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Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Savinov V, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F. Study of tau decays to six pions and a neutrino. PHYSICAL REVIEW LETTERS 2001; 86:4467-4471. [PMID: 11384261 DOI: 10.1103/physrevlett.86.4467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2000] [Indexed: 05/23/2023]
Abstract
The tau decays to six-pion final states have been studied with the CLEO detector at the Cornell Electron Storage Ring. The measured branching fractions are B(tau(-)-->2pi(-)pi(+)3pi(0)nu(tau)) = (2.2+/-0.3+/-0.4)x10(-4) and B(tau(-)-->3pi(-)2pi(+)pi(0)nu(tau)) = (1.7+/-0.2+/-0.2)x10(-4). A search for substructure in these decays shows that they are saturated by intermediate states with eta or omega mesons. We present the first observation of the decay tau(-)-->2pi(-)pi(+)omega(nu)tau and the branching fraction is measured to be (1.2+/-0.2+/-0.1)x10(-4). The measured branching fractions are in good agreement with the isospin expectations but somewhat below the conserved-vector-current predictions.
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Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Savinov V, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T. Observation of new states decaying into Lambda+(c)pi(-)pi(+). PHYSICAL REVIEW LETTERS 2001; 86:4479-4482. [PMID: 11384263 DOI: 10.1103/physrevlett.86.4479] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2000] [Indexed: 05/23/2023]
Abstract
Using 13.7 fb(-1) of data recorded by the CLEO detector at the Cornell Electron Storage Ring, we investigate the spectrum of charmed baryons which decay into Lambda+(c)pi(-)pi(+) and are more massive than the Lambda+(c)(2625) baryon. We find evidence for two new states: one is broad and has an invariant mass roughly 480 MeV above that of the Lambda+(c) baryon; the other is narrow with an invariant mass of 596+/-1+/-2 MeV above the Lambda+(c) mass.
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Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Bornheim A, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Jaffe DE, Masek G, Paar HP, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Ferguson T, Vogel H, Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Savinov V, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH. Evidence of New States Decaying into Xi(*)(c)pi. PHYSICAL REVIEW LETTERS 2001; 86:4243-4246. [PMID: 11328145 DOI: 10.1103/physrevlett.86.4243] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2000] [Indexed: 05/23/2023]
Abstract
Using 13.7 fb(-1) of data recorded by the CLEO detector at Cornell Electron Storage Ring, we report evidence of two new charmed baryons: one decaying into Xi(0')(c)pi(+) with the subsequent decay Xi(0')(c)-->Xi(0)(c)gamma, and its isospin partner decaying into Xi(+')(c)pi(-) followed by Xi(+')(c)-->Xi(+)(c)gamma. We measure the following mass differences for the two states: M(Xi(0)(c)gammapi(+))-M(Xi(0)(c)) = 318.2+/-1.3+/-2.9 MeV and M(Xi(+)(c)gammapi(-))-M(Xi(+)(c)) = 324.0+/-1.3+/-3.0 MeV. We interpret these new states as the J(P) = 1 / 2(-) Xi(c1) particles, the charmed-strange analogs of the Lambda(+)(c1)(2593).
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Sheridan R, Shapiro A, Kay D, Petras L, Lydon M. Initial experience with a prototype staple detector. THE JOURNAL OF BURN CARE & REHABILITATION 2001; 22:232-4. [PMID: 11403246 DOI: 10.1097/00004630-200105000-00009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Stainless steel staples can be overgrown by granulation tissue or skin grafts and become buried in tissue. Although they are generally asymptomatic, they can on rare occasion erode to the surface or complicate the radiographic evaluation of pain not related to the staples. A device to facilitate detection of retained staples would be desirable, but it has been difficult to develop because stainless steel staples have poor magnetic and conductive properties. A prototype device, based on the presence of metal disturbing a low-power electromagnetic field, was developed. With human studies committee approval, this miniaturized detector was used in 13 burn patients to detect staples during planned removal of large numbers of staples. Staples were first removed using visual inspection and palpation of the wounds. This was followed by use of the staple detector. The age of the patients was 10.8 +/- 3.3 years, and burn size was 54.6 +/- 8.8% of the body surface. In 8 (62%) of the patients one or more additional staples were detected by the device that would otherwise have been overlooked. In 4 (31%) of the patients there was a false-positive signal, possibly related to topical silver in the wounds, that required additional focused physical examination. A portable staple detector has been developed. Initial experience with the device is favorable and warrants an expanded trial, which is in the planning stages.
