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101. Search for Dark Matter Annihilations in the Sun with the 79-String IceCube Detector

Author: A. O'Murchadha, O. Engdegård, S. Hussain, D. J. Koskinen, Chris Wendt, Elisa Resconi, J. Berdermann, S. Schöneberg, Ignacio Taboada, A. Haj Ismail, J. Blumenthal, M. Wellons, Dariusz Gora, A. Goldschmidt, Peter Mészáros, M. Usner, Olga Botner, R. Bruijn, S. C. Nowicki, Allan Hallgren, C. Finley, K. Frantzen, B. Riedel, S. Schoenen, J. J. Beatty, L. Köpke, J. Auffenberg, A. Obertacke, Hans Niederhausen, M. Merck, A. Bernhard, M. Schmitz, K. Jero, W. Huelsnitz, S. Cohen, N. Kurahashi, K. Mase, Ch. Weaver, S. Bechet, K. Hoshina, J. A. Pepper, D. Heereman, A. Schukraft, O. Fadiran, Gerald Przybylski, H. S. Matis, A. Zilles, J. Posselt, M. Zoll, K. Rawlins, S. Böser, D. Bindig, M. W. E. Smith, K. Helbing, Mike Richman, M. Lesiak-Bzdak, P. Redl, E. A. Strahler, K. Schatto, G. Kohnen, A. Stößl, O. Jlelati, M. Scheel, S. Tilav, M. Krasberg, Glenn Spiczak, U. Naumann, K. H. Becker, Reina H. Maruyama, James Madsen, M. L. Benabderrahmane, M. Kowalski, T. Meures, Rasha Abbasi, R. W. Ellsworth, R. Nahnhauer, J. Miller, M. Vraeghe, Donglian Xu, P. B. Price, Hermann Kolanoski, L. Rädel, T. Ruhe, N. Whitehorn, C. De Clercq, O. Schulz, T. Waldenmaier, Juanan Aguilar, L. Brayeur, M. Soiron, D. Bertrand, J. Casey, Teresa Montaruli, B. Ruzybayev, M. Olivo, S. Yoshida, L. Schönherr, E. Jacobi, R. Ström, M. Wolf, Francis Halzen, P. Zarzhitsky, J. Becker Tjus, C. Pfendner, Christian Spiering, E. Middell, Elisa Bernardini, M. Ribordy, D. Z. Besson, Michael S. Bell, Kirill Filimonov, Markus Ackermann, B. Christy, M. Danninger, L. Paul, A. Tamburro, J. van Santen, A. Van Overloop, M. Casier, L. Schulte, L. Mohrmann, J. Eisch, V. Baum, J. Feintzeig, F. McNally, Christian Bohm, T. Schmidt, C. Pérez de los Heros, N. Pirk, T. Fischer-Wasels, Kael Hanson, Segev BenZvi, Spencer Klein, S. Seunarine, M. J. Carson, Fabian Kislat, J. C. Díaz-Vélez, S. Kopper, M. Baker, J. Lünemann, G. de Vries-Uiterweerd, H. G. Sander, Todor Stanev, Dawn Williams, M. Gurtner, Jenni Adams, K. Beattie, R. C. Bay, Steven W. Barwick, A. Franckowiak, G. C. Hill, Axel Groß, R. Hoffmann, L. Gladstone, F. Clevermann, R. Franke, D. Seckel, S. Miarecki, M. Voge, R. Eagan, H. Taavola, Kara Hoffman, A. H. Cruz Silva, J.-H. Köhne, H. Wissing, A. R. Fazely, Tyce DeYoung, P. A. Toale, T. Feusels, Paolo Desiati, S. Bohaichuk, Y. Sestayo, M. Dunkman, S. Hickford, D. Soldin, C. Kopper, G. Golup, Thomas K. Gaisser, G. B. Yodh, R. G. Stokstad, B. Eberhardt, Xinhua Bai, K. Wiebe, J. P. Yanez, N. van Eijndhoven, R. Morse, Wolfgang Rhode, J. E. Jacobsen, Marcos Santander, J. L. Kelley, E. Blaufuss, J. C. Davis, K. Clark, P. Berghaus, A. Homeier, T. Glüsenkamp, J. Kläs, M. Wallraff, Carsten Rott, Dave Nygren, Jürgen Brunner, P. Heimann, S. Euler, L. Gerhardt, Markus Ahlers, M. Bissok, D. Berley, M. G. Aartsen, J. Kunnen, Christopher Wiebusch, J. Daughhetee, B. Kaminsky, G. Kroll, J. Leute, S. Odrowski, F. Scheriau, Michael Stamatikos, Damian Pieloth, P. O. Hulth, Xianwu Xu, S. Toscano, A. M. Brown, J. A. Goodman, T. Fuchs, J. Ziemann, Albrecht Karle, Samvel Ter-Antonyan, A. Stasik, A. Schönwald, D. Ryckbosch, S. Zierke, G. W. Sullivan, K. Meagher, D. Heinen, S. H. Seo, Aya Ishihara, Darren Grant, Chun Xu, T. Salameh, S. De Ridder, C. Walck, D. Altmann, M. Labare, M. Vehring, D. F. Cowen, C. Ha, Stijn Buitink, C. Sheremata, S. Westerhoff, T. R. Wood, Kurt Woschnagg, Paul Evenson, Dmitry Chirkin, D. Bose, Alexander Kappes, T. Karg, T. Kuwabara, Klas Hultqvist, J. Kiryluk, A. Fedynitch, J. P. Rodrigues, T. Stezelberger, S. M. Saba, R. Hellauer, S. Flis, J. Dreyer, Y. Abdou, Jay Gallagher, M. J. Larson, A. Olivas, D. van der Drift, R. Wasserman, H. Landsman, D. J. Boersma, Subir Sarkar, N. Milke, George Japaridze, Aguilar Sanchez, Juan, Montaruli, Teresa, Physics, Elementary Particle Physics, and Astronomy and Astrophysics Research Group
Subjects: Particle physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, FOS: Physical sciences, General Physics and Astronomy, Cosmic ray, ddc:500.2, MASSIVE PARTICLES, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 7. Clean energy, 01 natural sciences, IceCube, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), LIMITS, WIMP, 0103 physical sciences, ddc:550, 010306 general physics, Light dark matter, CANDIDATES, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, CONSTRAINTS, CAPTURE, NEUTRINOS, Physics and Astronomy, Neutrino detector, 13. Climate action, Weakly interacting massive particles, High Energy Physics::Experiment, Cryogenic Dark Matter Search, Neutrino, Astrophysics - High Energy Astrophysical Phenomena
Abstract: We have performed a search for muon neutrinos from dark matter annihilation in the center of the Sun with the 79-string configuration of the IceCube neutrino telescope. For the first time, the DeepCore sub-array is included in the analysis, lowering the energy threshold and extending the search to the austral summer. The 317 days of data collected between June 2010 and May 2011 are consistent with the expected background from atmospheric muons and neutrinos. Upper limits are therefore set on the dark matter annihilation rate, with conversions to limits on spin-dependent and spin-independent WIMP-proton cross-sections for WIMP masses in the range 20 - 5000 GeV. These are the most stringent spin-dependent WIMP-proton cross-sections limits to date above 35 GeV., 7 pages, 3 figues
Published: 2013

102. Measurement of South Pole ice transparency with the IceCube LED calibration system

Author: M. Labare, R. Bruijn, J. A. Pepper, D. Heereman, Ch. Weaver, F. McNally, K. Hoshina, Christian Bohm, Glenn Spiczak, Segev BenZvi, Spencer Klein, B. Riedel, D. Z. Besson, Kara Hoffman, N. van Eijndhoven, U. Naumann, G. C. Hill, M. W. E. Smith, A. H. Cruz Silva, Klas Hultqvist, J. Kiryluk, K. H. Becker, Chun Xu, A. Fedynitch, J. Leute, S. Odrowski, F. Scheriau, T. Ruhe, A. O'Murchadha, N. Whitehorn, L. Brayeur, M. Wellons, L. Gladstone, H. G. Sander, Wolfgang Rhode, M. Soiron, D. Seckel, Dariusz Gora, S. Miarecki, T. Salameh, G. Kroll, L. Köpke, M. Voge, S. Hussain, K. Frantzen, A. R. Fazely, Tyce DeYoung, D. J. Koskinen, K. Rawlins, P. A. Toale, S. Bechet, R. Hellauer, L. Schönherr, E. Jacobi, J. Eisch, V. Baum, C. De Clercq, J. Auffenberg, T. Feusels, Albrecht Karle, J. E. Jacobsen, E. A. Strahler, M. Dunkman, A. Schukraft, A. Obertacke, M. Lesiak-Bzdak, P. Redl, S. Flis, M. Casier, T. R. Wood, R. Morse, C. Pfendner, A. Goldschmidt, K. Mase, T. Glüsenkamp, Paul Evenson, M. Olivo, K. Schatto, Marcos Santander, P. Heimann, Carsten Rott, Dave Nygren, L. Gerhardt, A. Bernhard, A. Schönwald, S. Schöneberg, Y. Abdou, J. Lünemann, Markus Ackermann, L. Paul, M. Bissok, O. Fadiran, Dmitry Chirkin, Kael Hanson, G. Kohnen, D. Heinen, Hermann Kolanoski, E. Middell, Elisa Bernardini, K. Meagher, S. Cohen, Michael S. Bell, S. Böser, Kirill Filimonov, R. C. Bay, D. Bose, Alexander Kappes, J.-H. Köhne, H. Wissing, M. Ribordy, Xianwu Xu, S. Toscano, James Madsen, Steven W. Barwick, T. Karg, M. L. Benabderrahmane, Jay Gallagher, M. J. Larson, M. J. Carson, Aya Ishihara, P. Berghaus, J. Kläs, R. Nahnhauer, J. P. Rodrigues, Jenni Adams, S. Euler, J. Ziemann, B. Eberhardt, T. Kuwabara, S. C. Nowicki, Allan Hallgren, T. Stezelberger, S. M. Saba, T. Fischer-Wasels, J. Kunnen, Fabian Kislat, Paolo Desiati, J. Blumenthal, S. Hickford, C. Pérez de los Heros, M. Vraeghe, A. Olivas, D. van der Drift, N. Pirk, Damian Pieloth, R. G. Stokstad, B. Ruzybayev, H. Taavola, A. M. Brown, O. Schulz, Teresa Montaruli, T. Schmidt, Ignacio Taboada, Chris Wendt, J. Miller, M. Vehring, D. F. Cowen, C. Ha, T. Fuchs, J. C. Díaz-Vélez, S. Kopper, M. Baker, D. Ryckbosch, M. Krasberg, Peter Mészáros, E. Blaufuss, J. C. Davis, C. Finley, A. Franckowiak, R. Wasserman, H. Landsman, Juanan Aguilar, J. Becker Tjus, Olga Botner, M. G. Aartsen, Michael Stamatikos, H. S. Matis, P. O. Hulth, K. Wiebe, D. J. Boersma, A. Van Overloop, G. W. Sullivan, J. J. Beatty, B. Christy, S. H. Seo, J. A. Goodman, S. Yoshida, R. Ström, M. Schmitz, K. Jero, N. Kurahashi, M. Wolf, B. Kaminsky, Francis Halzen, P. Zarzhitsky, L. Mohrmann, J. Posselt, Mike Richman, J. Feintzeig, S. Schoenen, A. Stößl, Reina H. Maruyama, S. Seunarine, L. Schulte, W. Huelsnitz, Rasha Abbasi, O. Jlelati, A. Haj Ismail, C. Kopper, G. Golup, M. Scheel, S. Tilav, A. Homeier, Gerald Przybylski, L. Rädel, A. Zilles, M. Zoll, J. Casey, D. Bindig, F. Clevermann, S. Bohaichuk, Y. Sestayo, K. Helbing, M. Usner, Jürgen Brunner, Christopher Wiebusch, J. Daughhetee, D. Soldin, Todor Stanev, Dawn Williams, J. P. Yanez, K. Clark, A. Stasik, M. Kowalski, T. Meures, N. Milke, A. Tamburro, George Japaridze, J. van Santen, R. Hoffmann, Gary Binder, Axel Groß, R. Franke, R. Eagan, Thomas K. Gaisser, G. B. Yodh, Elisa Resconi, J. Berdermann, Hans Niederhausen, D. Bertrand, M. Gurtner, Christian Spiering, Donglian Xu, P. B. Price, D. Berley, C. Walck, D. Altmann, Subir Sarkar, Stijn Buitink, C. Sheremata, S. Westerhoff, S. Zierke, Darren Grant, M. Merck, R. W. Ellsworth, J. L. Kelley, M. Wallraff, Markus Ahlers, Samvel Ter-Antonyan, T. Waldenmaier, M. Danninger, Xinhua Bai, S. De Ridder, Aguilar Sanchez, Juan, Montaruli, Teresa, Physics, and Elementary Particle Physics
Subjects: Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, South Pole ice, Photon progagation, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, ddc:500.2, 01 natural sciences, High Energy Physics - Experiment, IceCube Neutrino Observatory, IceCube, Physics::Geophysics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Calibration, ddc:530, 14. Life underwater, 010306 general physics, Absorption (electromagnetic radiation), Instrumentation, Instrumentation and Methods for Astrophysics (astro-ph.IM), Cherenkov radiation, Remote sensing, Physics, Optical properties, 010308 nuclear & particles physics, Scattering, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Photon propagation, South Poleice, Instrumentation and Detectors (physics.ins-det), Charged particle, Data set, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The IceCube Neutrino Observatory, approximately 1 km^3 in size, is now complete with 86 strings deployed in the Antarctic ice. IceCube detects the Cherenkov radiation emitted by charged particles passing through or created in the ice. To realize the full potential of the detector, the properties of light propagation in the ice in and around the detector must be well understood. This report presents a new method of fitting the model of light propagation in the ice to a data set of in-situ light source events collected with IceCube. The resulting set of derived parameters, namely the measured values of scattering and absorption coefficients vs. depth, is presented and a comparison of IceCube data with simulations based on the new model is shown. The IceCube Neutrino Observatory, approximately 1km^3 in size, is now complete with 86 strings deployed in the Antarctic ice. IceCube detects the Cherenkov radiation emitted by charged particles passing through or created in the ice. To realize the full potential of the detector, the properties of light propagation in the ice in and around the detector must be well understood. This report presents a new method of fitting the model of light propagation in the ice to a data set of in situ light source events collected with IceCube. The resulting set of derived parameters, namely the measured values of scattering and absorption coefficients vs. depth, is presented and a comparison of IceCube data with simulations based on the new model is shown.
Published: 2013

103. First Observation of PeV-Energy Neutrinos with IceCube

Author: K. Hoshina, Glenn Spiczak, J. Becker Tjus, U. Naumann, Mohamed Rameez, R. Bruijn, K. H. Becker, Matthias Vraeghe, P. O. Hulth, J. Eisch, M. Wellons, Dariusz Gora, S. Zierke, P. Hallen, Darren Grant, Sarah Nowicki, Joshua Pepper, Christian Bohm, G. C. Hill, Michael J. Baker, L. Gladstone, Dirk Heinen, D. Seckel, S. Miarecki, Timo Karg, T. Feusels, J. E. Jacobsen, Marcos Santander, L. Gerhardt, B. Kaminsky, M. J. Carson, Fabian Kislat, Jay Gallagher, M. J. Larson, J. C. Díaz-Vélez, H.-P. Bretz, Chris Wendt, Frank McNally, C. Kopper, G. Golup, A. Franckowiak, Naoko Kurahashi, D. Bertrand, J.-H. Köhne, H. Wissing, J. Auffenberg, Daniel Bindig, D. Heereman, Jürgen Brunner, D. Z. Besson, J. Leute, S. Odrowski, Larissa Paul, F. Scheriau, Carsten Rott, Dave Nygren, M. Bissok, M. Leuermann, K. Krings, Allan Hallgren, Sandro Kopper, Nathan Whitehorn, P. Berghaus, J. Kläs, S. Euler, J. Kunnen, E. Middell, Elisa Bernardini, M. Ribordy, A. Olivas, D. van der Drift, M. Wallraff, M. Voge, M. Gurtner, A. Bernhard, Xianwu Xu, S. De Ridder, Damian Pieloth, A. M. Brown, K. Schatto, G. Kohnen, R. Wasserman, Benedikt Riedel, A. R. Fazely, Tyce DeYoung, A. Stasik, Albrecht Karle, J. Ziemann, P. A. Toale, N. Milke, George Japaridze, L. Köpke, K. Rawlins, Aya Ishihara, M. Richman, S. Bechet, M. Lesiak-Bzdak, P. Redl, G. Tešić, A. Schönwald, M. L. Benabderrahmane, R. Nahnhauer, M. W. E. Smith, M. Labare, Javier Gonzalez, E. A. Strahler, J. J. Beatty, M. Olivo, Ch. Weaver, J. Blumenthal, K. Meagher, Jenni Adams, C. De Clercq, James Madsen, L. Mohrmann, L. Brayeur, M. Soiron, Michael S. Bell, Kirill Filimonov, H. S. Matis, J. Miller, Christian Spiering, A. Homeier, S. Böser, Segev BenZvi, Olga Botner, Spencer Klein, R. Hellauer, S. Flis, Hermann Kolanoski, Chad Finley, Elisa Resconi, Juanan Aguilar, V. Baum, J. Berdermann, Matt Dunkman, Markus Ackermann, Kara Hoffman, M. G. Aartsen, A. H. Cruz Silva, S. Hickford, J. Posselt, C. Pérez de los Heros, N. Pirk, O. Schulz, T. Fischer-Wasels, Teresa Montaruli, Tim Ruhe, A. Van Overloop, Christopher Wiebusch, R. G. Stokstad, Takao Kuwabara, D. Berley, Rasha Abbasi, J. Daughhetee, H. Landsman, Wolfgang Rhode, Todor Stanev, J. L. Kelley, Dawn Williams, Anatoli Fedynitch, Dennis Soldin, J. Casey, H. Taavola, Markus Ahlers, B. Christy, Seth M. Cohen, A. Schukraft, A. Stößl, A. Haj Ismail, K. Jero, E. Blaufuss, D. J. Boersma, J. C. Davis, C. Walck, D. Altmann, S. Seunarine, Francis Halzen, R. Hoffmann, K. Jagielski, P. Zarzhitsky, Matthias Wolf, Reina H. Maruyama, M. Usner, Gerald Przybylski, A. Zilles, R. Franke, M. Zoll, Dirk Ryckbosch, K. Wiebe, R. Eagan, C. Sheremata, G. W. Sullivan, M. Schmitz, S. Westerhoff, Thomas K. Gaisser, G. B. Yodh, O. Fadiran, Y. Abdou, Michael Stamatikos, B. Ruzybayev, J. A. Goodman, A. Christov, Hans Niederhausen, Samvel Ter-Antonyan, Ignacio Taboada, A. Goldschmidt, Thomas Meures, A. Tamburro, Peter Mészáros, T. Waldenmaier, M. Merck, M. Kowalski, J. P. Rodrigues, T. Stezelberger, S. M. Saba, J. van Santen, M. Danninger, Klas Hultqvist, J. Kiryluk, Gary Binder, Axel Groß, O. Jlelati, K. Frantzen, E. Pinat, M. Scheel, F. Clevermann, S. Tilav, Xinhua Bai, S. Bohaichuk, Y. Sestayo, Simona Toscano, L. Rädel, R. W. Ellsworth, Donglian Xu, J. P. Yanez, B. Eberhardt, E. Jacobi, K. Clark, M. Casier, Subir Sarkar, J. Lünemann, R. C. Bay, M. Vehring, D. F. Cowen, C. Ha, P. B. Price, T. O. B. Schmidt, T. R. Wood, Kurt Woschnagg, Paul Evenson, Dmitry Chirkin, D. Bose, Alexander Kappes, M. Krasberg, S. Yoshida, N. van Eijndhoven, G. Kroll, R. Morse, C. Pfendner, T. Salameh, Kael Hanson, T. Fuchs, Steven W. Barwick, Paolo Desiati, H. G. Sander, Chun Xu, A. Obertacke, R. Ström, L. Schulte, S. Schoenen, Thorsten Glusenkamp, W. Huelsnitz, K. Helbing, K. Mase, René Reimann, A. O'Murchadha, S. Hussain, D. J. Koskinen, S. Coenders, S. Schöneberg, J. Feintzeig, Aguilar Sanchez, Juan, Christov, Asen, Montaruli, Teresa, and Rameez, Mohamed
Subjects: SELECTION, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), ATMOSPHERIC MUON, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, General Physics and Astronomy, Flux, Cosmic ray, ddc:500.2, 01 natural sciences, CHARM, IceCube Neutrino Observatory, 0103 physical sciences, ddc:550, SCATTERING, 010303 astronomy & astrophysics, Charged current, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, SPECTRUM, Neutral current, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, ICE, Glashow resonance, PERFORMANCE, 3. Good health, Physics and Astronomy, High Energy Physics::Experiment, Neutrino, Astrophysics - High Energy Astrophysical Phenomena, SYSTEM, Astrophysics - Cosmology and Nongalactic Astrophysics, Bar (unit)
Abstract: We report on the observation of two neutrino-induced events which have an estimated deposited energy in the IceCube detector of 1.04 $\pm$ 0.16 and 1.14 $\pm$ 0.17 PeV, respectively, the highest neutrino energies observed so far. These events are consistent with fully contained particle showers induced by neutral-current $\nu_{e,\mu,\tau}$ ($\bar\nu_{e,\mu,\tau}$) or charged-current $\nu_{e}$ ($\bar\nu_{e}$) interactions within the IceCube detector. The events were discovered in a search for ultra-high energy neutrinos using data corresponding to 615.9 days effective livetime. The expected number of atmospheric background is $0.082 \pm 0.004 \text{(stat)}^{+0.041}_{-0.057} \text{(syst)}$. The probability to observe two or more candidate events under the atmospheric background-only hypothesis is $2.9\times10^{-3}$ ($2.8\sigma$) taking into account the uncertainty on the expected number of background events. These two events could be a first indication of an astrophysical neutrino flux, the moderate significance, however, does not permit a definitive conclusion at this time., Comment: 7 pages, 5 figures, 1 table, accepted for publication in Physical Review Letters
Published: 2013

104. Search for relativistic magnetic monopoles with IceCube

Author: A. O'Murchadha, J. J. Beatty, S. Hussain, D. J. Koskinen, K. Hoshina, Glenn Spiczak, K. Rawlins, U. Naumann, S. Schöneberg, L. Rädel, R. Ström, M. W. E. Smith, S. Grullon, M. J. Carson, James Madsen, J. Becker Tjus, N. van Eijndhoven, Fabian Kislat, S. Odrowski, Larissa Paul, J. Posselt, F. Scheriau, A. Franckowiak, Donglian Xu, Timo Karg, J. Feintzeig, A. Stößl, J. C. Gallagher, Reina H. Maruyama, Frank McNally, D. Z. Besson, A. Tamburro, O. Jlelati, L. Schönherr, E. Jacobi, M. Scheel, M. Soiron, Jon Dumm, T. Waldenmaier, T. Feusels, O. Schulz, M. Labare, Allan Hallgren, S. Tilav, G. Kroll, Todor Stanev, R. Hellauer, Teresa Montaruli, M. Vehring, D. F. Cowen, Sandro Kopper, C. Ha, C. Wendt, M. Kowalski, I. Taboada, J. E. Jacobsen, J. A. Goodman, N. Milke, George Japaridze, A. Homeier, H. Landsman, Nathan Whitehorn, J. Lünemann, K. Beattie, P. B. Price, Marcos Santander, M. Danninger, M. Krasberg, R. C. Bay, Juan Carlos Diaz-Velez, R. Hoffmann, R. Franke, P. Heimann, O. Engdegård, H. G. Sander, T. O. B. Schmidt, T. R. Wood, L. Gerhardt, S. Flis, C. Walck, R. Eagan, Christopher Wiebusch, Dariusz Gora, J. Daughhetee, J. van Santen, K.-H. Becker, Matt Dunkman, T. Fischer-Wasels, A. Schukraft, K. Schatto, G. Kohnen, S. Seunarine, K. Laihem, Ch. Weaver, Elisa Resconi, Thomas K. Gaisser, G. B. Yodh, J. Berdermann, Chun Xu, L. Schulte, F. Rothmaier, Kurt Woschnagg, Paul Evenson, M. Richman, J. Kunnen, Axel Groß, Rasha Abbasi, Albrecht Karle, Karen Andeen, D. R. Nygren, J. Dreyer, Dirk Ryckbosch, S. Yoshida, R. J. Lauer, K. Hultqvist, Dmitry Chirkin, Joshua Pepper, Peter Mészáros, C. Pérez de los Heros, M. Casier, Chad Finley, A. Schönwald, J. Casey, M. Schmitz, Y. Abdou, C. De Clercq, Xinhua Bai, Alexander Kappes, Darren Grant, M. Stamatikos, S. Böser, E. Middell, C. Kopper, Matthias Wolf, N. Pirk, A. Haj Ismail, P. O. Hulth, J. Eisch, David A. Williams, Kael Hanson, Markus Ahlers, Markus Ackermann, S. W. Barwick, Elisa Bernardini, M. Ribordy, M. Usner, R. Nahnhauer, A. Obertacke, G. de Vries-Uiterweerd, T. Fuchs, D. Berley, G. C. Hill, K. Meagher, Tim Ruhe, Stijn Buitink, M. Walter, A. Van Overloop, M. L. Benabderrahmane, Jenni Adams, Sarah Nowicki, K. Mase, L. Mohrmann, J. Kiryluk, A. Goldschmidt, Gerald Przybylski, R. Bruijn, Paolo Desiati, Michael J. Baker, J.-H. Köhne, H. Wissing, J. Auffenberg, A. Zilles, M. Zoll, S. Hickford, S. H. Seo, L. Brayeur, Anatoli Fedynitch, D. Heereman, Daniel Bindig, Samvel Ter-Antonyan, R. G. Stokstad, Juanan Aguilar, Takao Kuwabara, F. Descamps, S. Panknin, L. Gladstone, Dirk Heinen, R. Morse, D. Seckel, Christian Spiering, Jürgen Brunner, B. Christy, Seth M. Cohen, A. Ishihara, T. Salameh, J. Blumenthal, Naoko Kurahashi, D. Bertrand, D. Bose, K. Frantzen, S. Miarecki, A. R. Fazely, Tyce DeYoung, K. Wiebe, Benedikt Riedel, A. Stasik, E. A. Strahler, F. Clevermann, J. P. Rodrigues, P. A. Toale, Carsten Rott, Y. Sestayo, T. Stezelberger, M. Wallraff, M. Voge, M. Gurtner, S. M. Saba, Olga Botner, H. S. Matis, J. Miller, Hermann Kolanoski, V. Baum, J. P. Yanez, M. Bissok, Francis Halzen, P. Zarzhitsky, Xianwu Xu, G. W. Sullivan, O. Fadiran, C. Bohm, M. J. Larson, B. Ruzybayev, A. Olivas, D. van der Drift, J. Ziemann, D. Altmann, R. Wasserman, S. Westerhoff, S. Schoenen, Thorsten Glusenkamp, W. Huelsnitz, K. Helbing, S. Bechet, M. Lesiak-Bzdak, P. Redl, M. Olivo, Dennis Soldin, H. Taavola, Michael S. Bell, E. Blaufuss, J. C. Davis, Kirill Filimonov, Segev BenZvi, S. M. Movit, Spencer Klein, Kara Hoffman, A. H. Cruz Silva, Subir Sarkar, Wolfgang Rhode, D. J. Boersma, P. Berghaus, J. Kläs, S. Euler, Thomas Meures, Damian Pieloth, A. M. Brown, M. Merck, L. Köpke, Simona Toscano, R. W. Ellsworth, Physics, Elementary Particle Physics, Astronomy and Astrophysics Research Group, Aguilar Sanchez, Juan, and Montaruli, Teresa
Subjects: FLUX, SELECTION, AMANDA, Nuclear and High Energy Physics, Particle physics, Proton decay, Cherenkov detector, Physics beyond the Standard Model, Astrophysics::High Energy Astrophysical Phenomena, Magnetic monopole, FOS: Physical sciences, ddc:500.2, 01 natural sciences, law.invention, IceCube Neutrino Observatory, Physics::Geophysics, IceCube, law, 0103 physical sciences, Grand Unified Theory, ddc:530, NEUTRINO TELESCOPE, 010306 general physics, Cherenkov radiation, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, FIELDS, 85-05, Physics and Astronomy, Neutrino detector, Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present the first results in the search for relativistic magnetic monopoles with the IceCube detector, a subsurface neutrino telescope located in the South Polar ice cap containing a volume of 1 km$^{3}$. This analysis searches data taken on the partially completed detector during 2007 when roughly 0.2 km$^{3}$ of ice was instrumented. The lack of candidate events leads to an upper limit on the flux of relativistic magnetic monopoles of $\Phi_{\mathrm{90%C.L.}}\sim 3\e{-18}\fluxunits$ for $\beta\geq0.8$. This is a factor of 4 improvement over the previous best experimental flux limits up to a Lorentz boost $\gamma$ below $10^{7}$. This result is then interpreted for a wide range of mass and kinetic energy values., Comment: 11 pages, 11 figures. v2 is minor text edits, no changes to result
Published: 2013

105. South Pole glacial climate reconstruction from multi-borehole laser particulate stratigraphy

Author: M. Stamatikos, D. Altmann, X. W. Xu, M. Wallraff, D. Heereman, J. P. Yanez, Thomas Meures, F. Scheriau, M. Casier, C. De Clercq, S. Westerhoff, A. Schönwald, C. Ha, E. Middell, J. Leute, M. Schmitz, M. Rameez, D. Seckel, D. Bertrand, M. Vehring, M. Krasberg, S. Miarecki, K. Rawlins, S. Flis, R. Eagan, H. Wissing, Teresa Montaruli, D. Tosi, W. Huelsnitz, R. Hoffmann, J. Eisch, S. Odrowski, J. Madsen, Christian Spiering, T. Fischer-Wasels, J. C. Díaz-Vélez, D. van der Drift, S. C. Nowicki, D. Grant, L. Brayeur, C. Wendt, S. R. Klein, R. Bruijn, L. Gladstone, S. Böser, J. Miller, K. Mase, K. Wiebe, S. Kopper, U. Naumann, A. Christov, J. Jacobsen, N. Pirk, A. Obertacke, K. Helbing, H. Taavola, T. Fuchs, D. Soldin, T. Stezelberger, J. Daughhetee, D. Berley, R. Hellauer, J. J. Beatty, M. Baker, P. A. Evenson, V. Baum, S. M. Saba, H. S. Matis, M. Labare, K. Jagielski, S. Zierke, M. Usner, M. L. Benabderrahmane, S. Bohaichuk, J. L. Kelley, J. A. Goodman, S. Cohen, J. Cherwinka, J. C. Davis, J. Lünemann, R. Wasserman, G. M. Spiczak, M. J. Carson, H. Landsman, Marcos Santander, A. Fedynitch, K. Krings, Y. Sestayo, M. Gurtner, S. Yoshida, C. Pfendner, P. Desiati, Markus Ahlers, J. Kläs, M. Wellons, Dariusz Gora, M. Bissok, A. Stößl, T. Salameh, G. W. Sullivan, P. B. Price, A. H. Cruz Silva, Francis Halzen, T. Feusels, A. Stasik, I. Taboada, A. Zilles, R. Reimann, Reina H. Maruyama, E. Blaufuss, Segev BenZvi, T. R. Wood, P. Hallen, M. Voge, M. Richman, L. Mohrmann, L. Paul, N. Kurahashi, R. W. Ellsworth, A. M. Brown, K. Hultqvist, C. Walck, B. Riedel, B. Kaminsky, C. Bohm, M. Danninger, C. Pérez De Los Heros, D. F. Cowen, K. Jero, Fabian Kislat, Juanan Aguilar, J. S. Gallagher, K. Meagher, P. Redl, J. Becker Tjus, T. Kuwabara, D. Bindig, K. Filimonov, M. Merck, Kael Hanson, A. O'Murchadha, T. Karg, M. Ribordy, K. D. Hoffman, A. Karle, S. Hussain, G. Kroll, N. Milke, P. Zarzhitsky, X. Bai, L. Schulte, D. R. Nygren, M. Leuermann, E. Pinat, E. Jacobi, B. Eberhardt, Jürgen Brunner, J. Auffenberg, C. H. Wiebusch, Steven W. Barwick, M. Wolf, Elisa Bernardini, A. Groß, L. Gerhardt, E. A. Strahler, K. Woschnagg, G. Yodh, M. Lesiak-Bzdak, D. Z. Besson, G. T. Przybylski, F. McNally, B. Christy, N. Van Eijndhoven, R. Morse, Jenni Adams, M. Zoll, T. Glüsenkamp, A. Van Overloop, M. Scheel, D. R. Williams, H. Niederhausen, J. Blumenthal, M. Vraeghe, M. Dunkman, R. C. Bay, J. Casey, H. P. Bretz, Wolfgang Rhode, Olga Botner, G. Binder, C. Sheremata, Allan Hallgren, M. Soiron, A. Schukraft, M. W.E. Smith, K. Frantzen, D. J. Boersma, A. Tamburro, S. Schöneberg, D. Heinen, R. Ström, Alexander Kappes, Stephanie Hickford, K. Schatto, D. Ryckbosch, G. Golup, A. R. Fazely, D. Pieloth, A. Ishihara, D. L. Xu, K. H. Becker, L. Köpke, S. Bechet, S. Ter-Antonyan, Hermann Kolanoski, B. Ruzybayev, L. Rädel, T. Waldenmaier, O. Jlelati, A. Bernhard, P. A. Toale, N. Whitehorn, J. H. Köhne, S. Toscano, C. Finley, T. Schmidt, J. Feintzeig, O. Schulz, G. S. Japaridze, O. Fadiran, M. Olivo, D. J. Koskinen, A. Haj Ismail, Chun Xu, K. Hoshina, J. Kiryluk, G. Kohnen, A. Olivas, S. Schoenen, P. Meszaros, Carsten Rott, D. Chirkin, J. Ziemann, Michael S. Bell, S. Coenders, J. Van Santen, M. G. Aartsen, K. Clark, J. P. Rodrigues, P. Berghaus, T. De Young, G. C. Hill, D. Bose, P. O. Hulth, F. Clevermann, Rasha Abbasi, J. Kunnen, T. Ruhe, S. De Ridder, R. Nahnhauer, A. Homeier, M. J. Larson, S. Tilav, J. Posselt, Elisa Resconi, J. Berdermann, J. G. Gonzalez, R. G. Stokstad, S. Seunarine, Ch Weaver, A. Goldschmidt, M. Kowalski, A. Franckowiak, Markus Ackermann, G. Tešić, Todor Stanev, J. A. Pepper, R. Franke, H. G. Sander, Thomas K. Gaisser, S. Euler, Y. Abdou, Subir Sarkar, C. Kopper, Aguilar Sanchez, Juan, Christov, Asen, Montaruli, Teresa, Rameez, Mohamed, Physics, Elementary Particle Physics, and Vriendenkring VUB
Subjects: EPICA-DOME-C, 010504 meteorology & atmospheric sciences, DEEP ICE, Borehole, Antarctic ice sheet, DUST, ddc:500.2, ANTARCTIC ICE-SHEET, 01 natural sciences, IceCube Neutrino Observatory, IceCube, Paleontology, 0103 physical sciences, Paleoclimatology, ddc:550, CORE, Glacial period, 010303 astronomy & astrophysics, SIPLE DOME, 0105 earth and related environmental sciences, Earth-Surface Processes, geography, geography.geographical_feature_category, EAST ANTARCTICA, VOLCANIC WINTER, VOSTOK, OPTICAL-PROPERTIES, Stratigraphy, 13. Climate action, Earth and Environmental Sciences, Radiometric dating, Ice sheet, physics, Geology
Abstract: The IceCube Neutrino Observatory and its prototype, AMANDA, were built in South Pole ice, using powerful hot-water drills to cleanly bore>100 holes to depths up to 2500 m. The construction of these particle physics detectors provided a unique opportunity to examine the deep ice sheet using a variety of novel techniques. We made high-resolution particulate profiles with a laser dust logger in eight of the boreholes during detector commissioning between 2004 and 2010. The South Pole laser logs are among the most clearly resolved measurements of Antarctic dust strata during the last glacial period and can be used to reconstruct paleoclimate records in exceptional detail. Here we use manual and algorithmic matching to synthesize our South Pole measurements with ice-core and logging data from Dome C, East Antarctica. We derive impurity concentration, precision chronology, annual-layer thickness, local spatial variability, and identify several widespread volcanic ash depositions useful for dating. We also examine the interval around ∼74 ka recently isolated with radiometric dating to bracket the Toba (Sumatra) supereruption.
Published: 2013

