Georg Viehhauser: Publications

Performance of the CLEO III LiF-TEA ring imaging Cherenkov detector in a high-energy muon beam

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 441:3 (2000) 374-392

Authors:

M Artuso, R Ayad, F Azfar, A Efimov, S Kopp, R Mountain, G Majumder, S Schuh, T Skwarnicki, S Stone, G Viehhauser, JC Wang, T Coan, V Fadeyev, I Volobouev, J Ye, S Anderson, Y Kubota, A Smith, E Lipeles

Abstract:

The CLEO III Ring Imaging Cherenkov detector uses LiF radiators to generate Cherenkov photons which are then detected by proportional wire chambers using a mixture of CH4 and TEA gases. The first two photon detector modules which were constructed, were taken to the Fermilab and tested in a beam dump that provided high-momentum muons. We report on results using both plane and 'sawtooth'-shaped radiators. Specifically, we discuss the number of photoelectrons observed per ring and the angular resolution. The particle separation ability is shown to be sufficient for the physics of CLEO III.

More details from the publisher

More details

Structure functions in the decay τ∓→π∓π0π0ν τ

Physical Review D Particles Fields Gravitation and Cosmology 61:5 (2000) 1-11

Authors:

TE Browder, Y Li, JL Rodriguez, H Yamamoto, T Bergfeld, BI Eisenstein, J Ernst, GE Gladding, GD Gollin, RM Hans, E Johnson, I Karliner, MA Marsh, M Palmer, C Plager, C Sedlack, M Selen, JJ Thaler, J Williams, KW Edwards, R Janicek, PM Patel, AJ Sadoff, R Ammar, P Baringer, A Bean, D Besson, R Davis, S Kotov, I Kravchenko, N Kwak, X Zhao, S Anderson, VV Frolov, Y Kubota, SJ Lee, R Mahapatra, JJ O'Neill, R Poling, T Riehle, A Smith, S Ahmed, MS Alam, SB Athar, L Jian, L Ling, AH Mahmood, M Saleem, S Timm, F Wappler, A Anastassov, JE Duboscq, KK Gan, C Gwon, T Hart, K Honscheid, H Kagan, R Kass, J Lorenc, H Schwarthoff, E Von Toerne, MM Zoeller, SJ Richichi, H Severini, P Skubic, A Undrus, M Bishai, S Chen, J Fast, JW Hinson, J Lee, N Menon, DH Miller, EI Shibata, IPJ Shipsey, Y Kwon, AL Lyon, EH Thorndike, CP Jessop, K Lingel, H Marsiske, ML Perl, V Savinov, D Ugolini, X Zhou, TE Coan, V Fadeyev, I Korolkov, Y Maravin, I Narsky, R Stroynowski, J Ye, T Wlodek, M Artuso, R Ayad, E Dambasuren, S Kopp, G Majumder, GC Moneti, R Mountain

More details from the publisher

Observation of radiative leptonic decay of the tau lepton.

Phys Rev Lett 84:5 (2000) 830-834

Authors:

G Viehhauser, JC Wang, A Wolf, J Wu, SE Csorna, KW McLean, S Marka, Z Xu, R Godang, K Kinoshita, IC Lai, S Schrenk, G Bonvicini, D Cinabro, R Greene, LP Perera, GJ Zhou, S Chan, G Eigen, E Lipeles, M Schmidtler, A Shapiro, WM Sun, J Urheim, AJ Weinstein, F Wurthwein

Abstract:

Using 4.68 fb(-1) of e(+)e(-) annihilation data collected with the CLEO II detector at the Cornell Electron Storage Ring, we have studied tau radiative decays tau(-)-->nu(tau)&mgr;(-)nu;(&mgr;)gamma and tau(-)-->nu(tau)e(-)nu;(e)gamma. For a 10 MeV minimum photon energy in the tau rest frame, the branching fraction for radiative tau decay to a muon or electron is measured to be (3.61+/-0.16+/-0. 35)x10(-3) or (1.75+/-0.06+/-0.17)x10(-2), respectively. The branching fractions are in agreement with standard model theoretical predictions.