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Briere RA, Chen GP, Ferguson T, Vogel H, Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Savinov V, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Boulahouache C, Bukin K, Dambasuren E, Majumder G, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Bornheim A, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Jaffe DE, Mahapatra R, Masek G, Paar HP, Asner DM, Eppich A, Hill TS, Morrison RJ. Observation of B --> phiK and B --> phiK*. PHYSICAL REVIEW LETTERS 2001; 86:3718-3721. [PMID: 11329307 DOI: 10.1103/physrevlett.86.3718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2001] [Indexed: 05/23/2023]
Abstract
We have studied two-body charmless hadronic decays of B mesons into the final states straight phiK and phiK(*). Using 9.7 million B&Bmacr; pairs collected with the CLEO II detector, we observe the decays B- --> phiK- and B0--> phiK(*0) with the following branching fractions: B(B--->phiK-) = (5.5(+2.1)(-1.8)+/-0.6)x10(-6) and B(B0--> phiK(*0)) = (11.5(+4.5+1.8)(-3.7-1.7))x10(-6). We also see evidence for the decays B0-->phiK0 and B---> phiK(*-). However, since the statistical significance is not overwhelming for these modes, we determine upper limits of <12.3x10(-6) and <22.5x10(-6) ( 90% confidence level), respectively.
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Cronin-Hennessy D, Lyon AL, Thorndike EH, Savinov V, Coan TE, Fadeyev V, Gao YS, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Wang JC, Wolf A, Wu J, Kopp S, Kostin M, Mahmood AH, Csorna SE, Danko I, McLean KW, Xu Z, Godang R, Bonvicini G, Cinabro D, Dubrovin M, McGee S, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Gritsan A, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Drell PS, Duboscq JE, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Hsu L, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Palmer M, Patterson JR, Peterson D, Riley D, Romano A, Thayer JG, Urner D, Valant-Spaight B, Viehhauser G, Warburton A, Avery P, Prescott C, Rubiera AI, Stoeck H, Yelton J, Brandenburg G, Ershov A, Kim DY, Wilson R, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V. Observation of the Omega(0)(c) Charmed Baryon at CLEO. PHYSICAL REVIEW LETTERS 2001; 86:3730-3734. [PMID: 11329310 DOI: 10.1103/physrevlett.86.3730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2000] [Indexed: 05/23/2023]
Abstract
The CLEO experiment at the CESR collider has used 13.7 fb(-1) of data to search for the production of the Omega(0)(c) (css ground state) in e(+)e(-) collisions at square root of (s) approximately 10.6 GeV. The modes used to study the Omega(0)(c) are Omega(-)pi(+), Omega(-)pi(+)pi(0), Xi-K-pi(+)pi(+), Xi0K-pi(+), and Omega(-)pi(+)pi(+)pi(-). We observe a signal of 40.4+/-9.0(stat) events at a mass of 2694.6+/-2.6(stat)+/-1.9(syst) MeV/c(2), for all modes combined.
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Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Ugolini D, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Ferguson T, Vogel H, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Thies PG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R. Search for B --> tau(nu) and B --> K(nu)nu. PHYSICAL REVIEW LETTERS 2001; 86:2950-2954. [PMID: 11290080 DOI: 10.1103/physrevlett.86.2950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2000] [Indexed: 05/23/2023]
Abstract
We report results of a search for B-->tau(nu) in a sample of 9.7 x 10(6) charged B meson decays. We exclusively reconstruct the companion B decay to suppress background. We set an upper limit on the branching fraction B(B-->tau(nu))<8.4 x 10(-4) at 90% confidence level. We also establish B(B+/--->K+/-nu(nu))<2.4 x 10(-4) at 90% confidence level.
