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1. Evidence for $\Lambda_c(2593)^+$ production

Author

Albrecht, H., Hamacher, T., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, Arnd, Lindner, A., Schieber, M., Siegmund, T., Hofmann, R. P., Thurn, H., Topfer, D., Wegener, D., Frankl, C., Graf, J., Schmidtler, M., Schramm, M., Schubert, Klaus R., Schwierz, R., Spaan, B., Kirchhoff, T., Waldi, R., Reim, K., Wegener, H., Eckmann, R., Kuipers, H., Mai, O., Mundt, R., Oest, T., Reiner, R., Rohde, A., Mankel, R., Schmidt-Parzefall, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hupper, A., Knopfle, K. T., Spengler, J., Krieger, P., MacFarlane, D. B., Nau, A., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., Van de Water, Richard George, Yoon, T. S., Schneider, M., Weseler, S., Bracko, M., Kernel, G., Krizan, P., Nowak, S., Kriznic, E., Medin, G., Podobnik, T., Zivko, T., Balagura, V., Barsuk, S., Belyaev, I., Chistov, R., Danilov, M., Eiges, V., Ressing, D., Gershtein, L., Gershtein, Yu., Golutvin, A., Igonkina, O., Korolko, I., Kostina, G., Litvintsev, D., Pakhlov, P., Semenov, S., Snizhko, A., Schroder, H., Tichomirov, I., Zaitsev, Yu., ARGUS Collaboration, and Schulz, H. D.

Subjects
new particle: Lambda/c(2593), +Lambda%2Fc%2B+pi%2B+pi%22">Lambda/c(2593) --> Lambda/c+ pi+ pi, ARGUS, B119D, DESY DORIS Stor, momentum spectrum, annihilation [electron positron], electroproduction [charmed baryon], +Sigma%2Fc%2B%2B+pi%22">Lambda/c(2593) --> Sigma/c++ pi, electron positron: annihilation, mass difference: (Lambda/c(2625) Lambda/c(2593), +Lambda%2Fc%282593%29+anything%22">electron positron --> Lambda/c(2593) anything, B119W, channel cross section: branching ratio, approx. 10 GeV-cms, ddc:530, (Lambda/c+ pi+ pi-) [mass spectrum], Lambda/c(2593): width, branching ratio [channel cross section], B119.1, B119.2, B119.3, mass spectrum: (Lambda/c+ pi+ pi-), mass difference: (Lambda/c(2593) Lambda/c+), electron positron: colliding beams, B102D, Lambda/c(2593) [new particle], (Lambda/c(2625) Lambda/c(2593) [mass difference], charmed baryon: electroproduction, (Lambda/c(2593) Lambda/c+) [mass difference], colliding beams [electron positron], +Sigma%2Fc0+pi%2B%22">Lambda/c(2593) --> Sigma/c0 pi+, width [Lambda/c(2593)], experimental results
Abstract

11 pp. (1997)., Using the ARGUS detector at the e + e − storage ring DORIS II at DESY, we have found evidence for the production of the excited charmed baryon state Λ c (2593) + in the channel Λ c + π + π − . Its mass was determined to be (2594.6±0.9±0.4) MeV/c 2 , and the natural width measured to be Γ = (2.9 −2.1−1.4 +2.9+1.8 ) MeV. The production cross section times the branching ratios of σ ( e + e − → Λ c (2593) + X ) × Br ( Λ c (2593) + → Λ c + π + π − ) × Br ( Λ c + → pK − π + ) was measured to be (0.25 −0.13 +0.24 ±0.13) pb. The fractions of Λ c (2593) + decays proceeding through the Σ c 0 π + and Σ c ++ π − channels were determined to be 0.29±0.10±0.11 and 0.37±0.12±0.13, respectively.

Published
1997
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2. A Partial wave analysis of the reaction $\gamma \gamma \to \pi^+ \pi^- \pi^0$

Author

Albrecht, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Mankel, R., Nau, A., Nowak, S., Ressing, D., Schroder, H., Schulz, H. D., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, Arnd, Lindner, A., Schieber, M., Siegmund, T., Thurn, H., Topfer, D., Wegener, D., Frankl, C., Graf, J., Schmidtler, M., Schramm, M., Schubert, Klaus R., Schwierz, R., Spaan, B., Waldi, R., Reim, K., Wegener, H., Eckmann, R., Kuipers, H., Mai, O., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hupper, A., Knopfle, K. T., Spengler, J., Krieger, P., MacFarlane, D. B., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., Van de Water, Richard George, Yoon, T. S., Schneider, M., Weseler, S., Bracko, M., Kernel, G., Krizan, P., Kriznic, E., Medin, G., Podobnik, T., Zivko, T., Balagura, V., Barsuk, S., Belyaev, I., Chistov, R., Danilov, M., Eiges, V., Gershtein, L., Gershtein, Yu., Golutvin, A., Igonkina, O., Korolko, I., Kostina, G., Litvintsev, D., Pakhlov, P., Semenov, S., Snizhko, A., Tichomirov, I., and Zaitsev, Yu.

Subjects
exchange: two-photon, ARGUS, photon photon: exclusive reaction, pi: multiple production, tensor meson: photoproduction, width: branching ratio, DESY DORIS Stor, a2(1320): width, spin: alignment, partial wave analysis, +pi%2B+pi-+pi0+positron+electron%22">electron positron --> pi+ pi- pi0 positron electron, electron positron: colliding beams, a2(1320): hadronic decay, mass spectrum: (pi+ pi- pi0), cross section: energy dependence, +rho%28770%29+pi%22">pi(1300) --> rho(770) pi, pi2(1670): width, +rho%28770%29+pi%22">a2(1320) --> rho(770) pi, 10.4 GeV-cms, pi(1300): hadronic decay, upper limit, experimental results
Abstract

Zeitschrift für Physik / C 74, 469-477 (1997)., Published by Springer, Berlin

Published
1997
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3. A Partial wave analysis of the reaction $\gamma \gamma \to \pi^+ \pi^- \pi^0$

Author

Albrecht, H., Hamacher, T., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, Arnd, Lindner, A., Schieber, M., Siegmund, T., Hofmann, R. P., Thurn, H., Topfer, D., Wegener, D., Frankl, C., Graf, J., Schmidtler, M., Schramm, M., Schubert, Klaus R., Schwierz, R., Spaan, B., Kirchhoff, T., Waldi, R., Reim, K., Wegener, H., Eckmann, R., Kuipers, H., Mai, O., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Mankel, R., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hupper, A., Knopfle, K. T., Spengler, J., Krieger, P., MacFarlane, D. B., Prentice, J. D., Nau, A., Saull, P. R. B., Tzamariudaki, K., Van de Water, Richard George, Yoon, T. S., Schneider, M., Weseler, S., Bracko, M., Kernel, G., Krizan, P., Kriznic, E., Nowak, S., Medin, G., Podobnik, T., Zivko, T., Balagura, V., Barsuk, S., Belyaev, I., Chistov, R., Danilov, M., Eiges, V., Gershtein, L., Ressing, D., Gershtein, Yu., Golutvin, A., Igonkina, O., Korolko, I., Kostina, G., Litvintsev, D., Pakhlov, P., Semenov, S., Snizhko, A., Tichomirov, I., Schroder, H., Zaitsev, Yu., ARGUS Collaboration, and Schulz, H. D.

Subjects
two-photon [exchange], +pi%2B+pi-+pi0+positron+electron%22">electron positron --> pi+ pi- pi0 positron electron, hadronic decay [a2(1320)], ARGUS, DESY DORIS Stor, photoproduction [tensor meson], partial wave analysis, multiple production [pi], (pi+ pi- pi0) [mass spectrum], exclusive reaction [photon photon], +rho%28770%29+pi%22">pi(1300) --> rho(770) pi, width [a2(1320)], alignment [spin], hadronic decay [pi(1300)], colliding beams [electron positron], ddc:530, width [pi2(1670)], 10.4 GeV-cms, energy dependence [cross section], +rho%28770%29+pi%22">a2(1320) --> rho(770) pi, branching ratio [width], upper limit, experimental results
Published
1997

4. Measurement of the decay $D_{s2}^{*+} (2573) \to D^0K^+$

Author

Albrecht, H., Hamacher, T., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, Arnd, Lindner, A., Schieber, M., Siegmund, T., Hofmann, R. P., Spaan, B., Thurn, H., Topfer, D., Wegener, D., Eckstein, P., Frankl, C., Graf, J., Schmidtler, M., Schramm, M., Schubert, Klaus R., Kirchhoff, T., Schwierz, R., Waldi, R., Reim, K., Wegener, H., Eckmann, R., Kuipers, H., Mai, O., Mundt, R., Oest, T., Reiner, R., Mankel, R., Schmidt-Parzefall, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hupper, A., Knopfle, K. T., Spengler, J., Krieger, P., MacFarlane, D. B., Nau, A., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Schneider, M., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Nowak, S., Podobnik, T., Zivko, T., Balagura, V., Barsuk, S., Belyaev, I., Chistov, R., Danilov, M., Droutskoy, A., Eiges, V., Gershtein, L., Ressing, D., Gershtein, Yu., Golutvin, A., Korolko, I., Kostina, G., Litvintsev, D., Pakhlov, P., Semenov, S., Snizhko, A., Tikhomirov, I., Zaitsev, Yu., Schroder, H., ARGUS Collaboration, and Schulz, H. D.

Subjects
+D0+K%2B%22">D/s*2(2573) --> D0 K+, electroproduction: charmed meson, annihilation: electron positron, D/s*2(2573): mass, ARGUS, DESY DORIS Stor, annihilation [electron positron], electron positron: annihilation, electroproduction: D/s*2(2573), electroproduction [charmed meson], channel cross section: branching ratio, electroproduction [D/s*2(2573)], D/s*2(2573) [electroproduction], 9.46: 10.02: 10.58 GeV-cms, 10.02: 10.58 GeV-cms [9.46], ddc:530, hadronic decay: D/s*2(2573), electron positron [colliding beams], mass spectrum [(D0 K+)], D/s*2(2573) [mass], D/s*2(2573) [hadronic decay], D/s*2(2573): electroproduction, electron positron [annihilation], branching ratio [channel cross section], charmed meson [electroproduction], D/s*2(2573) [new particle], electron positron: colliding beams, mass [D/s*2(2573)], mass spectrum: (D0 K+), (D0 K+): mass spectrum, mass: D/s*2(2573), colliding beams: electron positron, D/s*2(2573): width, (D0 K+) [mass spectrum], D/s*2(2573): hadronic decay, colliding beams [electron positron], width [D/s*2(2573)], new particle: D/s*2(2573), hadronic decay [D/s*2(2573)], charmed meson: electroproduction, experimental results
Abstract

Zeitschrift für Physik / C 69(3), 405-408 (1996). doi:10.1007/BF02907420, Using the ARGUS detector at the e+e− storage ring DORIS II at DESY we have measured the parameters of a charmed strange meson D*s2+(2573) decaying into D0K+. The mass of this state was found to be (2574.5±3.3±1.6) MeV/c2. The measured value of its width is (10.4±8.3±3.0) MeV and the product of the production cross section and branching ratio for this channel was determined to be (10.6±4.2−1.2+2.3) pb., Published by Springer, Heidelberg

Published
1996
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5. Two photon production of $\omega$ pairs

Author

Albrecht, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Mankel, R., Nau, A., Nowak, S., Ressing, D., Schroder, H., Schulz, H. D., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, Arnd, Lindner, A., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Wegener, D., Eckstein, P., Frankl, C., Graf, J., Schmidtler, M., Schramm, M., Schubert, Klaus R., Schwierz, R., Waldi, R., Reim, K., Wegener, H., Eckmann, R., Kuipers, H., Mai, O., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hupper, A., Knopfle, K. T., Spengler, J., Krieger, P., MacFarlane, D. B., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Schneider, M., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Podobnik, T., Zivko, T., Balagura, V., Barsuk, S., Belyaev, I., Chistov, R., Danilov, M., Eiges, V., Gershtein, L., Gershtein, Yu., Golutvin, A., Igonkina, O., Korolko, I., Kostina, G., Litvintsev, D., Pakhlov, P., Semenov, S., Snizhko, A., Tikhomirov, I., Zaitsev, Yu., and ARGUS Collaboration

Subjects
two-photon [exchange], ARGUS, DESY DORIS Stor, +omega%28783%29+pi%2B+pi-+pi0+positron+electron%22">electron positron --> omega(783) pi+ pi- pi0 positron electron, electron positron: inelastic scattering, inelastic scattering: electron positron, multiple production [pi], exclusive reaction [photon photon], +2pi%2B+2pi-+2pi0+positron+electron%22">electron positron --> 2pi+ 2pi- 2pi0 positron electron, electron positron [inelastic scattering], ddc:530, multiple production: pi, (pi+ pi- pi0): mass spectrum, channel cross section: energy dependence, electron positron [colliding beams], pair production: omega(783), exchange: two-photon, mass spectrum [(pi+ pi- pi0)], pair production [omega(783)], photon photon: exclusive reaction, pi: multiple production, +2omega%28783%29+positron+electron%22">electron positron --> 2omega(783) positron electron, inelastic scattering [electron positron], pi [multiple production], omega(783) [pair production], electron positron: colliding beams, mass spectrum: (pi+ pi- pi0), energy dependence [channel cross section], (pi+ pi- pi0) [mass spectrum], 9.4-10.6 GeV-cms, colliding beams: electron positron, colliding beams [electron positron], two-photon: exchange, omega(783): pair production, exchange [two-photon], experimental results
Abstract

11 pp. (1996)., A maximum likelihood analysis of ARGUS data on two-photon production of π + π + π 0 π 0 π − π − is presented. A small fraction of events is due to the production of omega pairs. The γγ → ωω cross section has its maximum value close to threshold.

Published
1996

6. Measurement of the semileptonic branching fractions of the $\mathrm{D^0}$ meson

Author

Albrecht, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Mankel, R., Nau, A., Nowak, S., Ressing, D., Schroder, H., Schulz, H. D., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, Arnd, Lindner, A., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Wegener, D., Eckstein, P., Frankl, C., Graf, J., Schmidtler, M., Schramm, M., Schubert, Klaus R., Schwierz, R., Waldi, R., Reim, K., Wegener, H., Eckmann, R., Kuipers, H., Mai, O., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hupper, A., Knopfle, K. T., Spengler, J., Krieger, P., MacFarlane, D. B., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Schneider, M., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Podobnik, T., Zivko, T., Balagura, V., Barsuk, S., Belyaev, I., Chistov, R., Danilov, M., Eiges, V., Gershtein, L., Gershtein, Yu., Golutvin, A., Igonkina, O., Korolko, I., Kostina, G., Litvintsev, D., Pakhlov, P., Semenov, S., Snizhko, A., Tikhomirov, I., Zaitsev, Yu., and ARGUS Collaboration

Subjects
annihilation: electron positron, ARGUS, DESY DORIS Stor, approx. 10.6 GeV-cms, semileptonic decay [D0], D*(2010): electroproduction, (pi): angular distribution, annihilation [electron positron], electron positron: annihilation, D*(2010): hadronic decay, D0: branching ratio, momentum spectrum: (lepton), D*(2010) [electroproduction], S032.10, branching ratio [D0], +muon%2B+neutrino%2Fmu+anything%22">D0 --> muon+ neutrino/mu anything, +D*%282010%29+anything%22">electron positron --> D*(2010) anything, (lepton) [momentum spectrum], D*(2010) [hadronic decay], angular distribution: (pi), ddc:530, D0 [semileptonic decay], electron positron [colliding beams], hadronic decay [D*(2010)], +positron+neutrino%2Fe+anything%22">D0 --> positron neutrino/e anything, electron positron [annihilation], +D0+pi%2B%22">D*(2010) --> D0 pi+, semileptonic decay: D0, S032.27, angular distribution [(pi)], electron positron: colliding beams, hadronic decay: D*(2010), D0: semileptonic decay, electroproduction [D*(2010)], (pi) [angular distribution], electroproduction: D*(2010), colliding beams: electron positron, colliding beams [electron positron], experimental results
Abstract

6 pp. (1996)., Using the ARGUS detector at the e + e − storage ring DORIS II, we have measured the semileptonic branching ratios of the D 0 meson to be Br ( D 0 → e + ν e X ) = (6.9 ± 0.3 ± 0.5) % and Br ( D 0 → μ + ν μ X ) = (6.0 ± 0.7 ± 1.2) %, and the semileptonic branching ratio of the charmed hadron mixture from e + e − annihilation around 10 GeV to be Br ( c → e + ν e X ) = (9.6 ± 0.4 ± 1.1) %.