106. Search for Galactic PeV gamma rays with the IceCube Neutrino Observatory

Author: S. Hussain, M. J. Larson, D. J. Koskinen, Naoko Kurahashi, D. Bertrand, C. Walck, A. Olivas, S. Schöneberg, D. van der Drift, O. Jlelati, D. Altmann, M. W. E. Smith, M. Wallraff, M. Voge, K. Rawlins, R. Wasserman, M. Gurtner, P. Berghaus, Thomas Meures, T. Salameh, J. Kläs, A. Haj Ismail, M. Usner, M. Scheel, S. Tilav, L. Brayeur, M. Soiron, James Madsen, D. Z. Besson, Stijn Buitink, S. Euler, J. Kunnen, C. Sheremata, S. Grullon, M. J. Carson, Rasha Abbasi, J. Kiryluk, M. Merck, L. Rädel, O. Schulz, S. Westerhoff, Damian Pieloth, S. Flis, M. Krasberg, A. M. Brown, L. Schönherr, E. Jacobi, Teresa Montaruli, Timo Karg, J. Casey, E. A. Strahler, R. Ström, Nathan Whitehorn, J. Blumenthal, T. Fuchs, J. Becker Tjus, Fabian Kislat, Hermann Kolanoski, M. Casier, Matthias Vraeghe, Ch. Weaver, L. Schulte, J. Eisch, G. de Vries-Uiterweerd, Dariusz Gora, C. Pérez de los Heros, T. Feusels, N. Pirk, S. Zierke, K. Frantzen, H. Landsman, Tim Ruhe, M. Walter, S. Bechet, Matt Dunkman, T. Fischer-Wasels, R. Hellauer, J.-H. Köhne, H. Wissing, J. E. Jacobsen, Marcos Santander, P. Heimann, F. Rothmaier, Chad Finley, A. Franckowiak, M. G. Aartsen, H. S. Matis, Olga Botner, J. Lünemann, L. Gerhardt, J. Auffenberg, M. Lesiak-Bzdak, P. Redl, S. Seunarine, M. Olivo, S. Yoshida, S. Schoenen, K. Hultqvist, J. Dreyer, V. Baum, M. Richman, A. Schukraft, J. C. Gallagher, Daniel Bindig, Jürgen Brunner, R. Morse, Karen Andeen, S. H. Seo, K. Hoshina, Joshua Pepper, Y. Abdou, Benedikt Riedel, Dirk Ryckbosch, Simona Toscano, Darren Grant, Sarah Nowicki, Glenn Spiczak, R. J. Lauer, E. Middell, Elisa Bernardini, Francis Halzen, P. Zarzhitsky, C. De Clercq, A. Stasik, Michael S. Bell, Kirill Filimonov, M. Stamatikos, S. Böser, David A. Williams, Allan Hallgren, M. Ribordy, Thorsten Glusenkamp, U. Naumann, Segev BenZvi, Spencer Klein, R. Nahnhauer, Christian Spiering, K. H. Becker, Markus Ackermann, Sandro Kopper, O. Fadiran, K. Wiebe, K. Mase, R. W. Ellsworth, M. Schmitz, L. Mohrmann, Kara Hoffman, Chun Xu, Todor Stanev, C. Wendt, Matthias Wolf, R. C. Bay, Juan Carlos Diaz-Velez, J. van Santen, R. Bruijn, D. Heereman, Carsten Rott, Dave Nygren, Gerald Przybylski, Kael Hanson, A. Goldschmidt, A. H. Cruz Silva, A. Zilles, M. Zoll, Anatoli Fedynitch, M. Bissok, R. Hoffmann, P. O. Hulth, Axel Groß, J. A. Goodman, R. Franke, Xianwu Xu, W. Huelsnitz, M. Kowalski, Wolfgang Rhode, Steven W. Barwick, S. Odrowski, Larissa Paul, F. Scheriau, R. Eagan, H. G. Sander, Thomas K. Gaisser, G. B. Yodh, C. Bohm, N. Milke, George Japaridze, Frank McNally, Jenni Adams, F. Clevermann, O. Engdegård, S. Bohaichuk, Y. Sestayo, J. Ziemann, J. P. Yanez, Albrecht Karle, J. P. Rodrigues, Elisa Resconi, T. Stezelberger, S. M. Saba, J. Berdermann, K. Helbing, S. Hickford, K. Clark, R. G. Stokstad, K. Schatto, G. Kohnen, G. W. Sullivan, Paolo Desiati, Donglian Xu, A. Schönwald, J. J. Beatty, S. Panknin, P. B. Price, Ignacio Taboada, K. Meagher, N. van Eijndhoven, Peter Mészáros, J. Posselt, T. Schmidt, A. Stößl, Subir Sarkar, L. Köpke, Reina H. Maruyama, A. Obertacke, G. Kroll, J. Feintzeig, K. Beattie, C. Kopper, G. Golup, M. L. Benabderrahmane, J. Miller, Juanan Aguilar, Takao Kuwabara, B. Christy, Seth M. Cohen, A. Ishihara, A. Homeier, Christopher Wiebusch, J. Daughhetee, Markus Ahlers, D. Berley, G. C. Hill, Michael J. Baker, F. Descamps, Dennis Soldin, Samvel Ter-Antonyan, T. R. Wood, L. Gladstone, Dirk Heinen, D. Seckel, S. Miarecki, H. Taavola, Kurt Woschnagg, Paul Evenson, E. Blaufuss, D. J. Boersma, J. C. Davis, A. R. Fazely, Tyce DeYoung, Jon Dumm, Dmitry Chirkin, P. A. Toale, T. Waldenmaier, D. Bose, Alexander Kappes, S. De Ridder, M. Danninger, A. Van Overloop, M. Labare, Xinhua Bai, B. Ruzybayev, A. Tamburro, M. Vehring, D. F. Cowen, C. Ha, A. O'Murchadha, Aguilar Sanchez, Juan, Montaruli, Teresa, Physics, Elementary Particle Physics, and KVI - Center for Advanced Radiation Technology
Subjects: Nuclear and High Energy Physics, TELESCOPE, Point source, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Astrophysics, ddc:500.2, 01 natural sciences, 7. Clean energy, IceCube Neutrino Observatory, IceCube, HESS, 0103 physical sciences, ddc:530, MILAGRO, 010306 general physics, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Muon, Gamma ray, Astrophysics::Instrumentation and Methods for Astrophysics, PLANE, Galactic plane, Air shower, Physics and Astronomy, 13. Climate action, DISCOVERY, Milagro, MOLECULAR CLOUDS, TEV, RADIATION, High Energy Physics::Experiment, Astrophysics - High Energy Astrophysical Phenomena, EMISSION
Abstract: Gamma-ray induced air showers are notable for their lack of muons, compared to hadronic showers. Hence, air shower arrays with large underground muon detectors can select a sample greatly enriched in photon showers by rejecting showers containing muons. IceCube is sensitive to muons with energies above ~500 GeV at the surface, which provides an efficient veto system for hadronic air showers with energies above 1 PeV. One year of data from the 40-string IceCube configuration was used to perform a search for point sources and a Galactic diffuse signal. No sources were found, resulting in a 90% C.L. upper limit on the ratio of gamma rays to cosmic rays of 1.2 x 10^(-3)for the flux coming from the Galactic Plane region (-80 deg < l < -30 deg; -10 deg < b < 5 deg) in the energy range 1.2 - 6.0 PeV. In the same energy range, point source fluxes with E^(-2) spectra have been excluded at a level of (E/TeV)^2 d��/dE ~ 10^(-12)-10^(-11) cm^2/s/TeV depending on source declination. The complete IceCube detector will have a better sensitivity, due to the larger detector size, improved reconstruction and vetoing techniques. Preliminary data from the nearly-final IceCube detector configuration has been used to estimate the 5 year sensitivity of the full detector. It is found to be more than an order of magnitude better, allowing the search for PeV extensions of known TeV gamma-ray emitters., submitted to PRD, 15 pages, 15 figures
Published: 2013

107. IceTop : the surface component of IceCube

Author: Anatoli Fedynitch, K. Mase, J. Blumenthal, P. B. Price, K. Frantzen, T. O. B. Schmidt, C. Roucelle, F. Clevermann, K. Hoshina, Y. Sestayo, Olga Botner, T. R. Wood, Karl-Heinz Sulanke, Glenn Spiczak, Timo Karg, J. P. Yanez, A. Haj Ismail, Kael Hanson, T. Fuchs, D. Z. Besson, Paolo Desiati, M. Usner, V. Baum, F. Rothmaier, G. W. Sullivan, Kurt Woschnagg, Paul Evenson, U. Naumann, K. H. Becker, K. Hultqvist, N. Milke, George Japaridze, Darren Grant, Todor Stanev, J. J. Beatty, C. Wendt, T. Feusels, Dmitry Chirkin, S. Panknin, Sarah Nowicki, A. O'Murchadha, Karen Andeen, O. Engdegård, Ch. Weaver, Markus Ahlers, J. E. Jacobsen, Marcos Santander, P. Heimann, S. Hussain, D. Bose, Alexander Kappes, J. Posselt, C. Pérez de los Heros, M. J. Larson, L. Gerhardt, J. Kiryluk, Chad Finley, Christian Spiering, S. Schoenen, Jürgen Brunner, Tim Ruhe, M. Walter, Elisa Resconi, J. Berdermann, A. Homeier, A. Olivas, D. van der Drift, D. J. Koskinen, A. Stößl, Thorsten Glusenkamp, Christopher Wiebusch, F. Descamps, R. Hoffmann, R. Franke, C. Walck, R. Eagan, S. Seunarine, Reina H. Maruyama, A. McDermott, S. H. Seo, M. Labare, J. Daughhetee, W. Huelsnitz, Thomas K. Gaisser, G. B. Yodh, D. J. Boersma, J. Roth, Matthias Wolf, L. Schönherr, E. Jacobi, Benedikt Riedel, K. Helbing, L. Shulman, R. Nahnhauer, S. Stoyanov, M. Casier, L. Mohrmann, D. Rutledge, M. Schmitz, D. Altmann, A. Stasik, R. Ström, K. Rawlins, C. Elliott, J. Lünemann, J. van Santen, James Madsen, M. Richman, L. Schulte, S. Schöneberg, R. C. Bay, Samvel Ter-Antonyan, D. Berley, G. C. Hill, Axel Groß, R. Wasserman, Naoko Kurahashi, Michael J. Baker, S. Grullon, M. J. Carson, A. Van Overloop, Gerald Przybylski, D. Bertrand, Juan Carlos Diaz-Velez, O. Schulz, Stijn Buitink, Peter Mészáros, Teresa Montaruli, L. Gladstone, Fabian Kislat, Dirk Heinen, R. J. Lauer, R. Bruijn, S. Westerhoff, P. O. Hulth, J. Eisch, Frank McNally, D. Seckel, S. Miarecki, G. de Vries-Uiterweerd, Jon Dumm, T. Waldenmaier, A. Zilles, M. Zoll, A. R. Fazely, Tyce DeYoung, H. Landsman, D. Heereman, H. S. Matis, P. A. Toale, Thomas Meures, M. Kowalski, C. De Clercq, J.-H. Köhne, H. Wissing, S. Klepser, M. Danninger, M. Wallraff, M. Voge, A. Franckowiak, Francis Halzen, P. Zarzhitsky, O. Fadiran, M. Merck, S. Böser, J. Auffenberg, M. Gurtner, Henrik J. Johansson, Daniel Bindig, A. Tamburro, M. Vehring, D. F. Cowen, J. P. Rodrigues, David A. Williams, T. Stezelberger, S. M. Saba, Markus Ackermann, S. W. Barwick, R. Hellauer, C. Ha, S. Odrowski, Larissa Paul, F. Scheriau, Dennis Soldin, Xinhua Bai, H. Taavola, J. Becker Tjus, Rasha Abbasi, J. C. Gallagher, E. Blaufuss, J. C. Davis, Albrecht Karle, D. R. Nygren, J. Casey, A. Schönwald, J. Dreyer, K. Schatto, G. Kohnen, Allan Hallgren, K. Meagher, Y. Abdou, M. L. Benabderrahmane, Sandro Kopper, Simona Toscano, R. W. Ellsworth, S. M. Movit, Donglian Xu, B. Ruzybayev, N. van Eijndhoven, J. Miller, Juanan Aguilar, A. Obertacke, Takao Kuwabara, G. Kroll, M. Krasberg, B. Christy, Seth M. Cohen, Subir Sarkar, A. Ishihara, E. A. Strahler, S. Yoshida, J. Feintzeig, K. Beattie, S. Bechet, C. Kopper, M. Lesiak-Bzdak, P. Redl, M. Olivo, N. Pirk, Nathan Whitehorn, Hermann Kolanoski, Michael S. Bell, Kirill Filimonov, P. Berghaus, J. Kläs, S. Euler, J. Kunnen, Damian Pieloth, A. M. Brown, Karen S. Caballero-Mora, L. Köpke, Segev BenZvi, Spencer Klein, O. Jlelati, Kara Hoffman, M. Scheel, A. H. Cruz Silva, S. Tilav, Wolfgang Rhode, L. Rädel, P. Nießen, M. Stamatikos, Jenni Adams, A. Goldschmidt, Matt Dunkman, T. Fischer-Wasels, A. Schukraft, K. Laihem, Dirk Ryckbosch, K. Wiebe, H. G. Sander, Carsten Rott, Chun Xu, M. Bissok, S. Hickford, R. G. Stokstad, R. Morse, T. Salameh, Xianwu Xu, C. Bohm, J. Ziemann, M. W. E. Smith, L. Brayeur, M. Soiron, I. Taboada, S. Flis, J. A. Goodman, Dariusz Gora, Joshua Pepper, E. Middell, Elisa Bernardini, M. Ribordy, Aguilar Sanchez, Juan, Montaruli, Teresa, Physics, Elementary Particle Physics, and Astronomy and Astrophysics Research Group
Subjects: FLUX, Nuclear and High Energy Physics, Air shower, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Cosmic rays, Detector, IceCube, IceTop, FOS: Physical sciences, Cosmic ray, ddc:500.2, 7. Clean energy, 01 natural sciences, IceCube Neutrino Observatory, Shower, Data acquisition, cosmic rays, DIGITIZATION, 0103 physical sciences, SHOWERS, Calibration, ddc:530, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Instrumentation, Remote sensing, Physics, Muon, detector, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, ENERGY-SPECTRUM, Physics and Astronomy, SIMULATION, High Energy Physics::Experiment, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: IceTop, the surface component of the IceCube Neutrino Observatory at the South Pole, is an air shower array with an area of 1 km2. The detector allows a detailed exploration of the mass composition of primary cosmic rays in the energy range from about 100 TeV to 1 EeV by exploiting the correlation between the shower energy measured in IceTop and the energy deposited by muons in the deep ice. In this paper we report on the technical design, construction and installation, the trigger and data acquisition systems as well as the software framework for calibration, reconstruction and simulation. Finally the first experience from commissioning and operating the detector and the performance as an air shower detector will be discussed., 50 pages, 38 figures; submitted to NIM A
Published: 2013

108. Cosmic ray composition and energy spectrum from 1–30 PeV using the 40-string configuration of IceTop and IceCube

Author: R. Bruijn, D. Heereman, Dariusz Gora, S. Odrowski, Larissa Paul, F. Scheriau, Albrecht Karle, A. Schönwald, K. Meagher, Timo Karg, J. Feintzeig, S. Schoenen, Thorsten Glusenkamp, M. W. E. Smith, K. Rawlins, A. Homeier, P. O. Hulth, J. Eisch, G. de Vries-Uiterweerd, D. J. Boersma, W. Huelsnitz, M. Stamatikos, Joshua Pepper, Anatoli Fedynitch, K. Hoshina, Christopher Wiebusch, M. Krasberg, James Madsen, K. Beattie, Frank McNally, E. Middell, J. Daughhetee, J. P. Rodrigues, T. Stezelberger, Elisa Bernardini, J.-H. Köhne, H. Wissing, K. Helbing, Glenn Spiczak, L. Brayeur, M. Soiron, J. Auffenberg, M. Labare, M. Ribordy, S. M. Saba, O. Schulz, Teresa Montaruli, S. Yoshida, Daniel Bindig, A. Goldschmidt, J. van Santen, T. Feusels, I. Taboada, S. Flis, D. Z. Besson, Matthias Wolf, A. Olivas, D. R. Nygren, D. van der Drift, T. Salameh, N. van Eijndhoven, Jürgen Brunner, C. Kopper, J. Kiryluk, Naoko Kurahashi, D. Bertrand, S. Seunarine, U. Naumann, J. E. Jacobsen, Benedikt Riedel, Axel Groß, Marcos Santander, P. Heimann, Carsten Rott, Karen S. Caballero-Mora, D. Rutledge, Nathan Whitehorn, A. Stasik, Gerald Przybylski, A. Zilles, R. Wasserman, A. Obertacke, M. Zoll, K. Mase, R. Hellauer, M. L. Benabderrahmane, M. Schmitz, O. Jlelati, Donglian Xu, H. Landsman, L. Gerhardt, L. Schulte, Ch. Weaver, J. K. Becker, J. A. Goodman, M. Scheel, M. Wallraff, M. Voge, G. Kroll, J. Miller, Karen Andeen, Chad Finley, S. Tilav, Tim Ruhe, M. Walter, B. Ruzybayev, M. Gurtner, M. Bissok, S. Bechet, Juanan Aguilar, Jenni Adams, Takao Kuwabara, Subir Sarkar, J. Blumenthal, B. Christy, Seth M. Cohen, K.-H. Becker, J. C. Gallagher, S. Panknin, S. Hussain, A. Ishihara, S. Hickford, M. Lesiak-Bzdak, P. Redl, Matt Dunkman, J. Dreyer, R. G. Stokstad, Thomas Meures, T. Fischer-Wasels, Dennis Soldin, Xianwu Xu, H. Taavola, Allan Hallgren, D. J. Koskinen, S. H. Seo, R. Nahnhauer, M. Olivo, A. Van Overloop, Aongus O'Murchadha, E. Blaufuss, J. C. Davis, M. Merck, A. Schukraft, K. Laihem, Sandro Kopper, L. Schönherr, E. Jacobi, Y. Abdou, H. G. Sander, C. Bohm, Kael Hanson, Olga Botner, L. Mohrmann, N. Milke, George Japaridze, D. Berley, G. C. Hill, M. Casier, Dirk Ryckbosch, O. Engdegård, T. Fuchs, Rasha Abbasi, Michael J. Baker, Michael S. Bell, Kirill Filimonov, J. Lünemann, S. Schöneberg, L. Gladstone, Dirk Heinen, D. Seckel, Elisa Resconi, V. Baum, Paolo Desiati, J. Berdermann, J. Casey, S. Miarecki, P. Berghaus, J. Kläs, Chun Xu, A. R. Fazely, Tyce DeYoung, P. A. Toale, L. Rädel, J. Ziemann, C. Pérez de los Heros, Simona Toscano, R. C. Bay, S. M. Movit, N. Pirk, R. Ström, S. Euler, R. W. Ellsworth, J. Kunnen, E. A. Strahler, Juan Carlos Diaz-Velez, S. Grullon, M. J. Carson, Damian Pieloth, Henrik J. Johansson, A. M. Brown, J. J. Beatty, M. J. Larson, Hermann Kolanoski, K. Wiebe, L. Köpke, J. Posselt, Fabian Kislat, Segev BenZvi, Spencer Klein, Kara Hoffman, K. Schatto, A. Stößl, G. Kohnen, A. H. Cruz Silva, Reina H. Maruyama, Wolfgang Rhode, R. Morse, H. S. Matis, A. Franckowiak, Francis Halzen, P. Zarzhitsky, O. Fadiran, D. Altmann, Peter Mészáros, Stijn Buitink, S. Westerhoff, Christian Spiering, F. Rothmaier, K. Hultqvist, Darren Grant, Sarah Nowicki, Markus Ahlers, Samvel Ter-Antonyan, Jon Dumm, T. Waldenmaier, M. Kowalski, M. Danninger, Xinhua Bai, Todor Stanev, C. Wendt, F. Descamps, R. Hoffmann, R. Franke, C. Walck, R. Eagan, Thomas K. Gaisser, G. B. Yodh, M. Richman, R. J. Lauer, C. De Clercq, S. Böser, David A. Williams, Markus Ackermann, S. W. Barwick, A. Tamburro, M. Vehring, D. F. Cowen, C. Ha, P. B. Price, T. O. B. Schmidt, T. R. Wood, K. Frantzen, F. Clevermann, Y. Sestayo, Kurt Woschnagg, Paul Evenson, J. P. Yanez, G. W. Sullivan, Dmitry Chirkin, D. Bose, Alexander Kappes, A. Haj Ismail, M. Usner, Aguilar Sanchez, Juan, Montaruli, Teresa, Physics, Elementary Particle Physics, and Astronomy and Astrophysics Research Group
Subjects: Knee region, Astrophysics, Tracking (particle physics), 01 natural sciences, Particle identification, IceCube, TRACKING, WATER, Cherenkov, Neutrino energy, NEUTRINO TELESCOPE, Ultra-high-energy cosmic ray, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, SEA, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, LIGHT, Composition, Cosmic rays, Energy spectrum, IceTop, ddc:540, PARTICLE IDENTIFICATION, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, IceCube detector, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, ddc:500.2, IceCube Neutrino Observatory, SEARCHES, Acceleration, cosmic rays, dE/dx, 0103 physical sciences, 010306 general physics, DETECTOR, Instrumentation and Methods for Astrophysics (astro-ph.IM), Cherenkov radiation, Truncated mean, Muon energy, 010308 nuclear & particles physics, Astronomy, Astronomy and Astrophysics, Physics and Astronomy, composition, Energy Spectrum, TEV
Abstract: Astroparticle physics 42, 15 - 32 (2013). doi:10.1016/j.astropartphys.2012.11.003, The mass composition of high energy cosmic rays depends on their production, acceleration, and propagation. The study of cosmic ray composition can therefore reveal hints of the origin of these particles. At the South Pole, the IceCube Neutrino Observatory is capable of measuring two components of cosmic ray air showers in coincidence: the electromagnetic component at high altitude (2835 m) using the IceTop surface array, and the muonic component above ∼1 TeV using the IceCube array. This unique detector arrangement provides an opportunity for precision measurements of the cosmic ray energy spectrum and composition in the region of the knee and beyond. We present the results of a neural network analysis technique to study the cosmic ray composition and the energy spectrum from 1 PeV to 30 PeV using data recorded using the 40-string/40-station configuration of the IceCube Neutrino Observatory., Published by Elsevier Science, Amsterdam [u.a.]
Published: 2013

109. Measurement of the inclusive semielectronicD0branching fraction

Author: B. Nemati, B. Gittelman, T. Liu, F. Muheim, C. Bebek, D. Riley, I. J. Kim, F. R. Wappler, A. P. Freyberger, D. M. Asner, Anders Ryd, M. Athanas, J. Bartelt, Sz Márka, B. C. Barish, S. Playfer, J. J. Thaler, A. Wolf, M. Lohner, H. A. Cho, P. S. Drell, R. Elia, Jorge Luis Rodriguez, M. Saulnier, J. Ernst, D. L. Hartill, R. Poling, J. Masui, B. Spaan, Yuichi Kubota, T. Lee, S. Sanghera, M. Modesitt, C. R. Ng, M. Ogg, Michael S. Witherell, Sacha E Kopp, D. He, N. Hancock, Vivek Jain, Richard Wilson, Shengfeng Yang, A. Soffer, M. S. Alam, R. Wanke, J. K. Nelson, K. Honscheid, S. Kotov, C.Y. Prescott, C. M. Korte, S. Schrenk, Yanwen Liu, J. G. Smith, P. C. Kim, T. E. Browder, R. Janicek, J. Urheim, D. F. Cowen, S. E. Csorna, Y. Kwon, D. S. Crowcroft, E. R.F. Hyatt, M. Lattery, J. E. Duboscq, K. W. Edwards, S. D. Johnson, T. Miao, R. Mountain, C. D. Jones, D. Z. Besson, I. Korolkov, N. Copty, R. Ammar, N. Kwak, M. Bishai, Alain Bellerive, B. E. Berger, G. Wei, T. E. Coan, H. Severini, Kenneth Bloom, S. Chan, K. Kinoshita, W. R. Ross, D. B. MacFarlane, A. J. Weinstein, P. M. Patel, T. Riehle, K. Lingel, M. Goldberg, C. O'Grady, G. Masek, K. K. Gan, G. W. Brandenburg, N. Katayama, J. Roy, Juliet Ritchie Patterson, G. Crawford, G. Eigen, Ryszard Stroynowski, A. H. Mahmood, Tomasz Skwarnicki, H. Kagan, J. Fast, M.A. Palmer, H. N. Nelson, S. Menary, Christopher G. White, P. Rankin, Dave Britton, S. W. Gray, I. Volobouev, Harold S. Park, D. W. Bliss, W. S. Brower, D. H. Miller, E. Gerndt, D. Gibaut, R. Davis, Alice Bean, V. Shelkov, P. Pomianowski, P. Gaidarev, X. Fu, R. J. Morrison, Mats A Selen, George D Gollin, R. Kutschke, J. Mevissen, J. Kandaswamy, P. Skubic, A. J. Sadoff, Ilya Kravchenko, Michael Wood, Ruifang Wang, M. Gao, T. Bergfeld, D. G. Cassel, J. W. Hinson, C. R. Sun, W. T. Ford, D. Peterson, R. D. Kass, R. Balest, H. P. Paar, R. Fulton, K. W. McLean, John Yelton, M. Lambrecht, Marina Artuso, M. Sung, D. Roberts, Sheldon Stone, Paul Avery, Shawn W. Henderson, Frank Würthwein, E. Nordberg, Jeffrey Richman, K. Cho, N. B. Mistry, G. S. Ludwig, B. I. Eisenstein, H. Yamamoto, G. C. Moneti, E. I. Shibata, M. Dickson, D. L. Kreinick, Pu Wang, Jungil Lee, S. Roberts, V. Fadeyev, C. Qiao, J. S. Miller, S. Nakanishi, E. H. Thorndike, D. Coppage, J. P. Alexander, D. M. Coffman, V. Savinov, B. K. Heltsley, Philip Baringer, D. Cinabro, Xiangjun Xing, G. E. Gladding, S. Patton, R. Ehrlich, S. L. Jones, J. Dominick, T. K. Nelson, M. M. Zoeller, C. Ward, J. Gronberg, S.C. Timm, N. Horwitz, M. Chadha, D. J. Dumas, Z. Ling, I. P.J. Shipsey, Karl Berkelman, H. Tajima, D. Fujino, J. J. O'Neill, Yurii V. Mukhin, and L. Gibbons
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Angular correlation, Branching fraction, Electron–positron annihilation, 0103 physical sciences, High Energy Physics::Experiment, Cornell Electron Storage Ring, 010306 general physics, 01 natural sciences
Abstract: Using the angular correlation between the ${\ensuremath{\pi}}^{+}$ emitted in a ${D}^{*+}\ensuremath{\rightarrow}{D}^{0}{\ensuremath{\pi}}^{+}$ decay and the ${e}^{+}$ emitted in the subsequent ${D}^{0}\ensuremath{\rightarrow}X{e}^{+}\ensuremath{\nu}$ decay, we have measured the branching fraction for the inclusive semielectronic decay of the ${D}^{0}$ meson to be $\mathcal{B}({D}^{0}\ensuremath{\rightarrow}X{e}^{+}\ensuremath{\nu})=[6.64\ifmmode\pm\else\textpm\fi{}0.18(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.29(\mathrm{syst})]%$. The measurement uses 1.7 ${\mathrm{fb}}^{\ensuremath{-}1}$ of ${e}^{+}{e}^{\ensuremath{-}}$ collisions recorded by the CLEO II detector located at the Cornell Electron Storage Ring (CESR). Combining this result with previous CLEO results we find $\frac{\mathcal{B}({D}^{0}\ensuremath{\rightarrow}X{e}^{+}\ensuremath{\nu})}{\mathcal{B}({D}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+})}=1.684\ifmmode\pm\else\textpm\fi{}0.056(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.093(\mathrm{syst})$ and $\frac{\mathcal{B}({D}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{e}^{+}\ensuremath{\nu})}{\mathcal{B}({D}^{0}\ensuremath{\rightarrow}X{e}^{+}\ensuremath{\nu})}=0.581\ifmmode\pm\else\textpm\fi{}0.023(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.028(\mathrm{syst})$. The difference between this inclusive rate and the sum of the measured exclusive branching fractions (measured at CLEO and other experiments) is also presented.
Published: 1996