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Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Thies PG, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Mahmood AH, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Menon N, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Kwon Y, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Ugolini D, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG. Measurement of the relative branching fraction of upsilon(4S) to charged and neutral B-meson pairs. PHYSICAL REVIEW LETTERS 2001; 86:2737-2741. [PMID: 11290027 DOI: 10.1103/physrevlett.86.2737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2000] [Indexed: 05/23/2023]
Abstract
We analyze 9.7x10(6) B_B pairs recorded with the CLEO detector to determine the production ratio of charged to neutral B-meson pairs produced at the Upsilon(4S) resonance. We measure the rates for B0-->J/psiK((*)0) and B+-->J/psiK((*)+) decays and use the world-average B-meson lifetime ratio to extract the relative widths f(+-) / f(00) = gamma(Upsilon(4S)-->B+B-) / gamma(Upsilon(4S)-->B0 B-0)) = 1.04+/-0.07(stat)+/-0.04(syst). With the assumption that f(+-)+f(00) = 1, we obtain f(00) = 0.49+/-0.02(stat)+/-0.01(syst) and f(+-) = 0.51+/-0.02(stat)+/-0.01(syst). This production ratio and its uncertainty apply to all exclusive B-meson branching fractions measured at the Upsilon(4S) resonance.
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Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X. First observation of the decays B(0) --> D(*-)p_p pi+ and B(0) --> D(*-)p_n. PHYSICAL REVIEW LETTERS 2001; 86:2732-2736. [PMID: 11290026 DOI: 10.1103/physrevlett.86.2732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2000] [Indexed: 05/23/2023]
Abstract
We report the first observation of exclusive decays of the type B-->D(*)N_NX, where N is a nucleon. Using a sample of 9.7x10(6)B_B pairs collected with the CLEO detector operating at the Cornell Electron Storage Ring, we measure the branching fractions B(B0-->D(*-)p_p pi(+)) = (6.5(+1.3)(-1.2)+/-1.0)x10(-4) and B(B0-->D(*-)p_n) = (14.5(+3.4)(-3.0)+/-2.7)x10(-4). Antineutrons are identified by their annihilation in the CsI electromagnetic calorimeter.
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Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Nelson HN, Briere RA, Chen GP, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kandaswamy J, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S. Measurement of the lambda(+)(c) lifetime. PHYSICAL REVIEW LETTERS 2001; 86:2232-2236. [PMID: 11289897 DOI: 10.1103/physrevlett.86.2232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2000] [Indexed: 05/23/2023]
Abstract
The Lambda+c lifetime is measured using 9.0 fb(-1) of e+e- annihilation data collected on or just below the Upsilon(4S) resonance with the CLEO II.V detector at CESR. Using an unbinned maximum likelihood fit, the Lambda+c lifetime is measured to be 179.6+/-6.9(stat)+/-4.4(syst) fs. The precision of this colliding beam measurement is comparable to other measurements, which are based on fixed-target experiments, with different systematic uncertainties.
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Abstract
The majority of children with cancer receive therapy as participants in clinical research protocols coordinated by national pediatric cooperative groups. One of the highest priorities of these groups is the development of novel therapies. Due to differences in the biology of pediatric and adult tumors and in physiology between adults and children, it is usually necessary to evaluate the safety and effectiveness of new drugs separately in adult and pediatric populations. To stimulate the development of new therapies for pediatric indications and encourage the submission of clinical data to support pediatric product labeling, the U.S. Food and Drug Administration has undertaken two initiatives. In 1998 the FDA issued a regulation (The 1998 Final Pediatric Rule) that mandated if a drug or biological is under review for a claim and the disease exists in both pediatric and adult populations, pediatric studies must be performed. Section 111 of the FDA Modernization Act of 1997 states that if a drug product has exclusivity based on a patent or marketing license, the exclusivity can be extended by six months for the submission of pediatric data to the FDA. The incentive applies to both approved drugs and those under development. These initiatives are intended to enhance access to new anticancer therapies and promote labeling for pediatric oncology indications.
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Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Chen GP, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ. First observation of the sigma(*+)(c) baryon and a new measurement of the sigma(*+)(c) mass. PHYSICAL REVIEW LETTERS 2001; 86:1167-1170. [PMID: 11178035 DOI: 10.1103/physrevlett.86.1167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2000] [Indexed: 05/23/2023]
Abstract
Using data recorded with the CLEO II and CLEO II.V detector configurations at the Cornell Electron Storage Rings, we report the first observation and mass measurement of the Sigma(*+)(c) charmed baryon, and an updated measurement of the mass of the Sigma(+)(c) baryon. We find M(Sigma(*+)(c))-M(Lambda(+)(c)) = (231.0+/-1.1+/-2.0) MeV, and M(Sigma(+)(c))-M(Lambda(+)(c)) = (166.4+/-0.2+/-0.3) MeV, where the errors are statistical and systematic, respectively.
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Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Ugolini D, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Thies PG, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J. Study of B Decays to Charmonium States: B-->eta(c)K and B --> chi(c0)K. PHYSICAL REVIEW LETTERS 2001; 86:30-34. [PMID: 11136086 DOI: 10.1103/physrevlett.86.30] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2000] [Indexed: 05/23/2023]
Abstract
In a sample of 9.66x10(6)B&Bmacr; pairs collected with the CLEO detector we make the first observation of B decays to an eta(c) and a kaon. We measure branching fractions B(B+-->eta(c)K+) = (0.69(+0.26)(-0.21)+/-0.08+/-0.20)x10(-3) and B(B degrees -->eta(c)K degrees ) = (1.09(+0.55)(-0.42)+/-0.12+/-0.31)x10(-3), where the first error is statistical, the second is systematic, and the third is from the eta(c) branching fraction uncertainty. From these we extract the eta(c) decay constant in the factorization approximation, f(eta(c)) = 335+/-75 MeV. We also search for B decays to a chi(c0) and a kaon. No evidence for a signal is found and we set 90% C.L. upper limits: B(B+-->chi(c0)K+)<4.8x10(-4) and B(B degrees -->chi(c0)K degrees )<5.0x10(-4).
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Fredman B, Zohar E, Tarabykin A, Shapiro A, Mayo A, Klein E, Jedeikin R. Bupivacaine wound instillation via an electronic patient-controlled analgesia device and a double-catheter system does not decrease postoperative pain or opioid requirements after major abdominal surgery. Anesth Analg 2001; 92:189-93. [PMID: 11133625 DOI: 10.1097/00000539-200101000-00036] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
UNLABELLED To assess the analgesic efficacy of patient-controlled bupivacaine wound instillation, 50 patients undergoing major intraabdominal surgery were enrolled into this prospective, placebo-controlled, double-blinded study. In all cases, a standard general anesthetic was administered. On completion of surgery, two multihole 20-gauge epidural catheters were tunneled through the proximal and distal apices of the surgical wound and placed above the fascia such that the tips were at the margin of the first and second thirds of the surgical wound, respectively. Postoperatively, a patient-controlled analgesia (PCA) device was connected to the instillation system. Either bupivacaine 0.25% (Bupivacaine Group) or an equal volume of sterile water (Control Group) was administered. The PCA device was programmed to deliver 9.0 mL with a 60-min lockout interval and no basal infusion. During the first six postoperative hours, a coinvestigator administered "rescue" morphine (2 mg IV). Thereafter, meperidine 1 mg/kg IM was administered on patient request for additional analgesia. Instillation attempts and actual number of injections were similar between the groups. The mean number of pump infusions and the mean "rescue" opioid requirements during the 24-h study period were similar between the groups. The total "rescue" morphine administered during the first six postoperative hours was 16 +/- 17 mg vs 18 +/- 14 mg for the Bupivacaine and Control Groups, respectively. The total meperidine administered during this period was 1.6 +/- 1.4 mg/kg and 2 +/- 1.2 mg/kg for the Bupivacaine and Control Groups, respectively. Preoperatively, hourly for the first six postoperative hours, and on removal of the instillation catheter, patient-generated visual analog scales for pain were similar at rest, on coughing, and after leg raise. In conclusion, bupivacaine wound instillation via an electronic PCA device and a double-catheter system does not decrease postoperative opioid requirements after surgery performed through a midline incision. IMPLICATIONS After major abdominal surgery performed through a 20-cm incision, repeated 0.25% bupivacaine wound instillation via an electronic patient-controlled analgesia device and a double-catheter system does not decrease postoperative pain or opioid requirements.
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Benedict R, Shapiro A, Priore R, Miller C, Munschauer F, Jacobs L. Neuropsychological counseling improves social behavior in cognitively-impaired multiple sclerosis patients. ACTA ACUST UNITED AC 2000. [DOI: 10.1191/135245800701566377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Benedict RH, Shapiro A, Priore R, Miller C, Munschauer F, Jacobs L. Neuropsychological counseling improves social behavior in cognitively-impaired multiple sclerosis patients. Mult Scler 2000; 6:391-6. [PMID: 11212135 DOI: 10.1177/135245850000600606] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We studied the effectiveness of a newly-developed cognitive-behavioral intervention in 15 patients with marked cognitive impairment and behavior disorder. The design was a single-blind test of a neuropsychological intervention, with pre- and post-treatment assessments of personality and social behavior. MS patients underwent neurological examination and neuropsychological testing at baseline. The patients were then randomly assigned to neuropsychological counseling or standard, non-specific supportive psychotherapy. The active 12-week treatment emphasized enhancement of insight through education, social skills training, and behavior modification. All patients were re-examined within 2 weeks of the termination of treatment. Neuropsychological technicians were blind to treatment condition. Both groups showed evidence of cognitive impairment and personality/behavior disorder prior to treatment and were well matched on demographic, disability, and cognitive measures. Patients who underwent neuropsychological counseling showed significant positive response on measures of social behavior (e.g. excessive ego-centric speech) compared to those who underwent standard counseling. We conclude that these data support the use of non-pharmacological, neuropsychological counseling in patients with acquired, MS-associated behavior disorder.
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Fredman B, Shapiro A, Zohar E, Feldman E, Shorer S, Rawal N, Jedeikin R. The analgesic efficacy of patient-controlled ropivacaine instillation after Cesarean delivery. Anesth Analg 2000; 91:1436-40. [PMID: 11093995 DOI: 10.1097/00000539-200012000-00025] [Citation(s) in RCA: 138] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To assess the efficacy and safety of wound instillation of ropivacaine, when administered via a patient-controlled elastometric pump, 50 term parturients undergoing cesarean delivery were enrolled into this prospective, placebo-controlled, double-blinded study. In all cases, a standard spinal anesthetic was administered. After the surgery, a multihole 20-gauge epidural catheter (B. Braun, Melsungen, Germany) was placed above the fascia such that the tip was sited at the point that demarcated 50% of the length of the surgical wound. Thereafter, the catheter was connected to the elastometric pump. According to a computer-generated randomization schedule, the pump was filled with either ropivacaine 0.2% (Ropivacaine Group) or an equal volume of sterile water (Control Group). Postoperatively, patient-controlled analgesia was administered via the elastometric pump. During the first 6 postoperative hours, a coinvestigator administered "rescue" morphine (2 mg, IV). Thereafter, "rescue" dipyrone (1 g) was administered on patient request. In a subset of 10 patients, blood ropivacaine levels were assessed. Compared with the Control Group, significantly fewer patients in the Ropivacaine Group received "rescue" morphine (92% vs. 48%, respectively) (P<0.01). The total "rescue" morphine administered during the first 6 postoperative hours was 2+/-3 mg vs. 10+/-5 mg (P<0.01) for the Ropivacaine and Control Groups, respectively. Patient-generated resting pain scores were similar between the groups. However, pain scores generated after coughing and leg raise were significantly (P<0.04) less in the Ropivacaine Group. More patients in the Ropivacaine Group than in the Control Group described their analgesia as good or excellent. In the subset of patients (n = 10) studied, unbound ropivacaine blood levels were below the toxic threshold (600 ng/mL). However, blood ropivacaine accumulation was noted. All patients stated that the elastometric pump was easy to use. Ropivacaine wound instillation via an elastometric pump is a simple technique that provides safe and effective analgesia after cesarean delivery.
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Golijanin D, Shapiro A, Pode D. Immunostaining of cytokeratin 20 in cells from voided urine for detection of bladder cancer. J Urol 2000; 164:1922-5. [PMID: 11061882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
PURPOSE Cytokeratin 20 is a cytoskeletal protein expressed in colon and bladder cancer cells but only rarely in normal urothelium. Previous studies have shown that identification of RNA coded for cytokeratin 20 in urine samples using polymerase chain reaction is highly sensitive for detection of bladder tumors. We examined the efficacy of immunocytology on cells from voided urine samples using monoclonal antibodies against cytokeratin 20 for noninvasive detection of bladder tumors. MATERIALS AND METHODS A total of 174 patients comprised the study, including 80 who were evaluated because of hematuria or irritative voiding symptoms and 94 who were examined during followup visits after resection of bladder tumors. Voided urine samples were obtained for immunocytology and cytopathology. Each patient underwent cystoscopy, and biopsies were done when a bladder tumor was detected or carcinoma in situ was suspected. Indirect immunoperoxidase staining was done on cytocentrifuge slides using a monoclonal antibody against cytokeratin 20. RESULTS Bladder tumors were found in 87 patients. Immunocytology resulted in 81.6% sensitivity, 77% specificity and 80% accuracy. False-negative results occurred in 12 patients with superficial low grade tumors and in 4 with high grade invasive tumors. Cytopathology resulted in 51.7% sensitivity and 94.2% specificity. CONCLUSIONS Immunocytology of the cytokeratin 20 antigen is significantly more sensitive than cytopathology for bladder tumor detection, especially low grade and low stage cancer. The results are not affected by inflammation or previous treatments with bacillus Calmette-Guerin. Immunocytology may miss high grade tumors and, therefore, cannot be used alone as a substitute for cystoscopy.
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Fredman B, Zohar E, Tarabykin A, Shapiro A, Jedeikin R. Continuous intravenous diclofenac does not induce opioid-sparing or improve analgesia in geriatric patients undergoing major orthopedic surgery. J Clin Anesth 2000; 12:531-6. [PMID: 11137414 DOI: 10.1016/s0952-8180(00)00212-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
STUDY OBJECTIVE To assess the analgesic efficacy and perioperative opioid-sparing effects of adjuvant intravenous (IV) diclofenac. DESIGN Prospective, controlled, double-blind study. SETTING Large referral hospital. PATIENTS 40 ASA physical status I, II, and III geriatric patients (>65 years) undergoing open reduction and internal fixation of subcapital fracture of the femur. INTERVENTIONS A standardized general anesthetic was administered. On induction of anesthesia, patients in the diclofenac group received an IV bolus of diclofenac (0.7 mg/kg) followed by a constant infusion (0.15 mg/kg/hr) until the end of surgery. In the saline group, an equal volume of saline was administered. "Rescue" fentanyl was administered in response to an increase in mean arterial pressure or heart rate (exceeding 20% of the patient's preinduction "baseline" values) that did not respond to a 30% increase in the inspired isoflurane concentration. Postoperative pain was assessed using a four-point patient-generated pain score (1 = none, 2 = mild, 3 = moderate, 4 = severe) as well as number of attempts and actual morphine delivered via a patient-controlled analgesia (PCA) device. MEASUREMENTS AND MAIN RESULTS The two treatment groups were demographically comparable. The perioperative hemodynamic variables, as well as the induction and "rescue" fentanyl dosages, were unaffected by the treatment modality. Pain scores, PCA attempts, and actual morphine delivered were statistically similar between the two groups. CONCLUSIONS Adjuvant IV diclofenac does not improve intraoperative stability or decrease postoperative opioid requirements in geriatric patients undergoing internal fixation of subcapital fracture of the femur.
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Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Stepaniak CJ, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Eckhart E, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi SJ, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Ugolini D, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Mahmood AH, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas SP, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Briere RA, Ferguson T, Vogel H, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Galik RS, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Thies PG, Urner D, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J. Measurements of the mass, total width, and two-photon partial width of the eta(c) meson. PHYSICAL REVIEW LETTERS 2000; 85:3095-3099. [PMID: 11019275 DOI: 10.1103/physrevlett.85.3095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2000] [Indexed: 05/23/2023]
Abstract
Using 13.4 fb(-1) of data collected with the CLEO detector at the Cornell Electron Storage Ring, we have observed 300 events for the two-photon production of ground-state pseudoscalar charmonium in the decay eta(c)-->K(0)(S)K-/+pi(+/-). We have measured the eta(c) mass to be [2980.4+/-2.3 (stat)+/-0.6 (syst)] MeV and its full width as [27.0+/-5.8 (stat)+/-1.4 (syst)] MeV. We have determined the two-photon partial width of the eta(c) meson to be [7.6+/-0.8 (stat)+/-0.4 (syst)+/-2.3 (br)] keV, with the last uncertainty associated with the decay branching fraction.
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171
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Jessop CP, Marsiske H, Perl ML, Savinov V, Ugolini D, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayad R, Boulahouache C, Bukin K, Dambasuren E, Karamov S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehhauser G, Wang JC, Wolf A, Wu J, Kopp S, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Kinoshita K, Lai IC, Schrenk S, Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Würthwein F, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Nelson HN, Briere RA, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD, Kreinick DL, Lohner M, Magerkurth A, Meyer TO, Mistry NB, Nordberg E, Patterson JR, Peterson D, Riley D, Thayer JG, Thies PG, Valant-Spaight B, Warburton A, Avery P, Prescott C, Rubiera AI, Yelton J, Zheng J, Brandenburg G, Ershov A, Gao YS, Kim DY, Wilson R, Browder TE, Li Y, Rodriguez JL, Yamamoto H, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Plager C, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Janicek R, Patel PM, Sadoff AJ, Ammar R, Bean A, Besson D, Davis R, Kwak N, Zhao X, Anderson S, Frolov VV, Kubota Y, Lee SJ, Mahapatra R, O'Neill JJ, Poling R, Riehle T, Smith A, Urheim J, Ahmed S, Alam MS, Athar SB, Jian L, Ling L, Mahmood AH, Saleem M, Timm S, Wappler F, Anastassov A, Duboscq JE, Gan KK, Gwon C, Hart T, Honscheid K, Hufnagel D, Kagan H, Kass R, Pedlar TK, Schwarthoff H, Thayer JB, von Toerne E, Zoeller MM, Richichi J, Severini H, Skubic P, Undrus A, Chen S, Fast J, Hinson JW, Lee J, Menon N, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessy D, Kwon Y, Lyon AL, Thorndike EH. Study of charmless hadronic B meson decays to pseudoscalar-vector final states. PHYSICAL REVIEW LETTERS 2000; 85:2881-2885. [PMID: 11005959 DOI: 10.1103/physrevlett.85.2881] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2000] [Indexed: 05/23/2023]
Abstract
We report results of searches for charmless hadronic B meson decays to pseudoscalar( pi(+/-), K+/-, pi(0), or K(0)(S))-vector( rho, K(*), or omega) final states. By using 9.7x10(6) BB pairs collected with the CLEO detector, we report the first observation of B(-)--->pi(-)rho(0), B(0)-->pi(+/-)rho(-/+), and B(-)-->pi(-)omega, which are expected to be dominated by hadronic b-->u transitions. The measured branching fractions are (10.4(+3.3)(-3.4)+/-2.1)x10(-6), (27.6(+8.4)(-7.4)+/-4.2)x10(-6), and (11.3(+3.3)(-2.9)+/-1. 4)x10(-6), respectively. Branching fraction upper limits are set for all of the other decay modes investigated.
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172
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Gofrit ON, Shenfeld OZ, Katz R, Shapiro A, Landau EH, Pode D. [Penile prosthesis for erectile dysfunction--long-term follow-up]. HAREFUAH 2000; 139:183-6, 247. [PMID: 11062947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Our armamentarium for the treatment of erectile dysfunction has recently been expanded by addition of Viagra and the MUSE. However, their long-term results are still unknown. The insertion of a penile prosthesis is invasive, expensive, and irreversible, but under optimal condition provides an acceptable, definitive solution for erectile dysfunction. We evaluated our long-term results with penile prosthesis insertion (PPI). From 1987-1998, 57 patients underwent PPI in our department. Mean age was 55 years and the common causes of erectile dysfunction were atherosclerotic disease (23), radical pelvic surgery (15), and diabetes mellitus (14). Semirigid prostheses were inserted in 12 and inflatable prostheses in 45, including 42 single-component and 3 multi-component prostheses. Recently we interviewed these patients by telephone, using a standard questionnaire. Those not satisfied with the surgical results (83% of the living patients) were examined in our clinic. Mean follow-up was 53 months. In 37 (84%) the prosthesis was mechanically functional (rates after 1, 5 and 10 years were 87.8%, 80%, and 75%, respectively). In only 2 (2.5%) had serious complications led to prosthesis removal. All mechanical failures had occurred in those with inflatable prostheses after a mean of 48.5 months (range 4-113). At the time of the survey 68% were sexually active and 64% were satisfied with the surgical result. We conclude that PPI is safe treatment for erectile dysfunction. Although the rate of mechanically functioning prostheses decreases with time, modern multi-component prostheses may lead to better mechanical results.