Published
1996

7. A Search for lepton-flavor violating decays $\tau$ $\to$ e $\alpha$, $\tau$ $\to$ $\mu$ $\alpha$

Author

Albrecht, H., Hamacher, T., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, Arnd, Lindner, A., Schieber, M., Siegmund, T., Hofmann, R. P., Spaan, B., Thurn, H., Topfer, D., Wegener, D., Eckstein, P., Frankl, C., Graf, J., Schmidtler, M., Schramm, M., Schubert, Klaus R., Kirchhoff, T., Schwierz, R., Waldi, R., Reim, K., Wegener, H., Eckmann, R., Kuipers, H., Mai, O., Mundt, R., Oest, T., Reiner, R., Mankel, R., Schmidt-Parzefall, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hupper, A., Knopfle, K. T., Spengler, J., Krieger, P., MacFarlane, D. B., Nau, A., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Schneider, M., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Nowak, S., Podobnik, T., Zivko, T., Balagura, V., Barsuk, S., Belyaev, I., Chistov, R., Danilov, M., Eiges, V., Gershtein, L., Gershtein, Yu., Ressing, D., Golutvin, A., Igonkina, O., Korolko, I., Kostina, G., Litvintsev, D., Pakhlov, P., Semenov, S., Snizhko, A., Tikhomirov, I., Zaitsev, Yu., Schroder, H., ARGUS Collaboration, and Schulz, H. D.

Subjects
annihilation: electron positron, electroproduction: tau, ARGUS, tau: rare decay, annihilation [electron positron], +postulated+particle+lepton%22">tau --> postulated particle lepton, tau: branching ratio, momentum spectrum: (lepton), electroproduction [tau], (lepton) [momentum spectrum], mass: postulated particle, postulated particle: mass, electron positron [colliding beams], rare decay [tau], tau: pair production, neutrino: pair production, tau [pair production], electron positron: colliding beams, rare decay: tau, new particle: search for, tau [electroproduction], violation: flavor, mass [postulated particle], 9.4-10.6 GeV-cms, pair production [tau], +lepton+neutrino+antineutrino%22">tau --> lepton neutrino antineutrino, colliding beams [electron positron], tau [rare decay], upper limit, familon [postulated particle], neutrino [pair production], flavor [violation], DESY DORIS Stor, pair production [neutrino], S035.102, postulated particle: Majoron, electron positron: annihilation, S035.103, search for [new particle], postulated particle: familon, pair production: neutrino, Majoron [postulated particle], pair production: tau, ddc:530, S035.2, electron positron [annihilation], branching ratio [tau], Goldstone particle, postulated particle [mass], colliding beams: electron positron, tau: electroproduction, experimental results
Abstract

11 pp. (1995)., Lepton spectra in τ decays have been studied with the ARGUS detector at thee+e− storage ring DORIS II at DESY using the “pseudo-rest-frame” technique. We have improved upper limits for two-body τ-decays into a lepton and an unobservable particle.

Published
1995
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8. Tau decays into K* mesons

Author

Albrecht, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Mankel, R., Nau, A., Nowak, S., Schroder, H., Schulz, H. D., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, Arnd, Lindner, A., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Wegener, D., Eckstein, P., Schubert, Klaus R., Schwierz, R., Waldi, R., Reim, K., Wegener, H., Eckmann, R., Kuipers, H., Mai, O., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hupper, A., Knopfle, K. T., Spengler, J., Krieger, P., MacFarlane, D. B., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Frankl, C., Ressing, D., Schmidtler, M., Schneider, M., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Podobnik, T., Zivko, T., Balagura, V., Belyaev, I., Chechelnitsky, S., Danilov, M., Droutskoy, A., Gershtein, Yu., Golutvin, A., Korolko, I., Kostina, G., Litvintsev, D., Lubimov, V., Pakhlov, P., Semenov, S., Snizhko, A., Tikhomirov, I., Zaitsev, Yu., and ARGUS Collaboration

Subjects
S035.23, annihilation: electron positron, electroproduction: tau, ARGUS, DESY DORIS Stor, +K*%28892%29+K-+neutrino%2Ftau%22">tau- --> K*(892) K- neutrino/tau, semileptonic decay: tau, annihilation [electron positron], electron positron: annihilation, +K*%28892%29+neutrino%2Ftau+anything0%22">tau- --> K*(892) neutrino/tau anything0, tau- [semileptonic decay], electroproduction [tau], S035.205, pair production: tau, S035.207, S035.206, ddc:530, electron positron [colliding beams], tau-: semileptonic decay, electron positron [annihilation], tau: pair production, tau [pair production], K*(892), +K*%28892%29+pi-+neutrino%2Ftau%22">tau- --> K*(892) pi- neutrino/tau, electron positron: colliding beams, branching ratio [tau-], tau [electroproduction], 9.4-10.6 GeV-cms, pair production [tau], colliding beams: electron positron, tau: electroproduction, colliding beams [electron positron], semileptonic decay [tau-], tau-: branching ratio, experimental results
Abstract

9 pp. (1995)., Using the ARGUS detector at the storage ring DORIS II we have measured τ decays into three charged mesons containingK* mesons. Exploiting the good particle identification capabilities of the detector we have determined the following branching ratios:\(Br\left( {\tau ^ -\to \overline {K^{*0} } \pi ^ -v_\tau} \right) = \left( {0.25 \pm 0.10 \pm 0.05} \right)\% \),Br(τ−→K*0K−vτ)= (0.20±0.05±0.04)%, andBr(τ−→K*−X0vτ) =(1.15±0.15−0.18+0.13)%.

Published
1995

9. A determination of two Michel parameters in purely leptonic tau decays

Author

Albrecht, H., Ehrlichmann, H., Wurth, R., Hast, C., Kolanoski, H., Kosche, A., Lange, A., Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Hamacher, T., Thurn, H., Töpfer, D., Wegener, D., Bittner, M., Eckstein, P., Paulini, M., Reim, K., Wegener, H., Eckmann, R., Mundt, R., Hofmann, R. P., Oest, T., Reiner, R., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hüpper, A., Khan, S., Kirchhoff, A., Knöpfle, K. T., Seeger, M., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Nau, A., Patel, P. M., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., Van de Water, R. G., Yoon, T.-S., Reβing, D., Schmidtler, M., Schneider, M., Schubert, K. R., Nowak, S., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Živko, T., Balagura, V., Belyaev, I., Schröder, H., Chechelnitsky, S., Danilov, M., Droutskoy, A., Gershtein, Yu., Golutvin, A., Kostina, G., Litvintsev, D., Lubimov, V., Pakhlov, P., Ratnikov, F., Schulz, H. D., Semenov, S., Snizhko, A., Soloshenko, V., Tichomirov, I., Zaitsev, Yu., ARGUS Collaboration, and Walter, M.

Subjects
annihilation: electron positron, electroproduction: tau, correlation [momentum], ARGUS, DESY DORIS Stor, 10 GeV, annihilation [electron positron], leptonic decay [tau], electron positron: annihilation, (muon electron) [correlation], electroproduction [tau], pair production: tau, ddc:530, S035.2, electron positron [colliding beams], +muon+electron+4neutrino%22">tau+ tau- --> muon electron 4neutrino, S035.1, S035RHE, electron positron [annihilation], tau: pair production, leptonic decay: tau, tau [pair production], correlation: (muon electron), Michel parameter, momentum: correlation, S035RHM, electron positron: colliding beams, S035XI, tau [electroproduction], pair production [tau], colliding beams: electron positron, tau: electroproduction, tau: leptonic decay, colliding beams [electron positron], tau [leptonic decay], experimental results
Abstract

9 pp. (1993)., Using the ARGUS detector at the e+e− storage ring DORIS II, we have determined the Michel parameters ϱ and ξ of τ → μννandτ → eνν decays. From a data sample with 333 events/pb around s= 10GeV, we select 3230 events ǂe+e−→ τ+τ−→ (μ±μμ)(eǂvv) and determine ϱ from the e and μ momentum spectra and ξ from the correlations between e and μ momenta. For ϱ we obtain ϱτ→e = 0.79 ± 0.08 ± 0.06 and ϱτ→μ = 0.76 ± 0.08 in accordance with the V - A structure of the decays. The momentum correlations are only sensitive to the product ξτ→eξτ→μ. Setting ξτ→e = ξτ→μ, we obtain |ξτ| = 0.90 ± 0.15 ± 0.10 also in accordance with V - A. The updated decay fractions are B(τ →evv) = (17.5 ± 0.3 ± 0.5)% and B(τ → μvv) = (17.4 ± 0.3 ± 0.5)%.

