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Hsu L, Rozeski J, Aubin C, Peterson C, Menias C, Lewis L. 52. Ann Emerg Med 2006. [DOI: 10.1016/j.annemergmed.2006.07.500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zhang C, Austin MA, Edwards KL, Farin FM, Li N, Hsu L, Srinouanprachanh SL, Williams MA. Functional variants of the lipoprotein lipase gene and the risk of preeclampsia among non-Hispanic Caucasian women. Clin Genet 2006; 69:33-9. [PMID: 16451134 DOI: 10.1111/j.1399-0004.2005.00541.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Hypertriglyceridemia is an important pathophysiologic feature of preeclampsia, a common vascular disorder of pregnancy. Three well-documented functional variants (N291S, S447X, and D9N) of the lipoprotein lipase gene were related to hypertriglyceridemia. Results from the only two studies concerning the relationship between these variants and preeclampsia risk have been inconsistent. We investigated this relationship in a case-control study including 144 preeclamptic and 290 normotensive pregnant women (all non-Hispanic Caucasians). We estimated odds ratios (OR) and 95% confidence intervals (CI) adjusted for maternal age, pre-pregnancy body mass index, and parity. After adjusting for covariates, women with the 291 N/S or S/S genotype had significantly increased risk of preeclampsia (OR 6.9, 95% CI 1.9-25.4) compared with women with the common 291N/N genotype. The 447 S/X or X/X genotype was not significantly associated with preeclampsia risk. The frequency of the 9N variant allele was 1.8% in controls, while this allele was not observed among cases. Haplotype 9D/291S/447S was strongly associated with higher risk of preeclampsia as compared with the most common haplotype 9D/291N/447S (adjusted OR 6.6, 95% CI 1.7-25.0). Results from our study support the thesis that abnormal lipid metabolism is important in the pathogenesis of preeclampsia.
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Talos IF, Mian AZ, Zou KH, Hsu L, Goldberg-Zimring D, Haker S, Bhagwat JG, Mulkern RV. Magnetic resonance and the human brain: anatomy, function and metabolism. Cell Mol Life Sci 2006; 63:1106-24. [PMID: 16568243 PMCID: PMC11136333 DOI: 10.1007/s00018-005-5522-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The introduction and development, over the last three decades, of magnetic resonance (MR) imaging and MR spectroscopy technology for in vivo studies of the human brain represents a truly remarkable achievement, with enormous scientific and clinical ramifications. These effectively non-invasive techniques allow for studies of the anatomy, the function and the metabolism of the living human brain. They have allowed for new understandings of how the healthy brain works and have provided insights into the mechanisms underlying multiple disease processes which affect the brain. Different MR techniques have been developed for studying anatomy, function and metabolism. The primary focus of this review is to describe these different methodologies and to briefly review how they are being employed to more fully appreciate the intricacies associated with the organ, which most distinctly differentiates the human species from the other animal forms on earth.
