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Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Ge JY, Miller DH, Sanghi B, Shipsey IPJ, Xin B. Suppressed decays of D(s)(+) mesons to two pseudoscalar mesons. PHYSICAL REVIEW LETTERS 2007; 99:191805. [PMID: 18233066 DOI: 10.1103/physrevlett.99.191805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2007] [Indexed: 05/25/2023]
Abstract
Using data collected near the D{s}{*+}D{s}{-} peak production energy E_{cm}=4170 MeV by the CLEO-c detector, we study the decays of D{s}{+} mesons to two pseudoscalar mesons. We report on searches for the singly Cabibbo-suppressed D{s}{+} decay modes K{+}eta, K{+}eta', pi{+}K{S}{0}, K{+}pi{0}, and the isospin-forbidden decay mode D{s}{+}-->pi{+}pi{0}. We normalize with respect to the Cabibbo-favored D{s}{+} modes pi{+}eta, pi{+}eta', and K{+}K{S}{0}, and obtain ratios of branching fractions: B(D{s}{+}-->K{+}eta)/B(D{s}{+}-->pi{+}eta)=(8.9+/-1.5+/-0.4)%, B(D{s}{+}-->K{+}eta')/B(D{s}{+}-->pi{+}eta')=(4.2+/-1.3+/-0.3)%, B(D{s}{+}-->pi{+}K{S}{0})/B(D{s}{+}-->K{+}K{S}{0})=(8.2+/-0.9+/-0.2)%, B(D{s}{+}-->K{+}pi{0})/B(D{s}{+}-->K{+}K{S}{0})=(5.5+/-1.3+/-0.7)%, and B(D{s}{+}-->pi{+}pi{0})/B(D{s}{+}-->K{+}K{S}{0})<4.1% at 90% C.L., where the uncertainties are statistical and systematic, respectively.
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Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F. Evidence for the decay D0-->K(-)pi(+)pi(-)e(+)nu(e). PHYSICAL REVIEW LETTERS 2007; 99:191801. [PMID: 18233062 DOI: 10.1103/physrevlett.99.191801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Indexed: 05/25/2023]
Abstract
Using a 281 pb{-1} data sample collected at the psi(3770) with the CLEO-c detector, we present the first absolute branching fraction measurement of the decay D0-->K(-)pi(+)pi(-)e(+)nu(e) at a statistical significance of about 4.0 standard deviations. We find 10 candidates consistent with the decay D0-->K(-)pi(+)pi(-)e(+)nu(e). The probability that a background fluctuation accounts for this signal is less than 4.1 x 10{-5}. We find B(D0-->K(-)pi(+)pi(-)e(+)nu(e)) = [2.8{-1.1}{+1.4}(stat)+/-0.3(syst)]x10{-4}. By restricting the invariant mass of the hadronic system to be consistent with K1(1270), we obtain the product of branching fractions B(D{0}-->K{1}{-}(1270)e{+}nu{e})xB(K1-(1270)-->K{-}pi{+}pi{-})=[2.5{-1.0}{+1.3}(stat)+/-0.2(syst)]x10{-4}. Using B(K1-(1270)-->K{-}pi{+}pi{-})=(33+/-3)%, we obtain B(D{0}-->K{1}{-}(1270)e{+}nu{e})=[7.6{-3.0}{+4.1}(stat)+/-0.6(syst)+/-0.7]x10{-4}. The last error accounts for the uncertainties in the measured K1-(1270)-->K{-}pi{+}pi{-} branching fractions.
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153
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Lopez A, Mehrabyan S, Mendez H, Ramirez J, Ge JY, Miller DH, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V. Measurement of prominent eta-decay branching fractions. PHYSICAL REVIEW LETTERS 2007; 99:122001. [PMID: 17930497 DOI: 10.1103/physrevlett.99.122001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2007] [Indexed: 05/25/2023]
Abstract
The decay psi(2S) --> etaJ/psi is used to measure, for the first time, all prominent eta-meson branching fractions with the same experiment in the same dataset, thereby providing a consistent treatment of systematics across branching fractions. We present results for eta decays to gamma gamma, pi(+)pi(-)pi(0), 3pi(0), pi(+)pi(-)gamma and e(+)e(-)gamma, accounting for 99.9% of all eta decays. The precision of several of the branching fractions and their ratios is improved. Two channels, pi(+)pi(-)gamma and e(+)e(-)gamma, show results that differ at the level of three standard deviations from those previously determined.
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Miller DH, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Ge JY, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Lopez A, Mehrabyan S, Mendez H, Ramirez J. Measurement of the eta-meson mass using psi(2S) --> etaJ/psi. PHYSICAL REVIEW LETTERS 2007; 99:122002. [PMID: 17930498 DOI: 10.1103/physrevlett.99.122002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2007] [Indexed: 05/25/2023]
Abstract
We measure the mass of the eta meson using psi(2S) --> etaJ/psi events acquired with the CLEO-c detector operating at the CESR e(+)e(-) collider. Using the four decay modes eta --> gamma gamma, 3pi(0), pi(+)pi(-)pi(0), and pi(+)pi(-)gamma, we find M(eta) = 547.785 +/- 0.017 +/- 0.057 MeV, in which the first uncertainty is statistical and the second systematic. This result has an uncertainty comparable to the two most precise previous measurements and is consistent with that of NA48, but is inconsistent at the level of 6.5 sigma with the much smaller mass obtained by GEM.
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Artuso M, Blusk S, Butt J, Khalil S, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F. Measurement of the decay constant f(Ds+) using D(s+)-->l+ nu. PHYSICAL REVIEW LETTERS 2007; 99:071802. [PMID: 17930886 DOI: 10.1103/physrevlett.99.071802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Indexed: 05/25/2023]
Abstract
We measure the decay constant f(Ds+) using the D(s+)-->l+ nu channel, where the l+ designates either a mu+ or a tau+, when the tau+ -->pi+ nu. Using both measurements we find f(Ds+)=274+/-13+/-7 MeV. Combining with our previous determination of f(D+), we compute the ratio f(Ds+)/f(D+)=1.23+/-0.11+/-0.04. We compare with theoretical estimates.
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Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Coan TE, Gao YS, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL. Study of exclusive charmless semileptonic B decays and |Vub|. PHYSICAL REVIEW LETTERS 2007; 99:041802. [PMID: 17678351 DOI: 10.1103/physrevlett.99.041802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2007] [Indexed: 05/16/2023]
Abstract
We study semileptonic B decay to the exclusive charmless states pi, rho/omega, eta, and eta;{'} using the 16 fb(-1) CLEO Upsilon(4S) data sample. We find B(B0-->pi-l+nu)=(1.37+/-0.15stat+/-0.11sys)x10(-4) and B(B0-->rho-l+nu)=(2.93+/-0.37stat+/-0.37sys)x10(-4) and find evidence for B+-->eta'l+nu, with B(B+-->eta'l+nu)=(2.66+/-0.80stat+/-0.56sys)x10(-4). From our B-->pilnu rate for q2>16 GeV2 and lattice QCD, we find |Vub|=(3.6+/0.4stat+/0.2syst-0.4thy+0.6)x10(-3) [corrected]
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Bornheim A, Lipeles E, Pappas SP, Shapiro A, Sun WM, Weinstein AJ, Briere RA, Chen GP, Ferguson T, Tatishvili G, Vogel H, Adam NE, Alexander JP, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Magerkurth A, Mahlke-Kruger H, Meyer TO, Mistry NB, Patterson JR, Peterson D, Pivarski J, Richichi SJ, Riley D, Sadoff AJ, Schwarthoff H, Shepherd MR, Thayer JG, Urner D, Wilksen T, Warburton A, Weinberger M, Athar SB, Avery P, Breva-Newell L, Potlia V, Stoeck H, Yelton J, Benslama K, Eisenstein BI, Gollin GD, Karliner I, Lowrey N, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Besson D, Zhao X, Anderson S, Frolov VV, Gong DT, Kubota Y, Li SZ, Poling R, Smith A, Stepaniak CJ, Urheim J, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ahmed S, Alam MS, Ernst J, Jian L, Saleem M, Wappler F, Arms K, Eckhart E, Gan KK, Gwon C, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, von Toerne E, Zoeller MM, Severini H, Skubic P, Dytman SA, Mueller JA, Nam S, Savinov V, Hinson JW, Lee J, Miller DH, Pavlunin V, Sanghi B, Shibata EI, Shipsey IPJ, Cronin-Hennessy D, Lyon AL, Park CS, Park W, Thayer JB, Thorndike EH, Coan TE, Gao YS, Liu F, Maravin Y, Stroynowski R, Artuso M, Boulahouache C, Blusk S, Bukin K, Dambasuren E, Mountain R, Muramatsu H, Nandakumar R, Skwarnicki T, Stone S, Wang JC, Mahmood AH, Csorna SE, Danko I, Bonvicini G, Cinabro D, Dubrovin M, McGee S. Publisher’s Note: Measurements of charmless hadronic two-bodyBmeson decays and the ratioB(B→DK)/B(B→Dπ)[Phys. Rev. D68, 052002 (2003)]. Int J Clin Exp Med 2007. [DOI: 10.1103/physrevd.75.119907] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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158
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Watanabe S, Katabuchi T, Ishioka NS, Matsuhashi S, Muramatsu H. Production of endohedral 133Xe-higher fullerenes by ion implantation. J Radioanal Nucl Chem 2007. [DOI: 10.1007/s10967-007-0605-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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159
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Sudo H, Ozaki K, Muramatsu H, Kamei K, Yogo K, Cynshi O, Koga H, Itoh Z, Omura S, Takanashi H. Mitemcinal (GM-611), an orally active motilin agonist, facilitates defecation in rabbits and dogs without causing loose stools. Neurogastroenterol Motil 2007; 19:318-26. [PMID: 17391248 DOI: 10.1111/j.1365-2982.2006.00885.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The effects of mitemcinal (GM-611), an orally active motilin agonist, on defecation were investigated in rabbits and dogs. In normal rabbits, within 0-3 h of dosing, orally administered mitemcinal (2.5-10 mg kg(-1)) increased stool weight in a dose-dependent manner without causing loose stools. Sennoside (12-48 mg kg(-1)) also facilitated defecation within 2-9 h of oral administration, but the stools were significantly loosened. In the morphine-induced constipation model, the stool weight of morphine-treated rabbits (1 mg kg(-1)) was only 37.5% of that of untreated animals. Mitemcinal (0.5-20 mg kg(-1)) dose-dependently increased stool weight without increasing stool water content. At the highest dose of mitemcinal, stool weight recovered to 83.9% of that of untreated animals. In normal dogs, mitemcinal (0.3-3 mg kg(-1)) reduced the time to first bowel movement after oral administration without inducing diarrhoea at any dose. These results indicate that mitemcinal facilitates defecation without inducing severe diarrhoea. It is suggested that mitemcinal may be a novel therapeutic agent for constipation that enables easier control of the timing of defecation because of the early onset and short duration of its action, compared with sennoside.
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160
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Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Coan TE, Gao YS, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Potlia V, Yelton J, Rubin P. Precision determination of the D0 mass. PHYSICAL REVIEW LETTERS 2007; 98:092002. [PMID: 17359150 DOI: 10.1103/physrevlett.98.092002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2007] [Indexed: 05/14/2023]
Abstract
A precision measurement of the D0 meson mass has been made using approximately 281 pb(-1) of e+e- annihilation data taken with the CLEO-c detector at the psi(3770) resonance. The exclusive decay D0-->K_{S}phi has been used to obtain M(D0)=1864.847+/-0.150(stat)+/-0.095(syst) MeV. This corresponds to M(D0D*0)=3871.81+/-0.36 MeV, and leads to a well-constrained determination of the binding energy of the proposed D0D*0 molecule X(3872), as Eb=0.6+/-0.6 MeV.
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Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Severini H, Dytman SA, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Coan TE, Gao YS, Liu F, Artuso M, Blusk S, Butt J, Horwitz N, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR. Observation of Upsilon(3S)-->tau+tau- and tests of lepton universality in Upsilon decays. PHYSICAL REVIEW LETTERS 2007; 98:052002. [PMID: 17358847 DOI: 10.1103/physrevlett.98.052002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2006] [Indexed: 05/14/2023]
Abstract
Using data collected with the CLEO III detector at the CESR e+e- collider, we report on a first observation of the decay Upsilon(3S)-->tau+tau-, and precisely measure the ratio of branching fractions of Upsilon(nS), n=1, 2, 3, to tau+tau- and mu+mu- final states, finding agreement with expectations from lepton universality. We derive absolute branching fractions for these decays, and also set a limit on the influence of a low mass CP-odd Higgs boson in the decay of the Upsilon(1S).
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Ozaki K, Sudo H, Muramatsu H, Yogo K, Kamei K, Koga H, Itoh Z, Omura S, Takanashi H. Mitemcinal (GM-611), an orally active motilin receptor agonist, accelerates colonic motility and bowel movement in conscious dogs. Inflammopharmacology 2007; 15:36-42. [PMID: 17323194 DOI: 10.1007/s10787-006-1542-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The prokinetic effects of mitemcinal, an orally active motilin receptor agonist, on the lower gastrointestinal tracts were investigated in conscious dogs. Oral administration of mitemcinal (0.1-1 mg/kg) stimulated colonic motility, which was measured by chronically implanted force-transducers, as well as gastric motility in a dose-dependent manner. The gastrointestinal contractile activities induced by mitemcinal were inhibited by the continuous intravenous infusion of GM-109, a selective motilin receptor antagonist. Oral administration of mitemcinal (0.3-3 mg/kg) also accelerated bowel movement after feeding without inducing diarrhea in dogs. The results demonstrate that mitemcinal stimulates colonic motility via motilin receptors and the effect of mitemcinal on colonic motility may reflect bowel movement after feeding. Thus, mitemcinal could be a promising agent for treatment of not only the upper but also the lower gastrointestinal motility disorders.
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Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Dytman SA, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL. Absolute branching fraction measurements for D+ and D0 inclusive semileptonic decays. PHYSICAL REVIEW LETTERS 2006; 97:251801. [PMID: 17280340 DOI: 10.1103/physrevlett.97.251801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2006] [Indexed: 05/13/2023]
Abstract
We present measurements of the inclusive branching fractions for the decays D+-->Xe+ nu(e) and D0-->Xe+ nu(e), using 281 pb(-1) of data collected on the psi(3770) resonance with the CLEO-c detector. We find B(D0-->Xe+ nu(e)) = (6.46+/-0.17+/-0.13)% and B(D+-->Xe+ nu(e)) = (16.13+/-0.20+/-0.33)%. Using the known D meson lifetimes, we obtain the ratio Gamma(D+)sl/Gamma(D0)sl = 0.985+/-0.028+/-0.015, confirming isospin invariance at the level of 3%. The positron momentum spectra from D+ and D0 have consistent shapes.
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Muramatsu H, Iwasaki F. Monitoring of the Changes of Dynamic Viscoelastic Properties of Liquid Crystals-During the Orientation with Voltage Pulses Using a Quartz Crystal Resonator. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259508034555] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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165
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Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Dytman SA, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Stoeck H, Yelton J. An investigation ofD+→τ+ν. Int J Clin Exp Med 2006. [DOI: 10.1103/physrevd.73.112005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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166
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Villalpando-Paez F, Zamudio A, Elias A, Son H, Barros E, Chou S, Kim Y, Muramatsu H, Hayashi T, Kong J, Terrones H, Dresselhaus G, Endo M, Terrones M, Dresselhaus M. Synthesis and characterization of long strands of nitrogen-doped single-walled carbon nanotubes. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.04.074] [Citation(s) in RCA: 169] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kim Y, Muramatsu H, Hayashi T, Endo M, Terrones M, Dresselhaus M. Fabrication of High-Purity, Double-Walled Carbon Nanotube Buckypaper. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cvde.200504217] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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168
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Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weaver KM, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Williams J, Wiss J, Asner DM, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Thorndike EH. Observation of Psi(3770)-->gammachi(c1)-->gammagammaJ/Psi. PHYSICAL REVIEW LETTERS 2006; 96:182002. [PMID: 16712360 DOI: 10.1103/physrevlett.96.182002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2005] [Revised: 02/22/2006] [Indexed: 05/09/2023]
Abstract
From e(+)e(-) collision data acquired with the CLEO detector at the Cornell Electron Storage Ring, we observe the non-DD(_) decay Psi(3770))-->gammachi(c1) with a statistical significance of 6.6 standard deviations, using the two-photon cascades to J/Psi and J/Psi-->l(+)l(-). We determine sigma(e(=)e(-)-->Psi(3770))xBeta(Psi(3770)-->gammachi(c1))=(18.0 +/- 3.3 +/- 2.5) pb and branching fraction Beta(Psi(3770)-->gammachi(c1)=(2.8 +/- 0.5+/-0.4) x 10(-3). We set 90% C.L. upper limits for the transition to chi(c2) (chi(c0)): sigma x Beta<5.7 pb (<282 pb) and Beta<0.9 x 10(-3) (<44 x 10(-3)). We also determine Gamma(Psi(3770)gammachi(c1))/Gamma(Psi(3770)-->pi(+)pi(-)J/Psi)=1.5 +/- 0.3 +/- 0.3 (>1.0 at 90% C.L.), which bears upon the interpretation of X(3872).
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Coan TE, Gao YS, Liu F, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Dytman SA, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH. Charmonium Decays of Y(4260), psi(4160), and psi(4040). PHYSICAL REVIEW LETTERS 2006; 96:162003. [PMID: 16712216 DOI: 10.1103/physrevlett.96.162003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2006] [Revised: 03/03/2006] [Indexed: 05/09/2023]
Abstract
Using data collected with the CLEO detector operating at the CESR e+e- collider at sqrt[s]=3.97-4.26 GeV, we investigate 15 charmonium decay modes of the psi(4040), psi(4160), and Y(4260) resonances. We confirm, at 11 sigma significance, the BABAR Y(4260)-->pi+pi- J/psi discovery, make the first observation of Y(4260)--> pi(0)pi(0) J/psi (5.1 sigma), and find the first evidence for Y(4260)-->K+K- J/psi(3.7 sigma). We measure e+e- cross sections at sqrt[s]=4.26 GeV as sigma(pi+pi- J/psi)=58(+12)(-10)+/-4 pb, sigma(pi(0)pi(0) J/psi)=23(+12)(-8)+/-1 pb, and sigma(K+K- J/psi)=9(+9)(-5)+/-1 pb, in which the uncertainties are statistical and systematic, respectively. Upper limits are placed on other decay rates from all three resonances.
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170
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Aquines O, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Stroynowski R, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Arms K, Severini H, Dytman SA, Love W, Mehrabyan S, Savinov V. Measurements of the exclusive decays of the upsilon(5S) to meson final states and improved B(s)* mass measurement. PHYSICAL REVIEW LETTERS 2006; 96:152001. [PMID: 16712149 DOI: 10.1103/physrevlett.96.152001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2006] [Indexed: 05/09/2023]
Abstract
Using 420 pb(-1) of data collected on the upsilon(5S) resonance with the CLEO III detector, we reconstruct B mesons in 25 exclusive decay channels to measure or set upper limits on the decay rate of upsilon(5S) into B meson final states. We measure the inclusive B cross section to be sigma(upsilon(5S) --> BB(X)) = (0.177 +/- 0.030 +/- 0.016) nb and make the first measurements of the production rates of sigma(upsilon(5S) --> B*B*) = (0.131 +/- 0.025 +/- 0.014) nb and sigma(upsilon(5S) --> BB*) = (0.043 +/- 0.016 +/- 0.006) nb, respectively. We set 90% confidence level limits of sigma(upsilon(5S) -->BB) < 0.038 nb, sigma(upsilon(5S) --> B(*)B(*)pi) < 0.055 nb and sigma(upsilon(5S) --> BBpipi) < 0.024 nb. We also extract the most precise value of the B(s)* mass to date, M(B(s)*) = (5411.7 +/- 1.6 +/- 0.6) MeV/c2.
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Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, White EJ, Wiss J, Shepherd MR, Asner DM, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Arms K, Severini H, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Stroynowski R, Artuso M, Boulahouache C, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Weinstein AJ, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME. Experimental limits on weak annihilation contributions to decays. PHYSICAL REVIEW LETTERS 2006; 96:121801. [PMID: 16605896 DOI: 10.1103/physrevlett.96.121801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2006] [Indexed: 05/08/2023]
Abstract
We present the first experimental limits on high-q2 contributions to charmless semileptonic decays of the form expected from the weak annihilation (WA) decay mechanism. Such contributions could bias determinations of /Vub/ from inclusive measurements of B-->Xulupsilon. Using a wide range of models based on available theoretical input we set a limit of GammaWA/Gammab-->u<7.4% (90% confidence level) on the WA fraction, and assess the impact on previous inclusive determinations of /Vub/.