More details from the publisher

More details

Charged track multiplicity in B meson decay

Physical Review D Particles Fields Gravitation and Cosmology 61:7 (2000)

Authors:

G Brandenburg, A Ershov, YS Gao, DYJ Kim, R Wilson, RM Hans, E Johnson, I Karliner, MA Marsh, M Palmer, C Plager, C Sedlack, M Selen, JJ Thaler, J Williams, RS Galik, L Gibbons, B Gittelman, SW Gray, DL Hartill, BK Heltsley, PI Hopman, CD Jones, DL Kreinick, T Lee, Y Liu, TO Meyer, NB Mistry, CR Ng, E Nordberg, JR Patterson, D Peterson, D Riley, JG Thayer, PG Thies, B Valant-Spaight, A Warburton

Abstract:

We have used the CLEO II detector to study the multiplicity of charged particles in the decays of B mesons produced at the (Formula presented) resonance. Using a sample of (Formula presented) B meson pairs, we find the mean inclusive charged particle multiplicity to be (Formula presented) for the decay of the pair. This corresponds to a mean multiplicity of (Formula presented) for a single B meson. Using the same data sample, we have also extracted the mean multiplicities in semileptonic and nonleptonic decays. We measure a mean of (Formula presented) charged particles per (Formula presented) decay when both mesons decay semileptonically. When neither B meson decays semileptonically, we measure a mean charged particle multiplicity of (Formula presented) per (Formula presented) pair. © 2000 The American Physical Society.

More details from the publisher

More details

First Observation of the Decay B →J/ψϕK

Physical Review Letters 84:7 (2000) 1393-1397

Authors:

A Anastassov, JE Duboscq, KK Gan, C Gwon, T Hart, K Honscheid, D Hufnagel, H Kagan, R Kass, J Lorenc, TK Pedlar, H Schwarthoff, E von Toerne, MM Zoeller, SJ Richichi, H Severini, P Skubic, A Undrus, S Chen, J Fast, JW Hinson, J Lee, N Menon, DH Miller, EI Shibata, IPJ Shipsey, V Pavlunin, D Cronin-Hennessy, Y Kwon, AL Lyon, EH Thorndike, H Marsiske, ML Perl, V Savinov, D Ugolini, X Zhou, TE Coan, V Fadeyev, I Korolkov, Y Maravin, I Narsky, R Stroynowski, J Ye, T Wlodek, M Artuso, R Ayad, C Boulahouache, K Bukin, E Dambasuren, S Karamov, S Kopp, G Majumder, GC Moneti, R Mountain, S Schuh, T Skwarnicki, S Stone, G Viehhauser, JC Wang, A Wolf, J Wu, SE Csorna, I Danko, KW McLean, S Márka, Z Xu, R Godang, K Kinoshita, IC Lai, S Schrenk, G Bonvicini, D Cinabro, LP Perera, GJ Zhou, G Eigen, E Lipeles, M Schmidtler, A Shapiro, WM Sun, AJ Weinstein, F Würthwein, DE Jaffe, G Masek, HP Paar, EM Potter, S Prell, V Sharma, DM Asner, A Eppich, J Gronberg, TS Hill, DJ Lange, RJ Morrison, HN Nelson, RA Briere, BH Behrens, WT Ford, A Gritsan, J Roy, JG Smith

Abstract:

We present the first observation of the decay B →J/ψϕK Using 9.6 ×106BB¯meson pairs collected with the CLEO detector, we have observed ten fully reconstructed B →J/ψϕK candidates, whereas the estimated background is 0.5 ±0.2event. We obtain a branching fraction of B(B →J/ψϕK)=(8.8−3.0+3.5[stat]±1.3[syst])×10−5This is the first observed B meson decay requiring the creation of an additional ss¯quark pair. © 2000 The American Physical Society.

More details from the publisher

More details

Details from ArXiV

Georg Viehhauser

Sub department

Performance of the CLEO III LiF-TEA ring imaging Cherenkov detector in a high-energy muon beam

Authors:

Abstract:

Structure functions in the decay τ∓→π∓π0π0ν τ

Authors:

Observation of radiative leptonic decay of the tau lepton.

Authors:

Abstract:

Charged track multiplicity in B meson decay

Authors:

Abstract:

First Observation of the Decay B →J/ψϕK

Authors:

Abstract:

FIND US

CONTACT US

Georg Viehhauser

Sub department

Research groups

Performance of the CLEO III LiF-TEA ring imaging Cherenkov detector in a high-energy muon beam

Authors:

Abstract:

Structure functions in the decay τ∓→π∓π0π0ν τ

Authors:

Observation of radiative leptonic decay of the tau lepton.

Authors:

Abstract:

Charged track multiplicity in B meson decay

Authors:

Abstract:

First Observation of the Decay B →J/ψϕK

Authors:

Abstract: