{0}\u2192D^{*0}\u3c9 [Phys. Rev. D 84, 112007 (2011)]

none387We report updated branching fraction measurements of the color-suppressed decays B̅ 0→D0π0, D*0π0, D0η, D*0η, D0ω, D*0ω, D0η′, and D*0η′. We measure the branching fractions (×10-4): B(B̅ 0→D0π0)=2.69±0.09±0.13, B(B̅ 0→D*0π0)=3.05±0.14±0.28, B(B̅ 0→D0η)=2.53±0.09±0.11, B(B̅ 0→D*0η)=2.69±0.14±0.23, B(B̅ 0→D0ω)=2.57±0.11±0.14, B(B̅ 0→D*0ω)=4.55±0.24±0.39, B(B̅ 0→D0η′)=1.48±0.13±0.07, and B(B̅ 0→D*0η′)=1.49±0.22±0.15. We also present the first measurement of the longitudinal polarization fraction of the decay channel D*0ω, fL=(66.5±4.7±1.5)%. In the above, the first uncertainty is statistical and the second is systematic. The results are based on a sample of (454±5)×106 BB̅ pairs collected at the Υ(4S) resonance, with the BABAR detector at the PEP-II storage rings at SLAC. The measurements are the most precise determinations of these quantities from a single experiment. They are compared to theoretical predictions obtained by factorization, Soft Collinear Effective Theory (SCET) and perturbative QCD (pQCD). We find that the presence of final state interactions is favored and the measurements are in better agreement with SCET than with pQCD.noneJ. P. Lees;V. Poireau;V. Tisserand;J. Garra Tico;E. Grauges;M. Martinelli;D. A. Milanes;A. Palano;M. Pappagallo;G. Eigen;B. Stugu;D. N. Brown;L. T. Kerth;Yu. G. Kolomensky;G. Lynch;H. Koch;T. Schroeder;D. J. Asgeirsson;C. Hearty;T. S. Mattison;J. A. McKenna;A. Khan;V. E. Blinov;A. R. Buzykaev;V. P. Druzhinin;V. B. Golubev;E. A. Kravchenko;A. P. Onuchin;S. I. Serednyakov;Yu. I. Skovpen;E. P. Solodov;K. Yu. Todyshev;A. N. Yushkov;M. Bondioli;D. Kirkby;A. J. Lankford;M. Mandelkern;D. P. Stoker;H. Atmacan;J. W. Gary;F. Liu;O. Long;G. M. Vitug;C. Campagnari;T. M. Hong;D. Kovalskyi;J. D. Richman;C. A. West;A. M. Eisner;J. Kroseberg;W. S. Lockman;A. J. Martinez;T. Schalk;B. A. Schumm;A. Seiden;C. H. Cheng;D. A. Doll;B. Echenard;K. T. Flood;D. G. Hitlin;P. Ongmongkolkul;F. C. Porter;A. Y. Rakitin;R. Andreassen;M. S. Dubrovin;Z. Huard;B. T. Meadows;M. D. Sokoloff;L. Sun;P. C. Bloom;W. T. Ford;A. Gaz;M. Nagel;U. Nauenberg;J. G. Smith;S. R. Wagner;R. Ayad;W. H. Toki;B. Spaan;M. J. Kobel;X. Prudent;K. R. Schubert;R. Schwierz;D. Bernard;M. Verderi;P. J. Clark;S. Playfer;D. Bettoni;C. Bozzi;R. Calabrese;G. Cibinetto;E. Fioravanti;I. Garzia;E. Luppi;M. Munerato;M. Negrini;L. Piemontese;V. Santoro;R. Baldini-Ferroli;A. Calcaterra;R. de Sangro;G. Finocchiaro;M. Nicolaci;P. Patteri;I. M. Peruzzi;M. Piccolo;M. Rama;A. Zallo;R. Contri;E. Guido;M. Lo Vetere;M. R. Monge;S. Passaggio;C. Patrignani;E. Robutti;B. Bhuyan;V. Prasad;C. L. Lee;M. Morii;A. J. Edwards;A. Adametz;J. Marks;U. Uwer;F. U. Bernlochner;M. Ebert;H. M. Lacker;T. Lueck;P. D. Dauncey;M. Tibbetts;P. K. Behera;U. Mallik;C. Chen;J. Cochran;W. T. Meyer;S. Prell;E. I. Rosenberg;A. E. Rubin;A. V. Gritsan;Z. J. Guo;N. Arnaud;M. Davier;G. Grosdidier;F. Le Diberder;A. M. Lutz;B. Malaescu;P. Roudeau;M. H. Schune;A. Stocchi;G. Wormser;D. J. Lange;D. M. Wright;I. Bingham;C. A. Chavez;J. P. Coleman;J. R. Fry;E. Gabathuler;D. E. Hutchcroft;D. J. Payne;C. Touramanis;A. J. Bevan;F. Di Lodovico;R. Sacco;M. Sigamani;G. Cowan;D. N. Brown;C. L. Davis;A. G. Denig;M. Fritsch;W. Gradl;A. Hafner;E. Prencipe;K. E. Alwyn;D. Bailey;R. J. Barlow;G. Jackson;G. D. Lafferty;R. Cenci;B. Hamilton;A. Jawahery;D. A. Roberts;G. Simi;C. Dallapiccola;R. Cowan;D. Dujmic;G. Sciolla;D. Lindemann;P. M. Patel;S. H. Robertson;M. Schram;P. Biassoni;A. Lazzaro;V. Lombardo;N. Neri;F. Palombo;S. Stracka;L. Cremaldi;R. Godang;R. Kroeger;P. Sonnek;D. J. Summers;X. Nguyen;P. Taras;G. De Nardo;D. Monorchio;G. Onorato;C. Sciacca;G. Raven;H. L. Snoek;C. P. Jessop;K. J. Knoepfel;J. M. LoSecco;W. F. Wang;K. Honscheid;R. Kass;J. Brau;R. Frey;N. B. Sinev;D. Strom;E. Torrence;E. Feltresi;N. Gagliardi;M. Margoni;M. Morandin;M. Posocco;M. Rotondo;F. Simonetto;R. Stroili;E. Ben-Haim;M. Bomben;G. R. Bonneaud;H. Briand;G. Calderini;J. Chauveau;O. Hamon;Ph. Leruste;G. Marchiori;J. Ocariz;S. Sitt;M. Biasini;E. Manoni;S. Pacetti;A. Rossi;C. Angelini;G. Batignani;S. Bettarini;M. Carpinelli;G. Casarosa;A. Cervelli;F. Forti;M. A. Giorgi;A. Lusiani;B. Oberhof;E. Paoloni;A. Perez;G. Rizzo;J. J. Walsh;D. Lopes Pegna;C. Lu;J. Olsen;A. J. S. Smith;A. V. Telnov;F. Anulli;G. Cavoto;R. Faccini;F. Ferrarotto;F. Ferroni;M. Gaspero;L. Li Gioi;M. A. Mazzoni;G. Piredda;C. Bünger;O. Grünberg;T. Hartmann;T. Leddig;H. Schröder;R. Waldi;T. Adye;E. O. Olaiya;F. F. Wilson;S. Emery;G. Hamel de Monchenault;G. Vasseur;Ch. Yèche;D. Aston;D. J. Bard;R. Bartoldus;C. Cartaro;M. R. Convery;J. Dorfan;G. P. Dubois-Felsmann;W. Dunwoodie;R. C. Field;M. Franco Sevilla;B. G. Fulsom;A. M. Gabareen;M. T. Graham;P. Grenier;C. Hast;W. R. Innes;M. H. Kelsey;H. Kim;P. Kim;M. L. Kocian;D. W. G. S. Leith;P. Lewis;S. Li;B. Lindquist;S. Luitz;V. Luth;H. L. Lynch;D. B. MacFarlane;D. R. Muller;H. Neal;S. Nelson;I. Ofte;M. Perl;T. Pulliam;B. N. Ratcliff;A. Roodman;A. A. Salnikov;R. H. Schindler;A. Snyder;D. Su;M. K. Sullivan;J. Va’vra;A. P. Wagner;M. Weaver;W. J. Wisniewski;M. Wittgen;D. H. Wright;H. W. Wulsin;A. K. Yarritu;C. C. Young;V. Ziegler;W. Park;M. V. Purohit;R. M. White;J. R. Wilson;A. Randle-Conde;S. J. Sekula;M. Bellis;J. F. Benitez;P. R. Burchat;T. S. Miyashita;M. S. Alam;J. A. Ernst;R. Gorodeisky;N. Guttman;D. R. Peimer;A. Soffer;P. Lund;S. M. Spanier;R. Eckmann;J. L. Ritchie;A. M. Ruland;C. J. Schilling;R. F. Schwitters;B. C. Wray;J. M. Izen;X. C. Lou;F. Bianchi;D. Gamba;L. Lanceri;L. Vitale;F. Martinez-Vidal;A. Oyanguren;H. Ahmed;J. Albert;Sw. Banerjee;H. H. F. Choi;G. J. King;R. Kowalewski;M. J. Lewczuk;C. Lindsay;I. M. Nugent;J. M. Roney;R. J. Sobie;N. Tasneem;T. J. Gershon;P. F. Harrison;T. E. Latham;E. M. T. Puccio;H. R. Band;S. Dasu;Y. Pan;R. Prepost;S. L. WuJ. P., Lees; V., Poireau; V., Tisserand; J., Garra Tico; E., Grauges; M., Martinelli; D. A., Milanes; A., Palano; M., Pappagallo; G., Eigen; B., Stugu; D. N., Brown; L. T., Kerth; Kolomensky, Y. u. G.; G., Lynch; H., Koch; T., Schroeder; D. J., Asgeirsson; C., Hearty; T. S., Mattison; J. A., Mckenna; A., Khan; V. E., Blinov; A. R., Buzykaev; V. P., Druzhinin; V. B., Golubev; E. A., Kravchenko; A. P., Onuchin; S. I., Serednyakov; Skovpen, Y. u. I.; E. P., Solodov; Todyshev, K. Y. u.; A. N., Yushkov; M., Bondioli; D., Kirkby; A. J., Lankford; M., Mandelkern; D. P., Stoker; H., Atmacan; J. W., Gary; F., Liu; O., Long; G. M., Vitug; C., Campagnari; T. M., Hong; D., Kovalskyi; J. D., Richman; C. A., West; A. M., Eisner; J., Kroseberg; W. S., Lockman; A. J., Martinez; T., Schalk; B. A., Schumm; A., Seiden; C. H., Cheng; D. A., Doll; B., Echenard; K. T., Flood; D. G., Hitlin; P., Ongmongkolkul; F. C., Porter; A. Y., Rakitin; R., Andreassen; M. S., Dubrovin; Z., Huard; B. T., Meadows; M. D., Sokoloff; L., Sun; P. C., Bloom; W. T., Ford; A., Gaz; M., Nagel; U., Nauenberg; J. G., Smith; S. R., Wagner; R., Ayad; W. H., Toki; B., Spaan; M. J., Kobel; X., Prudent; K. R., Schubert; R., Schwierz; D., Bernard; M., Verderi; P. J., Clark; S., Playfer; Bettoni, Diego; Bozzi, Concezio; Calabrese, Roberto; Cibinetto, Gianluigi; Fioravanti, Elisa; Garzia, Isabella; Luppi, Eleonora; M., Munerato; M., Negrini; L., Piemontese; Santoro, Valentina; R., Baldini Ferroli; A., Calcaterra; R., de Sangro; G., Finocchiaro; M., Nicolaci; P., Patteri; I. M., Peruzzi; M., Piccolo; M., Rama; A., Zallo; R., Contri; E., Guido; M., Lo Vetere; M. R., Monge; S., Passaggio; C., Patrignani; E., Robutti; B., Bhuyan; V., Prasad; C. L., Lee; M., Morii; A. J., Edwards; A., Adametz; J., Marks; U., Uwer; F. U., Bernlochner; M., Ebert; H. M., Lacker; T., Lueck; P. D., Dauncey; M., Tibbetts; P. K., Behera; U., Mallik; C., Chen; J., Cochran; W. T., Meyer; S., Prell; E. I., Rosenberg; A. E., Rubin; A. V., Gritsan; Z. J., Guo; N., Arnaud; M., Davier; G., Grosdidier; F., Le Diberder; A. M., Lutz; B., Malaescu; P., Roudeau; M. H., Schune; A., Stocchi; G., Wormser; D. J., Lange; D. M., Wright; I., Bingham; C. A., Chavez; J. P., Coleman; J. R., Fry; E., Gabathuler; D. E., Hutchcroft; D. J., Payne; C., Touramanis; A. J., Bevan; F., Di Lodovico; R., Sacco; M., Sigamani; G., Cowan; D. N., Brown; C. L., Davis; A. G., Denig; M., Fritsch; W., Gradl; A., Hafner; E., Prencipe; K. E., Alwyn; D., Bailey; R. J., Barlow; G., Jackson; G. D., Lafferty; R., Cenci; B., Hamilton; A., Jawahery; D. A., Roberts; G., Simi; C., Dallapiccola; R., Cowan; D., Dujmic; G., Sciolla; D., Lindemann; P. M., Patel; S. H., Robertson; M., Schram; P., Biassoni; A., Lazzaro; V., Lombardo; N., Neri; F., Palombo; S., Stracka; L., Cremaldi; R., Godang; R., Kroeger; P., Sonnek; D. J., Summers; X., Nguyen; P., Taras; G., De Nardo; D., Monorchio; G., Onorato; C., Sciacca; G., Raven; H. L., Snoek; C. P., Jessop; K. J., Knoepfel; J. M., Losecco; W. F., Wang; K., Honscheid; R., Kass; J., Brau; R., Frey; N. B., Sinev; D., Strom; E., Torrence; E., Feltresi; N., Gagliardi; M., Margoni; M., Morandin; M., Posocco; M., Rotondo; F., Simonetto; R., Stroili; E., Ben Haim; M., Bomben; G. R., Bonneaud; H., Briand; G., Calderini; J., Chauveau; O., Hamon; Leruste, P. h.; G., Marchiori; J., Ocariz; S., Sitt; M., Biasini; E., Manoni; S., Pacetti; A., Rossi; C., Angelini; G., Batignani; S., Bettarini; M., Carpinelli; G., Casarosa; A., Cervelli; F., Forti; M. A., Giorgi; A., Lusiani; B., Oberhof; E., Paoloni; A., Perez; G., Rizzo; J. J., Walsh; D., Lopes Pegna; C., Lu; J., Olsen; A. J. S., Smith; A. V., Telnov; F., Anulli; G., Cavoto; R., Faccini; F., Ferrarotto; F., Ferroni; M., Gaspero; L., Li Gioi; M. A., Mazzoni; G., Piredda; C., Bünger; O., Grünberg; T., Hartmann; T., Leddig; H., Schröder; R., Waldi; T., Adye; E. O., Olaiya; F. F., Wilson; S., Emery; G., Hamel de Monchenault; G., Vasseur; Yèche, C. h.; D., Aston; D. J., Bard; R., Bartoldus; C., Cartaro; M. R., Convery; J., Dorfan; G. P., Dubois Felsmann; W., Dunwoodie; R. C., Field; M., Franco Sevilla; B. G., Fulsom; A. M., Gabareen; M. T., Graham; P., Grenier; C., Hast; W. R., Innes; M. H., Kelsey; H., Kim; P., Kim; M. L., Kocian; D. W. G. S., Leith; P., Lewis; S., Li; B., Lindquist; S., Luitz; V., Luth; H. L., Lynch; D. B., Macfarlane; D. R., Muller; H., Neal; S., Nelson; I., Ofte; M., Perl; T., Pulliam; B. N., Ratcliff; A., Roodman; A. A., Salnikov; R. H., Schindler; A., Snyder; D., Su; M. K., Sullivan; J., Va’Vra; A. P., Wagner; M., Weaver; W. J., Wisniewski; M., Wittgen; D. H., Wright; H. W., Wulsin; A. K., Yarritu; C. C., Young; V., Ziegler; W., Park; M. V., Purohit; R. M., White; J. R., Wilson; A., Randle Conde; S. J., Sekula; M., Bellis; J. F., Benitez; P. R., Burchat; T. S., Miyashita; M. S., Alam; J. A., Ernst; R., Gorodeisky; N., Guttman; D. R., Peimer; A., Soffer; P., Lund; S. M., Spanier; R., Eckmann; J. L., Ritchie; A. M., Ruland; C. J., Schilling; R. F., Schwitters; B. C., Wray; J. M., Izen; X. C., Lou; F., Bianchi; D., Gamba; L., Lanceri; L., Vitale; F., Martinez Vidal; A., Oyanguren; H., Ahmed; J., Albert; Banerjee, S. w.; H. H. F., Choi; G. J., King; R., Kowalewski; M. J., Lewczuk; C., Lindsay; I. M., Nugent; J. M., Roney; R. J., Sobie; N., Tasneem; T. J., Gershon; P. F., Harrison; T. E., Latham; E. M. T., Puccio; H. R., Band; S., Dasu; Y., Pan; R., Prepost; S. L., W