110. Inclusive decayB→ηX

Author: D. G. Cassel, J. Urheim, S. E. Csorna, T. Liu, C. Bebek, Kenneth Bloom, D. Cinabro, K. Kinoshita, N. Katayama, A. P. Freyberger, B. I. Eisenstein, S. Patton, D. B. MacFarlane, G. Eigen, K. Lingel, A. J. Weinstein, N. Kwak, M. Bishai, H. N. Nelson, Daniel Johnson, T. Skwarnicki, M. Sung, P. S. Drell, C. R. Sun, T. K. Nelson, M. Gao, W. S. Brower, D. Gibaut, W. T. Ford, R. D. Kass, H. P. Paar, R. Fulton, Maurice Garcia-Sciveres, R. Balest, R. Davis, J. Gronberg, Jorge Luis Rodriguez, M. Saulnier, D. H. Miller, Shengfeng Yang, P. C. Kim, S. Menary, Dave Britton, P. Gaidarev, E. Nordberg, Jeffrey Richman, P. Pomianowski, G. S. Ludwig, N. Horwitz, R. L. McIlwain, M. Chadha, M. M. Zoeller, X. Fu, D. Riley, Jungil Lee, Alice Bean, V. Shelkov, S. Schrenk, A. Wolf, D. M. Coffman, Ha Lam, D. F. Cowen, Marina Artuso, Y. Kwon, R. Kutschke, J. K. Nelson, S. Sanghera, B. K. Heltsley, P. Zadorozhny, F. Muheim, B. Geiser, D. Z. Besson, N. Hancock, F. Butler, Ilya Kravchenko, J. Mevissen, R. Mountain, G. D. Gollin, K. K. Gan, A. H. Mahmood, M. Lohner, S. Salman, C. M. Daubenmier, Michael Wood, Ryszard Stroynowski, J. Kandaswamy, S. Playfer, B. Nemati, J. Bartelt, P. Rankin, B. C. Barish, B. Gittelman, D. L. Kreinick, T. Miao, S. Kotov, J. W. Hinson, Anders Ryd, M. Athanas, John Yelton, I. J. Kim, F. R. Wappler, J. Masui, B. Spaan, R. Ammar, Chunjie Wang, M. Lambrecht, J. J. Thaler, M. S. Alam, Sheldon Stone, H. Severini, S. Chan, Paul Avery, Vivek Jain, D. Peterson, C. O'Grady, C. Qiao, J. Ernst, M. Momayezi, H. Kagan, Pu Wang, S. Roberts, E. R.F. Hyatt, M. Lattery, M. Sapper, G. C. Moneti, M. Battle, S. Nakanishi, E. H. Thorndike, E. I. Shibata, C. D. Jones, M. Goldberg, W. R. Ross, D. Coppage, J. P. Alexander, R. J. Morrison, Mats A Selen, A. J. Sadoff, M. L. Kelly, M. Ogg, I. Volobouev, G. Zhu, Yuichi Kubota, S. W. Gray, D. J. Dumas, D. S. Crowcroft, M. Modesitt, Karl Berkelman, G. Crawford, J. G. Smith, L. Gibbons, K. Cho, Alain Bellerive, N. B. Mistry, P. M. Patel, Richard Wilson, B. Ong, D. He, T. E. Browder, J. Fast, Christopher G. White, P. Skubic, G. Wei, Z. Ling, I. P.J. Shipsey, Shawn W. Henderson, E. Gerndt, G. Masek, K. W. Edwards, H. Tajima, Z. Egyed, D. Fujino, Juliet Ritchie Patterson, K. Honscheid, C. M. Korte, J. J. O'Neill, Yurii V. Mukhin, D. Sperka, N. Copty, Ruifang Wang, T. Bergfeld, D. Payne, H. A. Cho, D. L. Hartill, R. Poling, C. R. Ng, M.A. Palmer, Michael S. Witherell, H. Yamamoto, J. S. Miller, V. Savinov, Yoram Rozen, F. Würthwein, Philip Baringer, Xiangjun Xing, R. Ehrlich, S. L. Jones, and J. Dominick
Subjects: Physics, Nuclear and High Energy Physics, Annihilation, Meson, Branching fraction, High Energy Physics::Phenomenology, Continuum (design consultancy), Resonance, Nuclear physics, Momentum, Yield (chemistry), High Energy Physics::Experiment, B meson, Nuclear Experiment
Abstract: Using data samples taken at the ϒ(4S) resonance and nearby continuum e + e - annihilation with the CLEO-II detector at CESR, we have measured the inclusive branching fraction B(B→ηX)=(17.6±1.1±1.2)%, and the momentum distribution of the η mesons from B meson decay. The η yield cannot be explained as arising solely from the decay of intermediate charmed mesons.
Published: 1996

111. Measurements of B→Ds+X decays

Author: K. Honscheid, D. Gibaut, Z. Ling, C. M. Korte, C. D. Jones, M. Dickson, H. Yamamoto, T. Lee, D. He, D. L. Kreinick, I. P.J. Shipsey, B. E. Berger, A. Soffer, C. Qiao, J. K. Nelson, T. E. Browder, D. S. Crowcroft, D. B. MacFarlane, A. J. Weinstein, R. Mountain, M.A. Palmer, M. Goldberg, H. N. Nelson, S. Nakanishi, E. H. Thorndike, E. Gerndt, K. W. Edwards, S. Roberts, Z. Egyed, Marina Artuso, G. Crawford, Ruifang Wang, J. S. Miller, T. Bergfeld, M. Gao, V. Fadeyev, D. M. Coffman, Maurice Garcia-Sciveres, D. Riley, B. K. Heltsley, D. Coppage, J. P. Alexander, J. J. Thaler, D. Payne, B. Nemati, H. A. Cho, B. Gittelman, Y. Kwon, C. R. Sun, J. Masui, H. P. Paar, B. Spaan, R. Fulton, Jungil Lee, D. M. Asner, D. Z. Besson, W. T. Ford, John Yelton, M. Lambrecht, I. Korolkov, N. Copty, R. D. Kass, J. Fast, I. J. Kim, F. R. Wappler, Christopher G. White, H. Kagan, D. G. Cassel, H. Tajima, R. Ammar, T. E. Coan, M. Ogg, H. Severini, S. Chan, M. Momayezi, Ryszard Stroynowski, D. Cinabro, E. Nordberg, Jeffrey Richman, Vivek Jain, G. E. Gladding, R. Ehrlich, C. O'Grady, J. Bartelt, G. S. Ludwig, K. K. Gan, R. Davis, P. Rankin, R. Balest, George D Gollin, S. Patton, D. L. Hartill, R. J. Morrison, Mats A Selen, R. Poling, A. J. Sadoff, T. K. Nelson, S. L. Jones, D. Fujino, J. J. O'Neill, Sheldon Stone, C. R. Ng, Paul Avery, B. I. Eisenstein, J. Dominick, G. C. Moneti, Yurii V. Mukhin, Michael S. Witherell, T. Miao, Ha Lam, E. I. Shibata, M. Lohner, Shengfeng Yang, M. M. Zoeller, V. Savinov, A. H. Mahmood, D. F. Cowen, A. Wolf, B. C. Barish, G. Masek, Juliet Ritchie Patterson, Yoram Rozen, P. S. Drell, S. Sanghera, R. Elia, Yuichi Kubota, Jorge Luis Rodriguez, M. Saulnier, Pu Wang, N. Hancock, J. Ernst, Philip Baringer, J. Urheim, Richard Wilson, Xiangjun Xing, G. Zhu, T. Skwarnicki, P. C. Kim, J. Gronberg, G. Wei, Alain Bellerive, K. W. McLean, N. Horwitz, M. Chadha, P. M. Patel, K. Lingel, D. J. Dumas, Karl Berkelman, L. Gibbons, Anders Ryd, M. Athanas, S. Kotov, R. Janicek, S. E. Csorna, K. Kinoshita, G. W. Brandenburg, D. H. Miller, P. Gaidarev, X. Fu, T. Liu, C. Bebek, Harold S. Park, A. P. Freyberger, Alice Bean, M. Sung, D. Roberts, R. Kutschke, M. S. Alam, Daniel W. Bliss, Kenneth Bloom, E. R.F. Hyatt, M. Lattery, N. Katayama, N. Kwak, G. Eigen, Frank Würthwein, K. Cho, M. Bishai, W. S. Brower, N. B. Mistry, S. Menary, Dave Britton, P. Pomianowski, J. Mevissen, R. L. McIlwain, J. Kandaswamy, V. Shelkov, S. Schrenk, F. Muheim, D. Peterson, Ilya Kravchenko, W. R. Ross, Michael Wood, I. Volobouev, J. W. Hinson, S. Playfer, M. Modesitt, Yanwen Liu, J. G. Smith, M. L. Kelly, S. W. Gray, P. Skubic, and Shawn W. Henderson
Subjects: Systematic error, Physics, Combinatorics, Statistics::Theory, Nuclear and High Energy Physics, Particle physics, Statistics::Applications, Branching fraction, Electron–positron annihilation, High Energy Physics::Experiment
Abstract: This paper describes new measurements from CLEO of the inclusive B\ensuremath{\rightarrow}${\mathit{D}}_{\mathit{s}}^{+}$X branching fraction as well as the ${\mathit{B}}^{+}$\ensuremath{\rightarrow}${\mathit{D}}_{\mathit{s}}^{(\mathrm{*})+}$D${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}^{(\mathrm{*})0}$ and ${\mathit{B}}^{0}$\ensuremath{\rightarrow}${\mathit{D}}_{\mathit{s}}^{(\mathrm{*})+}$${\mathit{D}}^{(\mathrm{*})\mathrm{\ensuremath{-}}}$ branching fractions. The inclusive branching fraction is B(B\ensuremath{\rightarrow}${\mathit{D}}_{\mathit{s}}^{+}$X)=(12.11\ifmmode\pm\else\textpm\fi{}0.39\ifmmode\pm\else\textpm\fi{}0.88\ifmmode\pm\else\textpm\fi{}1.38)% where the first error is statistical, the second is the systematic error, and the third is the error due to the uncertainty in the ${\mathit{D}}_{\mathit{s}}^{+}$\ensuremath{\rightarrow}\ensuremath{\varphi}${\mathrm{\ensuremath{\pi}}}^{+}$ branching fraction. The branching fractions for the B\ensuremath{\rightarrow}${\mathit{D}}_{\mathit{s}}^{(\mathrm{*})+}$D${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}^{(\mathrm{*})}$ modes are found to be between 0.9% and 2.4% and are significantly more precise than previous measurements. The sum of the B\ensuremath{\rightarrow}${\mathit{D}}_{\mathit{s}}^{(\mathrm{*})+}$D${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}^{(\mathrm{*})}$ branching fractions is consistent with the results of fits to the inclusive ${\mathit{D}}_{\mathit{s}}^{+}$ momentum spectrum. Factorization is used to arrive at a value for ${\mathit{f}}_{{\mathit{D}}_{\mathit{s}}}$, the ${\mathit{D}}_{\mathit{s}}^{+}$ decay constant. \textcopyright{} 1996 The American Physical Society.
Published: 1996

112. Observation of new decay modes of the charmed-strange baryon Ξc+

Author: C. Bebek, A. P. Freyberger, J. S. Miller, M. Modesitt, D. He, E. I. Shibata, R. Davis, D. Riley, M. Lohner, S. Schrenk, T. E. Browder, Yanwen Liu, J. G. Smith, S. Nakanishi, F. Muheim, E. H. Thorndike, J. Roy, Harold S. Park, Alice Bean, R. Kutschke, Ryszard Stroynowski, S. D. Johnson, D. M. Asner, M.A. Palmer, S. Kotov, R. Janicek, D. H. Miller, D. Coppage, J. P. Alexander, Jungil Lee, P. Rankin, R. Ehrlich, P. Gaidarev, I. Korolkov, Z. Ling, N. Copty, J. Bartelt, P. S. Drell, D. J. Dumas, Kenneth Bloom, T. Riehle, M. Ogg, N. Katayama, X. Fu, G. Eigen, I. P.J. Shipsey, R. Elia, Jorge Luis Rodriguez, M. Saulnier, S. L. Jones, S. Playfer, Y. Kwon, Karl Berkelman, P. Skubic, J. Ernst, J. Dominick, S. W. Gray, L. Gibbons, D. Gibaut, C. Ward, Yuichi Kubota, D. Z. Besson, D. G. Cassel, B. Nemati, B. Gittelman, Shengfeng Yang, T. Miao, J. Gronberg, S.C. Timm, N. Horwitz, M. Chadha, V. Savinov, A. H. Mahmood, W. S. Brower, M. Gao, M. Sung, D. Roberts, D. F. Cowen, H. P. Paar, R. Fulton, P. Pomianowski, D. M. Coffman, Frank Würthwein, K. Cho, RM Patel, J. D. Richman, Shawn W. Henderson, Richard Wilson, V. Fadeyev, N. B. Mistry, M. Dickson, John Yelton, M. Lambrecht, B. K. Heltsley, K. Honscheid, J. Fast, H. Tajima, Sacha E Kopp, Philip Baringer, Ilya Kravchenko, Michael Wood, R. Ammar, C. M. Korte, B. I. Eisenstein, M. S. Alam, R. Wanke, I. J. Kim, T. Lee, H. Kagan, G. D. Gollin, Christopher G. White, J. K. Nelson, E. Nordberg, Xiangjun Xing, B. C. Barish, J. Masui, J. W. Hinson, B. Spaan, S. E. Csorna, W. R. Ross, J. E. Duboscq, D. Fujino, G. S. Ludwig, J. J. Thaler, R. Mountain, D. L. Kreinick, Anders Ryd, M. Athanas, Marina Artuso, H. Severini, S. Chan, E. Gerndt, Sz Márka, K. W. Edwards, C. O'Grady, E. R.F. Hyatt, M. Lattery, H. Yamamoto, J. J. O'Neill, T. E. Coan, D. B. MacFarlane, A. J. Weinstein, C. Qiao, I. Volobouev, R. J. Morrison, S. Roberts, N. Kwak, Mats A Selen, M. Bishai, A. J. Sadoff, Yurii V. Mukhin, Vivek Jain, Ruifang Wang, Tomasz Skwarnicki, H. N. Nelson, T. Bergfeld, K. Kinoshita, G. W. Brandenburg, D. L. Hartill, A. Soffer, Sheldon Stone, S. Menary, D. Cinabro, G. E. Gladding, Paul Avery, S. Patton, D. S. Crowcroft, V. Shelkov, C.Y. Prescott, Alain Bellerive, C. D. Jones, J. Mevissen, Pu Wang, K. W. McLean, J. Kandaswamy, B. E. Berger, F. R. Wappler, C. R. Sun, W. T. Ford, G. Crawford, R. D. Kass, R. Balest, D. Peterson, K. Lingel, G. Wei, H. A. Cho, K. K. Gan, R. Poling, P. C. Kim, M. Goldberg, G. C. Moneti, C. R. Ng, T. K. Nelson, Michael S. Witherell, D. W. Bliss, M. M. Zoeller, A. Wolf, G. Masek, Juliet Ritchie Patterson, D. L. Britton, S. Sanghera, N. Hancock, J. Urheim, and T. Liu
Subjects: Nuclear physics, Baryon, Physics, Nuclear and High Energy Physics, Electron–positron annihilation, Mass spectrum, Cornell Electron Storage Ring, Branching (polymer chemistry)
Abstract: Using the CLEO II detector operating at the e + e − Cornell Electron Storage Ring (CESR), we present evidence for new decay modes of the Ξ c + into Ξ 0 π + , Ξ 0 π + π 0 , and Ξ 0 π + π − π + . The branching ratios of these decay modes, relative to Ξ c + → Ξ − π + π + , have been measured to be 0.55±0.13±0.09, 2.34±0.57±0.37, and 1.74±0.42±0.27, respectively.
Published: 1996

113. Observation of the Cabibbo-suppressed charmed baryon decayΛc+→pφ

Author: M. Gao, Pu Wang, Jungil Lee, D. Cinabro, G. C. Moneti, D. He, E. I. Shibata, J. J. Thaler, H. P. Paar, R. Fulton, G. E. Gladding, A. Soffer, S. Patton, T. E. Browder, B. Nemati, Ron Poling, T. Liu, C. Bebek, Z. Ling, I. P.J. Shipsey, T. Lee, B. Gittelman, D. S. Crowcroft, Anders Ryd, M. Athanas, A. P. Freyberger, G. Wei, C. D. Jones, M. Momayezi, Richard Wilson, I. J. Kim, F. R. Wappler, V. Savinov, Sz Márka, T. K. Nelson, G. Masek, J. K. Nelson, Juliet Ritchie Patterson, N. Kwak, M. Bishai, S. E. Csorna, E. Nordberg, Jeffrey Richman, Shengfeng Yang, B. E. Berger, Frank Würthwein, K. Cho, M. Goldberg, G. S. Ludwig, T. Miao, N. B. Mistry, M. M. Zoeller, P. Skubic, Philip Baringer, K. Honscheid, D. L. Kreinick, R. Mountain, J. Mevissen, A. Wolf, H. Tajima, Sheldon Stone, Y. Kwon, G. Crawford, C. M. Korte, P. S. Drell, R. Elia, Jorge Luis Rodriguez, R. Ammar, J. Kandaswamy, Xiangjun Xing, K. Kinoshita, Shawn W. Henderson, H. A. Cho, D. Gibaut, T. E. Coan, S. W. Gray, D. Fujino, D. Riley, D. M. Asner, M. Saulnier, J. Ernst, S. Sanghera, D. Z. Besson, Paul Avery, G. W. Brandenburg, H. Severini, S. Chan, J. J. O'Neill, D. F. Cowen, D. G. Cassel, Harold S. Park, J. Fast, M. Modesitt, M. Dickson, N. Hancock, D. L. Hartill, J. S. Miller, C. O'Grady, C. R. Ng, Christopher G. White, J. Bartelt, Yurii V. Mukhin, D. Peterson, S. Menary, D. J. Dumas, Michael S. Witherell, Alice Bean, A. H. Mahmood, S. Roberts, J. Urheim, I. Korolkov, Dave Britton, K. K. Gan, N. Copty, C. Qiao, Karl Berkelman, B. C. Barish, Yanwen Liu, John Yelton, M. Lambrecht, M. Lohner, J. G. Smith, J. Masui, B. Spaan, E. Gerndt, K. W. Edwards, S. D. Johnson, L. Gibbons, W. R. Ross, S. Nakanishi, R. Kutschke, E. H. Thorndike, M. Sung, H. Kagan, J. Gronberg, T. Skwarnicki, R. Ehrlich, D. Roberts, B. I. Eisenstein, N. Horwitz, Vivek Jain, Marina Artuso, W. S. Brower, V. Shelkov, S. Schrenk, Yuichi Kubota, M. Chadha, R. Davis, I. Volobouev, D. M. Coffman, D. Coppage, Ryszard Stroynowski, P. C. Kim, B. K. Heltsley, J. P. Alexander, Ruifang Wang, P. Pomianowski, D. H. Miller, T. Bergfeld, G. D. Gollin, Maurice Garcia-Sciveres, P. Gaidarev, M. Ogg, Alain Bellerive, P. Rankin, X. Fu, Ilya Kravchenko, Michael Wood, K. W. McLean, C.Y. Prescott, J. W. Hinson, P. M. Patel, Kenneth Bloom, K. Lingel, Sacha E Kopp, R. J. Morrison, Mats A Selen, M. S. Alam, N. Katayama, A. J. Sadoff, D. W. Bliss, C. R. Sun, W. T. Ford, G. Eigen, R. D. Kass, R. Balest, E. R.F. Hyatt, M. Lattery, S. Kotov, R. Janicek, F. Muheim, S. Playfer, D. B. MacFarlane, A. J. Weinstein, H. N. Nelson, H. Yamamoto, S. L. Jones, J. Dominick, V. Fadeyev, and M.A. Palmer
Subjects: Physics, Baryon, Nuclear and High Energy Physics, Particle physics, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Electron–positron annihilation, Lambda
Abstract: We report the observation of the Cabibbo-suppressed decays {Lambda}{sub {ital c}}{sup +}{r_arrow}{ital pK{sup {minus}}K{sup +}} and {Lambda}{sub {ital c}}{sup +}{r_arrow}{ital p}{phi} using data collected with the CLEO II detector at CESR. The latter mode, observed for the first time with significant statistics, is of interest as a test of color suppression in charm decays. We have determined the branching ratios for these modes relative to {Lambda}{sub {ital c}}{sup +}{r_arrow}{ital pK{sup {minus}}}{pi}{sup +} and compared our results with theory. {copyright} {ital 1996 The American Physical Society.}
Published: 1996

114. Observation of a Narrow State Decaying intoΞc+π−

Author: D. H. Miller, M. Sung, D. Roberts, P. Gaidarev, X. Fu, P. S. Drell, R. Elia, Jorge Luis Rodriguez, D. G. Cassel, M. Saulnier, S. Nakanishi, S. E. Csorna, G. Wei, J. Ernst, D. B. MacFarlane, A. J. Weinstein, W. S. Brower, E. H. Thorndike, P. Pomianowski, G. Masek, Juliet Ritchie Patterson, K. Kinoshita, G. W. Brandenburg, I. Korolkov, N. Copty, Z. Ling, Richard Wilson, H. N. Nelson, Ilya Kravchenko, Michael Wood, M. Lohner, Anders Ryd, J. Masui, T. Miao, B. Spaan, M. Athanas, J. W. Hinson, D. Coppage, J. P. Alexander, R. J. Morrison, Mats A Selen, D. Cinabro, B. I. Eisenstein, Sz Márka, J. J. Thaler, B. Nemati, M.A. Palmer, B. Gittelman, A. J. Sadoff, R. Ammar, Shawn W. Henderson, G. C. Moneti, G. E. Gladding, R. Ehrlich, M. Ogg, S. W. Gray, Shengfeng Yang, M. Gao, S. Patton, T. E. Coan, H. Severini, M. Modesitt, S. Chan, Sacha E Kopp, M. S. Alam, I. J. Kim, F. R. Wappler, J. Mevissen, D. W. Bliss, Vivek Jain, S. L. Jones, Maurice Garcia-Sciveres, M. Momayezi, K. K. Gan, Alain Bellerive, H. P. Paar, R. Fulton, D. F. Cowen, E. Gerndt, K. W. Edwards, C. O'Grady, H. Tajima, K. W. McLean, H. A. Cho, M. Dickson, J. Kandaswamy, E. I. Shibata, J. Dominick, John Yelton, M. Lambrecht, A. Soffer, D. S. Crowcroft, Ryszard Stroynowski, D. Fujino, Yanwen Liu, J. G. Smith, S. D. Johnson, P. M. Patel, D. J. Dumas, K. Honscheid, C. M. Korte, E. R.F. Hyatt, M. Lattery, D. L. Hartill, J. J. O'Neill, R. Poling, E. Nordberg, Jeffrey Richman, H. Yamamoto, K. Lingel, V. Savinov, Ian Shipsey, D. He, C. Qiao, D. Riley, P. Rankin, T. Lee, Yurii V. Mukhin, D. M. Asner, C. R. Ng, Michael S. Witherell, G. S. Ludwig, J. E. Duboscq, J. K. Nelson, F. Muheim, A. H. Mahmood, J. Bartelt, Karl Berkelman, T. E. Browder, G. Crawford, Y. Kwon, Ruifang Wang, A. Wolf, D. Z. Besson, R. Mountain, D. L. Kreinick, T. Bergfeld, L. Gibbons, S. Kotov, Philip Baringer, B. C. Barish, J. Gronberg, Yuichi Kubota, T. Skwarnicki, S.C. Timm, N. Horwitz, M. Chadha, R. Davis, George D Gollin, S. Playfer, P. Skubic, Xiangjun Xing, P. C. Kim, V. Fadeyev, S. Roberts, S. Sanghera, R. Janicek, D. Peterson, N. Kwak, M. Bishai, C. D. Jones, J. Fast, S. Menary, Dave Britton, Pu Wang, N. Hancock, D. M. Coffman, J. S. Miller, Jungil Lee, V. Shelkov, S. Schrenk, Christopher G. White, B. K. Heltsley, B. E. Berger, Harris Kagan, M. Goldberg, W. R. Ross, C.Y. Prescott, J. Urheim, Kenneth Bloom, I. Volobouev, N. Katayama, G. Eigen, T. K. Nelson, M. M. Zoeller, C. R. Sun, W. T. Ford, R. D. Kass, R. Balest, Sheldon Stone, Paul Avery, F. Ẅrthwein, Harold S. Park, K. Cho, N. B. Mistry, D. Gibaut, Alice Bean, R. Kutschke, Marina Artuso, T. Liu, C. Bebek, and A. P. Freyberger
Subjects: Baryon, Physics, Charmed baryons, Nuclear physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, General Physics and Astronomy, State (functional analysis), 010306 general physics, 01 natural sciences, Spin excitation
Abstract: Using data recorded by the CLEO-II detector at CESR, we report the first observation of a narrow state decaying into $\Xi_c^+\pi^-$. The state has mass difference $M(\Xi_c^+\pi^-)-M(\Xi_c^+)$ of $178.2\pm0.5\pm1.0$ $\rm{MeV/c^2}$, and a width of $
Published: 1995

115. Measurement of theDs+→ηℓ+νandDs+→η′ℓ+νBranching Ratios

Author: C. Bebek, Y. Kwon, D. Roberts, A. P. Freyberger, D. Fujino, J. Masui, B. Spaan, N. Copty, D. He, R. Fulton, S. Chan, B. Gittelman, E. Gerndt, I. J. Kim, F. R. Wappler, Ryszard Stroynowski, D. W. Bliss, E. H. Thorndike, J. S. Miller, H. N. Nelson, W. S. Brower, P. Pomianowski, M. Lambrecht, H. Park, C. White, S. Playfer, R. Kutschke, S. Kopp, D. Riley, Shengfeng Yang, D. Coppage, J. Urheim, J. P. Alexander, D. B. MacFarlane, K. Cho, Ilya Kravchenko, D. M. Asner, Michael Wood, N. Kwak, S. D. Johnson, M. Bishai, D. G. Cassel, Sheldon Stone, Paul Avery, F. Ẅrthwein, Ian Shipsey, M. Ogg, J. Bartelt, H. P. Paar, J. Gronberg, A. Ryd, T. E. Browder, D. Z. Besson, S. Sanghera, Pu Wang, Yanwen Liu, J. G. Smith, J. J. Thaler, H. Kagan, R. Kass, Y. Mukhin, C. R. Sun, I. Korolkov, E. Nordberg, Jeffrey Richman, G. S. Ludwig, F. Muheim, Yuichi Kubota, R. Davis, M. M. Zoeller, I. Volobouev, C. Qiao, Dave Britton, R. Balest, B. C. Barish, P. S. Drell, R. Elia, C. D. Jones, Jorge Luis Rodriguez, P. Skubic, George D Gollin, R. J. Morrison, Richard Wilson, M. Saulnier, N. Horwitz, B. E. Berger, M. Momayezi, S. Schrenk, S. W. Gray, D. H. Miller, M. Chadha, J. Ernst, M. Dickson, J. Dominick, A. J. Weinstein, C. M. Korte, V. Jain, R. Ammar, P. Gaidarev, N. Hancock, N. B. Mistry, B. I. Eisenstein, K. K. Gan, T. E. Coan, H. Severini, X. Fu, D. J. Dumas, D. F. Cowen, V. Fadeyev, Shawn W. Henderson, K. Honscheid, Karl Berkelman, S. Nakanishi, S. Roberts, M. Sung, J. Mevissen, A. H. Mahmood, H. Tajima, T. Skwarnicki, Maurice Garcia-Sciveres, J. Kandaswamy, T. K. Nelson, Alain Bellerive, L. Gibbons, T. Miao, K. W. McLean, P. C. Kim, P. M. Patel, E. I. Shibata, Sz Márka, K. Lingel, M. S. Alam, T. Lee, D. Peterson, D. Gibaut, A. Wolf, J. K. Nelson, C.Y. Prescott, M. Gao, E. R.F. Hyatt, M. Lattery, K. W. Edwards, B. Nemati, G. C. Moneti, Mats A Selen, Ruifang Wang, J. Lee, T. Bergfeld, P. Rankin, A. J. Sadoff, Marina Artuso, A. Soffer, D. S. Crowcroft, J. Fast, C. O'Grady, M. Lohner, G. Crawford, V. Shelkov, H. Yamamoto, G. Masek, John Yelton, W. T. Ford, J. E. Duboscq, S. Kotov, R. Janicek, M.A. Palmer, Kenneth Bloom, N. Katayama, W. R. Ross, Alice Bean, Z. Ling, S. E. Csorna, M. Goldberg, K. Kinoshita, J. J. O'Neill, V. Savinov, M. Athanas, G. Brandenburg, Philip Baringer, Xiangjun Xing, R. Ehrlich, S. L. Jones, D. Cinabro, G. E. Gladding, S. Patton, G. Eigen, D. L. Kreinick, Juliet Ritchie Patterson, D. M. Coffman, B. K. Heltsley, R. Mountain, H. A. Cho, D. L. Hartill, R. Poling, C. R. Ng, Michael S. Witherell, S. Menary, G. Wei, J. W. Hinson, T. Liu, and M. Modesitt
Subjects: Pseudoscalar, Physics, 010308 nuclear & particles physics, 0103 physical sciences, Analytical chemistry, General Physics and Astronomy, 010306 general physics, Branching (polymer chemistry), 01 natural sciences
Abstract: Using the CLEO II detector we measure B(D s + Ⅵηe + ν)/B(D s + Ⅵφe + ν)=1.24±0.12±0.15, B(D s + Ⅵη ′ e + ν)/B(D s + Ⅵφe + ν)=0.43±0.11±0.07, and B(D s + Ⅵη ′ e + ν)/B(D s + Ⅵηe + ν)=0.35±0.09±0.07. We find the ratio of vector to pseudoscalar final states, B(D s + Ⅵφe + ν)/B(D s + Ⅵ(η+η ′ )e + ν)=0.60±0.06±0.06, which is similar to the ratio found in nonstrange D decays.
Published: 1995

116. Measurements of the Decaysτ−→h−h+h−ντandτ−→h−h+h−π0ντ

Author: D. L. Kreinick, Y. Kwon, D. Z. Besson, D. He, S. Roberts, K. K. Gan, D. W. Bliss, T. Skwarnicki, P. C. Kim, T. E. Browder, K. Cho, Sheldon Stone, Paul Avery, D. Gibaut, F. Ẅrthwein, D. M. Coffman, N. B. Mistry, B. K. Heltsley, M.A. Palmer, T. Liu, C. Bebek, D. B. MacFarlane, A. J. Weinstein, Ryszard Stroynowski, J. Urheim, D. Cinabro, H. N. Nelson, H. Kagan, G. E. Gladding, S. Patton, J. J. Thaler, P. Rankin, Richard Wilson, W. R. Ross, P. Skubic, S. Nakanishi, E. H. Thorndike, V. Fadeyev, M. Gao, R. Ammar, R. Davis, George D Gollin, A. P. Freyberger, Kenneth Bloom, H. P. Paar, R. Fulton, I. Volobouev, T. E. Coan, H. Severini, S. Chan, Shawn W. Henderson, M. Momayezi, Marina Artuso, K. Honscheid, N. Katayama, D. Coppage, J. P. Alexander, H. Yamamoto, C. M. Korte, C. O'Grady, R. Ehrlich, D. Riley, D. M. Asner, E. Nordberg, Jeffrey Richman, G. Eigen, C. R. Sun, W. T. Ford, G. S. Ludwig, R. J. Morrison, J. Bartelt, Mats A Selen, S. L. Jones, R. D. Kass, S. W. Gray, T. K. Nelson, Shengfeng Yang, M. Ogg, R. Balest, A. J. Sadoff, M. M. Zoeller, M. Modesitt, J. Dominick, A. Wolf, J. Mevissen, D. F. Cowen, A. H. Mahmood, S. Sanghera, N. Hancock, S. Kotov, J. Kandaswamy, J. S. Miller, R. Janicek, T. Miao, Yuichi Kubota, I. Korolkov, N. Copty, Yanwen Liu, D. Peterson, John Yelton, M. Lambrecht, J. G. Smith, S. D. Johnson, V. Savinov, A. Soffer, Alain Bellerive, M. Dickson, K. W. McLean, D. S. Crowcroft, W. S. Brower, Philip Baringer, Harold S. Park, P. M. Patel, Xiangjun Xing, Alice Bean, P. Pomianowski, K. Lingel, C. Qiao, R. Kutschke, G. Crawford, Ilya Kravchenko, Michael Wood, J. W. Hinson, D. H. Miller, P. Gaidarev, X. Fu, Jungil Lee, M. Sung, D. Roberts, E. Gerndt, K. W. Edwards, N. Kwak, Pu Wang, S. E. Csorna, M. Bishai, G. C. Moneti, E. I. Shibata, Ruifang Wang, S. Menary, Dave Britton, T. Bergfeld, V. Shelkov, S. Schrenk, K. Kinoshita, G. W. Brandenburg, F. Muheim, C.Y. Prescott, G. Masek, Juliet Ritchie Patterson, S. Playfer, Sacha E Kopp, M. S. Alam, E. R.F. Hyatt, M. Lattery, J. Fast, Christopher G. White, G. Wei, H. A. Cho, D. L. Hartill, R. Poling, C. R. Ng, Michael S. Witherell, D. Fujino, Maurice Garcia-Sciveres, J. J. O'Neill, Yurii V. Mukhin, D. G. Cassel, Z. Ling, I. P.J. Shipsey, H. Tajima, B. I. Eisenstein, T. Lee, J. K. Nelson, R. Mountain, B. C. Barish, J. Masui, B. Spaan, Vivek Jain, P. S. Drell, R. Elia, Jorge Luis Rodriguez, M. Saulnier, J. Ernst, B. Nemati, B. Gittelman, I. J. Kim, F. R. Wappler, M. Lohner, C. D. Jones, Anders Ryd, M. Athanas, Sz Márka, B. E. Berger, M. Goldberg, J. Gronberg, N. Horwitz, M. Chadha, D. J. Dumas, Karl Berkelman, and L. Gibbons
Subjects: Physics, Particle decay, Crystallography, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, General Physics and Astronomy, Omega
Abstract: We use a data sample of 2.8{times}10{sup 6} produced {tau}-pair events, obtained with the CLEO II detector, to measure {ital B}{bold (}{tau}{sup {minus}}{r_arrow}{ital h}{sup {minus}}{ital h}{sup +}{ital h}{sup {minus}}({pi}{sup 0}){nu}{sub {tau}}{bold )}, where {ital h} refers to either a charged {pi} or {ital K}. These branching fractions are measured with samples of lepton-tagged and 3 vs 3 events. We find {ital B}({tau}{sup {minus}}{r_arrow}{ital h}{sup {minus}}{ital h}{sup +}{ital h}{sup {minus}}{nu}{sub {tau}})=0.0951{plus_minus}0.0007 m*0.0020 and {ital B}({tau}{sup {minus}}{r_arrow}{ital h}{sup {minus}}{ital h}{sup +}{ital h}{sup {minus}}{pi}{sup 0}{nu}{sub {tau}})=0.0423{plus_minus} .0006{plus_minus}0.0022. We also measure {ital B}({tau}{sup {minus}}{r_arrow}{omega}{ital h}{sup {minus}}{nu}{sub {tau}})=0.0195{plus_minus}0.0007{plus_minus}0.0011 {copyright} {ital 1995} {ital The} {ital American} {ital Physical} {ital Society}.
Published: 1995

