Search for the familon via B(+/-) --> pi+/-X(0), B(+/-) --> K(+/-)X(0), and B(0) --> K(0)(S)X(0) decays.

R Ammar,I Narsky,L Hsu,E Nordberg,K Honscheid,F Blanc,K K Gan,M Lohner,E Dambasuren,J Urheim,K Benslama,M Kostin,P Skubic,B Gittelman,D Urner,C Plager,R Mountain,A Bornheim,D Peterson,R Mahapatra,D Cinabro,D Riley,C Bebek,D Hufnagel,A Magerkurth,R Godang,T K Pedlar,G Bonvicini,P Gaidarev,B Valant-Spaight,C Sedlack,H Stoeck,E Johnson,R Poling,R Ehrlich,A Eppich,S Ahmed,G Masek,D Cronin-Hennessy,T Hart,C Boulahouache,I Karliner,H Schwarthoff,J Kandaswamy,K Bukin,A Anastassov,C Gwon,H Kagan,H Mahlke-Krüger,R A Briere,M Dubrovin,I Dankó ,D.m Asner ,T Włodek ,G H A Viehhauser ,S Chen ,Steven Mcgee ,K Berkelman,Gp Chen ,R Kass,R Stroynowski,Lee Sj ,Hill Ts ,Ling Liu ,S Timm,Mistry Nb ,G Brandenburg,J Yelton,D Besson,Gollin Gd ,T Skwarnicki,A Ershov,A Wolf,H Paar ,Shipsey Ip ,Frolov Vv ,Wang Jc ,Xinli Zhao ,E A Eckhart ,A Warburton,Justin Williams ,Jones Cd ,Stepaniak Cj ,Heltsley Bk ,Edwards Kw ,A Bean,Miller Dh ,Mclean Kw ,C Prescott,Thaler Jj ,Wen Sun ,Pavlunin ,Fadeyev ,Richichi Sj ,S Köpp ,H Vogel,Z Xu,F R Wappler ,M Saleem,Lee J ,Mahmood Ah ,Berger Be ,L Jian,A Shapiro,Thorndike Eh ,Gladding Ge ,E Lipeles,A Romano,Dy Kim ,H Severini,G Majumder,P Avery,Meyer To ,Morrison Rj ,Csorna Se ,R J Wilson ,Thayer Jg ,Kreinick Dl ,Hans Rm ,Alexander Jp ,M Palmer,S Anderson,J Ernst,Duboscq Je ,M Selen,Drell Ps ,K M Ecklund,Jaffe De ,Jianping Ye ,Athar Sb ,Von Toerne E ,A Undrus,Sp Pappas ,A J.r Weinstein ,Savinov ,L K Gibbons ,Hinson Jw ,Shibata Ei ,A J S Smith ,Cassel Dg ,Coan Te ,Zoeller Mm ,Thayer Jb ,Hartill Dl ,Y Maravin,Y Kubota,Lyon Al ,Gao Ys ,S Stone,Rubiera Ai ,M Artuso,Mark Patterson ,Alam Ms ,Boisvert ,T Ferguson,Marsh Ma ,Eisenstein Bi ,Gray Sw ,Sadoff Aj

doi:10.1103/physrevlett.87.271801

Search for the familon via B(+/-) --> pi+/-X(0), B(+/-) --> K(+/-)X(0), and B(0) --> K(0)(S)X(0) decays.

R Ammar, I Narsky + Show 157 more

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https://doi.org/10.1103/physrevlett.87.271801

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Journal: Physical review letters	Publication Date: Dec 11, 2001
Citations: 25

Affiliation: University of Kansas

#Cornell Electron Storage Ring #Third Generation Of Quarks + Show 8 more

Abstract
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Abstract

We have searched for the two-body decay of the B meson to a light pseudoscalar meson h = pi(+/-),K+/-,K(0)(S) and a massless neutral feebly interacting particle X(0) such as the familon, the Nambu-Goldstone boson associated with a spontaneously broken global family symmetry. We find no significant signal by analyzing a data sample containing 9.7x10(6) BBbar mesons collected with the CLEO detector at the Cornell Electron Storage Ring, and set 90% C.L. upper limits italicB(B(+/-) --> h(+/-)X(0)) = 4.9x10(-5) and italicB(B(0) --> K(0)(S)X(0)) = 5.3x10(-5). These limits correspond to a lower bound of approximately 10(8) GeV on the family symmetry breaking scale with vector coupling involving the third generation of quarks.

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