Published
1993
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10. Inclusive production of charged pions, kaons and protons in υ(4S) decays

Author

Albrecht, H., Cronström, H. I., Schröder, H., Schulz, H. D., Walter, M., Wurth, R., Appuhn, R. D., Hast, C., Kolanoski, H., Lange, A., Lindner, A., Mankel, R., Ehrlichmann, H., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Töpfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Wegener, H., Hamacher, T., Mundt, R., Oest, T., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Hölscher, A., Hofmann, W., Hüpper, A., Hofmann, R. P., Khan, S., Knöpfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Kirchhoff, T., Patel, P. M., Prentice, J. D., Saull, P. R. B., Seidel, S. C., Tzamariudaki, K., Water, R. G., Yoon, T. -S., Reßing, D., Schmidtler, M., Schneider, M., Nau, A., Schubert, K. R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Živko, T., Jönsson, L., Nowak, S., Balagura, V., Belyaev, I., Danilov, M., Droutskoy, A., Golutvin, A., Gorelov, I., Kostina, G., Lubimov, V., Murat, P., Pakhlov, P., Reidenbach, M., Ratnikov, F., Semenov, S., Shibaev, V., Soloshenko, V., Tichomirov, I., Zaitsev, Yu., ARGUS Collaboration, and Reiner, R.

Subjects
annihilation: electron positron, S049.105, Upsilon(10570): electroproduction, ARGUS, Upsilon(10570) [electroproduction], DESY DORIS Stor, S049.108, annihilation [electron positron], electron positron: annihilation, momentum spectrum: (hadron), yield: (p K pi), 10.57 GeV-cms, Upsilon(10570): decay modes, (p K pi) [yield], hadron: multiple production, decay modes [Upsilon(10570)], ddc:530, electron positron [colliding beams], electroproduction: Upsilon(10570), hadron [multiple production], multiple production [hadron], S049.220, tables, electron positron [annihilation], hadron: multiplicity, multiplicity [hadron], (hadron) [momentum spectrum], electron positron: colliding beams, multiple production: hadron, colliding beams: electron positron, electroproduction [Upsilon(10570)], colliding beams [electron positron], decay modes: Upsilon(10570), Upsilon(10570) [decay modes], experimental results, S049.132
Abstract

19 pp. (1993)., Using the detector ARGUS at the $e^+e^−$ storage ring DORIS II, we have investigated inclusive momentum spectra of charged pions, kaons, and protons from decays of the υ(4S) meson. The kaon spectra have been measured in two independent ways, by coherently exploiting the detector's particle identification capabilities, and by detecting decays in-flight. The extracted mean multiplicities for charged hadrons are 7.17±0.05±0.14 pions, 1.56±0.03±0.05 kaons and 0.110±0.010±0.007 protons per υ(4S) decay, where pions and protons fromKso and Δ decays have been subtracted.

Published
1993
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11. Observation of a new charmed baryon

Author

Albrecht, H., Ehrlichmann, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Nau, A., Nowak, S., Schröder, H., Schulz, H. D., Walter, M., Wurth, R., Hast, C., Kapitza, H., Kolanoski, H., Kosche, A., Lange, A., Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Töpfer, D., Wegener, D., Bittner, M., Eckstein, P., Paulini, M., Reim, K., Wegener, H., Eckmann, R., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hüpper, A., Khan, S., Knöpfle, K. T., Seeger, M., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Krieger, P., MacFarlane, D. B., Patel, P. M., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., Van de Water, R. G., Yoon, T.-S., Reβing, D., Schmidtler, M., Schneider, M., Schubert, K. R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Živko, T., Balagura, V., Belyaev, I., Chechelnitsky, S., Danilov, M., Droutskoy, A., Gershtein, Yu., Golutvin, A., Korolko, I., Kostina, G., Litvintsev, D., Lubimov, V., Pakhlov, P., Semenov, S., Snizhko, A., Tichomirov, I., Zaitsev, Yu., and ARGUS Collaboration

Subjects
B102.4, annihilation: electron positron, ARGUS, DESY DORIS Stor, charmed baryon: mass, annihilation [electron positron], electroproduction [charmed baryon], electron positron: annihilation, charmed baryon [electroproduction], width [charmed baryon], (2626) [charmed baryon], hadronic decay: charmed baryon, channel cross section: branching ratio, +Lambda%2Fc%2B+pi%2B+pi%22">charmed baryon --> Lambda/c+ pi+ pi, ddc:530, electron positron [colliding beams], (Lambda/c+ pi+ pi-) [mass spectrum], charmed baryon: width, electron positron [annihilation], charmed baryon [hadronic decay], branching ratio [channel cross section], charmed baryon: (2626), postulated particle: Lambda/c, (Lambda/c+ pi+ pi-): mass spectrum, charmed baryon [mass], mass: charmed baryon, mass spectrum: (Lambda/c+ pi+ pi-), approx. 10.57 GeV, electroproduction: charmed baryon, electron positron: colliding beams, hadronic decay [charmed baryon], charmed baryon: hadronic decay, mass [charmed baryon], charmed baryon: electroproduction, B102M, colliding beams: electron positron, Lambda/c* [postulated particle], colliding beams [electron positron], B102W, mass spectrum [(Lambda/c+ pi+ pi-)], B102.1, B102.2, experimental results, B102.3
Abstract

8 pp. (1993)., Using the ARGUS detector at the e+e− storage ring DORIS II at DESY, we have observed a new charmed baryon state in the channel Λc+π+π−. (All references to a specific charged state also imply the charge conjugate state.) The mass of this state was measured to be (2626.6 ± 0.5 ± 1.5) MeV/c2. The product of the production cross section and branching ratio for this channel was determined to be (11.5 ± 2.5 ± 3.0) pb, and the natural width estimated to be smaller than 3.2 MeV/c2 at 90% CL.

Published
1993

12. Analysis of the decay $\tau^- \to \pi^-\pi^- \pi^+v_\tau$ and determination of thea 1(1260) resonance parameters

Author

Albrecht, H., Ehrlichmann, H., Wurth, R., Appuhn, R. D., Hast, C., Kolanoski, H., Lange, A., Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Hamacher, T., Thurn, H., Töpfer, D., Walther, A., Wegener, D., Bittner, M., Eckstein, P., Paulini, M., Reim, K., Wegener, H., Mundt, R., Hofmann, R. P., Oest, T., Reimer, R., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hüpper, A., Khan, S., Kirchhoff, T., Knöpfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Patel, P. M., Nau, A., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., Water, R. G., Yoon, T. -S., Reßing, D., Schmidtler, M., Schneider, M., Schubert, K. R., Strahl, K., Nowak, S., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Živko, T., Balagura, V., Belyaev, I., Chechelnitsky, S., Schröder, H., Danilov, M., Droutskoy, A., Gershtein, Yu., Golutvin, A., Gorelov, I., Kostina, G., Lubimov, V., Pakhlov, P., Ratnikov, F., Semenov, S., Schulz, H. D., Shibaev, V., Soloshenko, V., Tichomirov, I., Zaitsev, Yu., ARGUS Collaboration, and Walter, M.

Subjects
annihilation: electron positron, electroproduction: tau, ARGUS, Dalitz plot, semileptonic decay: tau, annihilation [electron positron], M010DS, tau- [semileptonic decay], mass spectrum: ((n)pi), a1(1260): width, a1(1260) [hadronic decay], electroproduction [tau], +pi%2B+2pi-+neutrino%2Ftau%22">tau- --> pi+ 2pi- neutrino/tau, mass [a1(1260)], electron positron [colliding beams], +rho%28770%290+pi%22">a1(1260) --> rho(770)0 pi, decay: asymmetry, a1(1260): mass, a1(1260) [mass], tau: pair production, hadronic decay: a1(1260), tau [pair production], electron positron: colliding beams, asymmetry: decay, tau [electroproduction], 9.4-10.6 GeV-cms, +a1%281260%29+neutrino%2Ftau%22">tau- --> a1(1260) neutrino/tau, pair production [tau], asymmetry [decay], width [a1(1260)], colliding beams [electron positron], a1(1260): hadronic decay, semileptonic decay [tau-], tau-: branching ratio, M010M, DESY DORIS Stor, partial wave, S035XA1, mass: a1(1260), electron positron: annihilation, M010W, ((n)pi): mass spectrum, parity: violation, S035XAL, pair production: tau, ddc:530, decay [asymmetry], parity [violation], tau-: semileptonic decay, electron positron [annihilation], violation: parity, hadronic decay [a1(1260)], branching ratio [tau-], ((n)pi) [mass spectrum], mass spectrum [((n)pi)], colliding beams: electron positron, tau: electroproduction, violation [parity], experimental results
Abstract