117. Search forCPviolation inD0decay

Author: W. S. Brower, S. Nakanishi, E. H. Thorndike, D. G. Cassel, D. J. Dumas, D. Riley, P. Pomianowski, A. Soffer, J. Masui, D. M. Asner, B. Spaan, T. Liu, C. Bebek, D. Coppage, J. P. Alexander, A. P. Freyberger, Ilya Kravchenko, Michael Wood, P. S. Drell, J. Bartelt, D. S. Crowcroft, V. Savinov, Karl Berkelman, J. W. Hinson, R. Elia, N. Kwak, Vivek Jain, Jorge Luis Rodriguez, Yoram Rozen, M. Bishai, Yuichi Kubota, L. Gibbons, D. Cinabro, M. Saulnier, G. E. Gladding, M. Gao, H. Yamamoto, S. Patton, D. Fujino, J. Ernst, J. Urheim, Philip Baringer, J. J. O'Neill, Alain Bellerive, Shawn W. Henderson, Anders Ryd, M. Athanas, B. I. Eisenstein, M. L. Kelly, Xiangjun Xing, B. Nemati, Yurii V. Mukhin, T. Lee, B. Gittelman, Y. Kwon, P. M. Patel, K. Lingel, S. Menary, S. W. Gray, G. Crawford, Richard Wilson, M. Modesitt, J. K. Nelson, D. Z. Besson, C. D. Jones, I. J. Kim, F. R. Wappler, Dave Britton, R. L. McIlwain, Yanwen Liu, J. G. Smith, B. E. Berger, S. E. Csorna, H. P. Paar, R. Fulton, R. Mountain, H. Kagan, A. H. Mahmood, K. Honscheid, C. M. Korte, M.A. Palmer, K. W. Edwards, V. Shelkov, S. Schrenk, E. Gerndt, R. Ehrlich, T. Miao, Harold S. Park, M. Goldberg, I. Korolkov, Ian Shipsey, D. He, M. Dickson, N. Copty, J. Gronberg, K. Kinoshita, S. L. Jones, Z. Ling, G. W. Brandenburg, N. Horwitz, M. Chadha, D. W. Bliss, T. E. Browder, Alice Bean, K. W. McLean, K. K. Gan, J. Dominick, A. Wolf, Z. Egyed, M. S. Alam, Maurice Garcia-Sciveres, S. Sanghera, Shengfeng Yang, C. Qiao, G. Wei, J. S. Miller, R. Kutschke, D. M. Coffman, R. J. Morrison, Mats A Selen, J. J. Thaler, M. Sung, N. Hancock, A. J. Sadoff, Frank Würthwein, G. Masek, B. K. Heltsley, D. Roberts, E. R.F. Hyatt, K. Cho, P. Skubic, M. Ogg, M. Momayezi, M. Lattery, Juliet Ritchie Patterson, G. Zhu, D. F. Cowen, D. H. Miller, Ruifang Wang, M. Lohner, F. Muheim, N. B. Mistry, P. Gaidarev, T. Bergfeld, X. Fu, T. Skwarnicki, Pu Wang, E. Nordberg, Jeffrey Richman, P. C. Kim, D. L. Kreinick, R. Ammar, W. R. Ross, H. Tajima, S. Kotov, S. Playfer, R. Janicek, G. C. Moneti, Ha Lam, G. S. Ludwig, T. K. Nelson, V. Fadeyev, R. Davis, Ryszard Stroynowski, George D Gollin, Sheldon Stone, I. Volobouev, Paul Avery, E. I. Shibata, D. Payne, H. A. Cho, T. E. Coan, H. Severini, S. Chan, S. Roberts, John Yelton, M. Lambrecht, D. L. Hartill, M. M. Zoeller, P. Rankin, C. O'Grady, R. Poling, Jungil Lee, C. R. Ng, J. Mevissen, C. R. Sun, W. T. Ford, Kenneth Bloom, R. D. Kass, B. C. Barish, Michael S. Witherell, J. Kandaswamy, R. Balest, N. Katayama, G. Eigen, D. Peterson, D. B. MacFarlane, A. J. Weinstein, J. Fast, Christopher G. White, H. N. Nelson, D. Gibaut, and Marina Artuso
Subjects: Physics, Nuclear physics, Particle decay, Particle physics, Electron–positron annihilation, media_common.quotation_subject, Mass spectrum, CP violation, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Asymmetry, Eigenvalues and eigenvectors, media_common
Abstract: This is the publisher's version also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.52.4860.
Published: 1995

118. Observation of the Isospin-Violating DecayDs*+→Ds+π0

Author: A. Wolf, S. Sanghera, N. Hancock, T. K. Nelson, M. M. Zoeller, J. Urheim, Jungil Lee, W. R. Ross, I. Volobouev, A. H. Mahmood, G. Masek, G. C. Moneti, Juliet Ritchie Patterson, T. Liu, Frank Würthwein, K. Cho, N. B. Mistry, W. S. Brower, C. Bebek, J. J. Thaler, P. Pomianowski, E. I. Shibata, A. P. Freyberger, J. Mevissen, M. Momayezi, John Yelton, M. Lambrecht, S. Nakanishi, E. H. Thorndike, K. Honscheid, Ilya Kravchenko, J. Kandaswamy, Michael Wood, Y. Kwon, C.Y. Prescott, J. W. Hinson, D. Z. Besson, C. M. Korte, J. Gronberg, D. Gibaut, N. Horwitz, A. Soffer, D. Coppage, J. P. Alexander, K. K. Gan, M. Chadha, D. Peterson, D. S. Crowcroft, M. Ogg, Shengfeng Yang, E. Gerndt, Marina Artuso, N. Kwak, D. F. Cowen, K. W. Edwards, M. Bishai, Ruifang Wang, T. Bergfeld, S. Menary, Dave Britton, G. Crawford, M. Dickson, Ryszard Stroynowski, T. Lee, H. Kagan, V. Shelkov, S. Schrenk, J. K. Nelson, P. Rankin, J. Fast, C. Qiao, Christopher G. White, I. Korolkov, D. J. Dumas, Sacha E Kopp, R. Mountain, M. S. Alam, N. Copty, H. A. Cho, B. C. Barish, Karl Berkelman, R. J. Morrison, E. R.F. Hyatt, M. Lattery, Mats A Selen, L. Gibbons, V. Fadeyev, A. J. Sadoff, J. Masui, B. Spaan, F. Muheim, D. H. Miller, T. Miao, Anders Ryd, M. Athanas, D. L. Hartill, P. Gaidarev, Z. Ling, Sz Márka, Maurice Garcia-Sciveres, X. Fu, I. P.J. Shipsey, S. Playfer, R. Poling, C. R. Sun, M.A. Palmer, C. R. Ng, R. Davis, Vivek Jain, W. T. Ford, R. D. Kass, Michael S. Witherell, George D Gollin, D. G. Cassel, H. Tajima, R. Balest, D. Fujino, J. J. O'Neill, R. Ammar, Yurii V. Mukhin, C. D. Jones, T. E. Coan, H. Severini, S. Chan, C. O'Grady, B. E. Berger, Pu Wang, M. Lohner, B. I. Eisenstein, Sheldon Stone, M. Goldberg, Paul Avery, G. Wei, B. Nemati, M. Sung, H. Yamamoto, D. Roberts, B. Gittelman, I. J. Kim, F. R. Wappler, S. E. Csorna, K. Kinoshita, G. W. Brandenburg, P. S. Drell, R. Elia, Jorge Luis Rodriguez, M. Saulnier, J. Ernst, Harold S. Park, Alice Bean, R. Kutschke, S. Kotov, R. Janicek, D. L. Kreinick, D. He, T. E. Browder, S. Roberts, Kenneth Bloom, P. Skubic, N. Katayama, G. Eigen, Shawn W. Henderson, D. M. Coffman, B. K. Heltsley, D. Cinabro, G. E. Gladding, S. Patton, D. W. Bliss, M. Gao, H. P. Paar, R. Fulton, E. Nordberg, Jeffrey Richman, G. S. Ludwig, D. B. MacFarlane, A. J. Weinstein, H. N. Nelson, D. Riley, D. M. Asner, J. Bartelt, T. Skwarnicki, Yuichi Kubota, P. C. Kim, Alain Bellerive, K. W. McLean, P. M. Patel, K. Lingel, S. W. Gray, Richard Wilson, M. Modesitt, R. Ehrlich, S. L. Jones, J. Dominick, J. S. Miller, Yanwen Liu, J. G. Smith, S. D. Johnson, V. Savinov, Philip Baringer, and Xiangjun Xing
Subjects: Physics, Crystallography, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Isospin, Radiative decay, General Physics and Astronomy
Abstract: Using data collected with the CLEO II detector, we have observed the isospin-violating decay {ital D}{sub {ital s}}{sup *+}{r_arrow}{ital D}{sup +}{sub {ital s}}{pi}{sup 0}. The decay rate for this mode, relative to the dominant radiative decay, is found to be {Gamma}({ital D}{sub {ital s}}{sup *+}{r_arrow}{ital D}{sup +}{sub {ital s}}{pi}{sup 0}) /{Gamma}({ital D}{sub {ital s}}{sup *+}{r_arrow}{ital D}{sup +}{ital s}{gamma}) =0.062{sub {minus}0.018}{sup +0.020}{plus_minus}0.022. {copyright} {ital 1995} {ital The} {ital American} {ital Physical} {ital Society}.
Published: 1995

119. Measurement of α from τ decays

Author: Pu Wang, E. I. Shibata, T. E. Coan, D. B. MacFarlane, Jungil Lee, A. J. Weinstein, E. Gerndt, D. M. Coffman, H. N. Nelson, K. W. Edwards, J. Masui, Z. Egyed, B. Spaan, J. K. Nelson, B. K. Heltsley, R. Ehrlich, D. Z. Besson, Anders Ryd, M. Athanas, M. Dickson, G. D. Gollin, S. L. Jones, T. Liu, C. Bebek, N. Kwak, J. Dominick, A. P. Freyberger, M. Bishai, M. Sivertz, C. Qiao, R. Mountain, Vivek Jain, Ruifang Wang, T. Miao, S. Nakanishi, E. H. Thorndike, T. Bergfeld, V. Fadeyev, S. Menary, Dave Britton, John Yelton, M. Sung, D. Coppage, R. L. McIlwain, M. Lambrecht, J. P. Alexander, D. G. Cassel, D. Gibaut, V. Shelkov, S. Schrenk, D. Roberts, F. Muheim, D. L. Kreinick, M. Ogg, R. S. Galik, D. J. Dumas, S. Roberts, S. Playfer, Ryszard Stroynowski, Karl Berkelman, D. L. Hartill, A. Soffer, J. Fast, P. Rankin, D. S. Crowcroft, Christopher G. White, G. Zhu, Marina Artuso, B. Nemati, B. I. Eisenstein, V. Savinov, D. Cinabro, G. E. Gladding, D. H. Miller, S. Patton, Yoram Rozen, F. R. Wappler, Youngjoon Kwon, G. Crawford, Frank Würthwein, K. Cho, H. Kagan, Philip Baringer, Shengfeng Yang, B. Gittelman, Xiangjun Xing, D. F. Cowen, R. J. Morrison, Mats A Selen, M. S. Alam, A. J. Sadoff, M. Gao, P. Gaidarev, E. R.F. Hyatt, M. Lattery, H. P. Paar, R. Fulton, J. S. Miller, X. Fu, M. Modesitt, J. Urheim, I. J. Kim, R. Ammar, E. Nordberg, H. Severini, S. Chan, G. S. Ludwig, C. O'Grady, C. D. Jones, H. Yamamoto, Maurice Garcia-Sciveres, Yanwen Liu, J. G. Smith, Z. Ling, K. K. Gan, T. Skwarnicki, D. He, B. E. Berger, W. S. Brower, P. C. Kim, T. E. Browder, P. Pomianowski, I. P.J. Shipsey, M. Goldberg, G. C. Moneti, Harold S. Park, Alice Bean, Ilya Kravchenko, Michael Wood, J. W. Hinson, A. Wolf, R. Kutschke, S. Sanghera, M.A. Palmer, Kenneth Bloom, M. Lohner, N. Katayama, M. L. Kelly, S. W. Gray, D. W. Bliss, N. Hancock, G. Eigen, Ha Lam, J. D. Richman, B. C. Barish, P. Skubic, D. Riley, S. E. Csorna, P. S. Drell, R. Elia, Jorge Luis Rodriguez, M. Saulnier, J. Ernst, G. Wei, K. Kinoshita, G. W. Brandenburg, D. Payne, H. A. Cho, D. M. Asner, R. Poling, C. R. Ng, Michael S. Witherell, G. Masek, Juliet Ritchie Patterson, J. Bartelt, Shawn W. Henderson, H. Tajima, T. K. Nelson, M. M. Zoeller, K. Honscheid, Yuichi Kubota, N. B. Mistry, C. M. Korte, D. Fujino, J. J. O'Neill, Yurii V. Mukhin, Alain Bellerive, K. W. McLean, P. M. Patel, L. Gibbons, K. Lingel, W. R. Ross, R. Davis, J. Gronberg, N. Horwitz, M. Chadha, I. Volobouev, I. Korolkov, S. Kotov, J. J. Thaler, N. Copty, Richard Wilson, R. Janicek, J. Mevissen, M. Momayezi, J. Kandaswamy, D. Peterson, C. R. Sun, W. T. Ford, R. D. Kass, R. Balest, Sheldon Stone, Paul Avery, and A. H. Mahmood
Subjects: Quantum chromodynamics, Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Spectral moments, Electron–positron annihilation, Hadron, Mass spectrum, High Energy Physics::Experiment, Invariant mass, Constant (mathematics), Parametrization
Abstract: We present measurements of spectral moments extracted from the invariant mass distributions of the final states of hadronic τ decay products recorded in the CLEO detector. From a fit of theoretical predictions to the measurements of spectral moments and the total hadronic decay width of the τ, we determine the strong coupling constant and a set of non-perturbative QCD parameters. The strong coupling constant is measured to be α s ( m τ ) = 0.306 ± 0.024, which when extrapolated to the Z mass, yields α s ( M z ) = 0.114 ± 0.003.
Published: 1995

120. Search forB→ℓν¯ℓ

Author: W. R. Ross, D. Riley, E. H. Thorndike, M. Lohner, N. Horwitz, J. J. O'Neill, M. Chadha, D. Coppage, J. P. Alexander, D. J. Payne, James E. Fast, Yurii V. Mukhin, H. Kagan, T. Liu, S. Playfer, G. E. Gladding, Z. Ling, Yuichi Kubota, C. P. O'Grady, M. Modesitt, H. A. Cho, John E. Bartelt, D. J. Dumas, R. S. Galik, C. R. Ng, M. Momayezi, Robert K. Kutschke, D. Gibaut, S. W. Gray, R. J. Morrison, Mats A Selen, Michael S. Witherell, M.K. Sung, Karl Berkelman, M. Ogg, G. Zhu, H. Tajima, A. P. Freyberger, Shawn W. Henderson, G. Masek, Juliet Ritchie Patterson, Alain Bellerive, Horst Severini, S. Roberts, A. J. Sadoff, D. Z. Besson, S. J. Patton, X. Fu, D. A. Roberts, Anders Ryd, M. Athanas, B. E. Berger, J. L. Rodriguez, P. S. Drell, Frank Würthwein, R. Elia, R. Ehrlich, K. K. Gan, T. Skwarnicki, M. Saulnier, K. Cho, Marina Artuso, S. L. Jones, P. C. Kim, F. Muheim, R. Mountain, N. B. Mistry, M. Dickson, M. Garcia-Sciveres, K. Honscheid, M. Goldberg, G. C. Moneti, M. Kelly, D. Cinabro, C. M. Korte, N. Kwak, R. J. Wilson, Vipul Jain, John Yelton, E.R.F. Hyatt, J. Masui, S. Nakanishi, Sheldon Stone, M. Bishai, B. Gittelman, J. Mevissen, J. Kandaswamy, Ryszard Stroynowski, D. Fujino, Paul Avery, I. J. Kim, W. S. Brower, P. Pomianowski, M. Lambrecht, D. G. Cassel, C. Qiao, K. W. Edwards, G. Wei, J. A. Ernst, Yoram Rozen, E. Gerndt, Harold S. Park, P. Rankin, Philip Baringer, D. L. Hartill, R. Poling, Christopher G. White, D. M. Asner, P. M. Patel, D. Peterson, I. P. J. Shipsey, K. W. McLean, D. He, M. Gao, Xiangjun Xing, R. Ammar, J. Gronberg, D. W. Bliss, E. I. Shibata, Ilya Kravchenko, Janice Nelson, Z. Egyed, C. R. Sun, W. T. Ford, D. S. Crowcroft, J. Urheim, Alice Bean, Ilya Korolkov, Dave Britton, R. L. McIlwain, A. Soffer, R. D. Kass, B. I. Eisenstein, H. P. Paar, S. Chan, R. Fulton, R. Balest, N. Copty, C. D. Jones, Michael Wood, J. W. Hinson, S. Schrenk, B. Nemati, P. Skubic, R. Davis, F. R. Wappler, J. S. Miller, Glen D. Crawford, L. K. Gibbons, T. Bergfeld, A. J.R. Weinstein, June Hyuk Lee, M. S. Alam, Shengfeng Yang, D. H. Miller, Vitaliy Fadeyev, T. K. Nelson, R. Janicek, S. Menary, P. Gaidarev, Igor Volobouev, M. M. Zoeller, Yanwen Liu, Y. J. Kwon, B. Spaan, J. G. Smith, M.A. Palmer, E. Nordberg, A. H. Mahmood, V.G. Shelkov, Kenneth Bloom, D. F. Cowen, T. Miao, S. Sanghera, Pu Wang, N. Katayama, G. Eigen, J. J. Thaler, G. S. Ludwig, N. Hancock, K. Lingel, S. E. Csorna, Ha Lam, J. D. Richman, M. Lattery, S. Kotov, B. C. Barish, K. Kinoshita, G. W. Brandenburg, T. E. Coan, D. B. MacFarlane, H. N. Nelson, A. Wolf, H. Yamamoto, R. Wang, D. L. Kreinick, C. Bebek, T. E. Browder, J. Dominick, V. Savinov, D. M. Coffman, B. K. Heltsley, and G. D. Gollin
Subjects: Combinatorics, Physics, General Physics and Astronomy
Abstract: We search for the decays ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}}$ in a sample of $2.2\ifmmode\times\else\texttimes\fi{}{10}^{6}$ charged $B$ decays using the CLEO detector. We see no evidence for a signal in any channel and set upper limits on the branching fractions of $B({B}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\tau}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\tau}})l2.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$, $B({B}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}})l2.1\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$, and $B({B}^{\ensuremath{-}}\ensuremath{\rightarrow}{e}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{e})l1.5\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$ at the 90% confidence level.
Published: 1995

121. Form Factor Ratio Measurement inΛc+→Λe+νe

Author: P. Zadorozhny, F. Muheim, D. He, J. J. Thaler, T. E. Browder, Richard Wilson, S. Playfer, C. D. Jones, M. Momayezi, M. Sapper, Jungil Lee, R. Ammar, P. Skubic, M. Modesitt, M. Goldberg, M.A. Palmer, T. Skwarnicki, P. C. Kim, D. Riley, Shawn W. Henderson, H. Severini, S. Chan, C. O'Grady, Ha Lam, D. H. Miller, M. S. Alam, P. Gaidarev, J. Bartelt, J. Ernst, J. G. Smith, G. Zhu, X. Fu, B. C. Barish, J. K. Nelson, D. Gibaut, E. R.F. Hyatt, M. Lattery, A. Wolf, E. Gerndt, A. H. Mahmood, Z. Ling, J. Masui, B. Spaan, K. W. Edwards, S. Sanghera, I. P.J. Shipsey, R. Mountain, Z. Egyed, M. Procario, N. Kwak, K. Lingel, M. Bishai, Anders Ryd, W. S. Brower, M. Athanas, N. Hancock, Vivek Jain, J. Mevissen, H. Yamamoto, P. Pomianowski, D. Sperka, Yuichi Kubota, C. M. Daubenmier, S. Menary, Dave Britton, M. Sung, G. C. Moneti, J. Kandaswamy, Ilya Kravchenko, Ryszard Stroynowski, Marina Artuso, Ruifang Wang, T. Bergfeld, R. L. McIlwain, T. Miao, S. Salman, Michael Wood, J. W. Hinson, C. R. Sun, W. T. Ford, Maurice Garcia-Sciveres, P. S. Drell, V. Shelkov, S. Schrenk, P. Rankin, R. D. Kass, R. Balest, S. E. Csorna, F. Butler, H. Tajima, D. Peterson, Jorge Luis Rodriguez, T. K. Nelson, K. Kinoshita, M. Saulnier, Chunjie Wang, R. Davis, E. I. Shibata, D. G. Cassel, George D Gollin, D. Fujino, J. Gronberg, John Yelton, J. S. Miller, J. J. O'Neill, M. M. Zoeller, B. Nemati, M. Lambrecht, Alain Bellerive, Y. Kwon, J. Urheim, W. R. Ross, D. B. MacFarlane, A. J. Weinstein, M. L. Kelly, B. Gittelman, Yurii V. Mukhin, N. Horwitz, M. Chadha, D. Z. Besson, Shengfeng Yang, H. N. Nelson, S. W. Gray, H. Kagan, I. Volobouev, I. J. Kim, F. R. Wappler, B. I. Eisenstein, Sheldon Stone, P. M. Patel, D. F. Cowen, Paul Avery, K. Honscheid, K. K. Gan, T. Liu, C. M. Korte, B. Geiser, M. Gao, C. Bebek, M. Lohner, H. P. Paar, R. Fulton, Pu Wang, K. Cho, N. Copty, D. J. Dumas, A. P. Freyberger, N. B. Mistry, B. Ong, E. Nordberg, Jeffrey Richman, G. S. Ludwig, R. J. Morrison, Mats A Selen, Karl Berkelman, J. Fast, L. Gibbons, A. J. Sadoff, Christopher G. White, V. Savinov, D. S. Crowcroft, Yoram Rozen, F. Würthwein, Philip Baringer, Xiangjun Xing, G. Crawford, R. Ehrlich, C. Qiao, S. Nakanishi, S. L. Jones, E. H. Thorndike, J. Dominick, D. Coppage, J. P. Alexander, Alice Bean, R. Kutschke, M. Ogg, S. Kotov, Kenneth Bloom, N. Katayama, G. Eigen, D. L. Kreinick, S. Roberts, M. Battle, D. Cinabro, S. Patton, Daniel Johnson, D. M. Coffman, B. K. Heltsley, G. Wei, D. Payne, H. A. Cho, D. L. Hartill, R. Poling, C. R. Ng, Michael S. Witherell, G. Masek, and Juliet Ritchie Patterson
Subjects: Physics, Semileptonic decay, Combinatorics, Particle physics, Angular distribution, Maximum likelihood, Electron–positron annihilation, Form factor (quantum field theory), General Physics and Astronomy, Statistical analysis, Ratio measurement, Lambda baryon
Abstract: The angular distributions of the decay ${\ensuremath{\Lambda}}_{c}^{+}\ensuremath{\rightarrow}\ensuremath{\Lambda}{e}^{+}{\ensuremath{\nu}}_{e}$ have been studied using the CLEO II detector. By performing a three-dimensional maximum likelihood fit, the form factor ratio ${R\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}f}_{2}{/f}_{1}$ is determined to be $\ensuremath{-}0.25\ifmmode\pm\else\textpm\fi{}0.14\ifmmode\pm\else\textpm\fi{}0.08$. The decay asymmetry parameter of the ${\ensuremath{\Lambda}}_{c}$ averaged over ${q}^{2}$ is calculated to be ${\ensuremath{\alpha}}_{{\ensuremath{\Lambda}}_{c}}{\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}\ensuremath{-}0.82}_{\ensuremath{-}0.06\ensuremath{-}0.03}^{+0.09+0.06}$.
Published: 1995

122. New Decay Modes of theΛc+Charmed Baryon

Author: Z. Ling, Juliet Ritchie Patterson, D. He, I. P.J. Shipsey, J. J. Thaler, T. E. Browder, Jungil Lee, R. Davis, D. G. Cassel, H. Tajima, M. Momayezi, M. Sapper, A. Wolf, J. Gronberg, D. Fujino, N. Horwitz, J. J. O'Neill, Yurii V. Mukhin, S. Sanghera, M. Chadha, N. Hancock, C. M. Daubenmier, Ryszard Stroynowski, S. E. Csorna, B. Ong, G. Zhu, M. Gao, H. P. Paar, R. Fulton, P. Skubic, K. Kinoshita, S. Nakanishi, M. L. Kelly, S. W. Gray, Richard Wilson, J. Urheim, G. Wei, P. Rankin, T. Skwarnicki, D. M. Coffman, D. Gibaut, J. Fast, P. C. Kim, E. H. Thorndike, Christopher G. White, D. Payne, H. Kagan, H. A. Cho, B. K. Heltsley, Anders Ryd, Chunjie Wang, M. Athanas, E. Nordberg, Jeffrey Richman, G. D. Gollin, D. L. Hartill, Shawn W. Henderson, M. Modesitt, B. Nemati, R. Poling, C. R. Ng, G. S. Ludwig, B. I. Eisenstein, K. Lingel, D. Riley, D. L. Kreinick, T. Miao, B. Gittelman, N. Kwak, M. Bishai, Michael S. Witherell, I. J. Kim, D. Coppage, M. Sung, J. Bartelt, J. P. Alexander, W. R. Ross, F. R. Wappler, J. G. Smith, R. J. Morrison, S. Kotov, S. Roberts, M. Battle, Mats A Selen, A. J. Sadoff, Shengfeng Yang, D. J. Dumas, Maurice Garcia-Sciveres, R. Ehrlich, Marina Artuso, Y. Kwon, M. Ogg, D. H. Miller, Yuichi Kubota, I. Volobouev, T. K. Nelson, A. H. Mahmood, Karl Berkelman, S. Menary, Dave Britton, P. Gaidarev, W. S. Brower, S. L. Jones, P. S. Drell, R. L. McIlwain, X. Fu, E. Gerndt, D. F. Cowen, D. B. MacFarlane, A. J. Weinstein, L. Gibbons, K. W. Edwards, P. Pomianowski, D. Cinabro, D. S. Crowcroft, D. Z. Besson, Jorge Luis Rodriguez, V. Shelkov, S. Schrenk, J. Dominick, Alain Bellerive, M. Saulnier, R. Ammar, Z. Egyed, H. N. Nelson, M. M. Zoeller, Sheldon Stone, S. Patton, Paul Avery, Ilya Kravchenko, D. Sperka, S. Salman, Michael Wood, P. M. Patel, H. Severini, S. Chan, J. K. Nelson, Ruifang Wang, V. Savinov, T. Bergfeld, B. Geiser, J. W. Hinson, Daniel Johnson, C. O'Grady, G. Crawford, M. S. Alam, Yoram Rozen, R. Mountain, F. Würthwein, K. K. Gan, M. Lohner, J. Ernst, E. R.F. Hyatt, Pu Wang, K. Cho, F. Butler, M. Lattery, C. Qiao, T. Liu, Philip Baringer, P. Zadorozhny, F. Muheim, N. B. Mistry, John Yelton, M. Lambrecht, J. Mevissen, C. Bebek, Xiangjun Xing, A. P. Freyberger, J. Kandaswamy, S. Playfer, G. C. Moneti, D. Peterson, C. R. Sun, W. T. Ford, R. D. Kass, J. S. Miller, R. Balest, E. I. Shibata, Alice Bean, R. Kutschke, H. Yamamoto, Kenneth Bloom, N. Katayama, G. Eigen, M.A. Palmer, Ha Lam, N. Copty, K. Honscheid, C. M. Korte, B. C. Barish, C. D. Jones, M. Goldberg, J. Masui, B. Spaan, Vivek Jain, and G. Masek
Subjects: Baryon, Physics, Charmed baryons, Crystallography, Pair production, Meson, Branching fraction, General Physics and Astronomy, Atomic physics, Lambda baryon, Lambda, Sigma baryon
Abstract: We have observed five new decay modes of the charmed baryon {Lambda}{sup +}{sub {ital c}} using data collected with the CLEO II detector. Four decay modes, {Lambda}{sup +}{sub {ital c}}{r_arrow}{ital p{bar K}}{sup 0}{eta}, {Lambda}{eta}{pi}{sup +}, {Sigma}{sup +}{eta}, and {Sigma}{sup *+}{eta}, are first observations of final states with an {eta} meson, while the fifth mode, {Lambda}{sup +}{sub {ital c}}{r_arrow}{Lambda}{ital {bar K}}{sup 0}{ital K}{sup +}, requires the creation of an {ital s{bar s}} quark pair. We measure the branching fractions of these modes relative to {Lambda}{sup +}{sub {ital c}}{r_arrow}{ital pK}{sup -}{pi}{sup +} to be 0.25{plus_minus}0.04{plus_minus}0.04, 0.35{plus_minus}0.05{plus_minus}0.06, 0.11{plus_minus}0.03{plus_minus}0.02, 0.17{plus_minus}0.04{plus_minus}0.03, and 0.12{plus_minus}0.02{plus_minus}0.02, respectively.
Published: 1995

123. Observation of Excited Charmed Baryon States Decaying toΛc+π+π−

Author: D. Payne, H. A. Cho, D. Riley, D. L. Hartill, R. Poling, C. R. Ng, R. Davis, George D Gollin, J. Bartelt, H. Yamamoto, C. M. Daubenmier, Michael S. Witherell, Ryszard Stroynowski, P. Zadorozhny, F. Muheim, Y. Kwon, D. Z. Besson, P. Rankin, Yuichi Kubota, S. Playfer, T. Miao, K. Honscheid, C. M. Korte, K. K. Gan, J. J. Thaler, Shawn W. Henderson, J. S. Miller, E. Gerndt, Chunjie Wang, N. Copty, T. Liu, Z. Ling, I. P.J. Shipsey, G. Masek, Juliet Ritchie Patterson, M. Momayezi, J. Gronberg, D. Gibaut, C. Bebek, M. Sapper, N. Horwitz, M. Chadha, K. W. Edwards, R. Ammar, H. Severini, S. Chan, C. O'Grady, M. S. Alam, Z. Egyed, P. S. Drell, D. Cinabro, A. P. Freyberger, V. Savinov, Yoram Rozen, F. Würthwein, Alice Bean, Shengfeng Yang, T. Skwarnicki, D. B. MacFarlane, A. J. Weinstein, J. Ernst, Maurice Garcia-Sciveres, D. S. Crowcroft, D. He, Jorge Luis Rodriguez, M. Saulnier, Philip Baringer, R. Kutschke, T. E. Browder, D. Sperka, P. C. Kim, S. Patton, Xiangjun Xing, H. Tajima, Alain Bellerive, Marina Artuso, D. F. Cowen, E. R.F. Hyatt, M. Lattery, H. N. Nelson, Kenneth Bloom, B. Nemati, Ruifang Wang, G. C. Moneti, P. M. Patel, B. Gittelman, N. Kwak, R. Ehrlich, M. Bishai, M.A. Palmer, A. H. Mahmood, T. Bergfeld, S. L. Jones, D. Fujino, D. G. Cassel, N. Katayama, Daniel Johnson, G. Wei, M. Gao, I. J. Kim, J. J. O'Neill, F. R. Wappler, S. Menary, J. Dominick, D. J. Dumas, H. P. Paar, G. Eigen, Dave Britton, R. L. McIlwain, P. Skubic, R. Fulton, C. Qiao, Richard Wilson, G. Crawford, E. I. Shibata, H. Kagan, M. Sung, D. M. Coffman, V. Shelkov, S. Schrenk, B. K. Heltsley, Karl Berkelman, B. I. Eisenstein, E. Nordberg, Jeffrey Richman, Yurii V. Mukhin, D. L. Kreinick, B. Geiser, G. S. Ludwig, L. Gibbons, K. Lingel, J. K. Nelson, S. Roberts, B. Ong, M. Battle, R. Mountain, S. E. Csorna, M. Lohner, S. Nakanishi, E. H. Thorndike, Anders Ryd, S. Kotov, R. J. Morrison, M. Athanas, G. Zhu, Mats A Selen, J. Fast, A. J. Sadoff, K. Kinoshita, Christopher G. White, D. Coppage, J. P. Alexander, F. Butler, John Yelton, Pu Wang, M. Lambrecht, Jungil Lee, D. H. Miller, P. Gaidarev, X. Fu, M. Ogg, T. K. Nelson, J. Mevissen, M. M. Zoeller, J. Urheim, J. Kandaswamy, D. Peterson, A. Wolf, S. Sanghera, N. Hancock, W. R. Ross, I. Volobouev, K. Cho, N. B. Mistry, J. Masui, B. Spaan, Vivek Jain, C. D. Jones, C. R. Sun, W. T. Ford, M. Goldberg, R. D. Kass, R. Balest, Sheldon Stone, Paul Avery, Ha Lam, B. C. Barish, M. Procario, W. S. Brower, P. Pomianowski, Ilya Kravchenko, S. Salman, Michael Wood, J. W. Hinson, M. Modesitt, J. G. Smith, M. L. Kelly, and S. W. Gray
Subjects: Charmed baryons, Physics, Baryon, Particle physics, Electron–positron annihilation, Excited state, Isospin, General Physics and Astronomy, State (functional analysis), Atomic physics, Lambda
Abstract: Using data collected by the CLEO II detector, we have observed two states decaying to {Lambda}{sup +}{sub {ital c}}{pi}{sup +}{pi}{sup {minus}}. Relative to the {Lambda}{sup +}{sub {ital c}}, their mass splittings are measured to be +307.5{plus_minus}0.4{plus_minus}1.0 and +342.2{plus_minus}0.2{plus_minus}0.5MeV/{ital c}{sup 2}, respectively; this represents the first measurement of the less massive state. These two states are consistent with being orbitally excited, isospin zero {Lambda}{sup +}{sub {ital c}} states.
Published: 1995