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Araki T, Enomoto S, Furuno K, Gando Y, Ichimura K, Ikeda H, Inoue K, Kishimoto Y, Koga M, Koseki Y, Maeda T, Mitsui T, Motoki M, Nakajima K, Nakamura K, Ogawa H, Ogawa M, Owada K, Ricol JS, Shimizu I, Shirai J, Suekane F, Suzuki A, Tada K, Takeuchi S, Tamae K, Tsuda Y, Watanabe H, Busenitz J, Classen T, Djurcic Z, Keefer G, Leonard DS, Piepke A, Yakushev E, Berger BE, Chan YD, Decowski MP, Dwyer DA, Freedman SJ, Fujikawa BK, Goldman J, Gray F, Heeger KM, Hsu L, Lesko KT, Luk KB, Murayama H, O'Donnell T, Poon AWP, Steiner HM, Winslow LA, Jillings C, Mauger C, McKeown RD, Vogel P, Zhang C, Lane CE, Miletic T, Guillian G, Learned JG, Maricic J, Matsuno S, Pakvasa S, Horton-Smith GA, Dazeley S, Hatakeyama S, Rojas A, Svoboda R, Dieterle BD, Detwiler J, Gratta G, Ishii K, Tolich N, Uchida Y, Batygov M, Bugg W, Efremenko Y, Kamyshkov Y, Kozlov A, Nakamura Y, Karwowski HJ, Markoff DM, Rohm RM, Tornow W, Wendell R, Chen MJ, Wang YF, Piquemal F. Search for the invisible decay of neutrons with KamLAND. PHYSICAL REVIEW LETTERS 2006; 96:101802. [PMID: 16605724 DOI: 10.1103/physrevlett.96.101802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2005] [Indexed: 05/08/2023]
Abstract
The Kamioka Liquid scintillator Anti-Neutrino Detector is used in a search for single neutron or two-neutron intranuclear disappearance that would produce holes in the -shell energy level of (12)C nuclei. Such holes could be created as a result of nucleon decay into invisible modes (inv), e.g., n--> 3v or nn--> 2v. The deexcitation of the corresponding daughter nucleus results in a sequence of space and time-correlated events observable in the liquid scintillator detector. We report on new limits for one- and two-neutron disappearance: tau(n--> inv) > 5.8 x 10(29) years and tau (nn--> inv) > 1.4 x 10(30) years at 90% C.L. These results represent an improvement of factors of approximately 3 and >10(4) and over previous experiments.
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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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81
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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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82
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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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Araki T, Enomoto S, Furuno K, Gando Y, Ichimura K, Ikeda H, Inoue K, Kishimoto Y, Koga M, Koseki Y, Maeda T, Mitsui T, Motoki M, Nakajima K, Ogawa H, Ogawa M, Owada K, Ricol JS, Shimizu I, Shirai J, Suekane F, Suzuki A, Tada K, Takeuchi S, Tamae K, Tsuda Y, Watanabe H, Busenitz J, Classen T, Djurcic Z, Keefer G, Leonard D, Piepke A, Yakushev E, Berger BE, Chan YD, Decowski MP, Dwyer DA, Freedman SJ, Fujikawa BK, Goldman J, Gray F, Heeger KM, Hsu L, Lesko KT, Luk KB, Murayama H, O'Donnell T, Poon AWP, Steiner HM, Winslow LA, Mauger C, McKeown RD, Vogel P, Lane CE, Miletic T, Guillian G, Learned JG, Maricic J, Matsuno S, Pakvasa S, Horton-Smith GA, Dazeley S, Hatakeyama S, Rojas A, Svoboda R, Dieterle BD, Detwiler J, Gratta G, Ishii K, Tolich N, Uchida Y, Batygov M, Bugg W, Efremenko Y, Kamyshkov Y, Kozlov A, Nakamura Y, Karwowski HJ, Markoff DM, Nakamura K, Rohm RM, Tornow W, Wendell R, Chen MJ, Wang YF, Piquemal F. Experimental investigation of geologically produced antineutrinos with KamLAND. Nature 2005; 436:499-503. [PMID: 16049478 DOI: 10.1038/nature03980] [Citation(s) in RCA: 296] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2005] [Accepted: 07/04/2005] [Indexed: 11/09/2022]
Abstract
The detection of electron antineutrinos produced by natural radioactivity in the Earth could yield important geophysical information. The Kamioka liquid scintillator antineutrino detector (KamLAND) has the sensitivity to detect electron antineutrinos produced by the decay of 238U and 232Th within the Earth. Earth composition models suggest that the radiogenic power from these isotope decays is 16 TW, approximately half of the total measured heat dissipation rate from the Earth. Here we present results from a search for geoneutrinos with KamLAND. Assuming a Th/U mass concentration ratio of 3.9, the 90 per cent confidence interval for the total number of geoneutrinos detected is 4.5 to 54.2. This result is consistent with the central value of 19 predicted by geophysical models. Although our present data have limited statistical power, they nevertheless provide by direct means an upper limit (60 TW) for the radiogenic power of U and Th in the Earth, a quantity that is currently poorly constrained.
