Georg Viehhauser: Publications

Measurement of the Ξc⁺ lifetime

Physical Review D - Particles, Fields, Gravitation and Cosmology 65:3 (2002) 311021-311025

Authors:

AH Mahmood, SE Csorna, I Danko, Z Xu, G Bonvicini, D Cinabro, M Dubrovin, S McGee, A Bornheim, E Lipeles, SP Pappas, A Shapiro, WM Sun, AJ Weinstein, G Masek, HP Paar, R Mahapatra, RJ Morrison, HN Nelson, RA Briere, GP Chen, T Ferguson, G Tatishvili, H Vogel, NE Adam, JP Alexander, C Bebek, K Berkelman, F Blanc, V Boisvert, DG Cassel, PS Drell, JE Duboscq, KM Ecklund, R Ehrlich, RS Galik, L Gibbons, B Gittelman, SW Gray, DL Hartill, BK Heltsley, L Hsu, CD Jones, J Kandaswamy, DL Kreinick, A Magerkurth, H Mahlke-Krüger, TO Meyer, NB Mistry, E Nordberg, M Palmer, JR Patterson, D Peterson, J Pivarski, D Riley, AJ Sadoff, H Schwarthoff, MR Shepherd, JG Thayer, D Urner, B Valant-Spaight, G Viehhauser, A Warburton, M Weinberger, SB Athar, P Avery, C Prescott, H Stoeck, J Yelton, G Brandenburg, A Ershov, DYJ Kim, R Wilson, K Benslama, BI Eisenstein, J Ernst, GD Gollin, RM Hans, I Karliner, N Lowrey, MA Marsh, C Plager, C Sedlack, M Selen, JJ Thaler, J Williams, KW Edwards, R Ammar, D Besson, X Zhao, S Anderson, VV Frolov, Y Kubota, SJ Lee, SZ Li, R Poling, A Smith, CJ Stepaniak, J Urheim

Abstract:

The Ξc+ lifetime is measured using 9.0 fb-1 of e+e- annihilation data collected on and just below the Υ(4S) resonance with the CLEO II.V detector at CESR. This is the first measurement of the Ξc+ lifetime from a collider experiment. Using an unbinned maximum likelihood fit, the Ξc+ lifetime is measured to be 503 ±47(stat) ± 18(syst) fs. The precision of this measurement is comparable to previous measurements carried out by fixed target experiments with different sources of systematic uncertainties.

Search for B⁰→π⁰π⁰ decay

Physical Review D - Particles, Fields, Gravitation and Cosmology 65:3 (2002) 311031-311034

Authors:

DM Asner, A Eppich, TS Hill, RJ Morrison, RA Briere, GP Chen, T Ferguson, H Vogel, A Gritsan, JP Alexander, R Baker, C Bebek, BE Berger, K Berkelman, F Blanc, V Boisvert, DG Cassel, PS Drell, JE Duboscq, KM Ecklund, R Ehrlich, P Gaidarev, L Gibbons, B Gittelman, SW Gray, DL Hartill, BK Heltsley, PI Hopman, L Hsu, CD Jones, J Kandaswamy, DL Kreinick, M Lohner, A Magerkurth, TO Meyer, NB Mistry, E Nordberg, M Palmer, JR Patterson, D Peterson, D Riley, A Romano, JG Thayer, D Urner, B Valant-Spaight, G Viehhauser, A Warburton, P Avery, C Prescott, AI Rubiera, H Stoeck, J Yelton, G Brandenburg, A Ershov, DYJ Kim, R Wilson, T Bergfeld, BI Eisenstein, J Ernst, GE Gladding, GD Gollin, RM Hans, E Johnson, I Karliner, MA Marsh, C Plager, C Sedlack, M Selen, JJ Thaler, J Williams, KW Edwards, R Janicek, PM Patel, AJ Sadoff, R Ammar, A Bean, D Besson, X Zhao, S Anderson, VV Frolov, Y Kubota, SJ Lee, JJ O'Neill, R Poling, T Riehle, A Smith, CJ Stepaniak, J Urheim, S Ahmed, MS Alam, SB Athar, L Jian, L Ling, M Saleem, S Timm, F Wappler, A Anastassov

Abstract:

We have searched for the charmless hadronic decay of B0 mesons into two neutral pions. Using 9.13 fb-1 taken at the Υ(4S) with the CLEO detector, we obtain an improved upper limit for the branching fraction B(B0→π0π0)<5.7 ×10-6 at the 90% confidence level.