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173
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Chen S, Fast J, Hinson JW, Lee J, Menon N, Miller DH, Shibata EI, Shipsey IP, Pavlunin V, Cronin-Hennessey D, Kwon Y, Lyon AL, Thorndike EH, Jessop CP, Marsiske H, Perl ML, Savinov V, Ugolini D, Zhou X, Coan TE, Fadeyev V, Maravin Y, Narsky I, Stroynowski R, Ye J, Wlodek T, Artuso M, Ayaad R, Boulahouache C, Bukin K, Dambasuren E, Karamnov S, Kopp S, Majumder G, Moneti GC, Mountain R, Schuh S, Skwarnicki T, Stone S, Viehauser G, Wang JC, Wolf A, Wu J, Csorna SE, Danko I, McLean KW, Márka S, Xu Z, Godang R, Shapiro A. Measurement of charge asymmetries in charmless hadronic B meson decays. PHYSICAL REVIEW LETTERS 2000; 85:525-529. [PMID: 10991331 DOI: 10.1103/physrevlett.85.525] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/1999] [Indexed: 05/23/2023]
Abstract
We search for CP-violating charge asymmetries (alpha(CP)) in the B meson decays to K(+/-)pi(-/+), K(+/-)pi(0), K(0)(S)pi(+/-), K(+/-)eta('), and omega pi(+/-). Using 9.66 million upsilon(4S) decays collected with the CLEO detector, the statistical precision on alpha(CP) is in the range of +/-0.12 to +/-0.25 depending on decay mode. While CP-violating asymmetries of up to +/-0.5 are possible within the standard model, the measured asymmetries are consistent with zero in all five decay modes studied.
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174
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Wiestner A, Padosch SA, Ghilardi N, Cesar JM, Odriozola J, Shapiro A, Skoda RC. Hereditary thrombocythaemia is a genetically heterogeneous disorder: exclusion of TPO and MPL in two families with hereditary thrombocythaemia. Br J Haematol 2000; 110:104-9. [PMID: 10930985 DOI: 10.1046/j.1365-2141.2000.02169.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Hereditary thrombocythaemia (HT) is an autosomal dominant disorder with clinical presentation and complications resembling sporadic essential thrombocythaemia (ET). Mutations in the thrombopoietin (TPO) gene causing overproduction of TPO and elevated TPO serum levels have been found previously in three families with HT. Here, we present evidence for genetic heterogeneity by demonstrating that HT in a Spanish and a US family is caused by genes other than TPO. Affected family members in both families had normal TPO serum levels. Genetic linkage analysis with TPO microsatellite markers excluded TPO as the disease gene in the Spanish HT family, and sequencing of the TPO gene revealed no mutations in the propositus of the US family. To test a role for MPL, the gene for the TPO receptor, we identified three single nucleotide polymorphisms (SNP) and a novel polymorphic CA microsatellite marker. By linkage analysis, we excluded MPL as the cause of HT in the Spanish family. Interestingly, mapping of the CA microsatellite marker to a region 40.5 kb upstream of MPL revealed the presence of sequences from the TIE gene, which encodes a tyrosine kinase receptor expressed on megakaryocytes and endothelial cells. Thus, MPL and TIE are in close physical proximity, and the CA microsatellite described here will be a useful genetic marker for both genes.
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175
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Bonvicini G, Cinabro D, McGee S, Perera LP, Zhou GJ, Lipeles E, Pappas S, Schmidtler M, Shapiro A, Sun WM, Weinstein AJ, Jaffe DE, Masek G, Paar HP, Potter EM, Prell S, Sharma V, Asner DM, Eppich A, Hill TS, Morrison RJ, Nelson HN, Briere RA, Behrens BH, Ford WT, Gritsan A, Roy J, Smith JG, Alexander JP, Baker R, Bebek C, Berger BE, Berkelman K, Blanc F, Boisvert V, Cassel DG, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Foland AD, Gaidarev P, Gibbons L, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Hopman PI, Jones CD. Search for CP violation in B+/- --> J/psiK+/- and B+/- --> psi(2S)K+/- decays. PHYSICAL REVIEW LETTERS 2000; 84:5940-5944. [PMID: 10991094 DOI: 10.1103/physrevlett.84.5940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2000] [Indexed: 05/23/2023]
Abstract
We present a search for direct CP violation in B+/--->J/psiK+/- and B+/--->psi(2S)K+/- decays. In a sample of 9.7x10(6) B&Bmacr; meson pairs collected with the CLEO detector, we have fully reconstructed 534 B+/--->J/psiK+/- and 120 B+/--->psi(2S)K+/- decays with very low background. We have measured the CP-violating charge asymmetry to be [+1.8+/-4.3(stat)+/-0.4(syst)]% for B+/--->J/psiK+/- and [+2.0+/-9. 1(stat)+/-1.0(syst)]% for B+/--->psi(2S)K+/-.
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