124. First Observation of the DecayΞc+→Ξ0e+νeand an Estimate of theΞc+Ξc0Lifetime Ratio

Author: J. Mevissen, J. Kandaswamy, Alain Bellerive, K. Lingel, C. Qiao, D. Peterson, S. Sanghera, F. Butler, P. M. Patel, B. Ong, P. Zadorozhny, F. Muheim, S. E. Csorna, Alice Bean, R. Kutschke, N. Hancock, R. Malchow, John Yelton, M. Lambrecht, J. Fast, D. Fujino, J. J. O'Neill, Y. Kwon, S. Nakanishi, E. H. Thorndike, J. Masui, W. R. Ross, B. Spaan, Pu Wang, K. Kinoshita, Yurii V. Mukhin, D. Z. Besson, H. Kagan, Richard Wilson, Christopher G. White, J. K. Nelson, S. Playfer, D. Coppage, J. P. Alexander, G. C. Moneti, I. Volobouev, S. Kotov, R. Davis, George D Gollin, E. Gerndt, M. Ogg, Kenneth Bloom, K. W. Edwards, B. Nemati, N. Katayama, K. K. Gan, Y. Skovpen, Z. Ling, Z. Egyed, G. Eigen, A. H. Mahmood, I. P.J. Shipsey, E. I. Shibata, R. Mountain, R. Ammar, Shengfeng Yang, K. Honscheid, Vivek Jain, D. Riley, M. L. Kelly, D. Gibaut, B. Gittelman, C. R. Sun, W. T. Ford, M. S. Alam, H. Severini, S. Chan, D. Sperka, J. Bartelt, D. F. Cowen, D. H. Miller, Ruifang Wang, M. Gao, S. W. Gray, R. J. Morrison, Mats A Selen, R. D. Kass, H. P. Paar, P. Gaidarev, A. J. Sadoff, C. O'Grady, J. Ernst, T. Bergfeld, R. Balest, M. Modesitt, H. Tajima, G. Zhu, X. Fu, K. Cho, D. G. Cassel, E. R.F. Hyatt, M. Lattery, N. Copty, C. D. Jones, T. Liu, R. Fulton, Jungil Lee, N. B. Mistry, C. Bebek, Yuichi Kubota, D. S. Crowcroft, J. J. Thaler, F. Ẅrthwein, A. P. Freyberger, I. J. Kim, F. R. Wappler, N. Kwak, C. M. Daubenmier, Ryszard Stroynowski, T. Skwarnicki, J. G. Smith, M. Bishai, M. Goldberg, Sheldon Stone, T. Miao, Paul Avery, P. Rankin, P. C. Kim, M. Sung, E. Nordberg, Jeffrey Richman, M. Momayezi, M. Sapper, S. Menary, Dave Britton, R. L. McIlwain, Chunjie Wang, G. Crawford, W. S. Brower, B. I. Eisenstein, V. Shelkov, S. Schrenk, P. Pomianowski, G. S. Ludwig, Ha Lam, G. Wei, Ilya Kravchenko, S. Salman, Michael Wood, Maurice Garcia-Sciveres, B. Geiser, D. B. MacFarlane, B. C. Barish, A. J. Weinstein, H. N. Nelson, G. Masek, Marina Artuso, Juliet Ritchie Patterson, M. Lohner, P. S. Drell, D. He, Jorge Luis Rodriguez, M. Saulnier, D. Payne, H. A. Cho, T. E. Browder, D. L. Hartill, R. Poling, C. R. Ng, Michael S. Witherell, H. Yamamoto, P. Skubic, M.A. Palmer, Shawn W. Henderson, T. K. Nelson, M. M. Zoeller, J. Urheim, D. J. Dumas, Karl Berkelman, L. Gibbons, J. Gronberg, N. Horwitz, M. Chadha, Anders Ryd, M. Athanas, V. Savinov, Yoram Rozen, Philip Baringer, Xiangjun Xing, J. S. Miller, R. Ehrlich, S. L. Jones, J. Dominick, D. L. Kreinick, S. Roberts, M. Battle, D. M. Coffman, B. K. Heltsley, D. Cinabro, S. Patton, and Daniel Johnson
Subjects: Nuclear physics, Physics, Semileptonic decay, Crystallography, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Electron–positron annihilation, General Physics and Astronomy, Cornell Electron Storage Ring
Abstract: Using the CLEO II detector at the Cornell Electron Storage Ring we have observed the decay modes {Xi}{sup +}{sub {ital c}}{r_arrow}{Xi}{sup 0}{ital e}{sup +}{nu}{sub {ital e}} and {Xi}{sup 0}{sub {ital c}}{r_arrow}{Xi}{sup {minus}}{ital e}{sup +}{nu}{sub {ital e}} by the detection of a {Xi}-positron pair of appropriate invariant mass. We find {ital B} ({Xi}{sup +}{sub {ital c}}{r_arrow}{Xi}{sup 0}{ital e}{sup +}{nu}{sub {ital e}}){sigma}({ital e}{sup +}{ital e}{sup {minus}}{r_arrow} {Xi}{sup +}{sub {ital cX}})=1.55{plus_minus}0.33{plus_minus}0.25 pb, {ital B} ({Xi}{sup 0}{sub {ital c}}{r_arrow}{Xi}{sup {minus}}{ital e}{sup +}{nu}{sub {ital e}}){sigma}({ital e}{sup +}{ital e}{sup {minus}}{r_arrow} {Xi}{sup 0}{sub {ital cX}})=0.63{plus_minus}0.12{plus_minus}0.10 pb, {ital B} ({Xi}{sup +}{sub {ital c}}{r_arrow}{Xi}{sup {minus}}{pi}{sup +}{pi}{sup +})/ {ital B} ({Xi}{sup +}{sub {ital c}}{r_arrow}{Xi}{sup 0}{ital e}{sup +}{nu}{sub {ital e}})= 0.44{plus_minus}0.11{sub {minus}0.06}{sup +0.11}, and {ital B} ({Xi}{sup 0}{sub {ital c}}{r_arrow}{Xi}{sup {minus}}{pi}{sup +})/{ital B} ({Xi}{sup 0}{sub {ital c}}{r_arrow}{Xi}{sup {minus}}{ital e}{sup +}{nu}{sub {ital e}})= 0.32{plus_minus}0.10{sub {minus}0.03}{sup +0.05}. Assuming the {Xi}{sup +}{sub {ital c}} and {Xi}{sup 0}{sub {ital c}} are equally produced in {ital e}{sup +}{ital e}{sup {minus}} annihilation events at 10 GeV, the lifetime ratio of {Xi}{sup +}{sub {ital c}}/{Xi}{sup 0}{sub {ital c}} is measured to be 2.46{plus_minus}0.70{sub {minus}0.23}{sup +0.33}.
Published: 1995

125. Υ(1S)→γ+noninteracting particles

Author: R. Balest, K. Cho, T. Ford, D. R. Johnson, K. Lingel, M. Lohner, P. Rankin, J. G. Smith, J. P. Alexander, C. Bebek, K. Berkelman, K. Bloom, T. E. Browder, D. G. Cassel, H. A. Cho, D. M. Coffman, D. S. Crowcroft, P. S. Drell, D. Dumas, R. Ehrlich, P. Gaidarev, R. S. Galik, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, S. Henderson, C. D. Jones, S. L. Jones, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, C. R. Ng, E. Nordberg, J. R. Patterson, D. Peterson, D. Riley, S. Salman, M. Sapper, F. Würthwein, M. M. Urish, P. Avery, A. Freyberger, J. Rodriguez, S. Yang, J. Yelton, D. Cinabro, T. Liu, M. Saulnier, R. Wilson, H. Yamamoto, T. Bergfeld, B. I. Eisenstein, G. Gollin, B. Ong, M. Palmer, M. Selen, J. J. Thaler, K. W. Edwards, M. Ogg, A. Bellerive, D. I. Britton, E. R. F. Hyatt, D. B. MacFarlane, P. M. Patel, B. Spaan, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, N. Copty, R. Davis, N. Hancock, M. Kelly, S. Kotov, I. Kravchenko, N. Kwak, H. Lam, Y. Kubota, M. Lattery, M. Momayezi, J. K. Nelson, S. Patton, R. Poling, V. Savinov, S. Schrenk, R. Wang, M. S. Alam, I. J. Kim, Z. Ling, A. H. Mahmood, J. J. O’Neill, H. Severini, C. R. Sun, F. Wappler, G. Crawford, C. M. Daubenmier, R. Fulton, D. Fujino, K. K. Gan, K. Honscheid, H. Kagan, R. Kass, J. Lee, R. Malchow, M. Sung, C. White, M. M. Zoeller, F. Butler, X. Fu, B. Nemati, W. R. Ross, P. Skubic, M. Wood, M. Bishai, J. Fast, E. Gerndt, R. L. McIlwain, T. Miao, D. H. Miller, M. Modesitt, D. Payne, E. I. Shibata, I. P. J. Shipsey, P. N. Wang, M. Battle, J. Ernst, L. Gibbons, Y. Kwon, S. Roberts, E. H. Thorndike, C. H. Wang, J. Dominick, M. Lambrecht, S. Sanghera, V. Shelkov, T. Skwarnicki, R. Stroynowski, I. Volobouev, G. Wei, P. Zadorozhny, M. Artuso, M. Gao, M. Goldberg, D. He, N. Horwitz, G. C. Moneti, R. Mountain, F. Muheim, Y. Mukhin, S. Playfer, Y. Rozen, S. Stone, X. Xing, G. Zhu, J. Bartelt, S. E. Csorna, Z. Egyed, V. Jain, D. Gibaut, K. Kinoshita, P. Pomianowski, B. Barish, M. Chadha, S. Chan, D. F. Cowen, G. Eigen, J. S. Miller, C. O’Grady, J. Urheim, A. J. Weinstein, M. Athanas, W. Brower, G. Masek, H. P. Paar, M. Sivertz, J. Gronberg, R. Kutschke, S. Menary, R. J. Morrison, S. Nakanishi, H. N. Nelson, T. K. Nelson, C. Qiao, J. D. Richman, A. Ryd, D. Sperka, H. Tajima, and M. S. Witherell
Subjects: Physics, Massless particle, Particle physics, Antiparticle, Meson, Antimatter, Hadron, High Energy Physics::Experiment, Elementary particle, Radioactive decay, Boson
Abstract: We consider the decay of [Upsilon](1[ital S]) particles produced at CESR into a photon which is observed by the CLEO detector plus particles which are not seen. These could be real particles which fall outside of our acceptance, or particles which are noninteracting. We report the results of our search fo the process [Upsilon](1[ital S])[r arrow][gamma]+ unseen'' for photon energies [gt]1 GeV, obtaining limits for the case where unseen'' is either a single particle or a particle-antiparticle pair. Our upper limits represent the highest sensitivity measurements for such decays to date.
Published: 1995

126. Measurement of theB¯→D*lν¯ branching fractions and ‖Vcb‖

Author: S. Playfer, C. D. Jones, C. M. Daubenmier, Ryszard Stroynowski, P. Rankin, Chunjie Wang, C. Qiao, J. Gronberg, N. Horwitz, M. Goldberg, M. Chadha, Shengfeng Yang, M. Modesitt, D. F. Cowen, D. L. Kreinick, H. P. Paar, R. Fulton, G. Masek, B. Ong, R. Kennett, B. Gittelman, T. Miao, N. Kwak, B. Nemati, D. Gibaut, Juliet Ritchie Patterson, S. Nakanishi, E. H. Thorndike, D. S. Crowcroft, I. J. Kim, F. R. Wappler, Pu Wang, E. Nordberg, Jeffrey Richman, S. Roberts, C. R. Sun, W. T. Ford, Kenneth Bloom, M. Battle, R. D. Kass, J. G. Smith, R. Ammar, T. Liu, C. Bebek, S. Sanghera, G. S. Ludwig, D. Coppage, J. P. Alexander, D. H. Miller, Ha Lam, K. Lingel, A. P. Freyberger, N. Copty, R. Balest, H. Severini, S. Chan, S. Menary, George R. Kalbfleisch, N. Hancock, G. C. Moneti, G. Vasseur, C. O'Grady, G. Crawford, P. Gaidarev, X. Fu, N. Katayama, G. Eigen, H. Kagan, Y. Kwon, M. Ogg, D. Z. Besson, R. S. Galik, J. J. Thaler, J. Urheim, Dave Britton, R. L. McIlwain, V. Shelkov, S. Schrenk, E. I. Shibata, D. M. Coffman, B. C. Barish, Karl Berkelman, J. Masui, B. Spaan, L. Gibbons, B. K. Heltsley, D. B. MacFarlane, M. Daoudi, R. Davis, J. Fast, J. K. Nelson, A. J. Weinstein, M. L. Kelly, G. Zhu, George D Gollin, K. K. Gan, M.A. Palmer, Vivek Jain, H. N. Nelson, S. W. Gray, Richard Wilson, M. Momayezi, Jungil Lee, Christopher G. White, Anders Ryd, M. Athanas, Y. Skovpen, R. J. Morrison, Mats A Selen, M. Sapper, R. Mountain, R. Ehrlich, B. Geiser, D. Cinabro, M. Procario, Sheldon Stone, D. He, M. Sung, A. J. Sadoff, S. Patton, Paul Avery, D. Payne, H. A. Cho, S. L. Jones, T. E. Browder, Alice Bean, J. Dominick, D. Acosta, Ilya Kravchenko, R. Kutschke, F. Butler, S. Salman, Michael Wood, M. S. Alam, Daniel Johnson, D. L. Hartill, J. S. Miller, T. Skwarnicki, K. W. Edwards, Z. Egyed, M. Thulasidas, R. Malchow, S. E. Csorna, H. Yamamoto, P. Skubic, John Yelton, M. Lambrecht, R. Poling, T. K. Nelson, M. Lohner, C. R. Ng, P. C. Kim, J. Ernst, Marina Artuso, S. Kotov, K. Kinoshita, D. Perticone, D. Sperka, V. Savinov, S. Henderson, Michael S. Witherell, M. M. Zoeller, K. Honscheid, Yoram Rozen, F. Würthwein, Alain Bellerive, E. R.F. Hyatt, M. Lattery, Philip Baringer, S. Ball, Xiangjun Xing, Ruifang Wang, G. Wei, P. M. Patel, T. Bergfeld, D. Riley, J. Bartelt, Maurice Garcia-Sciveres, P. S. Drell, Yuichi Kubota, Jorge Luis Rodriguez, M. Saulnier, D. G. Cassel, B. I. Eisenstein, Z. Ling, I. P.J. Shipsey, H. Tajima, D. Fujino, J. J. O'Neill, Yurii V. Mukhin, W. R. Ross, I. Volobouev, K. Cho, N. B. Mistry, J. Mevissen, J. Kandaswamy, D. Peterson, P. Zadorozhny, and F. Muheim
Subjects: Combinatorics, Semileptonic decay, Physics, Particle properties, Partial width, Branching fraction, B meson
Abstract: From this partial width we calculate [ital [bar B]][r arrow][ital D][sup *][ital l][bar [nu]] branching fractions that do not depend on [ital f][sub +[minus]]/[ital f][sub 00] or the individual [ital B] lifetimes, but only on the charged to neutral [ital B] lifetime ratio. The product of the CKM matrix element [vert bar][ital V][sub [ital c][ital b]][vert bar] times the normalization of the decay form factor at the point of no recoil of the [ital D][sup *] meson, [ital scrF]([ital y]=1), is determined from a linear fit to the combined differential decay rate of the exclusive [ital [bar B]][r arrow][ital D][sup *][ital l][bar [nu]] decays: [vert bar][ital V][sub [ital c][ital b]][vert bar][ital scrF](1)=0.0351[plus minus]0.0019 (stat) [plus minus]0.0018 (syst) [plus minus]0.0008 (lifetime). The value for [vert bar][ital V][sub [ital c][ital b]][vert bar] is extracted using theoretical calculations of the form factor normalization.
Published: 1995

127. Observation of B → ψπ decays

Author: B. Geiser, J. Gronberg, N. Horwitz, M. Lohner, T. Skwarnicki, M. Chadha, M. S. Alam, P. C. Kim, M. Sung, J. Ernst, J. Urheim, E. R.F. Hyatt, M. Lattery, J. Mevissen, Alain Bellerive, J. Kandaswamy, P. M. Patel, M. L. Kelly, S. E. Csorna, Sheldon Stone, D. G. Cassel, D. Peterson, Paul Avery, Anders Ryd, M. Athanas, S. W. Gray, T. Liu, K. Kinoshita, H. Kagan, P. S. Drell, C. Bebek, M. Modesitt, Jorge Luis Rodriguez, M. Saulnier, C. D. Jones, A. P. Freyberger, D. H. Miller, P. Zadorozhny, F. Muheim, P. Gaidarev, X. Fu, R. J. Morrison, Mats A Selen, A. J. Sadoff, B. I. Eisenstein, Richard Wilson, M. Gao, H. P. Paar, J. G. Smith, R. Davis, George D Gollin, D. J. Dumas, B. Nemati, D. Gibaut, K. Cho, T. K. Nelson, J. J. Thaler, B. Gittelman, C. M. Daubenmier, Ryszard Stroynowski, D. Cinabro, C. R. Sun, J. K. Nelson, W. T. Ford, Karl Berkelman, I. J. Kim, F. R. Wappler, N. B. Mistry, R. D. Kass, M. M. Zoeller, Marina Artuso, R. Fulton, R. Balest, S. Playfer, S. Nakanishi, D. S. Crowcroft, W. S. Brower, E. H. Thorndike, R. Mountain, S. Patton, S. Sanghera, Y. Skovpen, M. Momayezi, P. Rankin, M. Goldberg, W. R. Ross, P. Pomianowski, L. Gibbons, G. C. Moneti, G. Zhu, N. Kwak, D. Riley, N. Hancock, M. Sapper, Y. Kwon, M. Bishai, I. Volobouev, Ilya Kravchenko, S. Salman, D. Coppage, G. Crawford, Chunjie Wang, Michael Wood, E. Nordberg, Jeffrey Richman, Maurice Garcia-Sciveres, Daniel Johnson, D. Z. Besson, J. Bartelt, J. P. Alexander, F. Butler, E. I. Shibata, S. Menary, G. S. Ludwig, R. Malchow, K. Lingel, Dave Britton, R. L. McIlwain, Ha Lam, John Yelton, K. K. Gan, M. Lambrecht, M. Ogg, Shengfeng Yang, V. Shelkov, S. Schrenk, R. Ammar, Yuichi Kubota, H. Severini, A. H. Mahmood, D. F. Cowen, B. C. Barish, J. Masui, B. Spaan, Vivek Jain, Pu Wang, D. B. MacFarlane, C. Qiao, S. Chan, Jungil Lee, A. J. Weinstein, D. M. Coffman, C. O'Grady, H. N. Nelson, B. K. Heltsley, D. He, T. E. Browder, T. Miao, P. Skubic, D. Fujino, J. J. O'Neill, Shawn W. Henderson, Yurii V. Mukhin, Z. Ling, I. P.J. Shipsey, H. Tajima, E. Gerndt, K. W. Edwards, Z. Egyed, D. Sperka, Ruifang Wang, T. Bergfeld, M.A. Palmer, G. Wei, D. Payne, H. A. Cho, D. L. Hartill, B. Ong, R. Poling, C. R. Ng, Michael S. Witherell, H. Yamamoto, G. Masek, J. Fast, Juliet Ritchie Patterson, Christopher G. White, K. Honscheid, N. Copty, V. Savinov, Yoram Rozen, F. Würthwein, Philip Baringer, Xiangjun Xing, D. L. Kreinick, S. Roberts, M. Battle, R. Ehrlich, S. L. Jones, J. Dominick, J. S. Miller, Alice Bean, R. Kutschke, Kenneth Bloom, N. Katayama, G. Eigen, and S. Kotov
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, Detector, Cornell Electron Storage Ring
Abstract: We have found the first evidence for the Cabibbo suppressed, color suppressed decay B − → ψπ − in a data sample of 4 million B decays obtained by the CLEO detector at the Cornell Electron Storage Ring (CESR). The branching ratio is found to be (4.3±2.3)% of the Cabibbo allowed B − → ψK − decay mode, which is consistent with theoretical expectations.
Published: 1995

128. The design and performance of IceCube DeepCore

Author: T. Griesel, K. Wiebe, Carsten Rott, Dave Nygren, J. Miller, M. Bissok, Xianwu Xu, S. Boeser, C. Ha, K. Rawlins, P. Berghaus, M. L. Benabderrahmane, Jay Gallagher, J. K. Becker, R. Nahnhauer, Q. Swillens, Christian Bohm, Aongus O'Murchadha, James Madsen, Jon Dumm, S. Euler, T. Waldenmaier, Thomas Meures, Joanna Kiryluk, A. Stoessl, M. Kowalski, M. Danninger, T. Kowarik, C. Walck, R. Ström, J. Petrovic, A. Olivas, A. Gross, Ignacio Taboada, Teresa Montaruli, S. Grullon, M. J. Carson, K. Andeen, M. V. D'Agostino, Timo Karg, Chris Wendt, M. Stamatikos, Damian Pieloth, M. Labare, P. B. Price, Paraic A. Kenny, Juanan Aguilar, M. J. Larson, M. Merck, A. M. Brown, Takao Kuwabara, A. Tamburro, Xinhua Bai, Markus Ahlers, Allan Hallgren, T. O. B. Schmidt, M. Richman, Fabian Kislat, B. Christy, S. Seunarine, R. Porrata, J. C. Díaz-Vélez, P. O. Hulth, J. Eisch, T. R. Wood, Seth M. Cohen, N. Milke, George Japaridze, R. J. Lauer, W. Huesnitz, Nathan Whitehorn, G. de Vries-Uiterweerd, C. De Clercq, T. Degner, Tim Ruhe, D. Rutledge, M. Walter, Peter Mészáros, O. Engdegård, Kurt Woschnagg, Klas Hultqvist, Samvel Ter-Antonyan, J. A. Goodman, D. Z. Besson, R. Wischnewski, B. Semburg, H. G. Sander, K. Helbing, Markus Ackermann, A. Schultes, Segev BenZvi, Paul Evenson, J. Feintzeig, S. Westerhoff, C. Colnard, Spencer Klein, Aya Ishihara, H. Wissing, A. Marotta, Larissa Paul, Chun Xu, J. Auffenberg, Todor Stanev, Dawn Williams, M. Stueer, Daniel Bindig, B. Hoffmann, F. Descamps, Kara Hoffman, Y. Sestayo, Dmitry Chirkin, H. Taavola, K. Beattie, Albrecht Karle, A. Silvestri, Christian Spiering, A. Tepe, A. H. Cruz Silva, Stijn Buitink, A. Piegsa, Ch. Weaver, O. Schulz, E. Blaufuss, J. C. Davis, S. H. Seo, Dariusz Gora, Hermann Kolanoski, R. Franke, K. Han, Elisa Resconi, Alexander Kappes, A. Franckowiak, Matt Dunkman, K. Mase, J. Berdermann, D. Altmann, K. Meagher, Kael Hanson, Thomas K. Gaisser, G. B. Yodh, T. Fischer-Wasels, Justin Vandenbroucke, Chad Finley, R. Morse, G. W. Sullivan, Wolfgang Rhode, M. Schunck, D. Berley, A. Schukraft, K. Laihem, S. M. Movit, R. Hellauer, T. Abu-Zayyad, Rasha Abbasi, H. Landsman, Dirk Ryckbosch, J. P. Huelss, Martin Wolf, S. Bechet, T. Gluesenkamp, L. Demiroers, M. M. Allen, S. Hussain, Simona Toscano, J. H. Koehne, F. Rothmaier, A. Van Overloop, R. W. Ellsworth, Steven W. Barwick, F. Clevermann, P. Redl, D. J. Koskinen, Donglian Xu, Karen S. Caballero-Mora, Darren Grant, M. Olivo, E. Middell, Elisa Bernardini, A. Goldschmidth, M. Ribordy, J. P. Yanez, M. Vehring, D. F. Cowen, F. A. Fedynitch, Jenni Adams, S. Panknin, J. L. Bazo Alba, J. Luenemann, Karl-Heinz Kampert, Kirill Filimonov, J. J. Beatty, S. Tilav, T. Feusels, S. Hickford, A. Schoenwald, J. Dreyer, Subir Sarkar, J. E. Jacobsen, Marcos Santander, R. G. Stokstad, J. Posselt, Y. Abdou, L. Gerhardt, K. Hoshina, L. Koepke, J. W. Nam, Glenn Spiczak, Reina H. Maruyama, D. Bose, E. Jacobi, U. Naumann, Paolo Desiati, K. H. Becker, D. J. Boersma, J. Blumenthal, H. S. Matis, E. A. Strahler, G. C. Hill, Michael J. Baker, L. Gladstone, Dirk Heinen, D. Seckel, S. Miarecki, A. R. Fazely, Tyce DeYoung, P. A. Toale, A. Homeier, Christopher Wiebusch, J. Daughhetee, R. C. Bay, J. van Santen, J. P. Rodrigues, T. Stezelberger, M. Krasberg, Olga Botner, Francis Halzen, P. Zarzhitsky, O. Fadiran, Henrik J. Johansson, S. Yoshida, N. van Eijndhoven, G. Kroll, K. Schatto, G. Kohnen, D. Tosi, Gerald Przybylski, M. Zoll, A. Haj Ismail, B. D. Fox, Naoko Kurahashi, D. Bertrand, M. Wallraff, M. Voge, M. Gurtner, S. Odrowski, M. Dierckxsens, B. Ruzybayev, C. Pérez de los Heros, Physics, and Elementary Particle Physics
Subjects: Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, FOS: Physical sciences, Antartica, Generator, Astrophysics, Neutrino telescope, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, IceCube Neutrino Observatory, Antarctica, DeepCore, Detector, IceCube, Neutrino, High Energy Physics - Experiment (hep-ex), WIMP, 0103 physical sciences, 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, Muon, 010308 nuclear & particles physics, Ice, ICE, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), GENERATOR, Supernova, Air shower, Physics and Astronomy, Neutrino detector, 13. Climate action, ddc:540, High Energy Physics::Experiment, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The IceCube neutrino observatory in operation at the South Pole, Antarctica, comprises three distinct components: a large buried array for ultrahigh energy neutrino detection, a surface air shower array, and a new buried component called DeepCore. DeepCore was designed to lower the IceCube neutrino energy threshold by over an order of magnitude, to energies as low as about 10 GeV. DeepCore is situated primarily 2100 m below the surface of the icecap at the South Pole, at the bottom center of the existing IceCube array, and began taking physics data in May 2010. Its location takes advantage of the exceptionally clear ice at those depths and allows it to use the surrounding IceCube detector as a highly efficient active veto against the principal background of downward-going muons produced in cosmic-ray air showers. DeepCore has a module density roughly five times higher than that of the standard IceCube array, and uses photomultiplier tubes with a new photocathode featuring a quantum efficiency about 35% higher than standard IceCube PMTs. Taken together, these features of DeepCore will increase IceCube's sensitivity to neutrinos from WIMP dark matter annihilations, atmospheric neutrino oscillations, galactic supernova neutrinos, and point sources of neutrinos in the northern and southern skies. In this paper we describe the design and initial performance of DeepCore., Comment: 22 pages, 13 figures
Published: 2012

129. All-particle cosmic ray energy spectrum measured with 26 IceTop stations

Author: Donglian Xu, Carsten Rott, J. Miller, M. Bissok, C. Pérez de los Heros, Xianwu Xu, C. Bohm, M. L. Benabderrahmane, M. Stüer, N. Milke, George Japaridze, K. Wiebe, R. Hellauer, Todor Stanev, M. W. E. Smith, S. Seunarine, I. Taboada, S. Flis, A. Haj Ismail, C. Wendt, F. Descamps, Markus Ahlers, O. Engdegård, K.-H. Becker, D. Rutledge, S. Odrowski, Larissa Paul, T. Abu-Zayyad, Juanan Aguilar, Takao Kuwabara, J. Dreyer, Ch. Weaver, Subir Sarkar, Segev BenZvi, Y. Abdou, Benedikt Riedel, Tim Ruhe, M. Walter, B. Christy, Seth M. Cohen, Spencer Klein, Peter Mészáros, J. A. Goodman, Matt Dunkman, T. Fischer-Wasels, A. Schukraft, K. Laihem, Chad Finley, R. Franke, C. Walck, S. H. Seo, A. Ishihara, K. Rawlins, M. Labare, D. Bose, B. Ruzybayev, E. Jacobi, James Madsen, Thomas K. Gaisser, G. B. Yodh, D. Z. Besson, Thomas Meures, E. A. Strahler, Kara Hoffman, J. Feintzeig, Dariusz Gora, A. Tamburro, Dirk Ryckbosch, M. Merck, J. P. Rodrigues, T. Stezelberger, Stijn Buitink, S. Westerhoff, A. H. Cruz Silva, Elisa Resconi, Thorsten Glusenkamp, O. Schulz, Anatoli Fedynitch, Teresa Montaruli, M. V. D'Agostino, J. Berdermann, M. Richman, K. Beattie, M. Vehring, D. F. Cowen, Nathan Whitehorn, A. Silvestri, Samvel Ter-Antonyan, J. Kiryluk, J. Lünemann, C. Ha, P. B. Price, Karen S. Caballero-Mora, Wolfgang Rhode, L. Schulte, R. J. Lauer, Albrecht Karle, A. Schultes, R. Morse, Christian Spiering, R. C. Bay, H. S. Matis, A. Van Overloop, L. Brayeur, C. De Clercq, T. Degner, T. O. B. Schmidt, Karen Andeen, P. Berghaus, Juan Carlos Diaz-Velez, S. Böser, A. Schönwald, F. Clevermann, T. R. Wood, J. J. Beatty, S. Euler, B. Hoffmann, H. Taavola, David A. Williams, Markus Ackermann, S. W. Barwick, M. Scheel, E. Blaufuss, J. C. Davis, A. Homeier, Kurt Woschnagg, Y. Sestayo, J. Posselt, Matthias Wolf, Rasha Abbasi, S. Tilav, K. Han, D. Altmann, H. G. Sander, K. Hoshina, Paul Evenson, Jon Dumm, T. Waldenmaier, M. Kowalski, R. Nahnhauer, Christopher Wiebusch, M. Danninger, J. L. Bazo Alba, A. Stößl, Simona Toscano, K. Meagher, Damian Pieloth, W. Huelsnitz, Chun Xu, Reina H. Maruyama, A. M. Brown, E. Middell, Elisa Bernardini, J. Daughhetee, Francis Halzen, M. Ribordy, R. W. Ellsworth, J. P. Yanez, S. M. Movit, M. Stamatikos, Glenn Spiczak, P. O. Hulth, J. Eisch, P. Zarzhitsky, T. Feusels, F. Rothmaier, G. de Vries-Uiterweerd, Jenni Adams, Dmitry Chirkin, J. E. Jacobsen, Aongus O'Murchadha, Marcos Santander, O. Fadiran, G. W. Sullivan, K. Hultqvist, P. Heimann, L. Gerhardt, L. Köpke, B. Semburg, Alexander Kappes, Darren Grant, D. Berley, G. C. Hill, J.-H. Köhne, H. Wissing, D. J. Boersma, S. Hickford, Michael J. Baker, Xinhua Bai, S. Bechet, Sarah Nowicki, R. G. Stokstad, L. Gladstone, R. Wischnewski, Dirk Heinen, A. Goldschmidt, J. Auffenberg, D. Heereman, D. Seckel, S. Miarecki, Naoko Kurahashi, A. R. Fazely, Tyce DeYoung, Daniel Bindig, P. Redl, D. Bertrand, P. A. Toale, M. Olivo, K. Helbing, N. van Eijndhoven, U. Naumann, Michael S. Bell, Kirill Filimonov, S. Klepser, J. K. Becker, G. Kroll, M. Wallraff, M. Voge, M. Gurtner, M. Krasberg, M. Schunck, J. C. Gallagher, S. Yoshida, M. Casier, Allan Hallgren, J. van Santen, S. Hussain, Sandro Kopper, D. J. Koskinen, Kael Hanson, J. Kunnen, Axel Groß, Timo Karg, J. W. Nam, S. Schöneberg, D. R. Nygren, Paolo Desiati, S. Grullon, M. J. Carson, M. J. Larson, Fabian Kislat, A. Franckowiak, J. Blumenthal, K. Mase, Olga Botner, V. Baum, Henrik J. Johansson, S. Panknin, K. Schatto, G. Kohnen, R. Ström, Hermann Kolanoski, D. Tosi, H. Landsman, Gerald Przybylski, M. Zoll, A. Olivas, R. Wasserman, Aguilar Sanchez, Juan, Montaruli, Teresa, and Elementary Particle Physics
Subjects: Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, ddc:500.2, Astrophysics, 01 natural sciences, IceCube, IceCube Neutrino Observatory, 0103 physical sciences, Cosmic rays, 010303 astronomy & astrophysics, Zenith, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Energy spectrum, IceTop, Spectral index, COSMIC cancer database, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Air shower, KASCADE, ddc:540, Neutrino, Astrophysics - High Energy Astrophysical Phenomena
Abstract: Astroparticle physics 44, 40 - 58 (2013). doi:10.1016/j.astropartphys.2013.01.016, We report on a measurement of the cosmic ray energy spectrum with the IceTop air shower array, the surface component of the IceCube Neutrino Observatory at the South Pole. The data used in this analysis were taken between June and October, 2007, with 26 surface stations operational at that time, corresponding to about one third of the final array. The fiducial area used in this analysis was 0.122 km2. The analysis investigated the energy spectrum from 1 to 100 PeV measured for three different zenith angle ranges between 0° and 46°. Because of the isotropy of cosmic rays in this energy range the spectra from all zenith angle intervals have to agree. The cosmic-ray energy spectrum was determined under different assumptions on the primary mass composition. Good agreement of spectra in the three zenith angle ranges was found for the assumption of pure proton and a simple two-component model. For zenith angles θ < 30°, where the mass dependence is smallest, the knee in the cosmic ray energy spectrum was observed at about 4 PeV, with a spectral index above the knee of about −3.1. Moreover, an indication of a flattening of the spectrum above 22 PeV was observed., Published by Elsevier Science, Amsterdam [u.a.]
Published: 2012
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130. Background studies for acoustic neutrino detection at the South Pole