22 pp. (1993)., Using the ARGUS detector at the DORIS II $e^+e^−$ storage ring we have studied the three-pion hadronic final state in the decay $τ^- → π^-π^-π^+v_τ$. From about 7500 events we conclude that the three-pion system is dominated by the $J^P=1^+$ resonancea1 (1260) decaying preferentially via $ρ^0π^-$. Our data restrict a possible ρπ contribution of three-pion states without intermediate resonances to less than 6% at 95% CL. Fitting a model by Isgur et al. to the data yieldsma1=(1.211±0.007±0.0500.0)GeV/c$^2$ and $Γ$a1=(0.446±0.0021±0.1400.0)GeV/c$^2$. The second errors reflect the model dependence of the result. This is the currently most significant determination of thea1 resonance parameters. The ratio ofS- and D-wave amplitudes for the ρ0π- intermediate state of thea1− decay at the nominala1− mass was found to beD/S=−0.11±0.02. Using thisD/S ratio we update our former measurement of the parity violating asymmetry parameterγ $AV=2gAgV/(g^2_A+g^2_V)$ to 1.25±0.23±0.080.15. The branching ratio of the decay $τ^- → π^-π^-π^+v_τ$ is determined to be Br($τ^- → π^-π^-π^+v_τ$)=(6.8±0.1±0.5)%.

Published
1993
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13. Investigation of the decays $\bar B^0$$\to D^{*+}$$\ell^- \bar v$ and $\bar B \to D^{**}$$\ell^-\bar v$

Author

Albrecht, H., Ehrlichmann, H., Wurth, R., Appuhn, R. D., Hast, C., Kolanoski, H., Lange, Arnd, Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Hamacher, T., Thurn, H., Topfer, D., Walther, A., Wegener, D., Bittner, M., Eckstein, P., Paulini, M., Reim, K., Wegener, H., Mundt, R., Hofmann, R. P., Oest, T., Reiner, R., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hupper, A., Khan, S., Kirchhoff, T., Knopfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Patel, P. M., Nau, A., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Ressing, D., Schmidtler, M., Schneider, M., Schubert, Klaus R., Strahl, K., Nowak, S., Waldi, R., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Podobnik, T., Zivko, T., Balagura, V., Belyaev, I., Chechelnitsky, S., Schroder, H., Danilov, M., Droutskoy, A., Gershtein, Yu., Golutvin, A., Gorelov, I., Kostina, G., Lyubimov, V., Pakhlov, P., Ratnikov, F., Semenov, S., Schulz, H. D., Shibaev, V., Soloshenko, V., Tikhomirov, I., Zaitsev, Yu., ARGUS Collaboration, and Walter, M.

Subjects
Upsilon(9460) [electroproduction], ARGUS, DESY DORIS Stor, anti-B0 [semileptonic decay], annihilation [electron positron], 10.57 GeV-cms, B [pair production], +D1%282420%29+lepton+neutrino%22">anti-B0 --> D1(2420) lepton neutrino, ddc:530, electron positron [colliding beams], +D*%282010%29+pi%22">D1(2420) --> D*(2010) pi, nonleptonic decay [D*(2010)], electron positron [annihilation], D*(2010) [polarization], nonleptonic decay [D*2(2460)], CKM matrix matrix, +D0+pi%2B%22">D*(2010) --> D0 pi+, +D*%282010%29+pi%22">D*2(2460) --> D*(2010) pi, pair production [B], branching ratio [anti-B0], asymmetry [angular distribution], D*(2010) [nonleptonic decay], polarization [D*(2010)], D*2(2460) [nonleptonic decay], +D*%282010%29+lepton+neutrino%22">anti-B0 --> D*(2010) lepton neutrino, semileptonic decay [anti-B0], colliding beams [electron positron], D1(2420) [nonleptonic decay], electroproduction [Upsilon(9460)], +D*2%282460%29+lepton+neutrino%22">anti-B0 --> D*2(2460) lepton neutrino, nonleptonic decay [D1(2420)], angular distribution [asymmetry], experimental results
Published
1993
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14. Search for rare B meson decays into $D_ s^+$ mesons

Author

Albrecht, H., Ehrlichmann, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Nau, A., Nowak, S., Schröder, H., Schulz, H. D., Walter, M., Wurth, R., Appuhn, R. D., Hast, C., Kolanoski, H., Lange, A., Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Töpfer, D., Walther, A., Wegener, D., Bittner, M., Eckstein, P., Paulini, M. G., Reim, K., Wegener, H., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hüpper, A., Khan, S., Knöpfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Patel, P. M., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., Water, R. G., Yoon, T. -S., Reßing, D., Schmidtler, M., Schneider, M., Schubert, K. R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Živko, T., Balagura, V., Belyaev, I., Chechelnitsky, S., Danilov, M., Droutskoy, A., Gershtein, Yu., Golutvin, A., Gorelov, I., Kostina, G., Lubimov, V., Pakhlov, P., Ratnikov, F., Semenov, S., Shibaev, V., Soloshenko, V., Tichomirov, I., Zaitsev, Yu., and ARGUS Collaboration

Subjects
S041.194, annihilation: electron positron, +D%2Fs%2B+lepton-+anything%22">B --> D/s+ lepton- anything, S041.193, rare decay [B], S041.196, ARGUS, S041.195, S041.198, S041.197, correction: (D/s+ lepton-), S041.199, annihilation [electron positron], W: exchange, D/s+ [production], S042.51, S042.52, S042.110, S042.111, S042.112, S042.113, S042.114, B: branching ratio, electron positron [colliding beams], S042.115, S042.116, electroproduction: Upsilon(10570), S042.117, S042.118, S042.119, B: pair production, (0charmed particle): final state, S041.200, approx. 10.57 GeV, +D%2Fs%2B+meson%22">B --> D/s+ meson, electron positron: colliding beams, pair production [B], production: D/s+, S049.37, S049.36, S042.120, (0charmed particle) [final state], electroproduction [Upsilon(10570)], colliding beams [electron positron], S041.33, S041.32, S041.31, upper limit, production [D/s+], S041.35, D/s+: production, final state [(0charmed particle)], S041.34, S049.38, Upsilon(10570): electroproduction, Upsilon(10570) [electroproduction], DESY DORIS Stor, electron positron: annihilation, branching ratio [B], final state: (0charmed particle), B [pair production], pair production: B, ddc:530, B: rare decay, exchange: W, electron positron [annihilation], B [rare decay], S041.187, S041.186, S041.188, W [exchange], (D/s+ lepton-) [correction], colliding beams: electron positron, rare decay: B, S041.190, S041.192, exchange [W], experimental results, S042.108
Abstract

16 pp. (1993)., A search has been performed for rareB meson decays intoDs− mesons arising fromb→u transitions,W exchange modes,B+ annihilation processes, and decays where theDs+ is not produced via aW→c s¯s¯ quark pair coupling, using the ARGUS detector operating on the Ψ(4S) resonance at thee+e− storage ring DORIS II. Upper limits for individual decay modes are obtained. In addition, from a study ofDs+ℓ- correlations an upper limit of BR (B→Ds+ℓ-X) (90% CL) is determined.