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172
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Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Arms K, Severini H, Dytman SA, Love W, Mehrabyan S, Savinov V, Aquines O, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Stroynowski R, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME. Dielectron widths of the Gamma(1S,2S,3S) resonances. PHYSICAL REVIEW LETTERS 2006; 96:092003. [PMID: 16606256 DOI: 10.1103/physrevlett.96.092003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2005] [Indexed: 05/08/2023]
Abstract
We determine the dielectron widths of the Gamma(1S), Gamma(2S), and Gamma(3S) resonances with better than 2% precision by integrating the cross section of e+e- -->Gamma over the e+e- center-of-mass energy. Using e+e- energy scans of the Gamma resonances at the Cornell Electron Storage Ring and measuring Gamma production with the CLEO detector, we find dielectron widths of 1.252+/-0.004(sigma(stat))+/-0.019(sigma(syst)) keV, 0.581+/-0.004+/-0.009 keV, and 0.413+/-0.004+/-0.006 keV for the Gamma(1S), Gamma(2S), and Gamma(3S), respectively.
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Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Arms K, Severini H, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR, Asner DM, Edwards KW. Measurement of sigma(e+e- -->psi(3770)-->hadrons) at Ec.m.=3773 MeV. PHYSICAL REVIEW LETTERS 2006; 96:092002. [PMID: 16606255 DOI: 10.1103/physrevlett.96.092002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2005] [Indexed: 05/08/2023]
Abstract
We measure the cross section for e+e- -->psi(3770) -->hadrons at Ec.m.=3773 MeV to be (6.38+/-0.08(+0.41)(-0.30) nb using the CLEO detector at the CESR e+e- collider. The difference between this and the e+e- -->psi(3770) -->DD cross section at the same energy is found to be (-0.01+/-0.08(+0.41)(-0.30) nb. With the observed total cross section, we extract Gamma(ee)(psi(3770))=(0.204+/-0.003(+0.041)(-0.027) keV. Uncertainties shown are statistical and systematic, respectively.
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Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Dytman SA, Love W, Mehrabyan S, Savinov V, Aquines O, Li Z, Lopez A, Mendez H, Ramirez J, Xin B, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Stroynowski R, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J. New measurements of Cabibbo-suppressed decays of mesons with the CLEO-c detector. PHYSICAL REVIEW LETTERS 2006; 96:081802. [PMID: 16606168 DOI: 10.1103/physrevlett.96.081802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2005] [Indexed: 05/08/2023]
Abstract
Using of data collected with the CLEO-c detector, we report on first observations and measurements of Cabibbo-suppressed decays of D mesons in the following six decay modes: pi+ pi- pi0 pi0, pi+ pi+ pi- pi- pi0, pi+ pi0 pi0, pi+ pi+ pi- pi0, eta pi0, and omega pi+ pi-. Improved branching fraction measurements in eight other multipion decay modes are also presented. The measured D --> pi pi rates allow us to extract the ratio of isospin amplitudes A(DeltaI = (3/2) / A(DeltaI = (1/2)) = 0.420 +/- 0.014(stat) +/- 0.016(syst) and the strong phase shift of delta1 = (86.4 +/- 2.8 +/- 3.3) degrees, which is quite large and now more precisely determined.
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Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weaver KM, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Williams J, Wiss J, Asner DM, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL. Observation of psi(3770) --> pi pi J/psi and measurement of Gamma ee[psi(2S)]. PHYSICAL REVIEW LETTERS 2006; 96:082004. [PMID: 16606173 DOI: 10.1103/physrevlett.96.082004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2005] [Revised: 11/09/2005] [Indexed: 05/08/2023]
Abstract
We observe signals for the decays psi(3770) --> XJ/psi from data acquired with the CLEO detector operating at the CESR e+ e- collider with square root of s = 3773 MeV. We measure the following branching fractions Beta(psi(3770) --> XJ/psi and significances: (189 +/- 20 +/- 20) x 10(-5) (11.6sigma) for X = pi+ pi-, (80 +/- 25 +/- 16) x 10(-5) (3.4sigma) for X = pi0 pi0, and (87 +/- 33 +/- 22) x 10(-5) (3.5sigma) for X = eta, where the errors are statistical and systematic, respectively. The radiative return process e+ e- --> gamma psi(2S) populates the same event sample and is used to measure Gamma ee[psi(2S)] = (2.54 +/- 0.03 +/- 0.11) keV.
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Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Cravey M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weaver KM, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Williams J, Wiss J, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J. Search for exclusive multibody non- decays at the resonance. PHYSICAL REVIEW LETTERS 2006; 96:032003. [PMID: 16486686 DOI: 10.1103/physrevlett.96.032003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2005] [Indexed: 05/06/2023]
Abstract
Using data collected at the psi(3770) resonance with the CLEO-c detector at the Cornell e+e- storage ring, we present searches for 25 charmless decay modes of the psi(3770), mostly multibody final states. No evidence for charmless decays is found.
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177
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Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Bornheim A, Pappas SP, Weinstein AJ, Asner DM, Edwards KW, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weaver KM, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Williams J, Wiss J, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Arms K, Severini H, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Maravin Y, Artuso M, Boulahouache C, Blusk S, Butt J, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE. Observation of Bs production at the Y(5S) resonance. PHYSICAL REVIEW LETTERS 2006; 96:022002. [PMID: 16486562 DOI: 10.1103/physrevlett.96.022002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2005] [Indexed: 05/06/2023]
Abstract
Using the CLEO detector at the Cornell Electron Storage Ring, we have observed the Bs meson in e+e- annihilation at the Y(5S) resonance. We find 14 candidates consistent with Bs decays into final states with a J/psi or a Ds(*)- . The probability that we have observed a background fluctuation is less than 8 x 10(-10) . We have established that at the energy of the Y(5S) resonance Bs production proceeds predominantly through the creation of Bs*Bs* pairs. We find sigma(e+e- --> Bs*Bs*) = [0.11(-0.03))(+0.04)(stat) +/- 0.02(syst)]nb , and set the following limits: sigma(e+e- --> BsBs)/ sigma(e+ e- --> Bs*Bs*) <0.16 and [sigma(e+e- --> BsBs*) + sigma(e+e- --> Bs*Bs)]/sigma(e+e- -->Bs*Bs*) < 0.16 (90% C.L.). The mass of the Bs* meson is measured to be M(Bs*) = [5.414+/- 0.001(stat) +/- 0.003(syst)] GeV/c2 .
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Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Arms K, Severini H, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dorjkhaidav O, Li J, Menaa N, Mountain R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Bornheim A, Pappas SP, Weinstein AJ, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Wilksen T, Weaver KM, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Williams J, Wiss J, Asner DM, Edwards KW, Besson D. Precision measurements of the timelike electromagnetic form factors of pion, kaon, and proton. PHYSICAL REVIEW LETTERS 2005; 95:261803. [PMID: 16486342 DOI: 10.1103/physrevlett.95.261803] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2005] [Indexed: 05/06/2023]
Abstract
Using 20.7 pb(-1) of e(+)e(-) annihilation data taken at sq.rt(r) = 3.671 GeV with the CLEO-c detector, precision measurements of the electromagnetic form factors of the charged pion, charged kaon, and proton have been made for timelike momentum transfer of |Q(2)| = 13.48 GeV(2) by the reaction e(+)e(-) --> h(+)h(-). The measurements are the first ever with identified pions and kaons of |Q(2)| > 4 GeV(2), with the results F(13.48 GeV(2)) = 0.075 +/- 0.008(stat) +/- 0.005(syst) and F(K)(13.48 GeV(2)) = 0.063 +/- 0.004(stat) +/- 0.001(syst). The result for the proton, assuming G(p)(E) = G(p)(M), is G(p)(M)(13.48 GeV(2)) = 0.014 +/- 0.002(stat) +/- 0.001(syst), which is in agreement with earlier results.
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Artuso M, Boulahouache C, Blusk S, Butt J, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Bornheim A, Pappas SP, Weinstein AJ, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weaver KM, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Williams J, Wiss J, Asner DM, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Arms K, Severini H, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Cravey M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Stroynowski R. Evidence for Bs* Bs* production at the Gamma(5S) resonance. PHYSICAL REVIEW LETTERS 2005; 95:261801. [PMID: 16486340 DOI: 10.1103/physrevlett.95.261801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2005] [Indexed: 05/06/2023]
Abstract
We use data collected by the CLEO III detector at the Cornell Electron Storage Ring to measure the inclusive yields of D(s) mesons as B(Y(5S) --> D(s)X) = (44-7 +/- 4.2 +/- 9.9)% and B(Y(4S) --> D(s)X) = (18.1 +/- 0.5 +/- 2.8)%. From these measurements, we make a model dependent estimate of the ratio of B(s)*B(s)* to the total bb quark pair production of (16.0 +/- 2.6 +/- 5.8)% at the Y(5S) energy.
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Artuso M, Boulahouache C, Blusk S, Butt J, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weaver KM, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Williams J, Wiss J, Asner DM, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F. Improved measurement of B(D+ --> mu+nu) and the pseudoscalar decay constant fD+. PHYSICAL REVIEW LETTERS 2005; 95:251801. [PMID: 16384447 DOI: 10.1103/physrevlett.95.251801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2005] [Indexed: 05/05/2023]
Abstract
We extract a relatively precise value for the decay constant of the meson by measuring B(D+ --> mu+nu) = (4.40 +/-0.66(+0.09)(-0.12) x 10(-4) using 281 pb(-1) of data taken on phi(3770) the resonance with the CLEO-c detector. We find fD+ = (222.6 +/- 16.7(+2.8)(-3.4)) MeV, and compare with current theoretical calculations. We also set a 90% confidence upper limit on B(D+e+nu)< 2.4 x 10(-5) which constrains new physics models.
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He Q, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weaver KM, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Williams J, Wiss J, Asner DM, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Cravey M, Cummings JP, Danko I, Napolitano J. Search for rare and forbidden decays D+ --> h+/- e+/- e+. PHYSICAL REVIEW LETTERS 2005; 95:221802. [PMID: 16384207 DOI: 10.1103/physrevlett.95.221802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2005] [Indexed: 05/05/2023]
Abstract
Using 0.8 x 10(6) D+ D- pairs collected with the CLEO-c detector at the psi(3770) resonance, we have searched for flavor-changing neutral current and lepton-number-violating decays of D+ mesons to final states with dielectrons. We find no indication of either, obtaining 90% confidence level upper limits of B(D+ --> pi+ e+ e-) < 7.4 x 10(-6), B(D+ --> pi- e+ d+) < 3.6 x 10(-6), B(D+ --> K+ e+ e-) < 6.2 x 10(-6), and B(D+ --> K- e+ e+) < 4.5 x 10(-6).
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182
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Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Chasse M, Cravey M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Park W, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Weaver KM, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Williams J, Wiss J, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Mahmood AH, Severini H, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J. Absolute branching fraction measurements of exclusive D+ semileptonic decays. PHYSICAL REVIEW LETTERS 2005; 95:181801. [PMID: 16383892 DOI: 10.1103/physrevlett.95.181801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2005] [Indexed: 05/05/2023]
Abstract
Using data collected at the psi(3770) resonance with the CLEO-c detector at the Cornell e+e- storage ring, we present improved measurements of the absolute branching fractions of D+decays to K0e+ve, pi0e+ve, K*0e+ve, and p0e+ve, and the first observation and absolute branching fraction measurement of D+ --> omega e+ve. We also report the most precise tests to date of isospin invariance in semileptonic D0 and D+ decays.
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Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Phillips EA, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Williams J, Wiss J, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Mahmood AH, Severini H, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shibata EI, Shipsey IPJ, Adams GS, Chasse M, Cravey M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Park W, Thorndike EH. Absolute branching fraction measurements of exclusive D0 semileptonic decays. PHYSICAL REVIEW LETTERS 2005; 95:181802. [PMID: 16383893 DOI: 10.1103/physrevlett.95.181802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2005] [Indexed: 05/05/2023]
Abstract
With the first data sample collected by the CLEO-c detector at the psi(3770) resonance we have studied four exclusive semileptonic decays of the D0 meson. Our results include the first observation and absolute branching fraction measurement for D0 --> p-e+ve and improved measurements of the absolute branching fractions for D0 decays to K-e+ve, pi-e+ve, and K*-e+ve.
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Muramatsu H, Hayashi T, Kim Y, Shimamoto D, Kim Y, Tantrakarn K, Endo M, Terrones M, Dresselhaus M. Pore structure and oxidation stability of double-walled carbon nanotube-derived bucky paper. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2005.08.110] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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He Q, Muramatsu H, Park CS, Park W, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Weaver KM, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Williams J, Wiss J, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Mahmood AH, Severini H, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Chasse M, Cravey M, Cummings JP, Danko I, Napolitano J. Measurement of absolute hadronic branching fractions of D mesons and e+e- -->DD cross sections at Ec.m.=3773 MeV. PHYSICAL REVIEW LETTERS 2005; 95:121801. [PMID: 16197064 DOI: 10.1103/physrevlett.95.121801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2005] [Indexed: 05/04/2023]
Abstract
Using 55.8 pb(-1) of e+e- collisions recorded at the psi(3770) resonance with the CLEO-c detector at CESR, we determine absolute hadronic branching fractions of charged and neutral D mesons using a double tag technique. Among measurements for three D0 and six D+ modes, we obtain reference branching fractions B(D0-->K-pi+)=(3.91+/-0.08+/-0.09)% and B(D+-->K-pi+pi+)=(9.5+/-0.2+/-0.3)%, where the uncertainties are statistical and systematic, respectively. Final state radiation is included in these branching fractions by allowing for additional, unobserved, photons in the final state. Using a determination of the integrated luminosity, we also extract the cross sections sigma(e+e- -->D0D0)=(3.60+/-0.07(+0.07)(-0.05)) nb and sigma(e+e- -->D+D-)=(2.79+/-0.07(+0.10)(-0.04)) nb.
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Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weaver KM, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Williams J, Wiss J, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Mahmood AH, Severini H, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Cravey M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Park W, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME. Observation of the hc(1P1) state of charmonium. PHYSICAL REVIEW LETTERS 2005; 95:102003. [PMID: 16196921 DOI: 10.1103/physrevlett.95.102003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2005] [Indexed: 05/04/2023]
Abstract
The h(c)((1)P(1)) state of charmonium has been observed in the reaction psi(2S) --> pi(0)h(c) --> (gammagamma)(gammaeta(c)) using 3.08 x10(6) psi(2S) decays recorded in the CLEO detector. Data have been analyzed both for the inclusive reaction, where the decay products of the eta(c) are not identified, and for exclusive reactions, in which eta(c) decays are reconstructed in seven hadronic decay channels. We find M(h(c)) = 3524.4 +/- 0.6 +/- 0.4 MeV which corresponds to a hyperfine splitting DeltaM(hf)(1P) triple-bond <M((3)P(J)) - M((1)P(1)) = +1.0 +/- 0.6 +/- 0.4 MeV, and B(psi(2S) --> pi(0)h(c)) x B(h(c) --> gammaeta(c)) = (4.0 +/- 0.8 +/- 0.7) x 10(-4).
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Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weaver KM, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Williams J, Wiss J, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Mahmood AH, Severini H, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Adams GS, Cravey M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Park W, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M. Observation of thirteen new exclusive multibody hadronic decays of the psi(2S). PHYSICAL REVIEW LETTERS 2005; 95:062001. [PMID: 16090940 DOI: 10.1103/physrevlett.95.062001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2005] [Indexed: 05/03/2023]
Abstract
Using data accumulated with the CLEO detector corresponding to an integrated luminosity of [symbol: see text] = 5.63 pb(-1) on the peak of the psi(2S) [3.08 x 10(6) psi(2S) decays] and 20.70 pb(-1) at square root of[s] = 3.67 GeV, we report first measurements of the branching fractions for the following 13 decay modes of the psi(2S): eta3pi, &eta'3pi, rhoK+K-, K+K-pi+pi-pi0, 2(K+K-), 2(K+K-)pi0, rhopp, pppi+pi-pi0, etapp, ppK+K-, lambdalambdapi+pi-, lambdapK+, and lambdapK+pi+pi-, and more precise measurements of 8 previously measured modes: 2(pi+pi-), rhopi+pi-, 2(pi+pi-)pi0, omegapi+pi-, K+K-pi+pi-, omegaK+K-, phiK+K-, and pppi+pi-. We also report new branching fraction measurements of phipi+pi- and omegapp and upper limits for etapi+pi-, etaK+K-, and phivpp. Results are compared, where possible, with the corresponding J/psi branching ratios to provide new tests of the 12% rule.
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Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Phillips EA, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shepherd MR, Stroiney S, Sun WM, Urner D, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Williams J, Wiss J, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Mahmood AH, Severini H, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shibata EI, Shipsey IPJ, Adams GS, Chasse M, Cravey M, Cummings JP, Danko I, Napolitano J, He Q, Muramatsu H, Park CS, Park W, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Briere RA, Chen GP, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL. Branching fractions for psi(2S)-to-J/psi transitions. PHYSICAL REVIEW LETTERS 2005; 94:232002. [PMID: 16090461 DOI: 10.1103/physrevlett.94.232002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2005] [Indexed: 05/03/2023]
Abstract
We describe new measurements of the inclusive and exclusive branching fractions for psi(2S) transitions to J/psi using e(+)e(-) collision data collected with the CLEO detector operating at CESR. All branching fractions and ratios of branching fractions reported here represent either the most precise measurements to date or the first direct measurements. Indirectly and in combination with other CLEO measurements, we determine B(chi(cJ) --> gamma(J/psi)) and B[psi(2S) --> light hadrons].
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189
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Hinson JW, Huang GS, Lee J, Miller DH, Pavlunin V, Rangarajan R, Sanghi B, Shibata EI, Shipsey IPJ, Cronin-Hennessy D, Park CS, Park W, Thayer JB, Thorndike EH, Coan TE, Gao YS, Liu F, Stroynowski R, Artuso M, Boulahouache C, Blusk S, Dambasuren E, Dorjkhaidav O, Mountain R, Muramatsu H, Nandakumar R, Skwarnicki T, Stone S, Wang JC, Csorna SE, Danko I, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Bornheim A, Lipeles E, Pappas SP, Shapiro A, Sun WM, Weinstein AJ, Briere RA, Chen GP, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Adam NE, Alexander JP, Berkelman K, Boisvert V, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Magerkurth A, Mahlke-Krüger H, Meyer TO, Mistry NB, Patterson JR, Peterson D, Pivarski J, Richichi SJ, Riley D, Sadoff AJ, Schwarthoff H, Shepherd MR, Thayer JG, Urner D, Wilksen T, Warburton A, Weinberger M, Athar SB, Avery P, Breva-Newell L, Potlia V, Stoeck H, Yelton J, Benslama K, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Lowrey N, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Besson D, Anderson S, Frolov VV, Gong DT, Kubota Y, Li SZ, Poling R, Smith A, Stepaniak CJ, Urheim J, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ahmed S, Alam MS, Ernst J, Jian L, Saleem M, Wappler F, Arms K, Eckhart E, Gan KK, Gwon C, Honscheid K, Kagan H, Kass R, Pedlar TK, von Toerne E, Severini H, Skubic P, Dytman SA, Mueller JA, Nam S, Savinov V. Improved measurement of the form factors in the decay lambda+c-->lambda + nue. PHYSICAL REVIEW LETTERS 2005; 94:191801. [PMID: 16090160 DOI: 10.1103/physrevlett.94.191801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2004] [Indexed: 05/03/2023]
Abstract
Using the CLEO detector at the Cornell Electron Storage Ring, we have studied the distribution of kinematic variables in the decay lambda(+)(c)lambda--> e(+)nu(e). By performing a four-dimensional maximum likelihood fit, we determine the form factor ratio, R= f(2)/f(1) = -0.31 +/- 0.05(stat) +/- 0.04(syst), the pole mass, M(pole) = [2.21 +/- 0.08(stat) +/- 0.14(syst)] GeV/c(2), and the decay asymmetry parameter of the lambda(+)(c), alpha (lambda(c)) = -0.86 +/-0.03(stat) +/- 0.02(syst), for q(2) = 0.67 (GeV/c(2))(2). We compare the angular distributions of the lambda(+)(c) and lambda(-)(c) and find no evidence for CP violation: A(lambda(c)) = (alpha(lambda(c)) + alpha (lambda(c)))/(alpha(lambda(c))-alpha(lambda(c))) = 0.00 +/- 0.03(stat) +/- 0.01(syst) +/- 0.02, where the third error is from the uncertainty in the world average of the CP-violating parameter, A(lambda), for ppi(-).
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Muramatsu H, Hayashi T, Kim YA, Endo M, Terrones M, Dresselhaus MS. Growth of double-walled carbon nanotubes using a conditioning catalyst. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2005; 5:404-8. [PMID: 15913246 DOI: 10.1166/jnn.2005.060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Here we describe the effect of different synthetic conditions on the quality and purity of double-walled carbon nanotubes (DWNTs) with the aid of a conditioning catalyst. By lowering the reaction temperature down to 875 degrees C and utilizing a conditioning catalyst, increased purity and a decreased inner diameter of the DWNTs was achieved, while adverse results were observed with increasing reaction temperature. Based on detailed high-resolution transmission electron microscopy studies on the diameter distribution of the tubes, preferential growth conditions for DWNTs over single-wall carbon nanotubes are identified solely from increased carbon solubility considerations (caused by an increased portion of active carbon species by use of Mo) for the same distribution of metal particles.
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191
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Endo M, Muramatsu H, Hayashi T, Kim YA, Terrones M, Dresselhaus MS. Nanotechnology: 'buckypaper' from coaxial nanotubes. Nature 2005; 433:476. [PMID: 15690030 DOI: 10.1038/433476a] [Citation(s) in RCA: 207] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Double-walled carbon nanotubes are needed in a pure, highly crystalline form before features such as their electronic properties, thermal transport and mechanical behaviour can be investigated. Here we fabricate a paper-like material that consists of hexagonally packed bundles of clean, coaxial carbon nanotubes whose double walls vary little in diameter; it is prepared in high yields using chemical-vapour deposition with a conditioning catalyst and two-step purification. Our results will enable investigation of the physical properties of double-walled carbon nanotubes, which are predicted to be superior to those of both their single- and multiwalled relatives.
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Endo M, Muramatsu H, Hayashi T, Kim YA, Terrones M, Dresselhaus MS. Nanotechnology: 'buckypaper' from coaxial nanotubes. Nature 2005. [PMID: 15690030 DOI: 10.1038/nature433476a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
Double-walled carbon nanotubes are needed in a pure, highly crystalline form before features such as their electronic properties, thermal transport and mechanical behaviour can be investigated. Here we fabricate a paper-like material that consists of hexagonally packed bundles of clean, coaxial carbon nanotubes whose double walls vary little in diameter; it is prepared in high yields using chemical-vapour deposition with a conditioning catalyst and two-step purification. Our results will enable investigation of the physical properties of double-walled carbon nanotubes, which are predicted to be superior to those of both their single- and multiwalled relatives.
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193
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Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Li J, Menaa N, Mountain R, Muramatsu H, Nandakumar R, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Bornheim A, Pappas SP, Weinstein AJ, Rosner JL, Briere RA, Chen GP, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shepherd MR, Stroiney S, Sun WM, Thayer JG, Urner D, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, Williams J, Wiss J, Edwards KW, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Kubota Y, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Stepaniak CJ, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Mahmood AH, Arms K, Gan KK, Severini H, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shibata EI, Shipsey IPJ, Adams GS, Chasse M, Cravey M, Cummings JP, Danko I, Napolitano J, Park CS, Park W, Thayer JB, Thorndike EH, Coan TE, Gao YS, Liu F, Stroynowski R. Photon transitions in Upsilon(2S) and Upsilon(3S) decays. PHYSICAL REVIEW LETTERS 2005; 94:032001. [PMID: 15698251 DOI: 10.1103/physrevlett.94.032001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2004] [Indexed: 05/24/2023]
Abstract
We have studied the inclusive photon spectra in Upsilon(2S) and Upsilon(3S) decays using a large statistics data sample obtained with the CLEO III detector. We present the most precise measurements of electric dipole (E1) photon transition rates and photon energies for Upsilon(2S) --> gammachi(bJ)(1P) and Upsilon(3S) --> gammachi(bJ)(2P) (J = 0, 1, 2). We measure the rate for a rare E1 transition Upsilon(3S) --> gammachi(b0)(1P) for the first time. We also set upper limits on the rates for the hindered magnetic dipole (M1) transitions to the eta(b)(1S) and eta(b)(2S) states.
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Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Mahmood AH, Severini H, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shibata EI, Shipsey IPJ, Adams GS, Chasse M, Cravey M, Cummings JP, Danko I, Napolitano J, Cronin-Hennessy D, Park CS, Park W, Thayer JB, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Menaa N, Mountain R, Muramatsu H, Nandakumar R, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Bornheim A, Pappas SP, Weinstein AJ, Rosner JL, Briere RA, Chen GP, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Adam NE, Alexander JP, Berkelman K, Cassel DG, Crede V, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shepherd MR, Stroiney S, Sun WM, Thayer JG, Urner D, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, Williams J, Wiss J, Edwards KW, Besson D, Pedlar TK, Gao KY, Gong DT, Kubota Y, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Stepaniak CJ. Search for X(3872) in gammagamma fusion and radiative production at CLEO. PHYSICAL REVIEW LETTERS 2005; 94:032004. [PMID: 15698254 DOI: 10.1103/physrevlett.94.032004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2004] [Indexed: 05/24/2023]
Abstract
We report on a search for the recently reported X(3872) state using 15.1 fb(-1) of e(+)e(-) data taken in the sqrt[s] = 9.46-11.30 GeV region. Separate searches for the production of the X(3872) in untagged gammagamma fusion and e(+)e(-) annihilation following initial state radiation are made by taking advantage of the unique angular correlation between the leptons from the decay J/psi --> l(+)l(-) in X(3872) decay to pi(+)pi(-)J/psi. No signals are observed in either case, and 90% confidence upper limits are established as (2J+1)Gamma(gammagamma)(X(3872))B(X --> pi(+)pi(-)J/psi) < 12.9 eV and Gamma(ee)(X(3872))B(X- -> pi(+)pi(-)J/psi) < 8.3 eV.