Author: T. Denger, H. Taavola, E. Blaufuss, J. C. Davis, P. O. Hulth, J. Eisch, K. Han, G. de Vries-Uiterweerd, J. J. Beatty, B. Semburg, A. Piegsa, M. Krasberg, C. Pérez de los Heros, H. Wissing, K. Hoshina, L. Koepke, Glenn Spiczak, J. Posselt, Daniel Bindig, S. M. Movit, J. Auffenberg, U. Naumann, S. Yoshida, J. M. Clem, P. Zarzhitsk, A. Van Overloop, Ch. Weaver, Reina H. Maruyama, Jon Dumm, M. Prikockis, T. Waldenmaier, Joanna Kiryluk, K. Beattie, O. Schulz, O. Depaepe, P. B. Price, Chad Finley, T. Griesel, M. Ono, S. Stoyanov, K.-H. Becker, J. L. Bazo Alba, Peter Mészáros, M. Kowalski, J. Luenemann, K. Rawlins, T. Feusels, J. E. Jacobsen, Marcos Santander, L. Gerhardt, Larissa Paul, G. Stephens, S. Westerhoff, D. Bose, T. O. B. Schmidt, M. Danninger, K. Wiebe, T. Fischer-Wasels, James Madsen, A. Schukraft, S. Grullon, M. J. Carson, Segev BenZvi, D. Z. Besson, Spencer Klein, T. Kowarik, A. Marotta, Thomas Meures, E. Middell, Elisa Bernardini, R. C. Bay, J. M. Joseph, M. Ribordy, H. S. Matis, E. A. Strahler, Kurt Woschnagg, N. van Eijndhoven, Dirk Ryckbosch, Juan Carlos Diaz-Velez, Paul Evenson, Teresa Montaruli, P. Roth, Kara Hoffman, Y. Sestayo, M. J. Larson, Albrecht Karle, D. Tosi, J. P. Rodrigues, Anatoli Fedynitch, Stijn Buitink, T. Stezelberger, P. Niessen, A. Tamburro, D. Turcan, M. Dierckxsens, Jenni Adams, Christian Spiering, Nathan Whitehorn, S. Cohen, Fabian Kislat, Xinhua Bai, S. Boeser, Justin Vandenbroucke, I. Taboada, Francis Halzen, C. Ha, Dmitry Chirkin, Alexander Kappes, R. Morse, K. Mase, J. L. Kelley, O. Fadiran, M. Merck, G. Kroll, Markus Ahlers, K. Meagher, B. D. Fox, Wolfgang Rhode, M. L. Benabderrahmane, J. Dreyer, T. Abu-Zayyad, A. Franckowiak, S. Seunarine, Y. Abdou, Carsten Rott, J. Miller, J. P. Huelss, Ph. Herquet, A. Slipak, S. Tilav, A. Stoessl, M. Bissok, S. Hickford, A. Schoenwald, R. G. Stokstad, D. Rutledge, S. Bechet, R. Porrata, Pratik Majumdar, Gerald Przybylski, J. van Santen, R. Wischnewski, P. Redl, D. Heinen, Xianwu Xu, Martin Wolf, C. Colnard, C. Bohm, K. Laihem, M. Stamatikos, M. Olivo, T. Straszheim, Paraic A. Kenny, Juanan Aguilar, D. Bertrand, Samvel Ter-Antonyan, L. Demiroers, J. K. Becker, Takao Kuwabara, Kael Hanson, J. Petrovic, H. G. Sander, B. Christy, S. Hussain, D. J. Koskinen, M. Vehring, D. F. Cowen, Chun Xu, F. Rothmaier, Karl-Heinz Kampert, Kirill Filimonov, A. Ishihara, Matthias Geisler, K. Hultqvist, A. Schultes, P. Berghaus, Timo Karg, B. Ruzybayev, M. M. Foerster, Rasha Abbasi, M. Wallraff, J. Blumenthal, A. Goldschmidt, S. Euler, M. Voge, J. C. Gallagher, M. Gurtner, Darren Grant, S. Panknin, Damian Pieloth, D. Hubert, M. Stüer, A. M. Brown, Paolo Desiati, Allan Hallgren, J. A. Goodman, Sandro Kopper, N. Milke, Olga Botner, George Japaridze, O. Engdegård, Aongus O'Murchadha, Elisa Resconi, J. Berdermann, Henrik J. Johansson, Tim Ruhe, M. Walter, A. Rizzo, T. Gluesenkamp, Simona Toscano, D. Berley, G. C. Hill, R. W. Ellsworth, K. Schatto, G. Kohnen, Michael J. Baker, J. W. Nam, L. Gladstone, D. Seckel, S. H. Seo, Subir Sarkar, D. R. Nygren, A. R. Fazely, Tyce DeYoung, P. A. Toale, S. Odrowski, D. J. Boersma, S.J. Lafebre, A. Homeier, Christopher Wiebusch, J. Daughhetee, J. H. Koehne, F. Clevermann, J. P. Yanez, G. W. Sullivan, James E. Braun, Q. Swillens, R. J. Lauer, C. De Clercq, David A. Williams, S. W. Barwick, Todor Stanev, C. Wendt, F. Descamps, A. Tepe, R. Franke, C. Walck, Thomas K. Gaisser, G. B. Yodh, A. Gross, M. Labare, A. Silvestri, Karen Andeen, R. Nahnhauer, M. Schunck, K. Kuehn, W. Huelsnitz, K. Helbing, R. Ehrlich, A. Olivas, T. Krings, Hermann Kolanoski, H. Landsman, M. V. D'Agostino, and Elementary Particle Physics
Subjects: Signals, TELESCOPE, Absolute noise level, Astrophysics::High Energy Astrophysical Phenomena, Flux, FOS: Physical sciences, Astrophysics, 7. Clean energy, 01 natural sciences, IceCube Neutrino Observatory, law.invention, IceCube, Telescope, Acoustic neutrino detection, Neutrino flux limit, law, SIGNALS, 0103 physical sciences, WATER, Detection theory, 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, Acoustic neutrino detector, 010308 nuclear & particles physics, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Water, Astronomy and Astrophysics, Geodesy, Noise, Neutrino detector, Physics and Astronomy, 13. Climate action, ddc:540, Neutrino, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The detection of acoustic signals from ultra-high energy neutrino interactions is a promising method to measure the tiny flux of cosmogenic neutrinos expected on Earth. The energy threshold for this process depends strongly on the absolute noise level in the target material. The South Pole Acoustic Test Setup (SPATS), deployed in the upper part of four boreholes of the IceCube Neutrino Observatory, has monitored the noise in Antarctic ice at the geographic South Pole for more than two years down to 500 m depth. The noise is very stable and Gaussian distributed. Lacking an in-situ calibration up to now, laboratory measurements have been used to estimate the absolute noise level in the 10 to 50 kHz frequency range to be smaller than 20 mPa. Using a threshold trigger, sensors of the South Pole Acoustic Test Setup registered acoustic pulse-like events in the IceCube detector volume and its vicinity. Acoustic signals from refreezing IceCube holes and from anthropogenic sources have been used to localize acoustic events. Monte Carlo simulations of sound propagating from the established sources to the SPATS sensors have allowed to check corresponding model expectations. An upper limit on the neutrino flux at energies $E_��> 10^{11}$ GeV is derived from acoustic data taken over eight months., 17 pages, 14 figures
Published: 2012

131. Observation of D1 (2420)+ and D2∗(2460)+

Author: F. Wappler, S. Henderson, C. D. Jones, Y. Kwon, D. S. Crowcroft, J. K. Nelson, B. Geiser, D. Z. Besson, R. Mountain, M. Goldberg, Jungil Lee, W. S. Brower, D. Cinabro, K. K. Gan, Anders Ryd, M. Athanas, G. Crawford, D. H. Miller, S. Patton, P. Pomianowski, P. Zadorozhny, F. Muheim, M. Lohner, T. Liu, J. Masui, B. Spaan, Vivek Jain, Ilya Kravchenko, H. Kagan, S. Salman, C. Bebek, Kenneth Bloom, P. Gaidarev, Michael Wood, K. Lingel, X. Fu, J. W. Hinson, N. Katayama, J. Urheim, D. G. Cassel, Ian Shipsey, D. He, A. P. Freyberger, G. Eigen, R. Davis, Ha Lam, B. C. Barish, Daniel Johnson, S. Nakanishi, E. H. Thorndike, B. Ong, A. H. Mahmood, T. E. Browder, Z. Ling, George D Gollin, R. J. Morrison, S. Playfer, P. S. Drell, Mats A Selen, D. Coppage, D. L. Kreinick, D. J. Dumas, Alain Bellerive, T. Miao, S. E. Csorna, A. J. Sadoff, N. Copty, Jorge Luis Rodriguez, M. Saulnier, S. Kotov, J. P. Alexander, Sheldon Stone, Paul Avery, Karl Berkelman, K. Kinoshita, B. I. Eisenstein, K. Cho, M. L. Kelly, P. Skubic, S. Roberts, P. M. Patel, B. Nemati, J. Fast, F. Butler, N. B. Mistry, L. Gibbons, M. Battle, J. J. Thaler, J. Gronberg, S. W. Gray, N. Horwitz, B. Gittelman, M. Ogg, D. B. MacFarlane, A. J. Weinstein, D. Riley, G. C. Moneti, Christopher G. White, M. S. Alam, M. Chadha, M. Modesitt, Maurice Garcia-Sciveres, R. Ammar, R. Malchow, I. J. Kim, J. Mevissen, H. N. Nelson, C. M. Daubenmier, Ryszard Stroynowski, J. Bartelt, J. Kandaswamy, T. K. Nelson, H. Severini, S. Chan, J. Ernst, G. Zhu, X. Xing, M. Sung, M. Momayezi, H. Tajima, M. Sapper, C. O'Grady, E. I. Shibata, John Yelton, M. Lambrecht, P. Rankin, E. R.F. Hyatt, M. Lattery, J. G. Smith, Alice Bean, D. Peterson, M. Gao, C. R. Sun, W. T. Ford, H. P. Paar, R. Fulton, N. Kwak, R. Kutschke, M. Bishai, D. Fujino, J. J. O'Neill, Yuichi Kubota, M. M. Zoeller, R. D. Kass, R. Balest, Chunjie Wang, K. Honscheid, W. R. Ross, Richard Wilson, D. Gibaut, S. Menary, Dave Britton, R. L. McIlwain, E. Gerndt, I. Volobouev, Shengfeng Yang, Yurii V. Mukhin, K. W. Edwards, V. Shelkov, S. Schrenk, S. Sanghera, Z. Egyed, T. Skwarnicki, P. C. Kim, E. Nordberg, Jeffrey Richman, D. F. Cowen, D. Sperka, G. S. Ludwig, Ruifang Wang, N. Hancock, T. Bergfeld, C. Qiao, Pu Wang, Marina Artuso, H. Yamamoto, M.A. Palmer, J. S. Miller, R. Ehrlich, S. L. Jones, J. Dominick, V. Savinov, Yoram Rozen, F. Würthwein, Philip Baringer, D. Payne, H. A. Cho, D. L. Hartill, R. Poling, C. R. Ng, D. M. Coffman, Michael S. Witherell, B. K. Heltsley, G. Wei, G. Masek, and Juliet Ritchie Patterson
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Electron–positron annihilation, Isospin, State (functional analysis)
Abstract: Using the CLEO II detector at CESR, we have observed two charmed states, where the higher mass state decays to D0π+ and to D ∗0 π + , while the lower mass state decays to D ∗0 π + , but not to D0π+. The masses and widths were measured to be 2425±2±2 MeV/c2 and 26−7−4+8+4 MeV/c2 for the lower mass state, and 2463±3±3 MeV/c2 and 27−8−5+11+5 MeV/c2 for the higher mass state. Properties of these states, including their decay angular distributions and spin-parity assignments have been studied. The results of this analysis support the identification of these states as the charged L = 1 D 1 (2420) + and D 2 ∗ (2460) + , respectively. The isospin mass splittings between these states and their neutral partners have also been measured. This is the first full reconstruction of any decay mode of the D1 (2420)+ and the first observation of the decay of D 2 ∗ (2460) + to D ∗0 π + .
Published: 1994

132. Measurement of the cross section for γγ→pp¯

Author: J. Whitmore, K. Lingel, C. Bebek, Jungil Lee, M. Sivertz, T. E. Browder, Robert Wilson, David Sperka, H. Tajima, R. Ehrlich, J. S. Miller, S. L. Jones, H. Worden, M. Thulasidas, H. A. Cho, M. Kelly, D. G. Cassel, J. Dominick, Sheldon Stone, J. Mevissen, V. Shelkov, K. Sparks, S. J. Patton, Paul Avery, D. Cinabro, R. Kennett, Yoram Rozen, J. Kandaswamy, N. Horwitz, J. Masui, M. Chadha, Philip Baringer, S. Ball, V. Savinov, Cong Wang, Shengfeng Yang, J. A. Ernst, B. Gittelman, C. R. Ng, Shawn W. Henderson, Michael S. Witherell, J. Gronberg, H. P. Paar, R. Fulton, D. Peterson, X. Fu, Daniela Bortoletto, M. S. Alam, D. F. Cowen, M.K. Sung, I. J. Kim, D. H. Miller, J. Urheim, N. Katayama, Marina Artuso, R. Poling, D. S. Akerib, E. H. Thorndike, N. Hancock, Y. Skovpen, R. Davis, John Yelton, John E. Bartelt, G.R. Kalbfleisch, Robert K. Kutschke, G. Eigen, D. Z. Besson, P. Zadorozhny, R. L. Malchow, Christopher G. White, D. Coppage, Karl Berkelman, B. Ong, M. Daoudi, J. P. Alexander, M. Garcia-Sciveres, F. Muheim, D. L. Hartill, C. R. Sun, W. T. Ford, S. Sanghera, Pu Wang, J. L. Rodriguez, M. Sapper, S. Roberts, R. D. Kass, Anders Ryd, M. Athanas, R. Stephens, E. Nordberg, S. E. Csorna, Darin Acosta, Daniel Schmidt, G. S. Ludwig, D. R. Johnson, R. Balest, Frank Würthwein, Vipul Jain, K. Cho, G. Vasseur, J. Fast, B. Geiser, N. B. Mistry, F. Butler, B. Nemati, S. Schrenk, K. Kinoshita, R. S. Galik, N. Copty, Ryszard Stroynowski, W. R. Ross, D. Fujino, K. Honscheid, D. He, N. Kwak, G. Masek, Juliet Ritchie Patterson, P. Skubic, S. Nakanishi, T. Liu, M. Modesitt, E. I. Shibata, C. O'Grady, P. Rankin, Glen D. Crawford, Alice Bean, M. Procario, R. L. McIlwain, H. Kagan, M. Battle, H. N. Nelson, A. P. Freyberger, F. Shen, Horst Severini, A. J.R. Weinstein, S. Playfer, Ha Lam, J. D. Richman, M. Ogg, D. Riley, M. Lohner, J. J. O'Neill, R. J. Morrison, G. Zhu, Hubert Kroha, Mats A Selen, T. Miao, A. J. Sadoff, D. M. Coffman, M. Lattery, B. C. Barish, B. K. Heltsley, J. Snow, Paul Sheldon, Yuichi Kubota, H. Yamamoto, R. Ammar, P. L. Wang, T. K. Nelson, R. Wang, P. S. Drell, S. Chan, M. Saulnier, F. Morrow, Z. Egyed, Igor Volobouev, M. M. Zoeller, P. Wilson, K. K. Gan, T. Skwarnicki, P. C. Kim, S. Menary, M. Goldberg, G. C. Moneti, S.F. Schaffner, Yurii V. Mukhin, S. W. Gray, D. Perticone, M. Lambrecht, D. N. Brown, I. P. J. Shipsey, S. Salman, Janice Nelson, C. D. Jones, Michael Wood, J. G. Smith, C. M. Daubenmier, and D. L. Kreinick
Subjects: Nuclear physics, Physics, Cross section (physics), Particle physics
Published: 1994

133. Measurement of the ratios of form factors in the decay Ds+ → φe+ve

Author: D. M. Coffman, B. K. Heltsley, B. Geiser, K. Cho, N. B. Mistry, D. He, R. J. Morrison, Mats A Selen, A. J. Sadoff, T. E. Browder, M. Lohner, V. Savinov, Yoram Rozen, F. Würthwein, J. Masui, D. Cinabro, D. Fujino, S. Sanghera, R. Davis, George D Gollin, J. J. O'Neill, Alice Bean, B. Spaan, D. Gibaut, T. Skwarnicki, N. Hancock, J. K. Nelson, M. Momayezi, Yurii V. Mukhin, R. Kutschke, S. Patton, Philip Baringer, Xiangjun Xing, P. C. Kim, D. S. Crowcroft, Sheldon Stone, Paul Avery, P. Skubic, M. Sapper, R. Mountain, M. Sung, Anders Ryd, P. S. Drell, J. Mevissen, Vivek Jain, M. Athanas, Pu Wang, J. Kandaswamy, Jorge Luis Rodriguez, Shawn W. Henderson, N. Copty, Y. Kwon, T. K. Nelson, Daniel Johnson, M. Saulnier, G. Masek, Juliet Ritchie Patterson, G. C. Moneti, C. Qiao, R. Ehrlich, G. Crawford, Shengfeng Yang, M. L. Kelly, Z. Ling, Marina Artuso, D. Z. Besson, M. M. Zoeller, J. Urheim, D. H. Miller, S. W. Gray, Jon J Thaler, E. I. Shibata, I. P.J. Shipsey, D. Peterson, M. Modesitt, C. R. Sun, W. T. Ford, R. D. Kass, D. B. MacFarlane, S. L. Jones, R. Balest, P. Gaidarev, B. Nemati, Maurice Garcia-Sciveres, G. Zhu, K. K. Gan, S. Kotov, Y. Skovpen, A. J. Weinstein, X. Fu, D. L. Kreinick, B. Gittelman, M. S. Alam, D. J. Dumas, J. Dominick, F. Butler, D. F. Cowen, S. Nakanishi, E. H. Thorndike, R. Malchow, H. N. Nelson, T. Liu, H. Hagan, J. Ernst, I. J. Kim, J. G. Smith, W. R. Ross, F. R. Wappler, E. Gerndt, K. W. Edwards, Karl Berkelman, D. G. Cassel, Jungil Lee, John Yelton, M. Lambrecht, D. Coppage, J. S. Miller, C. Bebek, L. Gibbons, S. Roberts, C. D. Jones, E. R.F. Hyatt, Kenneth Bloom, M. Lattery, T. Miao, M. Battle, I. Volobouev, W. S. Brower, A. H. Mahmood, N. Katayama, J. Gronberg, P. Pomianowski, D. Payne, J. P. Alexander, H. A. Cho, Richard Wilson, S. E. Csorna, A. P. Freyberger, N. Horwitz, Z. Egyed, M. Chadha, N. Kwak, R. Ammar, K. Honscheid, M. Bishai, Ilya Kravchenko, S. Salman, G. Eigen, Michael Wood, M. Gao, H. P. Paar, R. Fulton, H. Tajima, M. Ogg, H. Severini, B. I. Eisenstein, M.A. Palmer, M. Goldberg, S. Chan, D. L. Hartill, D. Sperka, R. Poling, S. Menary, Dave Britton, C. O'Grady, C. M. Daubenmier, C. R. Ng, Ryszard Stroynowski, R. L. McIlwain, E. Nordberg, Jeffrey Richman, V. Shelkov, S. Schrenk, K. Kinoshita, Michael S. Witherell, G. S. Ludwig, P. Zadorozhny, F. Muheim, K. Lingel, P. Rankin, Ruifang Wang, Ha Lam, S. Playfer, T. Bergfeld, D. Riley, Chunjie Wang, B. C. Barish, G. Wei, H. Yamamoto, J. Bartelt, B. Ong, Yuichi Kubota, J. Fast, Christopher G. White, Alain Bellerive, and P. M. Patel
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Detector, Form factor (quantum field theory), Atomic physics, Pseudovector, Sample (graphics)
Abstract: The dynamics of the decay D s + → φe + v e are studied using a sample of 474 events recorded by the CLEO II detector. A three dimensional fit to the decay angles and q 2 is performed to extract the ratios of form factors R 2 = A 2 (0)/ A 1 (0) and R v = V (0 )/ A 1 (0), where A 1 (0) and A 2 (0) are the two axial vector form factors and V (0) is the vector form factor evaluated at q 2 =0. By assuming the single pole parameterization for the form factors, we obtain: R 2 =1.4±0.5±0.3 and R v =0.9±0.6±0.3.
Published: 1994

134. Measurement of two-photon production of theχc2

Author: T. Liu, M. Modesitt, A. P. Freyberger, H. N. Nelson, J. Snow, S. Roberts, N. Katayama, M. Garcia-Sciveres, Vipul Jain, D. S. Akerib, J. G. Smith, K. Lingel, M. Sivertz, G. Eigen, N. Kwak, Ryszard Stroynowski, D. Fujino, D. L. Kreinick, C. Bebek, H. Worden, D. G. Cassel, T. K. Nelson, Robert Wilson, K. Sparks, S. J. Patton, D. Perticone, P. Rankin, T. E. Browder, R. L. Malchow, D. Z. Besson, R. Poling, Igor Volobouev, M. M. Zoeller, J. Urheim, Marina Artuso, J. Dominick, M. Lambrecht, D. N. Brown, Christopher G. White, R. L. McIlwain, P. Zadorozhny, M. Daoudi, J. L. Rodriguez, J. Gronberg, I. P. J. Shipsey, V. Savinov, H. P. Paar, R. Fulton, B. Nemati, S. Menary, C. R. Sun, F. Shen, W. T. Ford, D. H. Miller, R. D. Kass, Anders Ryd, M. Athanas, S. Salman, Janice Nelson, C. D. Jones, Michael Wood, David Sperka, Frank Würthwein, K. Cho, P. S. Drell, M. Battle, R. Balest, A. J.R. Weinstein, N. B. Mistry, M. Daubenmeir, Shengfeng Yang, E. Nordberg, Ha Lam, J. D. Richman, M. S. Alam, W. R. Ross, S. Schrenk, G. S. Ludwig, M. Saulnier, F. Morrow, P. Wilson, D. F. Cowen, H. Kagan, R. Davis, D. He, M. Lattery, E. I. Shibata, M. Kelly, J. Mevissen, John E. Bartelt, G.R. Kalbfleisch, B. C. Barish, H. Yamamoto, E. H. Thorndike, D. M. Coffman, F. Muheim, D. R. Johnson, D. Cinabro, R. Kennett, B. K. Heltsley, J. Masui, J. Kandaswamy, J. A. Ernst, D. Peterson, D. Coppage, J. P. Alexander, B. Gittelman, T. Miao, R. Stephens, S. E. Csorna, D. Riley, S. Playfer, R. Wang, F. Butler, K. Kinoshita, I. J. Kim, N. Hancock, Y. Skovpen, Sheldon Stone, Paul Avery, R. Ammar, K. K. Gan, R. S. Galik, T. Skwarnicki, S. W. Gray, M. Sapper, S. Chan, R. J. Morrison, B. Geiser, Paul Sheldon, P. C. Kim, Yuichi Kubota, S. Sanghera, Pu Wang, M. Lohner, Darin Acosta, J. Whitmore, Jungil Lee, J. J. O'Neill, Mats A Selen, A. J. Sadoff, M. Goldberg, G. C. Moneti, N. Horwitz, M. Chadha, S.F. Schaffner, V. Shelkov, Cong Wang, John Yelton, M. Ogg, G. Zhu, Robert K. Kutschke, D. L. Hartill, Daniel Schmidt, J. Fast, Karl Berkelman, N. Copty, Glen D. Crawford, Z. Egyed, Shawn W. Henderson, X. Fu, B. Ong, G. Vasseur, Yurii V. Mukhin, P. Skubic, S. Nakanishi, G. Masek, Juliet Ritchie Patterson, M. Procario, K. Honscheid, P. L. Wang, Horst Severini, Hubert Kroha, H. A. Cho, Daniela Bortoletto, C. R. Ng, Michael S. Witherell, M.K. Sung, Yoram Rozen, Philip Baringer, S. Ball, H. Tajima, R. Ehrlich, S. L. Jones, J. S. Miller, M. Thulasidas, Alice Bean, and C. O'Grady
Subjects: Physics, Statistics::Theory, Particle physics, Particle decay, Muon, Statistics::Applications, Meson, Hadron, Perturbative QCD, High Energy Physics::Experiment, Production (computer science), Elementary particle, Quarkonium
Abstract: The CLEO II detector is used to search for the production of ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}2}$ states in two-photon interactions. We use the signature ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}2}$\ensuremath{\rightarrow}\ensuremath{\gamma}J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}${\mathit{l}}^{+}$${\mathit{l}}^{\mathrm{\ensuremath{-}}}$ with l=e,\ensuremath{\mu}. Using 1.49 ${\mathrm{fb}}^{\mathrm{\ensuremath{-}}1}$ of data taken with beam energies near 5.29 GeV, the two-photon width of the ${\mathrm{\ensuremath{\chi}}}_{\mathit{c}2}$ is determined to be \ensuremath{\Gamma}(${\mathrm{\ensuremath{\chi}}}_{\mathit{c}2}$\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma})=1.08\ifmmode\pm\else\textpm\fi{}0.30(stat)\ifmmode\pm\else\textpm\fi{}0.26(syst) keV, in agreement with predictions from perturbative QCD.
Published: 1994

135. Observation of InclusiveBDecays to the Charmed BaryonsΣc++andΣc0

Author: D. G. Cassel, Ron Poling, Daniel Schmidt, Kenneth Bloom, P.M. Patel, J. Mevissen, J. Kandaswamy, N. Katayama, D. S. Akerib, T. K. Nelson, G. Eigen, D. Peterson, G. Crawford, B. I. Eisenstein, D. B. MacFarlane, A. J. Weinstein, H. N. Nelson, D. L. Kreinick, P. Baringer, M. L. Kelly, S. W. Gray, Ha Lam, H. Kagan, S. Roberts, J. Urheim, H. P. Paar, R. Fulton, N. Kwak, J. K. Nelson, T. Liu, C. Bebek, Richard Wilson, D. He, E. Nordberg, Jeffrey Richman, G. S. Ludwig, M. Battle, W. R. Ross, P. S. Drell, G. Vasseur, C. Qiao, Jorge Luis Rodriguez, R. Mountain, B. Nemati, F. Morrow, A. P. Freyberger, George R. Kalbfleisch, M. Procario, M. Saulnier, T. E. Browder, R. Davis, I. Volobouev, H. Yamamoto, Shengfeng Yang, B. C. Barish, S. Menary, Dave Britton, R. L. McIlwain, R. Ammar, J. Masui, V. Shelkov, S. Schrenk, D. F. Cowen, Maurice Garcia-Sciveres, George D Gollin, S. Salman, Karl Berkelman, R. J. Morrison, Mats A Selen, A. J. Sadoff, Michael Wood, R. Stephens, Vivek Jain, S. E. Csorna, Alice Bean, Y. Kwon, G. C. Moneti, M. S. Alam, R. Kennett, B. Gittelman, J. Ernst, H. Severini, S. Chan, P. Skubic, J. Snow, J. S. Miller, D. Riley, Anders Ryd, M. Athanas, D. Z. Besson, D. M. Coffman, M. Modesitt, M. Daoudi, K. Cho, S. Sanghera, B. K. Heltsley, M. Thulasidas, I. J. Kim, E. R.F. Hyatt, M. Lattery, R. Kutschke, C. M. Daubenmier, N. B. Mistry, Ryszard Stroynowski, N. Hancock, M.A. Palmer, F. Butler, J. Bartelt, I. P.J. Shipsey, C. D. Jones, K. K. Gan, Sheldon Stone, P. Zadorozhny, F. Muheim, K. Kinoshita, C. O'Grady, Paul Avery, E. I. Shibata, J. G. Smith, P. Rankin, Y. Skovpen, R. Malchow, John Yelton, M. Lambrecht, J. J. Thaler, M. Goldberg, R. Ehrlich, D. N. Brown, Marina Artuso, Chunjie Wang, D. Cinabro, S. Playfer, Yuichi Kubota, S. L. Jones, J. Gronberg, N. Horwitz, M. Chadha, J. Dominick, D. Perticone, V. Savinov, S. Patton, M. Sapper, C. R. Sun, Yoram Rozen, F. Würthwein, W. T. Ford, R. D. Kass, G. Zhu, R. Balest, S. Ball, D. Acosta, M. Sung, H. Tajima, Daniel Johnson, T. Skwarnicki, D. Fujino, P. C. Kim, J. J. O'Neill, S. Henderson, D. H. Miller, X. Fu, B. Geiser, Pu Wang, Jungil Lee, Yurii V. Mukhin, M. M. Zoeller, S. Nakanishi, E. H. Thorndike, D. Coppage, J. P. Alexander, M. Lohner, T. Miao, M. Ogg, R. S. Galik, K. W. Edwards, Z. Egyed, D. Sperka, Ruifang Wang, T. Bergfeld, P. L. Wang, B. Ong, J. Fast, Christopher G. White, D. Payne, H. A. Cho, D. L. Hartill, C. R. Ng, Michael S. Witherell, N. Copty, K. Honscheid, G. Wei, G. Masek, Juliet Ritchie Patterson, and K. Lingel
Subjects: Physics, Charmed baryons, Stereochemistry, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, General Physics and Astronomy, Cornell Electron Storage Ring, Atomic physics
Abstract: Using data collected in the region of the [Upsilon](4[ital S]) resonance with the CLEO II detector operating at the Cornell Electron Storage Ring, we report on evidence for the production of [Sigma][sub [ital c]][sup ++] and [Sigma][sub [ital e]][sup 0] baryons in [ital B] decays, with [Sigma][sub [ital c]][r arrow][Lambda][sub [ital c]][sup +][pi]. This observation is based on 77[plus minus]19[Sigma][sub [ital c]][sup ++] and 76[plus minus]21[Sigma][sub [ital c]][sup 0] candidates from [ital B] decays. We find the product branching fractions [ital scrB]([ital [bar B]][r arrow][Sigma][sub [ital c]][ital X])[ital scrB]([Lambda][sub [ital c]][sup +][r arrow][ital pK][sup [minus]][pi][sup +]) for [Sigma][sub [ital c]]=[Sigma][sub [ital c]][sup ++], [Sigma][sub [ital c]][sup 0], and [Sigma][sub [ital c]][sup +] to be (2.1[plus minus]0.8[plus minus]0.7)[times]10[sup [minus]4], (2.3[plus minus]0.8[plus minus]0.7)[times]10[sup [minus]4], and less than 4.8[times]10[sup [minus]4] at 90% confidence level, respectively. A study of the [Sigma][sub [ital c]][sup ++] and [Sigma][sub [ital c]][sup 0] momentum spectra indicates that [ital B] decays to two-body final states with [Sigma][sub [ital c]] are suppressed.
Published: 1994

136. Two-photon production of charged pion and kaon pairs

Author: H. P. Paar, R. Fulton, G. Wei, Shawn W. Henderson, N. Horwitz, X. Fu, M. Chadha, D. L. Hartill, Z. Egyed, James E. Fast, E. Nordberg, P. Zadorozhny, R. Stephens, W. R. Ross, G. S. Ludwig, K. Honscheid, M. S. Alam, S. E. Csorna, N. Copty, Shengfeng Yang, F. Butler, J. G. Smith, D. Perticone, K. Lingel, M. Lambrecht, C. M. Daubenmier, D. N. Brown, M. Sivertz, S. Salman, Janice Nelson, C. D. Jones, Michael Wood, T. Bergfeld, T. Liu, M. Modesitt, E.R.F. Hyatt, K. W. Edwards, Glen D. Crawford, K. Kinoshita, Ian Shipsey, D. F. Cowen, J. J. Thaler, N. Hancock, A. P. Freyberger, M.A. Palmer, D. Z. Besson, Y. I. Skovpen, B. Ong, D. Riley, M. Daoudi, Yoram Rozen, M. Garcia-Sciveres, Robert K. Kutschke, V.G. Shelkov, R. L. Malchow, Christopher G. White, D. J. Payne, Vipul Jain, Karl Berkelman, N. Kwak, C. R. Sun, Cong Wang, S. W. Gray, W. T. Ford, Philip Baringer, S. Ball, R. D. Kass, H. Tajima, J. L. Rodriguez, Frank Würthwein, K. Cho, M. Sapper, P. Skubic, G. Masek, Juliet Ritchie Patterson, N. B. Mistry, J. Snow, Ryszard Stroynowski, D. Fujino, P. Rankin, S. Schrenk, Dave Britton, R. L. McIlwain, R. Ehrlich, S. L. Jones, Y. J. Kwon, Yuichi Kubota, S. Sanghera, Pu Wang, Darin Acosta, M. Procario, Jungil Lee, Anders Ryd, M. Athanas, S. Nakanishi, Harris Kagan, John Yelton, S. Playfer, C. P. O'Grady, R. J. Morrison, Mats A Selen, T. Skwarnicki, P. C. Kim, M. Goldberg, G. C. Moneti, E. H. Thorndike, A. J. Sadoff, H. Yamamoto, D. Coppage, T. Miao, D. R. Johnson, J. S. Miller, J. P. Alexander, D. H. Miller, T. K. Nelson, Richard Wilson, R. Wang, Horst Severini, M. Thulasidas, Alice Bean, D. B. MacFarlane, P. L. Wang, D. He, Barry C. Barish, E. I. Shibata, M. Ogg, G. Zhu, H. N. Nelson, G. Vasseur, Igor Volobouev, M. M. Zoeller, R. Davis, Yurii V. Mukhin, George D Gollin, R. S. Galik, Kenneth Bloom, K. K. Gan, N. Katayama, D. S. Akerib, F. Muheim, David Sperka, G. Eigen, D. M. Coffman, P. M. Patel, B. K. Heltsley, R. Mountain, C. Qiao, D. L. Kreinick, C. Bebek, J. Urheim, D. G. Cassel, T. E. Browder, J. Dominick, B. Nemati, V. Savinov, H. A. Cho, M. Battle, A. J.R. Weinstein, C. R. Ng, R. Ammar, Michael S. Witherell, M.K. Sung, S. Chan, P. Gaiderev, S. J. Patton, R. Balest, Marina Artuso, Sheldon Stone, Paul Avery, John E. Bartelt, M. Kelly, S. Menary, J. Mevissen, G.R. Kalbfleisch, J. Kandaswamy, Ha Lam, J. D. Richman, M. Lattery, J. Masui, J. A. Ernst, S. Roberts, D. Peterson, P. S. Drell, R. Poling, M. Saulnier, D. Cinabro, R. Kennett, B. I. Eisenstein, B. Gittelman, I. J. Kim, B. Geiser, M. Lohner, J. J. O'Neill, and J. Gronberg
Subjects: Physics, Quantum chromodynamics, Particle physics, Meson, FOS: Physical sciences, Elementary particle, High Energy Physics - Experiment, Massless particle, Nuclear physics, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Pair production, Pion, High Energy Physics::Experiment, Invariant mass, Cornell Electron Storage Ring
Abstract: A measurement of the cross section for the combined two-photon production of charged pion and kaon pairs is performed using 1.2~$\rm fb^{-1}$ of data collected by the CLEO~II detector at the Cornell Electron Storage Ring. The cross section is measured at invariant masses of the two-photon system between 1.5 and 5.0 GeV/$c^2$, and at scattering angles more than $53^\circ$ away from the $\gamma\gamma$ collision axis in the $\gamma\gamma$ center-of-mass frame. The large background of leptonic events is suppressed by utilizing the CsI calorimeter in conjunction with the muon chamber system. The reported cross section is compared with leading order QCD models as well as previous experiments. In particular, although the functional dependence of the measured cross section disagrees with leading order QCD at small values of the two-photon invariant mass, the data show a transition to perturbative behavior at an invariant mass of approximately 2.5 GeV/$c^2$. hardcopies with figures can be obtained by writing to to: Pam Morehouse preprint secretary Newman Lab Cornell University Ithaca, NY 14853 or by sending mail to: preprints@lns62.lns.cornell.edu, Comment: 15 pages (in REVTEX format)
Published: 1994