Published
1993

15. A partial wave analysis of the decay $D^0 \to K_S^0 \pi^+\pi^−$

Author

Albrecht, H., Ehrlichmann, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Nau, A., Nowak, S., Schröder, H., Schulz, H. D., Walter, M., Wurth, R., Appuhn, R. D., Hast, C., Kolanoski, H., Lange, A., Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Töpfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Wegener, H., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Hüpper, A., Khan, S., Knöpfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Patel, P. M., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., Van de Water, R. G., Yoon, T.-S., Reßing, D., Schmidtler, M., Schneider, M., Schubert, K. R., Strahl, K., Tamminga, J., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Živko, T., Balagura, V., Belyaev, I., Danilov, M., Droutskoy, A., Golutvin, A., Gorelov, I., Kostina, G., Lubimov, V., Murat, P., Pakhlov, P., Ratnikov, F., Semenov, S., Shibaev, V., Soloshenko, V., Tichomirov, I., Zaitsev, Yu., and ARGUS Collaboration

Subjects
K*0(1430), annihilation: electron positron, ARGUS, Dalitz plot, +f0%28980%29+anti-K0%22">D0 --> f0(980) anti-K0, D*(2010): electroproduction, S032.17, annihilation [electron positron], nonleptonic decay: D*(2010), +f2%281270%29+anti-K0%22">D0 --> f2(1270) anti-K0, approx. 10 GeV-cms, electron positron [colliding beams], nonleptonic decay [D*(2010)], S032.3, nonleptonic decay: D0, +K0%28S%29+pi%2B+pi%22">D0 --> K0(S) pi+ pi, S032.81, +K*2%281430%29+pi%2B%22">D0 --> K*2(1430) pi+, electron positron: colliding beams, D*(2010): nonleptonic decay, electroproduction [D*(2010)], electroproduction: D*(2010), D*(2010) [cascade decay], f0(1400), S032.199, cascade decay: D*(2010), D*(2010) [nonleptonic decay], +f0%281400%29+anti-K0%22">D0 --> f0(1400) anti-K0, colliding beams [electron positron], D*(2010): cascade decay, cascade decay [D*(2010)], nonleptonic decay [D0], DESY DORIS Stor, +K*0%281430%29+pi%2B%22">D0 --> K*0(1430) pi+, f0(980), electron positron: annihilation, D0: branching ratio, D*(2010) [electroproduction], branching ratio [D0], S032.201, S032.200, D0 [nonleptonic decay], S032.203, ddc:530, K*2(1430), electron positron [annihilation], D0: nonleptonic decay, +D0+pi%2B%22">D*(2010) --> D0 pi+, partial wave analysis, f2(1270), colliding beams: electron positron, experimental results
Abstract

13 pp. (1993)., Using the ARGUS detector at the DORIS-II electron-positron storage ring at DESY, we have investigated the exclusive decay $D∗+→ D^0 π^+, D^0→ K_S^0 π^+π^−$. From a partial wave analysis of the $K_S^0 π+^π^−$ system we find that (71.8± 4.2 ± 3.0)% are $D^0→ K∗^−π^+$ and (22.7 ± 3.2 ± 0.9)% are $D^0→K^0_ϱ 0$ with a relative phase of (−137 ± 7 ± 3)° between the channels. The remaining fraction can be described by several channels involving excited resonances, but not by a three-body phase space decay, thus giving first evidence for D0 decays into $K^0_∗(1430)^−π^+,K^0f^0(1975), K^0f^2(1270), and K^0f^0(1400)$.

Published
1993

16. Inclusive production of $\eta$′ (958) andf o (975) mesons in the υ energy region

Author

Albrecht, H., Ehrlichmann, H., Wurth, R., Appuhn, R. D., Hast, C., Kolanoski, H., Kosche, A., Lange, A., Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Hamacher, T., Spaan, B., Thurn, H., Töpfer, D., Walther, A., Wegener, D., Zimmermann, A., Bittner, M., Eckstein, P., Paulini, M., Reim, K., Hofmann, R. P., Wegener, H., Mundt, R., Oest, T., Reiner, R., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Hofmann, W., Kirchhoff, T., Hüpper, A., Khan, S., Knöpfle, K. T., Seeger, M., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Nau, A., Krieger, P., MacFarlane, D. B., Patel, P. M., Prentice, J. D., Saull, P. R. B., Tzamariudaki, K., Water, R. G., Yoon, T. -S., Reßing, D., Schmidtler, M., Nowack, S., Schneider, M., Schubert, K. R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Živko, T., Schröder, H., Balagura, V., Belyaev, I., Chechelnitsky, S., Danilov, M., Droutskoy, A., Gershtein, Yu., Golutvin, A., Gorelov, I., Kostina, G., Lubimov, V., Schulz, H. D., Pakhlov, P., Ratnikov, F., Semenov, S., Shibaev, V., Soloshenko, V., Tichomirov, I., Zaitsev, Yu., ARGUS Collaboration, and Walter, M.

Subjects
+f0%28980%29+anything%22">electron positron --> f0(980) anything, annihilation: electron positron, +pi%2B+pi%22">f0(980) --> pi+ pi, ARGUS, model [f0(980)], annihilation [electron positron], f0(980): model, eta(958) [electroproduction], +eta%28958%29+anything%22">electron positron --> eta(958) anything, f0(980): electroproduction, yield: (f0(975) rho(770)0), approx. 10 GeV-cms, electron positron [colliding beams], inclusive reaction [electron positron], (eta(958) eta) [yield], electroproduction [upsilon mesons], upsilon mesons: decay modes, (f0(975) rho(770)0) [yield], f0(980) [electroproduction], electroproduction: upsilon mesons, electron positron: colliding beams, electroproduction: eta(958), colliding beams [electron positron], electroproduction: f0(980), meson [direct production], DESY DORIS Stor, energy spectrum, mixing angle [pseudoscalar meson], electron positron: annihilation, electroproduction [eta(958)], decay modes: upsilon mesons, yield: (eta(958) eta), ddc:530, upsilon mesons [decay modes], pseudoscalar meson: mixing angle, meson: direct production, electron positron [annihilation], upsilon mesons: electroproduction, upsilon mesons [electroproduction], electron positron: inclusive reaction, eta(958): electroproduction, direct production: meson, direct production [meson], colliding beams: electron positron, electroproduction [f0(980)], +eta+pi%2B+pi%22">eta(958) --> eta pi+ pi, decay modes [upsilon mesons], experimental results
Abstract

19 pp. (1993)., The inclusive production cross sections of η′ (958) andfo (975) mesons are measured ine+e− annihilation in the nonresonant continuum around s√=10s=10 GeV and in decays of the υ resonances using the ARGUS detector. For η′ (958) mesons, a production ratio of η′ (958)/ηdir=0.35±0.24, with ηdir=η−BR(η′→ηX)·η′, is determined in direct υ(1S) decays, which can be partially explained by the pseudoscalar singlet/octet mixing. Forfo(975) production, we obtain a production ratio offo(975)/p(770)°=0.17±0.030 in direct υ(1S) decays. In its production features, thefo(975) behaves like an ordinary meson, though aK K¯K¯ molecule nature cannot be excluded. The substantial production yield of thefo(975) meson demonstrates the important effect of feeddown from mesons beyond the basic multiples on pseudoscalar and vector meson production

Published
1993
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17. Search for charm production in direct decays of the $\Upsilon$(1S) resonance

Author

Albrecht, H., Ehrlichmann, H., Schulz, H. D., Walter, M., Wurth, R., Appuhn, R. D., Hast, C., Herrera, G., Kolanoski, H., Lange, Arnd, Lindner, A., Mankel, R., Hamacher, T., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Wegener, H., Kruger, A., Mundt, R., Oest, T., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Holscher, A., Hofmann, W., Hupper, A., Nau, A., Khan, S., Knopfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Nippe, A., Patel, P. M., Prentice, J. D., Saull, P. R. B., Seidel, S. C., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Ressing, D., Schmidtler, M., Schneider, M., Nowak, S., Schubert, Klaus R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Podobnik, T., Zivko, T., Cronstrom, H. I., Reidenbach, M., Jonsson, L., Balagura, V., Belyaev, I., Danilov, M., Droutskoy, A., Golutvin, A., Gorelov, I., Kostina, G., Lyubimov, V., Murat, P., Schafer, M., Pakhlov, P., Ratnikov, F., Semenov, S., Shibaev, V., Soloshenko, V., Tikhomirov, I., Zaitsev, Yu., ARGUS Collaboration, and Schroder, H.

Subjects
+3gluon%22">Upsilon(9460) --> 3gluon, J/psi(3100), Upsilon(9460) [electroproduction], fusion [gluon gluon], ARGUS, DESY DORIS Stor, decay modes [Upsilon(9460)], annihilation [electron positron], direct production [lepton], (D0 pi+) [mass spectrum], Upsilon(9460) [decay modes], decay [charmed particle], vacuum polarization, +J%2Fpsi%283100%29+anything%22">Upsilon(9460) --> J/psi(3100) anything, ddc:530, electron positron [colliding beams], electron positron [annihilation], branching ratio [Upsilon(9460)], 9.46 GeV-cms, D*(2010), +D*%282010%29+anything%22">Upsilon(9460) --> D*(2010) anything, charmed particle [decay], mass spectrum [(positron electron)], colliding beams [electron positron], electroproduction [Upsilon(9460)], (positron electron) [mass spectrum], mass spectrum [(D0 pi+)], lepton [direct production], upper limit, experimental results
Published
1992
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18. A New determination of the $B^0$ - $\bar{B}^0$ oscillation strength

Author

Albrecht, H., Ehrlichmann, H., Hamacher, T., Kruger, A., Nau, A., Nippe, A., Reidenbach, M., Schafer, M., Schroder, H., Schulz, H. D., Sefkow, F., Wurth, R., Appuhn, R. D., Hast, C., Herrera, G., Kolanoski, H., Lange, Arnd, Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Volland, U., Wegener, H., Mundt, R., Oest, T., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ball, S., Gabriel, J. C., Geyer, C., Holscher, A., Hofmann, W., Holzer, B., Khan, S., Knopfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Kapitza, H., Krieger, P., Kutschke, Robert K., MacFarlane, D. B., Orr, R. S., Patel, P. M., Prentice, J. D., Seidel, S. C., Tsipolitis, G., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Ressing, D., Schael, S., Schubert, Klaus R., Strahl, K., Waldi, R., Weseler, S., Bostjancic, B., Kernel, G., Krizan, P., Kriznic, E., Podobnik, T., Zivko, T., Cronstrom, H. I., Jonsson, L., Balagura, V., Danilov, M., Droutskoy, A., Fominykh, B., Golutvin, A., Gorelov, I., Lyubimov, V., Pakhlov, P., Ratnikov, F., Rostovtsev, A., Semenov, A., Semenov, S., Shevchenko, V., Soloshenko, V., Tikhomirov, I., Zaitsev, Yu., Childers, R., and Darden, C. W.

Subjects
annihilation: electron positron, Upsilon(10570): electroproduction, (D*(2010) lepton): final state, ARGUS, pair production: B0, B0 anti-B0: oscillation, DESY DORIS Stor, dilepton: final state, charge correlation, CKM matrix matrix, electron positron: colliding beams, semileptonic decay: B0, electron positron: annihilation, final state: dilepton, final state: (anti-B0 lepton), B0: pair production, 10.57 GeV-cms, colliding beams: electron positron, (anti-B0 lepton): final state, B0: semileptonic decay, electroproduction: Upsilon(10570), final state: (D*(2010) lepton), experimental results
Published
1992
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19. Search for neutrinoless $\tau$ decays

Author

Albrecht, H., Ehrlichmann, H., Schulz, H. D., Walter, M., Wurth, R., Appuhn, R. D., Hast, C., Herrera, G., Kolanoski, H., Lange, Arnd, Lindner, A., Mankel, R., Hamacher, T., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Wegener, H., Kruger, A., Mundt, R., Oest, T., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Holscher, A., Hofmann, W., Hupper, A., Nau, A., Khan, S., Knopfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Nippe, A., Patel, P. M., Prentice, J. D., Saull, P. R. B., Seidel, S. C., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Ressing, D., Schmidtler, M., Schneider, M., Nowak, S., Schubert, Klaus R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Podobnik, T., Zivko, T., Cronstrom, H. I., Reidenbach, M., Jonsson, L., Balagura, V., Belyaev, I., Danilov, M., Droutskoy, A., Golutvin, A., Gorelov, I., Kostina, G., Lyubimov, V., Murat, P., Schafer, M., Pakhlov, P., Ratnikov, F., Semenov, S., Shibaev, V., Soloshenko, V., Tikhomirov, I., Zaitsev, Yu., ARGUS Collaboration, and Schroder, H.

Subjects
ARGUS, DESY DORIS Stor, annihilation [electron positron], (0neutrino) [final state], electroproduction [tau], violation [baryon number], +3lepton%22">tau- --> 3lepton, ddc:530, violation [lepton number], electron positron [colliding beams], electron positron [annihilation], +anti-p+photon%22">tau- --> anti-p photon, +meson+lepton%22">tau- --> meson lepton, tau [pair production], final state [(0neutrino)], branching ratio [tau], +anti-p+eta%22">tau- --> anti-p eta, tau [electroproduction], 9.4-10.6 GeV-cms, pair production [tau], decay modes [tau], +anti-p+pi0%22">tau- --> anti-p pi0, +lepton+photon%22">tau- --> lepton photon, colliding beams [electron positron], tau [decay modes], upper limit, +2meson+lepton%22">tau- --> 2meson lepton, experimental results
Published
1992
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20. New results on $\mathrm{D^0}$ decays

Author

Albrecht, H., Cronström, H. I., Ehrlichmann, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Nau, A., Nowak, S., Reidenbach, M., Reiner, R., Schröder, H., Schulz, H. D., Walter, M., Wurth, R., Appuhn, R. D., Hast, C., Kolanoski, H., Lange, A., Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Töpfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Wegener, H., Mundt, R., Oest, T., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Hölscher, A., Hofmann, W., Hüpper, A., Khan, S., Knöpfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Patel, P. M., Prentice, J. D., Saull, P. R. B., Seidel, S. C., Tzamariudaki, K., Water, R. G., Yoon, T. -S., Reßing, D., Schmidtler, M., Schneider, M., Schubert, K. R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Živko, T., Jönsson, L., Balagura, V., Belyaev, I., Danilov, M., Droutskoy, A., Golutvin, A., Gorelov, I., Kostina, G., Lubimov, V., Murat, P., Pakhlov, P., Ratnikov, F., Semenov, A., Semenov, S., Shibaev, V., Soloshenko, V., Tichomirov, I., Zaitsev, Yu., and ARGUS Collaboration

Subjects
annihilation: electron positron, S032.97, ARGUS, S032.9, annihilation [electron positron], +omega%28783%29+anti-K0%22">D0 --> omega(783) anti-K0, +K*%28892%29+omega%28783%29%22">D0 --> K*(892) omega(783), S032.57, decay modes [D0], decay modes: D0, S032.8, charmed meson: pair production, electron positron [colliding beams], S032.143, S032.187, +omega%28783%29+K-+pi%2B%22">D0 --> omega(783) K- pi+, S032.1, +K-+2pi%2B+pi-+pi0%22">D0 --> K- 2pi+ pi- pi0, electroproduction [upsilon mesons], S032.3, nonleptonic decay: D0, S032.41, D0: decay modes, pair production [charmed meson], +anti-K0+pi%2B+pi%22">D0 --> anti-K0 pi+ pi, electroproduction: upsilon mesons, electron positron: colliding beams, +eta%28958%29+anti-K0%22">D0 --> eta(958) anti-K0, 9.4-10.6 GeV-cms, colliding beams [electron positron], D0 [decay modes], +K-+pi%2B+pi0%22">D0 --> K- pi+ pi0, S032.197, +anti-K0+2pi%2B+2pi%22">D0 --> anti-K0 2pi+ 2pi, nonleptonic decay [D0], +anti-K0+pi%2B+pi-+pi0%22">D0 --> anti-K0 pi+ pi- pi0, DESY DORIS Stor, electron positron: annihilation, D0: branching ratio, branching ratio [D0], +anti-K0+pi0%22">D0 --> anti-K0 pi0, D0 [nonleptonic decay], ddc:530, charmed meson [pair production], electron positron [annihilation], S032.64, upsilon mesons: electroproduction, pair production: charmed meson, D0: nonleptonic decay, upsilon mesons [electroproduction], +K-+pi%2B%22">D0 --> K- pi+, colliding beams: electron positron, experimental results
Abstract

18 pp. (1992)., Using the ARGUS detector at the $e^+e^−$ storage ring DORIS II, we have studied nine decay modes of theD0 meson. In addition to a higher-precision determination of the branching ratios for these modes, several new channels, the decays $D^0 \to \bar K^0 \eta ',D^0 \to \bar K^{*0} \omega$ and $D^0 \to \bar K\pi ^ + \omega$ , have been observed for the first time.