Search for charmless B --> VV decays.

Phys Rev Lett 88:2 (2002) 021802

Authors:

R Godang, G Bonvicini, D Cinabro, M Dubrovin, S McGee, GJ Zhou, A Bornheim, E Lipeles, SP Pappas, M Schmidtler, A Shapiro, WM Sun, AJ Weinstein, DE Jaffe, G Masek, HP Paar, DM Asner, A Eppich, TS Hill, RJ Morrison, RA Briere, GP Chen, T Ferguson, H Vogel, A Gritsan, JP Alexander, R Baker, C Bebek, BE Berger, K Berkelman, F Blanc, V Boisvert, DG Cassel, PS Drell, JE Duboscq, KM Ecklund, R Ehrlich, AD Foland, P Gaidarev, L Gibbons, B Gittelman, SW Gray, DL Hartill, BK Heltsley, PI Hopman, L Hsu, CD Jones, J Kandaswamy, DL Kreinick, M Lohner, A Magerkurth, TO Meyer, NB Mistry, E Nordberg, M Palmer, JR Patterson, D Peterson, D Riley, A Romano, JG Thayer, D Urner, B Valant-Spaight, G Viehhauser, A Warburton, P Avery, C Prescott, AI Rubiera, H Stoeck, J Yelton, G Brandenburg, A Ershov, DY-J Kim, R Wilson, T Bergfeld, BI Eisenstein, J Ernst, GE Gladding, GD Gollin, RM Hans, E Johnson, I Karliner, MA Marsh, C Plager, C Sedlack, M Selen, JJ Thaler, J Williams, KW Edwards, R Janicek, PM Patel, AJ Sadoff, R Ammar, A Bean, D Besson, X Zhao, S Anderson, VV Frolov, Y Kubota, SJ Lee, R Mahapatra, JJ O'Neill, R Poling, T Riehle, A Smith, CJ Stepaniak, J Urheim, S Ahmed, MS Alam, SB Athar, L Jian, L Ling, M Saleem, S Timm, F Wappler, A Anastassov, E Eckhart, KK Gan, C Gwon, T Hart, K Honscheid, D Hufnagel, H Kagan, R Kass, TK Pedlar, H Schwarthoff, JB Thayer, E von Toerne, MM Zoeller, SJ Richichi, H Severini, P Skubic, A Undrus, V Savinov, S Chen, J Fast, JW Hinson, J Lee, DH Miller, V Pavlunin, EI Shibata, IPJ Shipsey, D Cronin-Hennessy, AL Lyon, EH Thorndike, TE Coan, V Fadeyev, YS Gao, Y Maravin, I Narsky, R Stroynowski, J Ye, T Wlodek, M Artuso, R Ayad, C Boulahouache, K Bukin, E Dambasuren, G Majumder, GC Moneti, R Mountain, S Schuh, T Skwarnicki, S Stone, JC Wang, A Wolf, J Wu, S Kopp, M Kostin, AH Mahmood, SE Csorna, I Danko, KW McLean, Z Xu, CLEO Collaboration

Abstract:

We have studied two-body charmless decays of the B meson into the final states rho(0)rho(0), K(*0)rho(0), K(*0)K(*0), K(*0)K(*0), K(*+)rho(0), K(*+)K(*0), and K(*+)K(*-) using only decay modes with charged daughter particles. Using 9.7x10(6) BB pairs collected with the CLEO detector, we place 90% confidence level upper limits on the branching fractions (1.4-14.1)x10(-5), depending on final state and polarization.

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First observation of B̄0→ D*0π+π+π-π -decays

Physical Review D 65:1 (2002)

Authors:

KW Edwards, AJ Sadoff, R Ammar, A Bean, D Besson, X Zhao, S Anderson, VV Frolov, Y Kubota, SJ Lee, R Poling, A Smith, CJ Stepaniak, J Urheim, S Ahmed, MS Alam, SB Athar, L Jian, L Ling, M Saleem, S Timm, F Wappler, A Anastassov, E Eckhart, KK Gan, C Gwon, T Hart, K Honscheid, D Hufnagel, H Kagan, R Kass, TK Pedlar, JB Thayer, E Von Toerne, MM Zoeller, SJ Richichi, H Severini, P Skubic, A Undrus, V Savinov, S Chen, JW Hinson, J Lee, DH Miller, EI Shibata, IPJ Shipsey, V Pavlunin, D Cronin-Hennessy, AL Lyon, EH Thorndike, TE Coan, YS Gao, Y Maravin, I Narsky, R Stroynowski, J Ye, T Wlodek, M Artuso, K Benslama, C Boulahouache, K Bukin, E Dambasuren, G Majumder, R Mountain, T Skwarnicki, S Stone, JC Wang, A Wolf, S Kopp, M Kostin, AH Mahmood, SE Csorna, I Danko, KW McLean, Z Xu, R Godang, G Bonvicini, D Cinabro, M Dubrovin, S McGee, A Bornheim, E Lipeles, SP Pappas, A Shapiro, WM Sun, AJ Weinstein, DE Jaffe, R Mahapatra, G Masek, HP Paar, A Eppich, RJ Morrison, RA Briere, GP Chen, T Ferguson, H Vogel, JP Alexander, C Bebek, BE Berger

Abstract:

We report on the observation of B̄⁰→D* ⁰π⁺π⁺π^- π^-decays. The branching ratio is (0.30±0.07 ±0.06)%. Interest in this particular mode was sparked by Ligeti, Luke and Wise who propose it as a way to check the validity of factorization tests in B̄⁰→D*⁺π⁺π ^-π^-π⁰ decays. © 2001 The American Physical Society.

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Measurement of exclusive B decays to final states containing a charmed baryon

Physical Review D 66:9 (2002)

Authors:

SA Dytman, JA Mueller, S Nam, V Savinov, S Chen, JW Hinson, J Lee, DH Millger, V Paylunin, EI Shibata, IPJ Shipsey, D Cronin-Hennessy, AL Lyon, CS Park, W Park, EH Thorndike, TE Coah, YS Gao, F Liu, Y Maravin, R Stroynowski, M Artuso, S Blusk, C Boulahouache, K Bukin, E Dambasuren, K Khroustalev, R Mountain, R Nandakumar, T Skwarnicki, S Stone, JC Wang, AH Mahmood, SE Csorna, I Danko, G Bonvicini, D Cinabro, M Dubrovin, S McGee, A Bornheim, E Lipeles, SP Pappas, A Shapiro, WM Sun, AJ Weinstein, R Mahapatra, RA Briere, GP Chen, T Ferguson, G Tatishvili, H Vogel, NE Adam, JP Alexander, K Berkelman, V Boisvert, DG Cassel, PS Drell, JE Duboscq, KM Ecklund, R Ehrlich, L Gibbons, B Gittelman, SW Gray, DL Hartill, BK Heltsley, L Hsu, CD Jones, J Kandaswamy, DL Kreinick, A Magerkurth, H Mahlke-Krüger, TO Meyer, NB Mistry, E Nordberg, JR Patterson, D Peterson, J Pivarski, D Riley, AJ Sadoff, H Schwarthoff, MR Shepherd, JG Thayer, D Urner, G Viehhauser, A Warburton, M Weinberger, SB Athar, P Avery, L Breva-Newell, V Potlia, H Stoeck, J Yelton, G Brandenburg, DYJ Kim, R Wilson, K Benslama, BI Eisenstein, J Ernst, GD Gollin

Abstract:

Using data collected by the CLEO detector in the γ(4S) region, we report new measurements of the exclusive decays of B mesons into final states of the type Λc+p̄n(π), where n= 0,1,2,3. We find signals in modes with one, two and three pions and an upper limit for the two-body decay Λc+p̄. We also make the first measurements of exclusive decays of B mesons to ∑cp̄n(π), where n = 0,1,2. We find signals in modes with one and two pions and an upper limit for the two-body decay ∑cp̄. Measurements of these modes shed light on the mechanisms involved in B decays to baryons. © 2002 The American Physical Society.

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Georg Viehhauser

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Measurement of the Ξc⁺ lifetime

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Search for B⁰→π⁰π⁰ decay

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Search for charmless B --> VV decays.

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First observation of B̄0→ D*0π+π+π-π -decays

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Measurement of exclusive B decays to final states containing a charmed baryon

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Georg Viehhauser

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Measurement of the Ξc+ lifetime

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Search for B0→π0π0 decay

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Search for charmless B --> VV decays.

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First observation of B̄0→ D*0π+π+π-π -decays

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Measurement of exclusive B decays to final states containing a charmed baryon

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Measurement of the Ξc⁺ lifetime

Search for B⁰→π⁰π⁰ decay