137. Measurement of Cabibbo-Suppressed Decays of theτLepton

Author: F. Butler, R. Malchow, D. M. Coffman, John Yelton, M. Lambrecht, P. Gaiderev, B. K. Heltsley, G. C. Moneti, C. M. Daubenmier, Ryszard Stroynowski, Barry C. Barish, C. D. Jones, N. Kwak, E. I. Shibata, M. Sapper, S. Menary, Dave Britton, R. L. McIlwain, P. S. Drell, Jorge Luis Rodriguez, V. Shelkov, S. Schrenk, P. Rankin, G. D. Gollin, M. Saulnier, D. Payne, H. A. Cho, D. Fujino, P. M. Patel, J. S. Miller, M. Goldberg, J. J. O'Neill, B. Nemati, M. Thulasidas, D. Riley, R. Kennett, R. Ammar, Chunjie Wang, D. He, Pu Wang, D. H. Miller, Y. Kwon, T. E. Browder, G. Crawford, H. Kagan, D. Cinabro, N. Copty, W. R. Ross, B. Gittelman, H. Yamamoto, Maurice Garcia-Sciveres, P. L. Wang, J. Bartelt, D. Z. Besson, Jungil Lee, H. Severini, S. Chan, R. Davis, M. Daoudi, B. Ong, R. Ehrlich, I. P.J. Shipsey, Ha Lam, I. Volobouev, S. Patton, C. O'Grady, K. K. Gan, M. L. Kelly, J. Fast, D. G. Cassel, Christopher G. White, Y. Skovpen, S. L. Jones, P. Skubic, X. Fu, G. Vasseur, Yuichi Kubota, S. W. Gray, R. J. Morrison, I. J. Kim, H. Tajima, Marina Artuso, J. Dominick, D. Acosta, K. W. Edwards, Mats A Selen, Z. Egyed, Daniel Johnson, M. Procario, D. Perticone, V. Savinov, D. Sperka, Ruifang Wang, Shengfeng Yang, A. J. Sadoff, Richard Wilson, Yoram Rozen, F. Würthwein, T. Bergfeld, J. Masui, Philip Baringer, D. L. Kreinick, S. Salman, S. Ball, K. Honscheid, D. F. Cowen, B. I. Eisenstein, M. M. Zoeller, Michael Wood, J. Urheim, B. Geiser, C. R. Sun, W. T. Ford, Vivek Jain, M. Modesitt, J. K. Nelson, T. Liu, R. D. Kass, R. Balest, T. Miao, R. Mountain, D. L. Hartill, J. G. Smith, Jon J Thaler, K. Cho, M.A. Palmer, C. Bebek, Sheldon Stone, Paul Avery, R. Poling, N. B. Mistry, S. Roberts, M. Battle, C. R. Ng, M. Lohner, A. P. Freyberger, J. Mevissen, J. Kandaswamy, George R. Kalbfleisch, Michael S. Witherell, D. Peterson, J. Snow, G. Zhu, G. Masek, Juliet Ritchie Patterson, T. Skwarnicki, P. C. Kim, S. Henderson, T. K. Nelson, S. Sanghera, N. Hancock, G. Wei, K. Lingel, M. Sivertz, Alice Bean, H. P. Paar, R. Fulton, R. Kutschke, M. S. Alam, J. Ernst, E. R.F. Hyatt, M. Lattery, P. Zadorozhny, F. Muheim, D. N. Brown, S. Playfer, C. Qiao, E. Nordberg, Jeffrey Richman, Kenneth Bloom, S. Nakanishi, E. H. Thorndike, G. S. Ludwig, N. Katayama, D. B. MacFarlane, D. S. Akerib, A. J. Weinstein, D. Coppage, J. P. Alexander, G. Eigen, H. N. Nelson, M. Ogg, R. S. Galik, Y. Muheim, J. Gronberg, N. Horwitz, M. Chadha, M. Sung, R. Stephens, S. E. Csorna, Karl Berkelman, K. Kinoshita, Anders Ryd, and M. Athanas
Subjects: Physics, Semileptonic decay, High Energy Physics - Phenomenology, Particle decay, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, Elementary particle, Cornell Electron Storage Ring, High Energy Physics - Experiment
Abstract: Branching ratios for the dominant Cabibbo-suppressed decays of the $\tau$ lepton have been measured by CLEO~II in $e^+ e^-$ annihilation at CESR ($\sqrt{s} \sim 10.6$~GeV) using kaons with momenta below $0.7\ \rm GeV/c$. The inclusive branching ratio into one charged kaon is $(1.60 \pm 0.12 \pm 0.19)\%$. For the exclusive decays, $B(\tau \to K^-) = (0.66 \pm 0.07 \pm 0.09)\%$, $B(\tau \to K^- \pi^0) = (0.51 \pm 0.10 \pm 0.07)\%$, and, based on three events, $B(\tau \to K^- \pi^0 \pi^0) < 0.3\%$ at the 90\% confidence level. These represent significant improvements over previous results. $B(\tau\to K^- \pi^0)$ is measured for the first time with exclusive $\pi^0$ reconstruction., Comment: 11 pages uuencoded compressed postscript (process with uudecode then gunzip). hardcopies with figures can be obtained by sending mail to: preprints@lns62.lns.cornell.edu
Published: 1994

138. Study of the five-charged-pion decay of the τ lepton

Author: J. J. Thaler, Anders Ryd, M. Athanas, N. Hancock, D. R. Johnson, J. Urheim, T. K. Nelson, B. Nemati, M. Battle, A. J.R. Weinstein, R. Ammar, G. Vasseur, Igor Volobouev, M. M. Zoeller, E. H. Thorndike, R. Stephens, M. Sapper, S. E. Csorna, D. Cinabro, R. Kennett, S. Chan, Shawn W. Henderson, K. Lingel, D. Coppage, F. Butler, X. Fu, J. P. Alexander, B. Gittelman, S. Schrenk, S. Roberts, T. Liu, M. Modesitt, H. A. Cho, K. Kinoshita, N. Kwak, John E. Bartelt, Cong Wang, M. Garcia-Sciveres, G.R. Kalbfleisch, W. R. Ross, Y. J. Kwon, K. Honscheid, D. Riley, H. Yamamoto, S. Sanghera, Pu Wang, I. J. Kim, N. Horwitz, M. Chadha, Darin Acosta, A. P. Freyberger, S. Menary, E.R.F. Hyatt, K. W. Edwards, R. J. Wilson, Vipul Jain, J. Masui, R. Wang, James E. Fast, D. G. Cassel, Dave Britton, R. S. Galik, John Yelton, D. Z. Besson, C. R. Ng, R. L. McIlwain, Yurii V. Mukhin, P. Skubic, D. H. Miller, D. L. Kreinick, C. Bebek, D. L. Hartill, T. Miao, Ryszard Stroynowski, D. Fujino, M. Daoudi, T. E. Browder, R. L. Malchow, Michael S. Witherell, M.K. Sung, F. Muheim, M.A. Palmer, P. Gaidarev, R. Poling, Robert K. Kutschke, David Sperka, J. Dominick, Christopher G. White, V.G. Shelkov, D. S. Crowcroft, Alice Bean, Yuichi Kubota, V. Savinov, Karl Berkelman, N. Copty, D. He, Barry C. Barish, C. R. Sun, P. Rankin, E. I. Shibata, W. T. Ford, R. D. Kass, D. B. MacFarlane, Ha Lam, J. D. Richman, R. Balest, P. S. Drell, Y. I. Skovpen, C. Qiao, B. Spaan, B. I. Eisenstein, Glen D. Crawford, D. M. Coffman, R. Davis, H. Kagan, G. Masek, Juliet Ritchie Patterson, George D Gollin, H. N. Nelson, M. Lattery, S. Kotov, B. Ong, B. K. Heltsley, M. Saulnier, J. L. Rodriguez, Alain Bellerive, P. M. Patel, L. K. Gibbons, S. Playfer, C. P. O'Grady, Jungil Lee, Frank Würthwein, K. Cho, M. Procario, Shengfeng Yang, J. Gronberg, R. Mountain, B. Geiser, H. P. Paar, R. Fulton, N. B. Mistry, Horst Severini, M. S. Alam, S. Nakanishi, D. F. Cowen, R. J. Morrison, Mats A Selen, M. Kelly, J. Mevissen, J. Kandaswamy, Sheldon Stone, M. Lohner, G. Wei, J. J. O'Neill, A. J. Sadoff, E. Nordberg, Paul Avery, J. A. Ernst, G. S. Ludwig, Z. Egyed, D. Peterson, T. Bergfeld, Kenneth Bloom, Yoram Rozen, N. Katayama, G. Eigen, D. Gibaut, Philip Baringer, S. J. Patton, S. Ball, Xiangjun Xing, H. Tajima, Marina Artuso, P. Zadorozhny, R. Ehrlich, S. L. Jones, K. K. Gan, T. Skwarnicki, P. C. Kim, M. Goldberg, G. C. Moneti, J. S. Miller, M. Ogg, M. Thulasidas, G. Zhu, D. J. Payne, M. Momayezi, S. W. Gray, D. Perticone, M. Lambrecht, I. P. J. Shipsey, Ilya Kravchenko, S. Salman, Janice Nelson, C. D. Jones, Michael Wood, J. G. Smith, and C. M. Daubenmier
Subjects: Semileptonic decay, Physics, Crystallography, Particle physics, Particle decay, Pion, Meson, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, General Physics and Astronomy, Cornell Electron Storage Ring, Lepton
Abstract: The branching fractions for the five-charged-particle decays of the [tau] lepton have been measured in [ital e][sup +][ital e][sup [minus]] annihilations using the CLEO II detector at the Cornell Electron Storage Ring. Assuming all charged particles to be pions, the results are [ital B](3[pi][sup [minus]]2[pi][sup +][ge]0 neutrals [nu][sub [tau]])=(0.097[plus minus]0.005[plus minus]0.011)%, [ital B](3[pi][sup [minus]]2[pi][sup +][nu][sub [tau]])=(0.077[plus minus]0.005 [plus minus]0.009)%, [ital B](3[pi][sup [minus]]2[pi][sup +][pi][sup 0][nu][sub [tau]])=(0.019[plus minus]0.004[plus minus]0.004)%, and [ital B](3[pi][sup [minus]]2[pi][sup +]2[pi][sup 0][nu][sub [tau]])[lt]0.011% at the 90% C.L. [ital B](3[pi][sup [minus]]2[pi][sup [minus]][pi][sup 0][nu][sub [tau]]) is measured for the first time by exclusive [pi][sup 0] reconstruction. The results are compared with the predictions from the partially conserved-axial-current and conserved-vector-current hypotheses assuming isospin invariance.
Published: 1994

139. Precision measurement of theDs*+-Ds+mass difference

Author: Jungil Lee, D. L. Hartill, S. Roberts, K. Honscheid, N. Copty, E. H. Thorndike, E.R.F. Hyatt, Glen D. Crawford, D. Coppage, J. P. Alexander, K. W. Edwards, D. H. Miller, K. Lingel, T. Liu, M. Modesitt, T. K. Nelson, A. P. Freyberger, D. R. Johnson, J. Snow, Robert Wilson, R. Ammar, Cong Wang, S. Chan, Anders Ryd, M. Athanas, P. S. Drell, G. Vasseur, M. Garcia-Sciveres, S. J. Patton, John Yelton, Igor Volobouev, M. M. Zoeller, G. Wei, D. Z. Besson, M. Daoudi, M. Saulnier, H. Kagan, P. Skubic, Vipul Jain, J. Urheim, Yoram Rozen, S. Schrenk, M. Lambrecht, S. Playfer, C. P. O'Grady, M. S. Alam, Z. Egyed, D. Cinabro, R. Kennett, Ha Lam, Marina Artuso, Philip Baringer, R. J. Morrison, R. Stephens, S. E. Csorna, P. Zadorozhny, D. N. Brown, David Sperka, S. Ball, S. Sanghera, Pu Wang, Darin Acosta, D. He, Shawn W. Henderson, J. D. Richman, B. Gittelman, X. Fu, E. I. Shibata, Ryszard Stroynowski, D. Fujino, Robert K. Kutschke, Mats A Selen, A. J. Sadoff, R. Mountain, H. Tajima, I. P. J. Shipsey, F. Butler, B. Nemati, H. A. Cho, I. J. Kim, S. Salman, K. Kinoshita, Janice Nelson, C. D. Jones, T. Bergfeld, Michael Wood, Y. J. Kwon, Karl Berkelman, S. Menary, Y. I. Skovpen, P. Rankin, R. Ehrlich, H. Yamamoto, John E. Bartelt, G.R. Kalbfleisch, M. Lattery, J. L. Rodriguez, B. Ong, B. C. Barish, C. Qiao, D. G. Cassel, N. Kwak, J. Masui, S. L. Jones, R. Davis, Frank Würthwein, George D Gollin, D. J. Payne, M. Battle, R. Wang, S. Nakanishi, K. Cho, D. Peritcone, J. Gronberg, A. J.R. Weinstein, P. Gaiderev, N. Horwitz, M. Chadha, T. Miao, N. B. Mistry, J. S. Miller, R. Poling, H. P. Paar, R. Fulton, B. Geiser, James E. Fast, M. Thulasidas, Dave Britton, R. L. McIlwain, P. M. Patel, F. Muheim, P. L. Wang, J. J. Thaler, N. Hancock, R. L. Malchow, Christopher G. White, D. Riley, Shengfeng Yang, W. R. Ross, E. Nordberg, B. I. Eisenstein, G. S. Ludwig, M. Lohner, S. W. Gray, D. M. Coffman, D. F. Cowen, D. B. MacFarlane, J. J. O'Neill, M. Sapper, C. R. Sun, W. T. Ford, M.A. Palmer, H. N. Nelson, Yuichi Kubota, V.G. Shelkov, R. D. Kass, Yurii V. Mukhin, R. Balest, M. Kelly, J. Mevissen, J. G. Smith, J. Kandaswamy, C. M. Daubenmier, B. K. Heltsley, J. A. Ernst, D. Peterson, C. R. Ng, Sheldon Stone, Paul Avery, Michael S. Witherell, M.K. Sung, G. Masek, Juliet Ritchie Patterson, M. Procario, Horst Severini, D. L. Kreinick, C. Bebek, T. E. Browder, J. Dominick, V. Savinov, K. K. Gan, T. Skwarnicki, P. C. Kim, M. Goldberg, G. C. Moneti, M. Ogg, G. Zhu, Kenneth Bloom, N. Katayama, D. S. Akerib, G. Eigen, and Alice Bean
Subjects: Nuclear physics, Physics, Systematic error, Particle physics, Meson, Electron–positron annihilation, Radiative decay, Measure (mathematics)
Abstract: We have measured the vector-pseudoscalar mass splitting M(D s * + )-M(D s + )=144.22±0.47±0.37 MeV significantly more precisely than the previous world average. We minimize the systematic errors by also measuring the vector-pseudoscalar mass difference M(D* 0 )-M(D 0 ) using the radiative decay D* 0 →D 0 γ, obtaining [M(D s * + )-M(D s + )]-[M(D* 0 )-M(D 0 )] =2.09±0.47±0.37 MeV. This is then combined with our previous high-precision measurement of M(D* 0 )-M(D 0 ), which used the decay D* 0 →D 0 π 0 . We also measure the mass difference M(D s + )-M(D + )=99.5±0.6±0.3 MeV, using the φπ + decay modes of the D s + and D + mesons.
Published: 1994

140. Exclusive hadronicBdecays to charm and charmonium final states

Author: Ian Shipsey, M. Modesitt, A. P. Freyberger, Robert K. Kutschke, H. A. Cho, S. Playfer, C. P. O'Grady, D. B. MacFarlane, Karl Berkelman, J. Snow, H. N. Nelson, R. J. Morrison, Mats A Selen, P. Skubic, A. J. Sadoff, C. R. Ng, N. Horwitz, M. Chadha, D. G. Cassel, Shawn W. Henderson, X. Fu, M.K. Sung, Shengfeng Yang, Harris Kagan, P. S. Drell, J. Gronberg, H. P. Paar, R. Fulton, James E. Fast, D. L. Kreinick, C. Bebek, D. F. Cowen, R. Poling, D. Z. Besson, D. L. Hartill, M. Saulnier, D. J. Payne, Daniel Schmidt, M. Daoudi, P. M. Patel, D. R. Johnson, P. L. Wang, S. J. Patton, W. R. Ross, J. L. Rodriguez, E. Nordberg, N. Hancock, J. Dominick, M. Ogg, G. Zhu, Kenneth Bloom, D. Cinabro, R. Kennett, Younghoon Kwon, G. S. Ludwig, M. Garcia-Sciveres, D. H. Miller, B. I. Eisenstein, V. Savinov, N. Copty, Vipul Jain, J. Urheim, Anders Ryd, K. Lingel, M. Athanas, B. Gittelman, G. Wei, K. Cho, R. Davis, Richard Wilson, Jon J Thaler, N. Katayama, S. Menary, D. S. Akerib, George D Gollin, M. Sapper, Ryszard Stroynowski, D. Fujino, Yurii V. Mukhin, Ha Lam, J. D. Richman, Glen D. Crawford, N. B. Mistry, G. Masek, I. J. Kim, G. Eigen, Z. Egyed, Marina Artuso, P. Rankin, S. Schrenk, Juliet Ritchie Patterson, K. K. Gan, T. Skwarnicki, P. Zadorozhny, Sheldon Stone, Paul Avery, D. M. Coffman, M. S. Alam, F. Ẅrthwein, P. C. Kim, M. Procario, B. K. Heltsley, Cong Wang, B. Nemati, M. Goldberg, T. Bergfeld, K. Honscheid, R. Stephens, S. E. Csorna, John Yelton, S. W. Gray, Horst Severini, G. C. Moneti, Y. I. Skovpen, M. Lattery, F. Butler, E.R.F. Hyatt, B. Ong, D. Riley, K. W. Edwards, R. Mountain, K. Kinoshita, F. Muheim, D. Perticone, T. Miao, N. Kwak, John E. Bartelt, G.R. Kalbfleisch, M. Battle, S. Nakanishi, M. S. Witherell, B. Geiser, A. J.R. Weinstein, M. Lambrecht, D. N. Brown, S. Roberts, Dave Britton, R. L. McIlwain, F. Morrow, Alice Bean, R. Ammar, R. L. Malchow, S. Chan, M. Kelly, S. Salman, Janice Nelson, C. D. Jones, Michael Wood, J. Mevissen, Christopher G. White, Yuichi Kubota, J. Kandaswamy, J. A. Ernst, C. R. Sun, W. T. Ford, R. D. Kass, J. G. Smith, D. Peterson, C. M. Daubenmier, R. Balest, J. Masui, T. K. Nelson, G. Vasseur, Igor Volobouev, M. M. Zoeller, David Sperka, C. Qiao, E. H. Thorndike, D. Coppage, J. P. Alexander, M. Lohner, J. J. O'Neill, D. He, Barry C. Barish, E. I. Shibata, S. Sanghera, Pu Wang, Darin Acosta, Jungil Lee, M.A. Palmer, V.G. Shelkov, Thomas E. Browder, H. Yamamoto, R. Wang, Yoram Rozen, Philip Baringer, S. Ball, J. S. Miller, M. Thulasidas, H. Tajima, R. Ehrlich, S. L. Jones, and T. Liu
Subjects: Physics, Particle physics, Meson, Branching fraction, Electron–positron annihilation, Hadron, FOS: Physical sciences, Elementary particle, Quarkonium, High Energy Physics - Experiment, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), Particle decay, High Energy Physics - Phenomenology (hep-ph), TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, High Energy Physics::Experiment, B meson
Abstract: We have fully reconstructed decays of both B0 and B- Mesons into final states containing either D, D*, D**, Psi, Psi', or Chi_{c1} mesons. This allows us to obtain new results on many physics topics including branching ratios, tests of the factorization hypothesis, color suppression, resonant substructure, and the B- - B0 mass difference., Comment: 37 pages. uuencoded compressed postscript (process with uudecode, then gunzip). 31 postscript figures available on request. CLNS-94-1270
Published: 1994

141. Measurement of the branching fractionscrB(τ−→h−→π0ντ)

Author: Robert K. Kutschke, H. Kagan, D. Perticone, D. Riley, M. Lambrecht, David Sperka, Karl Berkelman, Yuichi Kubota, S. Playfer, I. P. J. Shipsey, M. Kelly, S. Roberts, R. Ammar, H. A. Cho, Alain Bellerive, J. Mevissen, P. M. Patel, S. Chan, Ilya Kravchenko, D. H. Miller, S. Salman, Janice Nelson, C. D. Jones, Michael Wood, D. Payne, J. Kandaswamy, K. K. Gan, T. Skwarnicki, P. Gaidarev, R. J. Morrison, C. R. Ng, J. J. Thaler, Mats A Selen, N. Hancock, Y. Skovpen, A. J. Sadoff, Michael S. Witherell, M.K. Sung, P. S. Drell, J. A. Ernst, P. C. Kim, C. Qiao, L. K. Gibbons, N. Horwitz, M. Chadha, John E. Bartelt, D. R. Johnson, N. Kwak, J. Urheim, M. Saulnier, G.R. Kalbfleisch, D. Peterson, G. Masek, Shengfeng Yang, V. Shelkov, Juliet Ritchie Patterson, M. Goldberg, G. C. Moneti, S. Menary, M. Momayezi, T. Liu, M. Sapper, M. Modesitt, B. Nemati, D. Cinabro, R. Kennett, Ha Lam, E. H. Thorndike, J. D. Richman, S. W. Gray, S. Schrenk, B. Gittelman, A. P. Freyberger, M. Battle, Cong Wang, M. Procario, Horst Severini, Anders Ryd, M. Athanas, A. J.R. Weinstein, I. J. Kim, Dave Britton, R. L. McIlwain, D. Coppage, W. R. Ross, John Yelton, M. Lattery, F. Muheim, B. C. Barish, Alice Bean, D. F. Cowen, M. Garcia-Sciveres, Vipul Jain, Sheldon Stone, Y. J. Kwon, J. P. Alexander, J. Masui, T. K. Nelson, Yurii V. Mukhin, D. G. Cassel, D. L. Hartill, Paul Avery, J. G. Smith, Ryszard Stroynowski, D. Fujino, S. Kotov, B. Geiser, C. M. Daubenmier, R. Stephens, S. E. Csorna, Igor Volobouev, M. M. Zoeller, G. Wei, T. Miao, D. S. Crowcroft, J. Fast, P. Rankin, R. L. Malchow, F. Butler, Christopher G. White, R. S. Galik, M. Lohner, N. Copty, M. S. Alam, J. J. O'Neill, R. Poling, K. Kinoshita, Z. Egyed, J. L. Rodriguez, C. R. Sun, W. T. Ford, Frank Würthwein, K. Cho, R. D. Kass, R. Balest, Glen D. Crawford, N. B. Mistry, T. Bergfeld, K. Honscheid, B. I. Eisenstein, B. Ong, E.R.F. Hyatt, R. Davis, B. Spaan, Kenneth Bloom, K. W. Edwards, George D Gollin, M. Ogg, G. Zhu, N. Katayama, S. Nakanishi, G. Eigen, R. Mountain, Robert Wilson, S. J. Patton, Marina Artuso, P. Zadorozhny, H. Yamamoto, R. Wang, M.A. Palmer, Jungil Lee, S. Sanghera, Pu Wang, Darin Acosta, D. He, E. I. Shibata, G. Vasseur, P. Skubic, K. Lingel, M. Sivertz, Yoram Rozen, Shawn W. Henderson, X. Fu, Philip Baringer, S. Ball, Xiangjun Xing, J. S. Miller, C. O'Grady, D. B. MacFarlane, M. Thulasidas, D. Z. Besson, M. Daoudi, H. Tajima, H. N. Nelson, R. Ehrlich, S. L. Jones, J. Gronberg, H. P. Paar, R. Fulton, D. M. Coffman, B. K. Heltsley, E. Nordberg, G. S. Ludwig, D. L. Kreinick, C. Bebek, T. E. Browder, J. Dominick, and V. Savinov
Subjects: Semileptonic decay, Combinatorics, Physics, Particle model, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, TheoryofComputation_GENERAL, General Physics and Astronomy, Combined result, Cornell Electron Storage Ring, MathematicsofComputing_DISCRETEMATHEMATICS
Abstract: Using data from the CLEO II detector at the Cornell Electron Storage Ring, we measure [ital scrB]([tau][sup [minus]][r arrow][ital h][sup [minus]][pi][sup 0][nu][sub [tau]]) where [ital h][sup [minus]] refers to either [pi][sup [minus]] or [ital K][sup [minus]]. We use three different methods to measure this branching fraction. The combined result is [ital scrB]([tau][sup [minus]][r arrow][ital h][sup [minus]][pi][sup 0][nu][sub [tau]])=0.2587[plus minus]0.0012[plus minus]0.0042, in good agreement with standard model predictions.
Published: 1994

142. First measurement ofΓ(Ds+→μ+ν)Γ(Ds+→φπ+)

Author: D. Acosta, M. Athanas, G. Masek, H. Paar, A. Bean, J. Gronberg, R. Kutschke, S. Menary, R. J. Morrison, S. Nakanishi, H. N. Nelson, T. K. Nelson, J. D. Richman, A. Ryd, H. Tajima, D. Schmidt, D. Sperka, M. S. Witherell, M. Procario, S. Yang, R. Balest, K. Cho, M. Daoudi, W. T. Ford, D. R. Johnson, K. Lingel, M. Lohner, P. Rankin, J. G. Smith, J. P. Alexander, C. Bebek, K. Berkelman, D. Besson, T. E. Browder, D. G. Cassel, H. A. Cho, D. M. Coffman, P. S. Drell, R. Ehrlich, R. S. Galik, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, C. D. Jones, S. L. Jones, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, C. R. Ng, E. Nordberg, M. Ogg, J. R. Patterson, D. Peterson, D. Riley, S. Salman, M. Sapper, H. Worden, F. Würthwein, P. Avery, A. Freyberger, J. Rodriguez, R. Stephens, J. Yelton, D. Cinabro, S. Henderson, K. Kinoshita, T. Liu, M. Saulnier, F. Shen, R. Wilson, H. Yamamoto, B. Ong, M. Selen, A. J. Sadoff, R. Ammar, S. Ball, P. Baringer, D. Coppage, N. Copty, R. Davis, N. Hancock, M. Kelly, N. Kwak, H. Lam, Y. Kubota, M. Lattery, J. K. Nelson, S. Patton, D. Perticone, R. Poling, V. Savinov, S. Schrenk, R. Wang, M. S. Alam, I. J. Kim, B. Nemati, J. J. O'Neill, H. Severini, C. R. Sun, M. M. Zoeller, G. Crawford, C. M. Daubenmier, R. Fulton, D. Fujino, K. K. Gan, K. Honscheid, H. Kagan, R. Kass, J. Lee, R. Malchow, F. Morrow, Y. Skovpen, M. Sung, C. White, J. Whitmore, P. Wilson, F. Butler, X. Fu, G. Kalbfleisch, M. Lambrecht, W. R. Ross, P. Skubic, J. Snow, P. L. Wang, M. Wood, D. Bortoletto, D. N. Brown, J. Fast, R. L. McIlwain, T. Miao, D. H. Miller, M. Modesitt, S. F. Schaffner, E. I. Shibata, I. P. J. Shipsey, P. N. Wang, M. Battle, J. Ernst, H. Kroha, S. Roberts, K. Sparks, E. H. Thorndike, C. H. Wang, J. Dominick, S. Sanghera, V. Shelkov, T. Skwarnicki, R. Stroynowski, I. Volobouev, P. Zadorozhny, M. Artuso, D. He, M. Goldberg, N. Horwitz, R. Kennett, G. C. Moneti, F. Muheim, Y. Mukhin, S. Playfer, Y. Rozen, S. Stone, M. Thulasidas, G. Vasseur, G. Zhu, J. Bartelt, S. E. Csorna, Z. Egyed, V. Jain, P. Sheldon, D. S. Akerib, B. Barish, M. Chadha, S. Chan, D. F. Cowen, G. Eigen, J. S. Miller, C. O'Grady, J. Urheim, and A. J. Weinstein
Subjects: Physics, Combinatorics, Particle physics, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Pi
Abstract: We present a measurement of [Gamma]([ital D][sub [ital s]][sup +][r arrow][mu][sup +][nu])/[Gamma]([ital D][sub [ital s]][sup +][r arrow][phi][pi][sup +])= 0.245[plus minus]0.052[plus minus]0.074. Using this ratio and [ital scrB]([ital D][sub [ital s]][sup +][r arrow][phi][pi][sup +])=(3.7[plus minus]0.9)% we extract [ital f][sub [ital D][ital s]]=344[plus minus]37[plus minus]52[plus minus]42 MeV, where the last error is due to the uncertainty in the [ital D][sub [ital s]][sup +][r arrow][phi][pi][sup +] absolute branching ratio. This result is larger than most theoretical predictions.
Published: 1994

143. Measurement of the branching fraction forD+→K−π+π+

Author: W. R. Ross, D. Cinabro, R. Kennett, H. Yamamoto, B. Gittelman, J. Gronberg, I. J. Kim, M. S. Alam, H. P. Paar, R. Fulton, S. J. Patton, R. Wang, R. L. Malchow, Christopher G. White, J. Masui, Ian Shipsey, J. L. Rodriguez, N. Kwak, R. Davis, Marina Artuso, P. Zadorozhny, K. Cho, N. B. Mistry, Y. I. Skovpen, J. J. Thaler, P. S. Drell, C. R. Sun, W. T. Ford, George D Gollin, N. Hancock, Dave Britton, R. L. McIlwain, D. He, E. I. Shibata, M. Saulnier, E. Nordberg, R. D. Kass, R. Balest, Shengfeng Yang, M. Kelly, G. Masek, N. Horwitz, J. Mevissen, D. M. Coffman, Juliet Ritchie Patterson, B. Ong, J. Kandaswamy, B. K. Heltsley, G. S. Ludwig, K. Lingel, P. Gaiderev, D. F. Cowen, Jungil Lee, M. Procario, M. Sapper, M. Chadha, B. Geiser, J. A. Ernst, D. L. Kreinick, C. Bebek, D. Z. Besson, P. Skubic, T. E. Browder, E. H. Thorndike, Ha Lam, D. Peterson, Horst Severini, J. D. Richman, S. Schrenk, M. Garcia-Sciveres, P. M. Patel, M. Daoudi, James E. Fast, M. Lohner, J. J. O'Neill, R. J. Wilson, Vipul Jain, John E. Bartelt, T. K. Nelson, J. Dominick, V. Savinov, G.R. Kalbfleisch, H. A. Cho, Y. J. Kwon, Shawn W. Henderson, M. Lattery, B. C. Barish, D. H. Miller, Ryszard Stroynowski, D. Fujino, D. Coppage, X. Fu, J. P. Alexander, C. R. Ng, F. Wrthwein, M.A. Palmer, P. Rankin, V.G. Shelkov, Michael S. Witherell, T. Miao, M.K. Sung, D. R. Johnson, S. Sanghera, Pu Wang, S. Nakanishi, R. Mountain, S. Roberts, Robert K. Kutschke, Sheldon Stone, D. B. MacFarlane, Darin Acosta, G. Vasseur, Tomasz Skwarnicki, Paul Avery, D. Riley, Igor Volobouev, M. M. Zoeller, T. Liu, M. Modesitt, G. Wei, H. N. Nelson, Karl Berkelman, K. Honscheid, David Sperka, J. Urheim, Yuichi Kubota, E.R.F. Hyatt, Alice Bean, D. G. Cassel, A. P. Freyberger, K. W. Edwards, C. Qiao, Anders Ryd, M. Athanas, Z. Egyed, R. Poling, B. Nemati, R. Stephens, S. E. Csorna, J. Snow, F. Butler, Kenneth Bloom, B. I. Eisenstein, M. Battle, T. Bergfeld, K. Kinoshita, N. Katayama, D. S. Akerib, A. J.R. Weinstein, G. Eigen, P. L. Wang, H. Kagan, S. Playfer, C. P. O'Grady, R. Ammar, R. J. Morrison, S. Chan, Mats A Selen, A. J. Sadoff, Cong Wang, John Yelton, S. Menary, D. L. Hartill, N. Copty, Glen D. Crawford, F. Muheim, M. Ogg, G. Zhu, K. K. Gan, P. C. Kim, M. Goldberg, G. C. Moneti, J. S. Miller, M. Thulasidas, H. Tajima, R. Ehrlich, S. L. Jones, Yoram Rozen, Philip Baringer, S. Ball, Yurii V. Mukhin, D. Perticone, M. Lambrecht, D. N. Brown, S. Salman, Janice Nelson, C. D. Jones, Michael Wood, D. J. Payne, S. W. Gray, J. G. Smith, and C. M. Daubenmier
Subjects: Physics, Stereochemistry, Branching fraction, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, General Physics and Astronomy, Atomic physics, Cornell Electron Storage Ring
Abstract: Using the CLEO II detector at the Cornell Electron Storage Ring we have measured the ratio of branching fractions, B([ital D][sup +][r arrow][ital K][sup [minus]][pi][sup +][pi][sup +])/([ital D][sup 0][r arrow][ital K][sup [minus]][pi][sup +])=2.35[plus minus]0.16[plus minus]0.16. Our recent measurement of [ital scrB]([ital D][sup 0][r arrow][ital K][sup [minus]][pi][sup +]) then gives [ital scrB]([ital D][sup +][r arrow][ital K][sup [minus]][pi][sup +][pi][sup +])=(9.3[plus minus]0.6[plus minus]0.8)%.
Published: 1994

144. Observation ofΛc+ decays to Λπ+π0, Σ0π+, Σ0π+π0, and Σ0π−π+π+

Author: P. Zadorozhny, F. Muheim, B. Nemati, F. Morrow, D. Besson, T. K. Nelson, P. S. Drell, S. Nakanishi, H. Kagan, E. H. Thorndike, D. N. Brown, S. Playfer, Jorge Luis Rodriguez, D. Riley, M. Saulnier, D. Coppage, S. F. Schaffner, J. Bartelt, J. P. Alexander, Anders Ryd, M. Athanas, K. Sparks, R. J. Morrison, Mats A Selen, H. A. Cho, A. J. Sadoff, D. He, Yuichi Kubota, D. Fujino, J. J. O'Neill, D. L. Hartill, M. Sapper, T. E. Browder, W. R. Ross, Daniel Schmidt, Richard Wilson, R. Kennett, R. Poling, C. R. Ng, Yurii V. Mukhin, M. S. Alam, B. Gittelman, I. Volobouev, Michael S. Witherell, G. C. Moneti, Marina Artuso, P. Wilson, A. J. Weinstein, J. Ernst, I. J. Kim, R. Stephens, G. Crawford, M. Lattery, J. Urheim, H. N. Nelson, S. E. Csorna, E. I. Shibata, P. Skubic, D. M. Coffman, B. K. Heltsley, N. Kwak, K. Kinoshita, Daniela Bortoletto, N. Copty, I. P.J. Shipsey, C. R. Sun, F. Butler, W. T. Ford, K. Cho, R. Malchow, D. Cinabro, R. D. Kass, R. Balest, N. B. Mistry, J. Whitmore, Jungil Lee, S. Menary, B. Geiser, John Yelton, J. Gronberg, S. Patton, N. Horwitz, R. L. McIlwain, M. Chadha, D. H. Miller, F. Shen, R. Davis, H. P. Paar, R. Fulton, Maurice Garcia-Sciveres, R. Ammar, G. Masek, V. Shelkov, S. Schrenk, M. Lohner, D. Acosta, Juliet Ritchie Patterson, J. Mevissen, Daniel Johnson, X. Fu, T. Liu, T. Skwarnicki, M. Daoudi, J. Kandaswamy, Sheldon Stone, S. Sanghera, H. Severini, S. Chan, C. Bebek, Paul Avery, D. L. Kreinick, M. L. Kelly, K. K. Gan, Y. Skovpen, P. C. Kim, S. Henderson, N. Hancock, D. Peterson, A. P. Freyberger, C. O'Grady, George R. Kalbfleisch, S. W. Gray, K. Honscheid, H. Tajima, Hubert Kroha, S. Roberts, J. Snow, Pu Wang, M. Modesitt, M. Battle, M. Sung, E. Nordberg, Jeffrey Richman, G. S. Ludwig, M. M. Zoeller, Karl Berkelman, J. G. Smith, D. G. Cassel, M. Ogg, G. Zhu, T. Miao, K. Lingel, M. Procario, S. Salman, Michael Wood, H. Worden, M. Lambrecht, A. Bean, J. K. Nelson, S. Yang, B. Ong, J. Fast, Christopher G. White, Z. Egyed, D. Sperka, Ruifang Wang, D. F. Cowen, P. L. Wang, C. M. Daubenmier, Ryszard Stroynowski, P. Rankin, Chunjie Wang, D. Perticone, V. Savinov, Yoram Rozen, F. Würthwein, Philip Baringer, S. Ball, J. S. Miller, M. Thulasidas, R. Ehrlich, N. Katayama, S. L. Jones, D. S. Akerib, J. Dominick, G. Eigen, R. Kutschke, H. Yamamoto, Ha Lam, G. Vasseur, B. C. Barish, J. Masui, Vivek Jain, C. D. Jones, and M. Goldberg
Subjects: Nuclear physics, Baryon, Physics, Nuclear and High Energy Physics, Argus, Particle physics, Branching fraction, Branching (polymer chemistry), computer, computer.programming_language
Abstract: We have observed the previously unseen decay modes Λπ+π0, Σ0π+π0 and Σ0π−π+π+ of the charmed baryon Λc+, as well as Λc+→Σ0π+ observed previously by ARGUS. The branching ratios for these four decay modes relative to Λc+→pK−π+ are measured to be 0.73 ±0.09± 0.16, 0.36 ±0.09±0.10, 0.21±0.05±0.05, and 0.21±0.02 ±0.04, respectively. Using the recent CLEO measurement of the branching ratio for Λc+→pK− π+, these modes account for 6% of Λc+ decays.
Published: 1994

145. Observation ofD0→K+π−

Author: J. L. Rodriguez, G. Wei, Anders Ryd, Frank Würthwein, M. Athanas, Z. Egyed, K. Cho, N. B. Mistry, Jungil Lee, E. H. Thorndike, Shawn W. Henderson, R. Mountain, X. Fu, D. L. Kreinick, C. Bebek, D. Perticone, D. Coppage, J. P. Alexander, T. Bergfeld, G. Zhu, M. Lambrecht, Kenneth Bloom, T. E. Browder, D. N. Brown, R. Stephens, S. E. Csorna, H. Kagan, Robert K. Kutschke, W. R. Ross, Karl Berkelman, F. Butler, N. Horwitz, I. P. J. Shipsey, N. Katayama, J. Dominick, M. Chadha, D. S. Akerib, V. Savinov, M.A. Palmer, V.G. Shelkov, James E. Fast, K. Kinoshita, H. Tajima, S. Playfer, C. P. O'Grady, G. Eigen, S. Salman, Janice Nelson, C. D. Jones, Michael Wood, B. Geiser, K. K. Gan, T. Skwarnicki, J. J. Thaler, R. L. Malchow, R. J. Morrison, Mats A Selen, M. Garcia-Sciveres, P. C. Kim, S. Sanghera, Pu Wang, N. Hancock, Christopher G. White, Darin Acosta, M. Goldberg, T. Liu, G. C. Moneti, M. Modesitt, A. J. Sadoff, R. J. Wilson, Vipul Jain, M. S. Alam, David Sperka, C. R. Sun, M. Lohner, W. T. Ford, R. D. Kass, R. Balest, M. Kelly, J. Mevissen, J. J. O'Neill, D. L. Hartill, Daniel Schmidt, Alice Bean, Ryszard Stroynowski, D. Fujino, D. G. Cassel, A. P. Freyberger, J. G. Smith, C. M. Daubenmier, D. He, P. Skubic, E. I. Shibata, J. Kandaswamy, P. L. Wang, Yurii V. Mukhin, M. Sapper, P. Rankin, F. Morrow, D. Z. Besson, J. A. Ernst, S. Schrenk, D. J. Payne, R. Ehrlich, R. Poling, N. Copty, Y. I. Skovpen, N. Kwak, J. Snow, H. Yamamoto, M. Daoudi, K. Honscheid, D. Peterson, P. S. Drell, Sheldon Stone, D. H. Miller, Glen D. Crawford, Paul Avery, S. L. Jones, D. M. Coffman, B. Ong, B. I. Eisenstein, Y. J. Kwon, M. Saulnier, Cong Wang, B. K. Heltsley, R. L. McIlwain, R. Wang, Shengfeng Yang, D. Cinabro, R. Kennett, John Yelton, S. Nakanishi, R. Davis, S. W. Gray, J. S. Miller, T. Miao, D. F. Cowen, B. Gittelman, George D Gollin, D. R. Johnson, M. Thulasidas, John E. Bartelt, D. Riley, G.R. Kalbfleisch, I. J. Kim, Yoram Rozen, Yuichi Kubota, Philip Baringer, S. Ball, J. Urheim, B. Nemati, M. Battle, A. J.R. Weinstein, T. K. Nelson, G. Vasseur, Igor Volobouev, M. M. Zoeller, H. A. Cho, C. R. Ng, Michael S. Witherell, M.K. Sung, G. Masek, Juliet Ritchie Patterson, M. Procario, Horst Severini, R. Ammar, S. Chan, F. Muheim, P. Zadorozhny, S. Menary, S. J. Patton, Marina Artuso, K. Lingel, H. N. Nelson, J. Gronberg, H. P. Paar, R. Fulton, E. Nordberg, G. S. Ludwig, S. Roberts, Ha Lam, J. D. Richman, M. Lattery, B. C. Barish, and J. Masui
Subjects: Physics, Particle physics, Stereochemistry, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, General Physics and Astronomy
Abstract: Using the CLEO II data sample, with an integrated luminosity of 1.8 fb[sup [minus]1] at and near the [Upsilon](4[ital S]) resonance, we have observed a signal for [ital D][sup 0][r arrow][ital K][sup +][pi][sup [minus]], which could be due to either [ital D][sup 0][ital [bar D]][sup 0] mixing or doubly Cabibbo suppressed decay, or a combination of the two. We find [ital scrB]([ital D][sup 0][r arrow][ital K][sup +][pi][sup [minus]])/[ital scrB]([ital D][sup 0][r arrow][ital K][sup [minus]][pi][sup +])=0.0077[plus minus]0 .0025(stat) [plus minus]0.0025(syst).
Published: 1994

146. A measurement of

Author: R. Davis, F. Butler, D. Fujino, D. Perticone, Yurii V. Mukhin, E. Nordberg, R. Malchow, J. Masui, M. S. Witherell, B. Gittelman, M. Lambrecht, H. Lam, J. J. O'Neill, Y. Kwon, S. Chan, Yoram Rozen, S. Nakanishi, C. O'Grady, P. Rankin, J. Dominick, G. Zhu, P. S. Drell, I. P.J. Shipsey, H. Kagan, V. Savinov, S. Menary, K. K. Gan, Y. Skovpen, James P. Alexander, M. Thulasidas, R. Ehrlich, D. He, C. R. Ng, G. Masek, B. Ong, P. L. Wang, J. Mevissen, C. M. Daubenmier, Ryszard Stroynowski, H. P. Paar, M. M. Zoeller, N. Katayama, H.N. Nelson, G. Vasseur, M. Selen, J. Gronberg, D. Acosta, T. K. Nelson, J. Kandaswamy, C. R. Sun, A. J. Sadoff, J. Urheim, K. W. Edwards, J. M. Yelton, H.A. Cho, George R. Kalbfleisch, Z. Egyed, R. Ammar, P. Gaiderev, S. Roberts, M. Daoudi, D. F. Cowen, R. J. Morrison, D. R. Johnson, T. Skwarnicki, A. Ryd, A. Bean, I. J. Kim, Vivek Jain, D. Riley, R. Mountain, P. Baringer, B. Geiser, M. Battle, Pu Wang, K. Honscheid, R. D. Kass, G. S. Ludwig, H. Yamamoto, D. Sperka, P. Avery, G. C. Moneti, George D Gollin, P. M. Patel, G. Crawford, J. Snow, P. Skubic, A. J. Weinstein, R. Kennett, J. R. Patterson, J. Rodriguez, D. G. Cassel, S. Yang, S. Sanghera, F. Würthwein, D. Coppage, E. I. Shibata, M. Chadha, T. Bergfeld, S. W. Gray, D. S. Akerib, Jungil Lee, M. Goldberg, D. Payne, D. Peterson, B. Barish, K. Cho, J. Fast, A. Freyberger, K. Berkelman, J. G. Smith, Christopher G. White, B. K. Heltsley, T. Liu, J. K. Nelson, M. Lattery, N. Kwak, Sheldon Stone, E. R.F. Hyatt, S. Henderson, B. I. Eisenstein, M.A. Palmer, E. H. Thorndike, C. Qiao, M. Ogg, G. Wei, S. L. Jones, R. Fulton, T. Miao, R. Kutschke, Jeffrey Richman, J. J. Thaler, William T. Ford, D. B. MacFarlane, Kenneth Bloom, N. Hancock, K. Lingel, R. Stephens, Chunjie Wang, T. E. Browder, N. B. Mistry, N. Horwitz, D. Besson, M. Kelly, J.S. Miller, H. Severini, S. Ball, Dave Britton, R. L. McIlwain, G. Eigen, M. S. Alam, V. Shelkov, P.C. Kim, Richard Wilson, N. Copty, Yuichi Kubota, J. Ernst, R. Poling, S. Schrenk, B. Nemati, P. Zadorozhny, F. Muheim, D. Cinabro, D. N. Brown, S. Playfer, W. R. Ross, C. Bebek, I. Volobouev, D. H. Miller, X. Fu, M. Saulnier, M. Sung, M. Lohner, S. E. Csorna, K. Kinoshita, S. Patton, J. Bartelt, D.L. Kreinick, M. Modesitt, D. L. Hartill, S. Salman, C. D. Jones, Michael Wood, M. Sapper, M. Garcia-Sciveres, R. Wang, M. Procario, D. M. Coffman, M. Athanas, R. Balest, Marina Artuso, and H. Tajima
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, symbols.namesake, Branching fraction, Electron–positron annihilation, symbols, Feynman diagram, B meson, Elementary particle, Branching (polymer chemistry)
Abstract: Using the CLEO II detector at CESR, we have measured the ratio of branching fractions B (D + S → φl + ν) B (D + S → φπ + ) = 0.54 ± 0.05 ± 0.04 . We use this measurement to obtain a model dependent estimate of B (D + S → φπ + ) .
Published: 1994

147. Study of the decay

Author: Juliet Ritchie Patterson, M. Modesitt, D. Payne, H. A. Cho, R. Wang, J. Gronberg, N. Horwitz, D. L. Hartill, R. Poling, C. R. Ng, G. Wei, Michael S. Witherell, D. M. Coffman, F. Butler, R. Malchow, T. Skwarnicki, John Yelton, M. Lambrecht, D. B. MacFarlane, A. J. Weinstein, B. K. Heltsley, M. S. Alam, D. He, J. G. Smith, P. M. Patel, M. Chadha, Jungil Lee, P. C. Kim, S. Henderson, Ha Lam, J. Ernst, G. Vasseur, T. E. Browder, H. N. Nelson, J. K. Nelson, D. Riley, E. R.F. Hyatt, D. H. Miller, C. Qiao, R. Mountain, N. Copty, Shengfeng Yang, T. K. Nelson, M. Lattery, D. Cinabro, D. Fujino, T. Liu, Y. Kwon, J. Bartelt, B. C. Barish, J. J. O'Neill, P. Zadorozhny, F. Muheim, C. Bebek, X. Fu, J. Masui, M. Sapper, D. Z. Besson, K. Lingel, S. Nakanishi, E. H. Thorndike, A. P. Freyberger, George R. Kalbfleisch, B. Nemati, F. Morrow, Yurii V. Mukhin, D. Acosta, D. F. Cowen, Yuichi Kubota, Anders Ryd, M. Athanas, P. Skubic, Daniel Johnson, M. Daoudi, D. Coppage, Maurice Garcia-Sciveres, Vivek Jain, M. L. Kelly, J. P. Alexander, M.A. Palmer, Richard Wilson, J. Snow, D. L. Kreinick, S. W. Gray, K. K. Gan, D. N. Brown, D. G. Cassel, P. N. Wang, Y. Skovpen, S. Sanghera, G. C. Moneti, K. Cho, R. Stephens, J. S. Miller, C. M. Daubenmier, S. Playfer, S. E. Csorna, I. P.J. Shipsey, M. Ogg, M. Procario, N. B. Mistry, K. Honscheid, R. Davis, George D Gollin, S. Roberts, G. Zhu, Ryszard Stroynowski, Alice Bean, M. Battle, B. I. Eisenstein, C. D. Jones, E. I. Shibata, H. P. Paar, R. Fulton, P. Rankin, M. Thulasidas, N. Hancock, K. Kinoshita, R. Kutschke, J. Mevissen, N. Kwak, S. Salman, J. Kandaswamy, Chunjie Wang, Michael Wood, H. Yamamoto, Marina Artuso, M. Goldberg, J. Urheim, S. Menary, E. Nordberg, Jeffrey Richman, Dave Britton, Jon J Thaler, R. L. McIlwain, Kenneth Bloom, D. Peterson, G. S. Ludwig, M. Sung, V. Shelkov, S. Schrenk, N. Katayama, D. S. Akerib, W. R. Ross, G. Eigen, I. Volobouev, H. Tajima, D. Perticone, Sheldon Stone, V. Savinov, Paul Avery, Daniel Schmidt, G. Crawford, C. R. Sun, W. T. Ford, H. Kagan, R. D. Kass, R. Balest, R. J. Morrison, Mats A Selen, A. J. Sadoff, Yoram Rozen, F. Würthwein, B. Geiser, M. Lohner, R. Kennett, B. Gittelman, I. J. Kim, Philip Baringer, P. S. Drell, Jorge Luis Rodriguez, M. Saulnier, S. Ball, R. Ehrlich, S. L. Jones, J. Dominick, D. Patton, Karl Berkelman, M. M. Zoeller, B. Ong, J. Fast, Christopher G. White, T. Miao, P. L. Wang, R. Ammar, H. Severini, S. Chan, K. W. Edwards, Z. Egyed, C. O'Grady, D. Sperka, T. Bergfeld, and G. Masek
Subjects: Nuclear physics, Physics, Semileptonic decay, Nuclear and High Energy Physics, Particle physics, Life span, Electron–positron annihilation, media_common.quotation_subject, Charm (quantum number), Asymmetry, Measure (mathematics), media_common
Abstract: Using the CLEO II detector at CESR we observe 500 Λ l + pairs consistent with the semileptonic decay Λc+ → λ+ν We measure σ(e + e − → Λ + c X) · B(Λ + c → Λ l + ν l ) = 4.77±0.25±0.66 pb . Combining with the charm semileptonic width and the lifetime of the Λc we also obtain B(Λ+c → pK−π+). We find no evidence for Λ l + ν l final states in which there are additional Λ+c decay products. We measure the decay asymmetry parameter of Λ+c → Λe+νe to be αΛc = −0.89+0.17+0.09−0.11−0.05.
Published: 1994

148. Studies of double-sided, double metal silicon strip detectors

Author: D. Sperka, C. Bebek, C. D. Jones, J. P. Alexander, S. G. Gray, D. F. Cowen, J. S. Katris, K. Honscheid, T. E. Browder, J. S. Miller, Marina Artuso, Z. Sobolewski, R. J. Morrison, Mats A Selen, H. Yamamoto, F. Würthwein, C. Qiao, S. Chan, H. N. Nelson, John Dobbins, D. L. Hale, R. Balest, T. K. Nelson, S. Kyre, S. Henderson, H. Tajima, D. Cinabro, J. Gronberg, C. M. Korte, and N. Katayama
Subjects: Capacitive coupling, Physics, Nuclear and High Energy Physics, Silicon, Physics::Instrumentation and Detectors, Preamplifier, business.industry, Detector, chemistry.chemical_element, Biasing, Capacitance, Computer Science::Other, law.invention, chemistry, law, Optoelectronics, High Energy Physics::Experiment, Photonics, Resistor, business, Instrumentation
Abstract: We have studied double-sided, double-metal silicon microstrip detectors for the CLEO-II vertex detector. The double-layer structure permits the transverse strips to be connected via longitudinal readout traces to preamplifiers located at the end of the detectors. The detectors are manufactured by Hamamatsu Photonics. They are full size AC coupled detectors with polysilicon bias resistors on the n-side and punchthrough biasing on the p-side. We present measurements of detector static properties, including the extra capacitance due to the double layer structure, as well as measurements of signal and noise.
Published: 1994

149. Analysis of hadronic transitions inϒ(3S)decays

Author: M. Procario, D. Fujino, J. J. O'Neill, T. Liu, C. Bebek, B. Nemati, Yurii V. Mukhin, A. P. Freyberger, A. J. Weinstein, Z. Egyed, F. Morrow, D. Besson, George R. Kalbfleisch, H. N. Nelson, S. Salman, Michael Wood, F. Butler, I. P.J. Shipsey, J. Urheim, M. Daoudi, J. Snow, D. Sperka, Ruifang Wang, R. Malchow, R. Ehrlich, J. Mevissen, K. Cho, N. B. Mistry, J. Kandaswamy, D. Cinabro, John Yelton, D. Peterson, H. Tajima, Sheldon Stone, S. L. Jones, J. Dominick, Paul Avery, S. Patton, K. K. Gan, T. Skwarnicki, D. F. Cowen, H. Kagan, K. Lingel, M. Sivertz, S. Nakanishi, E. H. Thorndike, Daniela Bortoletto, N. Copty, P. C. Kim, S. Henderson, M. Goldberg, W. R. Ross, D. Acosta, G. C. Moneti, Daniel Johnson, D. Perticone, M. Modesitt, V. Savinov, K. Sparks, P. L. Wang, H. Worden, D. Coppage, J. P. Alexander, Yoram Rozen, F. Würthwein, C. M. Daubenmier, Y. I. Skovpen, R. J. Morrison, Mats A Selen, Ryszard Stroynowski, M. Lambrecht, T. K. Nelson, Philip Baringer, Marina Artuso, D. M. Coffman, B. Ong, A. J. Sadoff, C. R. Sun, W. T. Ford, H. P. Paar, R. D. Kass, B. K. Heltsley, J. G. Smith, R. Fulton, S. Ball, R. Balest, D. He, P. Rankin, M. Sapper, D. L. Hartill, M. Chandha, T. E. Browder, J. S. Miller, M. Ogg, G. Zhu, J. Fast, D. Riley, R. S. Galik, R. Kutschke, Christopher G. White, D. L. Kreinick, Chunjie Wang, E. Nordberg, Daniel Schmidt, M. Thulasidas, R. Davis, S. F. Schaffner, J. Bartelt, G. S. Ludwig, S. Sanghera, P. Wilson, S. Roberts, R. Ammar, M. Battle, N. Hancock, M. L. Kelly, H. Yamamoto, Paul Sheldon, Yuichi Kubota, G. Crawford, H. Severini, S. Chan, S. W. Gray, P. Skubic, K. Honscheid, Richard Wilson, C. O'Grady, M. M. Zoeller, T. Miao, N. Katayama, D. S. Akerib, G. Eigen, J. Whitmore, Jungil Lee, M. Sung, D. H. Miller, X. Fu, R. Stephens, S. E. Csorna, K. Kinoshita, E. I. Shibata, N. Kwak, S. Menary, R. L. McIlwain, F. Shen, S. Schrenk, F. Muheim, D. N. Brown, S. Playfer, M. S. Alam, J. Ernst, M. Lattery, Pu Wang, Karl Berkelman, Anders Ryd, M. Athanas, J. Gronberg, N. Horwitz, G. Masek, Juliet Ritchie Patterson, A. Bean, J. K. Nelson, S. Yang, Hubert Kroha, H. A. Cho, Ha Lam, J. D. Richman, R. Poling, C. R. Ng, Michael S. Witherell, G. Vasseur, B. C. Barish, C. D. Jones, Maurice Garcia-Sciveres, J. Masui, D. G. Cassel, Vivek Jain, P. S. Drell, Jorge Luis Rodriguez, M. Saulnier, R. Kennett, B. Gittelman, I. J. Kim, B. Geiser, and M. Lohner
Subjects: Physics, Particle physics, Angular distribution, ComputingMilieux_THECOMPUTINGPROFESSION, Meson, Stereochemistry, Branching fraction, Hadron
Abstract: Using the CLEO II detector, we have measured the branching fractions for [Upsilon](3[ital S])[r arrow][pi][pi][Upsilon](1[ital S]), [Upsilon](3[ital S])[r arrow][pi][pi][Upsilon](2[ital S]), and the cascade [Upsilon](3[ital S])[r arrow][Upsilon](2[ital S])+[ital X], [Upsilon](2[ital S])[r arrow][pi][sup +][pi][sup [minus]][Upsilon](1[ital S]), analyzing the exclusive mode where the daughter [Upsilon] state decays to a [ital e][sup +][ital e[minus]] or [mu][sup +][mu][sup [minus]] pair, as well as the inclusive [pi][sup +][pi][sup [minus]] transitions where the final [Upsilon] state decays into hadrons. Properties of the [pi][pi] system are analyzed. Searches for the cascade decay [Upsilon](3[ital S])[r arrow][pi][sup +][pi][sup [minus]][ital h][sub [ital b]], [ital h][sub [ital b]][r arrow][gamma][eta][sub [ital b]] and [Upsilon](3[ital S])[r arrow][pi][sup 0][ital h][sub [ital b]] were also performed.
Published: 1994

150. Multi-year search for dark matter annihilations in the Sun with the AMANDA-II and IceCube detectors

Author: A. Piegsa, P. Berghaus, L. Schulte, S. Euler, K.-H. Becker, Donglian Xu, J. Feintzeig, Damian Pieloth, Matt Dunkman, T. Fischer-Wasels, M. Krasberg, A. M. Brown, D. Bose, A. Schukraft, K. Beattie, O. Schulz, K. Laihem, E. A. Strahler, A. Gross, J. P. Rodrigues, T. Stezelberger, Subir Sarkar, Naoko Kurahashi, S. Grullon, M. J. Carson, D. Bertrand, W. Huelsnitz, R. Hellauer, A. Van Overloop, S. Yoshida, M. V. D'Agostino, Dirk Ryckbosch, J. Kiryluk, N. Milke, George Japaridze, K. Rawlins, M. J. Larson, Fabian Kislat, S. Schoeneberg, M. Labare, M. Casier, Peter Mészáros, J. Dreyer, Jon Dumm, O. Engdegård, Y. Abdou, T. Waldenmaier, K. Helbing, J. W. Nam, D. J. Boersma, Anatoli Fedynitch, A. Olivas, A. Stoessl, James Madsen, D. R. Nygren, A. Silvestri, Jenni Adams, M. Stamatikos, M. Kowalski, S. Odrowski, S. Bechet, Carsten Rott, Kael Hanson, A. Franckowiak, M. Danninger, H. S. Matis, J. Miller, M. L. Benabderrahmane, D. Z. Besson, Elisa Resconi, J. Berdermann, P. Redl, F. Rothmaier, M. Wallraff, M. Bissok, M. Olivo, T. Kowarik, M. Voge, J. L. Bazo Alba, R. Wasserman, M. Schunck, K. Mase, M. Gurtner, K. Hultqvist, Darren Grant, Xianwu Xu, J. Luenemann, A. Goldschmidt, Karen Andeen, Thomas Meures, Francis Halzen, K. Hoshina, L. Koepke, Matthias Wolf, S. Hickford, A. Schoenwald, H. Landsman, Glenn Spiczak, C. Bohm, Sarah Nowicki, Juanan Aguilar, P. Zarzhitsky, Takao Kuwabara, T. Feusels, M. Merck, Paolo Desiati, Todor Stanev, O. Fadiran, R. G. Stokstad, C. Wendt, R. Wischnewski, Xinhua Bai, Michael S. Bell, Kirill Filimonov, C. Colnard, N. van Eijndhoven, B. Christy, Seth M. Cohen, J. E. Jacobsen, Marcos Santander, Nathan Whitehorn, S. Panknin, A. Ishihara, C. Pérez de los Heros, U. Naumann, Segev BenZvi, Spencer Klein, Markus Ahlers, L. Gerhardt, Karen S. Caballero-Mora, Dariusz Gora, F. Descamps, T. Gluesenkamp, Simona Toscano, Teresa Montaruli, G. Kroll, R. Nahnhauer, R. W. Ellsworth, D. Heereman, Kara Hoffman, Y. Sestayo, A. H. Cruz Silva, Ch. Weaver, J. K. Becker, S. Tilav, S. Hussain, M. Dierckxsens, R. Franke, S. Westerhoff, Wolfgang Rhode, Samvel Ter-Antonyan, H. G. Sander, D. J. Koskinen, T. Griesel, A. Schultes, J. C. Gallagher, Chad Finley, A. Haj Ismail, E. Middell, Elisa Bernardini, C. Walck, K. Wiebe, M. Ribordy, Christian Spiering, Allan Hallgren, D. Tosi, Sandro Kopper, Chun Xu, Hermann Kolanoski, S. Boeser, Thomas K. Gaisser, G. B. Yodh, I. Taboada, S. Flis, S. Seunarine, D. Rutledge, J. A. Goodman, M. Stueer, A. Marotta, B. Hoffmann, H. Taavola, E. Blaufuss, J. C. Davis, K. Han, L. Brayeur, Stijn Buitink, M. Richman, S. M. Movit, Larissa Paul, R. J. Lauer, C. De Clercq, Gerald Przybylski, M. Zoll, T. Degner, R. Morse, Albrecht Karle, David A. Williams, Markus Ackermann, S. W. Barwick, J. Blumenthal, D. Altmann, K. Meagher, Olga Botner, Henrik J. Johansson, K. Schatto, G. Kohnen, Timo Karg, P. O. Hulth, J. Eisch, G. de Vries-Uiterweerd, B. Semburg, H. Wissing, J. Auffenberg, A. Tamburro, Daniel Bindig, J. van Santen, Rasha Abbasi, J. Kunnen, J. H. Koehne, F. Clevermann, P. B. Price, T. O. B. Schmidt, T. R. Wood, J. P. Yanez, Kurt Woschnagg, Paul Evenson, G. W. Sullivan, Dmitry Chirkin, Alexander Kappes, T. Abu-Zayyad, M. Vehring, D. F. Cowen, C. Ha, Tim Ruhe, M. Walter, A. Rizzo, S. H. Seo, J. P. Huelss, J. J. Beatty, J. Posselt, Reina H. Maruyama, E. Jacobi, R. C. Bay, Juan Carlos Diaz-Velez, A. Homeier, Christopher Wiebusch, J. Daughhetee, B. Ruzybayev, Aongus O'Murchadha, D. Berley, G. C. Hill, Michael J. Baker, L. Gladstone, Dirk Heinen, D. Seckel, S. Miarecki, A. R. Fazely, Tyce DeYoung, P. A. Toale, R. Ström, Aguilar Sanchez, Juan, Montaruli, Teresa, Physics, and Elementary Particle Physics
Subjects: Nuclear and High Energy Physics, Particle physics, Limits, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, Capture, FOS: Physical sciences, Astrophysics, South-Pole, ddc:500.2, 01 natural sciences, 7. Clean energy, IceCube, High Energy Physics - Experiment, LIMITS, High Energy Physics - Experiment (hep-ex), SOUTH-POLE, 0103 physical sciences, PARTICLES, ddc:530, Limit (mathematics), 010306 general physics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Muon, 010308 nuclear & particles physics, ICE, Detector, Ice, Supersymmetry, CAPTURE, Particles, Physics and Astronomy, Neutrino detector, Neutralino, High Energy Physics::Experiment, Neutrino, Astrophysics - High Energy Astrophysical Phenomena
Abstract: A search for an excess of muon-neutrinos from dark matter annihilations in the Sun has been performed with the AMANDA-II neutrino telescope using data collected in 812 days of livetime between 2001 and 2006 and 149 days of livetime collected with the AMANDA-II and the 40-string configuration of IceCube during 2008 and early 2009. No excess over the expected atmospheric neutrino background has been observed. We combine these results with the previously published IceCube limits obtained with data taken during 2007 to obtain a total livetime of 1065 days. We provide an upper limit at 90% confidence level on the annihilation rate of captured neutralinos in the Sun, as well as the corresponding muon flux limit at the Earth, both as functions of the neutralino mass in the range 50 GeV-5000 GeV. We also derive a limit on the neutralino-proton spin-dependent and spin-independent cross section. The limits presented here improve the previous results obtained by the collaboration between a factor of two and five, as well as extending the neutralino masses probed down to 50 GeV. The spin-dependent cross section limits are the most stringent so far for neutralino masses above 200 GeV, and well below direct search results in the mass range from 50 GeV to 5 TeV., author list corrected. Full author list added in this website
Published: 2011

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