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84
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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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85
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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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86
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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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87
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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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88
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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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89
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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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90
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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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91
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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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92
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Rubin P, Eisenstein BI, Gollin GD, Karliner I, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, Williams 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, Eckhart E, 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, 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. First observation and Dalitz analysis of the D0-->K(0)Setapi(0) decay. PHYSICAL REVIEW LETTERS 2004; 93:111801. [PMID: 15447329 DOI: 10.1103/physrevlett.93.111801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2004] [Indexed: 05/24/2023]
Abstract
Using 9.0 fb(-1) of integrated luminosity in e(+)e(-) collisions near the Upsilon(4S) mass collected with the CLEO II.V detector we report the first observation of the decay D0-->K(0)(S)etapi(0). We measure the ratio of branching fractions, BR(D0-->K(0)(S)etapi(0))BR / (D0-->K(0)(S)pi(0))=0.46+/-0.07+/-0.06. We perform a Dalitz analysis of 155 selected D0-->K(0)(S)etapi(0) candidates and find leading contributions from a(0)(980)K(0)(S) and K(*)(892)eta intermediate states.
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93
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Coan TE, Gao YS, Liu F, Stroynowski R, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Haynes J, 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, Shapiro A, 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, Kuznetsov VE, Magerkurth A, Mahlke-Krüger H, Meyer TO, Patterson JR, Pedlar TK, Peterson D, Pivarski J, Riley D, Sadoff AJ, Schwarthoff H, Shepherd MR, Sun WM, Thayer JG, Urner D, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Potlia V, Stoeck H, Yelton J, Eisenstein BI, Gollin GD, Karliner I, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, Williams 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, Arms K, Eckhart E, Gan KK, Gwon C, Severini H, Skubic P, Asner DM, Dytman SA, Mehrabyan S, Mueller JA, Nam S, Savinov V, 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. Wess-Zumino current and the structure of the decay tau- -->K- pi- K+ nu tau. PHYSICAL REVIEW LETTERS 2004; 92:232001. [PMID: 15245150 DOI: 10.1103/physrevlett.92.232001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2003] [Indexed: 05/24/2023]
Abstract
We present the first study of the vector (Wess-Zumino) current in tau(-)-->K-pi-K+nu(tau) decay using data collected with the CLEO III detector at the Cornell Electron Storage Ring. We determine the quantitative contributions to the decay width from the vector and axial vector currents. Within the framework of a model by Kühn and Mirkes, we identify the quantitative contributions to the total decay rate from the intermediate states omegapi, rho(')pi, and K*K.
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94
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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, Mahmood AH, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, 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, Kuznetsov VE, Magerkurth A, Mahlke-Krüger H, Meyer TO, Mistry NB, Patterson JR, Pedlar TK, 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, Eisenstein BI, Gollin GD, Karliner I, Lowrey N, Plager C, Sedlack C, Selen M, Thaler JJ, Williams 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, Eckhart E, Gan KK, Gwon C, Severini H, Skubic P, Dytman SA, Mueller JA, Nam S, Savinov V, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shibata EI, Shipsey IPJ, Danko I. Observation of the Hadronic transitions chi(b1,2)(2P)-->omegaUpsilon(1S). PHYSICAL REVIEW LETTERS 2004; 92:222002. [PMID: 15245215 DOI: 10.1103/physrevlett.92.222002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2003] [Indexed: 05/24/2023]
Abstract
The CLEO Collaboration has made the first observations of hadronic transitions among bottomonium (bbmacr;) states other than the dipion transitions among Upsilon(nS) states. In our study of Upsilon(3S) decays, we find a significant signal for Upsilon(3S)-->gammaomegaUpsilon(1S) that is consistent with radiative decays Upsilon(3S)-->gammachi(b1,2)(2P), followed by chi(b1,2)(2P)-->omegaUpsilon(1S). The branching ratios we obtain are B[chi(b1)(2P)-->omegaUpsilon(1S)]=(1.63(+0.35+0.16)(-0.31-0.15))% and B[chi(b2)(2P)-->omegaUpsilon(1S)]=(1.10(+0.32+0.11)(-0.28-0.10))%, in which the first error is statistical and the second is systematic.
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95
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Asner DM, Dytman SA, Mehrabyan S, Mueller JA, Nam S, Savinov V, 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, Haynes J, 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, Shapiro A, Weinstein AJ, Mahapatra R, Nelson HN, 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, Kuznetsov VE, Magerkurth A, Mahlke-Krüger H, Meyer TO, Patterson JR, Pedlar TK, Peterson D, Pivarski J, Riley D, Sadoff AJ, Schwarthoff H, Shepherd MR, Sun WM, Thayer JG, Urner D, Wilksen T, Weinberger M, Athar SB, Avery P, Breva-Newell L, Potlia V, Stoeck H, Yelton J, Eisenstein BI, Gollin GD, Karliner I, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, Williams 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, Arms K, Eckhart E, Gan KK, Gwon C, Severini H, Skubic P. Observation of eta'c production in gammagamma fusion at CLEO. PHYSICAL REVIEW LETTERS 2004; 92:142001. [PMID: 15089529 DOI: 10.1103/physrevlett.92.142001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2003] [Indexed: 05/24/2023]
Abstract
We report on the observation of the eta(')(c)(2(1)S0), the radial excitation of the eta(c)(1(1)S0) ground state of charmonium, in the two-photon fusion reaction gammagamma-->eta(')(c)-->K(0)(S)K+/-pi(-/+) in 13.6 fb(-1) of CLEO II/II.V data and 13.1 fb(-1) of CLEO III data. We obtain M(eta(')(c))=3642.9+/-3.1(stat)+/-1.5(syst) MeV and M(eta(c))=2981.8+/-1.3(stat)+/-1.5(syst) MeV. The corresponding values of hyperfine splittings between 1S0 and 3S1 states are DeltaM(hf)(1S)=115.1+/-2.0 MeV and DeltaM(hf)(2S)=43.1+/-3.4 MeV. Assuming that the eta(c) and eta(')(c) have equal branching fractions to K(S)Kpi, we obtain Gamma(gammagamma)(eta(')(c))=1.3+/-0.6 keV.
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Danko I, Cronin-Hennessy D, Park C, Park W, Thayer J, Thorndike E, Coan T, Gao Y, 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 J, Mahmood A, Csorna S, Bonvicini G, Cinabro D, Dubrovin M, Bornheim A, Lipeles E, Pappas S, Shapiro A, Sun W, Weinstein A, Briere R, Chen G, Ferguson T, Tatishvili G, Vogel H, Watkins M, Adam N, Alexander J, Berkelman K, Boisvert V, Cassel D, Duboscq J, Ecklund K, Ehrlich R, Galik R, Gibbons L, Gittelman B, Gray S, Hartill D, Heltsley B, Hsu L, Jones C, Kandaswamy J, Kreinick D, Kuznetsov V, Magerkurth A, Mahlke-Krüger H, Meyer T, Mistry N, Patterson J, Pedlar T, Peterson D, Pivarski J, Richichi S, Riley D, Sadoff A, Schwarthoff H, Shepherd M, Thayer J, Urner D, Wilksen T, Warburton A, Weinberger M, Athar S, Avery P, Breva-Newell L, Potlia V, Stoeck H, Yelton J, Eisenstein B, Gollin G, Karliner I, Lowrey N, Plager C, Sedlack C, Selen M, Thaler J, Williams J, Edwards K, Besson D, Gao K, Gong D, Kubota Y, Li S, Poling R, Scott A, Smith A, Stepaniak C, Urheim J, Metreveli Z, Seth K, Tomaradze A, Zweber P, Ernst J, Arms K, Eckhart E, Gan K, Gwon C, Severini H, Skubic P, Dytman S, Mueller J, Nam S, Savinov V, Huang G, Miller D, Pavlunin V, Sanghi B, Shibata E, Shipsey I. Measurement of the decay rate of Ξc0→pK-K-π+ relative to Ξc0→Ξ-π+. Int J Clin Exp Med 2004. [DOI: 10.1103/physrevd.69.052004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Peldschus K, Bartling S, Rodt T, Hsu L, Matthies HK, Kikinis R, Becker H. Multimodale 3D-Darstellung hochauflösender CT und MRT – Untersuchungen des Innenohres. ROFO-FORTSCHR RONTG 2004. [DOI: 10.1055/s-2004-828117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Houwing-Duistermaat JJ, Bijkerk C, Hsu L, Stijnen T, Slagboom EP, van Duijn CM. A unified approach to modelling linkage to quantitative and qualitative traits. Ann Hum Genet 2003; 67:457-63. [PMID: 12940918 DOI: 10.1046/j.1469-1809.2003.00033.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
For quantitative traits with a genetic component, random effects approaches are used to test for linkage at observed marker loci. We propose to use these approaches also for binary outcomes observed in sib pairs derived from a population-based cohort study. In addition to a random effect modelling correlation due to polygenic effect, a random effect is included to model the correlation between siblings due to sharing alleles identical by descent (IBD) at the observed marker locus. A two-step analysis is proposed. Firstly, score statistics are computed to test whether correlation is present in the data. Secondly, random effects models are fitted, yielding heritability estimates. To illustrate the methods, data on the contribution of the COL2A1 gene to various binary and quantitative outcomes including the presence of Heberden's nodes and bone mineral density (BMD) are analysed. For most of the traits studied, the score statistics were significant, indicating the presence of genetic effects. For BMD and for Heberden's nodes, the variance explained by the marker locus was 44% (P = 0.0008) and 15% (P = 0.38) respectively. We conclude that the score statistics can be used as a preliminary data analysis. In more sophisticated analysis, heritabilities can be estimated by fitting random effects models.
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Adam NE, Alexander JP, Berkelman K, 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-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, Eisenstein BI, Gollin GD, Karliner I, Lowrey N, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Bean A, 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, Bornheim A, Lipeles E, Pappas SP, Shapiro A, Sun WM, Weinstein AJ, Briere RA, Chen GP, Ferguson T, Tatishvili G, Vogel H. Search forB→p¯e−ν¯eXdecay using a partial reconstruction method. Int J Clin Exp Med 2003. [DOI: 10.1103/physrevd.68.012004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Hsu L, Li H, Houwing-Duistermaat JJ. A method for incorporating ages at onset in affected sibpair linkage studies. Hum Hered 2003; 54:1-12. [PMID: 12446982 DOI: 10.1159/000066693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Data with varying age at disease onset arise frequently in studies of mapping disease associated genes. Naively combining affected subjects with different ages at onset may result in a much reduced power in detecting the disease genes. In this paper we present a weighted score test statistic to detect the linkage between marker and latent disease loci using affected sibpairs, where the weight is used for assigning differential contribution due to the varying age at onset of each affected sibpair to the test statistic. We show that the weighted test has a correct type I error rate asymptotically. For an illustrative purpose, we analyze a data set from the 12th Genetic Analysis Workshop. The result shows that the weighted tests appear to be able to pinpoint the location of latent disease genes better than the mean IBD test with equal weight with respect to the age at onset. To avoid the potential power loss due to the improper weight, we propose to use a combined test statistic, taking the maximum of two tests, one that is weighted by the age-dependent penetrance function and the other that may be invariant to the age. We conduct an analytical study, comparing the combined test with weighted and equal weight with respect to age test. It shows that the combined test retains the most power of the better one of the two tests being combined.
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