Study of the baryonic B decay B[superscript -]→Σ[subscript c][superscript ++]p̅ π[superscript -]π[superscript -]

We report the measurement of the baryonic B decay B[superscript -]→Σ[subscript c][superscript ++]p̅ π[superscript -]π[superscript -]. Using a data sample of 467×10[superscript 6] BB̅ pairs collected with the BABAR detector at the PEP-II storage ring at SLAC, the measured branching fraction is (2.98±0.16[subscript (stat)]±0.15[subscript (syst)]±0.77[subscript (Λc)])×10[superscript -4], where the last error is due to the uncertainty in B(Λ[subscript c]+→pK[superscript -]π[superscript +]). The data suggest the existence of resonant subchannels B[superscript -]→Λ[subscript c](2595)[superscript +]p̅ π[superscript -] and, possibly, B[superscript -]→Σ[subscript c][superscript ++]Δ̅[superscript --]π[superscript -]. We see unexplained structures in m(Σ[subscript c][superscript ++]π[superscript -]π[superscript -]) at 3.25  GeV/c[superscript 2], 3.8  GeV/c[superscript 2], and 4.2  GeV/c[superscript 2]

Precision Measurement of the B→X[subscript s]γ Photon Energy Spectrum, Branching Fraction, and Direct CP Asymmetry A[subscript CP](B→X[subscript s+d]γ)

The photon spectrum in the inclusive electromagnetic radiative decays of the B meson, B→X[subscript s]γ plus B→X[subscript d]γ, is studied using a data sample of (382.8±4.2)×10[superscript 6]Υ(4S)→BB̅ decays collected by the BABAR experiment at SLAC. The spectrum is used to extract the branching fraction B(B→X[subscript s]γ)=(3.21±0.33)×10[superscript -4] for E[subscript γ]>1.8  GeV and the direct CP asymmetry A[subscript CP](B→X[subscript s+d]γ)=0.057±0.063. The effects of detector resolution and Doppler smearing are unfolded to measure the photon energy spectrum in the B meson rest frame.United States. Dept. of Energy.National Science Foundation (U.S.

Search for di-muon decays of a low-mass Higgs boson in radiative decays of the Υ(1S)

We search for di-muon decays of a low-mass Higgs boson (A[superscript 0]) produced in radiative Υ(1S) decays. The Υ(1S) sample is selected by tagging the pion pair in the Υ(2S,3S)→π[superscript +]π[superscript -]Υ(1S) transitions, using a data sample of 92.8×10[superscript 6] Υ(2S) and 116.8×10[superscript 6] Υ(3S) events collected by the BABAR detector. We find no evidence for A[superscript 0] production and set 90% confidence level upper limits on the product branching fraction B(Υ(1S)→γA[superscript 0])×B(A[superscript 0]→μ[superscript +]μ[superscript -]) in the range of (0.28-9.7)×10[superscript -6] for 0.212≤m[subscript A][superscript 0]≤9.20  GeV/c[superscript 2]. The results are combined with our previous measurements of Υ(2S,3S)→γA[superscript 0], A[superscript 0]→μ[superscript +]μ[superscript -] to set limits on the effective coupling of the b quark to the A[superscript 0].United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

Search for lepton-number violating B+ -> X(-)l(+)l '(+) decays

We report on a search for eleven lepton-number violating processes B+\u2192X-\u2113+\u2113\u2032+ with X-=K-, \u3c0-, \u3c1-, K*-, or D- and \u2113+/\u2113\u2032+=e+ or \u3bc+, using a sample of 471\ub13 million BB\u304 events collected with the BABAR detector at the PEP-II e+e- collider at the SLAC National Accelerator Laboratory. We find no evidence for any of these modes and place 90% confidence level upper limits on their branching fractions in the range (1.5-26) 710-7. \ua9 2014 American Physical Society

Erratum: Search for di-muon decays of a low-mass Higgs boson in radiative decays of the \u3a5(1S) (Physical Review D (2013) 87 (031102R))

We search for di-muon decays of a low-mass Higgs boson (A0) produced in radiative Υ(1S) decays. The Υ(1S) sample is selected by tagging the pion pair in the Υ(2S,3S)→π+π-Υ(1S) transitions, using a data sample of 92.8×106 Υ(2S) and 116.8×106 Υ(3S) events collected by the BABAR detector. We find no evidence for A0 production and set 90% confidence level upper limits on the product branching fraction B(Υ(1S)→γA0)×B(A0→μ+μ-) in the range of (0.28-9.7)×10-6 for 0.212≤mA0≤9.20  GeV/c2. The results are combined with our previous measurements of Υ(2S,3S)→γA0, A0→μ+μ- to set limits on the effective coupling of the b quark to the A0