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195
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Tosa Y, Muramatsu H, Hukushiyama H, Otsuka T, Satoh K, Hosaka Y. Reduction of Ischemia-Reperfusion Injury to Skin Flaps by Monoclonal Antibody to Leukocyte Endothelial Adhesion Molecule-1. Wound Repair Regen 2005. [DOI: 10.1111/j.1067-1927.2005.130116s.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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196
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Huang GS, Miller DH, Pavlunin V, Sanghi B, Shibata EI, Shipsey IPJ, Adams GS, Chasse M, Cummings JP, Danko I, Napolitano J, Cronin-Hennessy D, Park CS, Park W, Thayer JB, Thorndike EH, Coan TE, Gao YS, Liu F, Stroynowski R, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Menaa N, Mountain R, Muramatsu H, Nandakumar R, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Mahmood AH, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Bornheim A, Lipeles E, Pappas SP, Weinstein AJ, Briere RA, Chen GP, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Pedlar TK, Peterson D, Pivarski J, Riley D, Rosner JL, Ryd A, Sadoff AJ, Schwarthoff H, Shepherd MR, Sun WM, Thayer JG, Urner D, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, Williams J, Wiss J, Edwards KW, Besson D, Gao KY, Gong DT, Kubota Y, Li SZ, Poling R, Scott AW, Smith A, Stepaniak CJ, Urheim J, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Arms K, Gan KK, Severini H, Skubic P, Asner DM, Dytman SA, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J. Study of the semileptonic charm decays D(0)-->pi(-)l(+)nu and D(0)-->K(-)l(+)nu. PHYSICAL REVIEW LETTERS 2005; 94:011802. [PMID: 15698066 DOI: 10.1103/physrevlett.94.011802] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2004] [Indexed: 05/24/2023]
Abstract
We investigate the decays D(0)-->pi(-)l(+)nu and D(0)-->K(-)l(+)nu, where l is e or mu, using approximately 7 fb(-1) of data collected with the CLEO III detector. We find R(0) identical with B(D(0)-->pi(-)e(+)nu)/B(D(0)-->K(-)e(+)nu)=0.082+/-0.006+/-0.005. Fits to the kinematic distributions of the data provide parameters describing the form factor of each mode. Combining the form factor results and R(0) gives |f(pi)(+)(0)|(2)|V(cd)|(2)/|f(K)(+)(0)|(2)|V(cs)|(2)=0.038(+0.006+0.005)(-0.007-0.003).
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197
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Adams GS, Chasse M, Cravey M, Cummings JP, Danko I, Napolitano J, Cronin-Hennessy D, Park CS, Park W, Thayer JB, Thorndike EH, Coan TE, Gao YS, Liu F, Stroynowski R, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Menaa N, Mountain R, Muramatsu H, Nandakumar R, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Bornheim A, Pappas SP, Weinstein AJ, Briere RA, Chen GP, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Rosner JL, Ryd A, Sadoff AJ, Schwarthoff H, Shepherd MR, Sun WM, Thayer JG, Urner D, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, Williams J, Wiss J, Edwards KW, Besson D, Gao KY, Gong DT, Kubota Y, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Stepaniak CJ, Urheim J, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Mahmood AH, Arms K, Gan KK, Asner DM, Dytman SA, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shibata EI, Shipsey IPJ. Measurement of the muonic branching fractions of the narrow upsilon resonances. PHYSICAL REVIEW LETTERS 2005; 94:012001. [PMID: 15698068 DOI: 10.1103/physrevlett.94.012001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2004] [Indexed: 05/24/2023]
Abstract
The decay branching fractions of the three narrow Upsilon resonances to mu(+)mu(-) have been measured by analyzing about 4.3 fb(-1) e(+)e(-) data collected with the CLEO III detector. The branching fraction B(Upsilon(1S)-->mu(+)mu(-))=(2.49+/-0.02+/-0.07)% is consistent with the current world average, but B(Upsilon(2S)-->mu(+)mu(-))=(2.03+/-0.03+/-0.08)% and B(Upsilon(3S)-->mu(+)mu(-))=(2.39+/-0.07+/-0.10)% are significantly larger than prior results. These new muonic branching fractions imply a narrower total decay width for the Upsilon(2S) and Upsilon(3S) resonances and lower other branching fractions that rely on these decays in their determination.
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198
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Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Rosner JL, Ryd A, Sadoff AJ, Schwarthoff H, Shepherd MR, Sun WM, Thayer JG, Urner D, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, Williams J, Wiss J, Edwards KW, Besson D, Gao KY, Gong DT, Kubota Y, Li SZ, Poling R, Scott AW, Smith A, Stepaniak CJ, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Mahmood AH, Severini H, Asner DM, Dytman SA, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shibata EI, Shipsey IPJ, Adams GS, Chasse M, Cummings JP, Danko I, Napolitano J, Cronin-Hennessy D, Park CS, Park W, Thayer JB, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Menaa N, Mountain R, Muramatsu H, Nandakumar R, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Briere RA, Chen GP, Ferguson T, Tatishvili G, Vogel H, Watkins ME. Observation of 1(-)0(-) final states from psi(2S) decays and e(+)e(-) annihilation. PHYSICAL REVIEW LETTERS 2005; 94:012005. [PMID: 15698072 DOI: 10.1103/physrevlett.94.012005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2004] [Indexed: 05/24/2023]
Abstract
Using CLEO data collected from CESR e(+)e(-) collisions at the psi(2S) resonance and nearby continuum at sqrt[s]=3.67 GeV, we report the first significantly nonzero measurements of light vector-pseudoscalar hadron pair production (including rhopi, omegapi, rhoeta, and K(*0)K0 ) and the pi(+)pi(-)pi(0) final state, both from psi(2S) decays and direct e(+)e(-) annihilation.
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199
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Muramatsu H, Kim YA, Hayashi T, Endo M, Yonemoto A, Arikai H, Okino F, Touhara H. Fluorination of double-walled carbon nanotubes. Chem Commun (Camb) 2005:2002-4. [PMID: 15834486 DOI: 10.1039/b416393a] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorine atoms are selectively attached to the sidewall of the outer shell of DWNTs without disrupting the double-layered morphology; the stoichiometry of the fluorinated DWNTs is CF(0.30).
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200
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Bornheim A, Lipeles E, Pappas SP, Weinstein AJ, Briere RA, Chen GP, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gittelman B, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Rosner JL, Ryd A, Sadoff AJ, Schwarthoff H, Shepherd MR, Sun WM, Thayer JG, Urner D, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, Williams J, Wiss J, Edwards KW, Besson D, Gao KY, Gong DT, Kubota Y, Li SZ, Poling R, Scott AW, Smith A, Stepaniak CJ, Urheim J, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Arms K, Gan KK, Severini H, Skubic P, Asner DM, Dytman SA, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shibata EI, Shipsey IPJ, Adams GS, Chasse M, Cummings JP, Danko I, Napolitano J, Cronin-Hennessy D, Park CS, Park W, Thayer JB, Thorndike EH, Coan TE, Gao YS, Liu F, Stroynowski R, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Menaa N, Mountain R, Muramatsu H, Nandakumar R, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Mahmood AH, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M. Search for the lepton-flavor-violating leptonic B(0)-->mu(+/-)tau(-/+) and B(0)-->e(+/-)tau(-/+). PHYSICAL REVIEW LETTERS 2004; 93:241802. [PMID: 15697794 DOI: 10.1103/physrevlett.93.241802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2004] [Indexed: 05/24/2023]
Abstract
We have searched a sample of 9.6 x 10(6) BB events for the lepton-flavor-violating leptonic B decays, B(0)-->mu(+/-)tau(-/+) and B(0)-->e(+/-)tau(-/+). The tau lepton was detected through the decay modes tau-->lnunu(-) , where l=e, mu. There is no indication of a signal, and we obtain the 90% confidence level upper limits B(B(0)-->mu(+/-)tau(-/+))<3.8 x 10(-5) and B(B(0)-->e(+/-)tau(-/+))<1.3 x 10(-4).
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