Published
1992

21. Measurement of inclusive baryon production in B meson decays

Author

Albrecht, H., Cronström, H. I., Ehrlichmann, H., Hamacher, T., Hofmann, R. P., Kirchhoff, T., Nau, A., Nowak, S., Reidenbach, M., Reiner, R., Schröder, H., Schulz, H. D., Walter, M., Wurth, R., Appuhn, R. D., Hast, C., Kolanoski, H., Lange, A., Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Töpfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Wegener, H., Mundt, R., Oest, T., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Hölscher, A., Hofmann, W., Hüpper, A., Khan, S., Knöpfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Patel, P. M., Prentice, J. D., Saull, P. R. B., Seidel, S. C., Tsamariudaki, K., Water, R. G., Yoon, T. -S., Reßing, D., Śchmidtler, M., Schneider, M., Schubert, K. R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Križan, P., Križnič, E., Podobnik, T., Zivko, T., Jönsson, L., Balagura, V., Belyaev, I., Danilov, M., Droutskoy, A., Golutvin, A., Gorelov, I., Kostina, G., Lubimov, V., Murat, P., Pakhlov, P., Ratnikov, F., Semenov, S., Shibaev, V., Soloshenko, V., Tichomirov, I., Zaitsev, Yu., and ARGUS Collaboration

Subjects
annihilation: electron positron, ARGUS, correlation: (baryon antibaryon), +Lambda+anything%22">B --> Lambda anything, annihilation [electron positron], (baryon) [momentum spectrum], 10.57 GeV-cms, momentum spectrum: (baryon), +p+anything%22">B --> p anything, B: branching ratio, electron positron [colliding beams], electroproduction: Upsilon(10570), B: pair production, branching ratio [Lambda/c+], baryon: production, electron positron: colliding beams, (baryon antibaryon) [correlation], decay modes [B], pair production [B], yield: (Lambda p), (baryon lepton) [correlation], baryon [production], B: decay modes, Lambda/c+: branching ratio, electroproduction [Upsilon(10570)], colliding beams [electron positron], (Lambda p) [yield], S049.134, Upsilon(10570): electroproduction, production: baryon, Upsilon(10570) [electroproduction], DESY DORIS Stor, +p+K%2B+pi%22">Lambda/c+ --> p K+ pi, electron positron: annihilation, branching ratio [B], +Lambda%2Fc%2B+anything%22">B --> Lambda/c+ anything, B [pair production], pair production: B, ddc:530, electron positron [annihilation], B [decay modes], correlation: (baryon lepton), colliding beams: electron positron, decay modes: B, production [baryon], experimental results
Abstract

17 pp. (1992)., Using the ARGUS detector at the $e^+e^−$ storage ring DORIS II at DESY, we have studiedB meson decays into baryonsp and Λ. From the simultaneous analysis ofp and Λ yields,pp¯ and Λp¯ correlations, and various lepton-baryon and lepton-baryon-antibaryon correlations the inclusive branching ratio is found to be BR (B→baryons)=(6.8±0.5±0.3)%.

Published
1992

22. A New determination of the $B^0$ - $\bar{B}^0$ oscillation strength

Author

Albrecht, H., Ehrlichmann, H., Sefkow, F., Wurth, R., Appuhn, R. D., Hast, C., Herrera, G., Kolanoski, H., Lange, Arnd, Lindner, A., Mankel, R., Schieber, M., Hamacher, T., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Volland, U., Wegener, H., Kruger, A., Mundt, R., Oest, T., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ball, S., Gabriel, J. C., Geyer, C., Holscher, A., Nau, A., Hofmann, W., Holzer, B., Khan, S., Knopfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Kapitza, H., Krieger, P., Nippe, A., Kutschke, Robert K., MacFarlane, D. B., Orr, R. S., Patel, P. M., Prentice, J. D., Seidel, S. C., Tsipolitis, G., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Reidenbach, M., Ressing, D., Schael, S., Schubert, Klaus R., Strahl, K., Waldi, R., Weseler, S., Bostjancic, B., Kernel, G., Krizan, P., Kriznic, E., Schafer, M., Podobnik, T., Zivko, T., Cronstrom, H. I., Jonsson, L., Balagura, V., Danilov, M., Droutskoy, A., Fominykh, B., Golutvin, A., Gorelov, I., Schroder, H., Lyubimov, V., Pakhlov, P., Ratnikov, F., Rostovtsev, A., Semenov, A., Semenov, S., Shevchenko, V., Soloshenko, V., Tikhomirov, I., Zaitsev, Yu., Schulz, H. D., Childers, R., Darden, C. W., and ARGUS Collaboration

Subjects
electron positron [annihilation], ARGUS, Upsilon(10570) [electroproduction], semileptonic decay [B0], DESY DORIS Stor, charge correlation, CKM matrix matrix, dilepton [final state], annihilation [electron positron], oscillation [B0 anti-B0], (D*(2010) lepton) [final state], final state [(D*(2010) lepton)], B0 [pair production], 10.57 GeV-cms, final state [dilepton], (anti-B0 lepton) [final state], electroproduction [Upsilon(10570)], colliding beams [electron positron], pair production [B0], ddc:530, final state [(anti-B0 lepton)], electron positron [colliding beams], B0 [semileptonic decay], experimental results
Published
1992
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23. Search for neutrinoless $\tau$ decays

Author

Albrecht, H., Ehrlichmann, H., Hamacher, T., Kruger, A., Nau, A., Nippe, A., Nowak, S., Reidenbach, M., Schafer, M., Schroder, H., Schulz, H. D., Walter, M., Wurth, R., Appuhn, R. D., Hast, C., Herrera, G., Kolanoski, H., Lange, Arnd, Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Wegener, H., Mundt, R., Oest, T., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Holscher, A., Hofmann, W., Hupper, A., Khan, S., Knopfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Patel, P. M., Prentice, J. D., Saull, P. R. B., Seidel, S. C., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Ressing, D., Schmidtler, M., Schneider, M., Schubert, Klaus R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Podobnik, T., Zivko, T., Cronstrom, H. I., Jonsson, L., Balagura, V., Belyaev, I., Danilov, M., Droutskoy, A., Golutvin, A., Gorelov, I., Kostina, G., Lyubimov, V., Murat, P., Pakhlov, P., Ratnikov, F., Semenov, S., Shibaev, V., Soloshenko, V., Tikhomirov, I., and Zaitsev, Yu.

Subjects
annihilation: electron positron, electroproduction: tau, ARGUS, DESY DORIS Stor, tau: decay modes, +2meson+lepton%22">tau- --> 2meson lepton, tau: branching ratio, electron positron: annihilation, decay modes: tau, pair production: tau, +anti-p+pi0%22">tau- --> anti-p pi0, final state: (0neutrino), lepton number: violation, baryon number: violation, +lepton+photon%22">tau- --> lepton photon, +meson+lepton%22">tau- --> meson lepton, tau: pair production, +anti-p+eta%22">tau- --> anti-p eta, electron positron: colliding beams, 9.4-10.6 GeV-cms, (0neutrino): final state, colliding beams: electron positron, tau: electroproduction, +anti-p+photon%22">tau- --> anti-p photon, +3lepton%22">tau- --> 3lepton, upper limit, experimental results
Published
1992
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24. Search for charm production in direct decays of the $\Upsilon$(1S) resonance

Author

Albrecht, H., Ehrlichmann, H., Hamacher, T., Kruger, A., Nau, A., Nippe, A., Nowak, S., Reidenbach, M., Schafer, M., Schroder, H., Schulz, H. D., Walter, M., Wurth, R., Appuhn, R. D., Hast, C., Herrera, G., Kolanoski, H., Lange, Arnd, Lindner, A., Mankel, R., Schieber, M., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Walther, A., Wegener, D., Paulini, M., Reim, K., Wegener, H., Mundt, R., Oest, T., Schmidt-Parzefall, W., Funk, W., Stiewe, J., Werner, S., Ehret, K., Holscher, A., Hofmann, W., Hupper, A., Khan, S., Knopfle, K. T., Spengler, J., Britton, D. I., Charlesworth, C. E. K., Edwards, K. W., Hyatt, E. R. F., Kapitza, H., Krieger, P., MacFarlane, D. B., Patel, P. M., Prentice, J. D., Saull, P. R. B., Seidel, S. C., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Ressing, D., Schmidtler, M., Schneider, M., Schubert, Klaus R., Strahl, K., Waldi, R., Weseler, S., Kernel, G., Krizan, P., Kriznic, E., Podobnik, T., Zivko, T., Cronstrom, H. I., Jonsson, L., Balagura, V., Belyaev, I., Danilov, M., Droutskoy, A., Golutvin, A., Gorelov, I., Kostina, G., Lyubimov, V., Murat, P., Pakhlov, P., Ratnikov, F., Semenov, S., Shibaev, V., Soloshenko, V., Tikhomirov, I., and Zaitsev, Yu.

Subjects
Upsilon(9460): decay modes, Upsilon(9460): branching ratio, J/psi(3100), annihilation: electron positron, ARGUS, DESY DORIS Stor, Upsilon(9460): electroproduction, lepton: direct production, +3gluon%22">Upsilon(9460) --> 3gluon, electron positron: annihilation, electroproduction: Upsilon(9460), decay modes: Upsilon(9460), +J%2Fpsi%283100%29+anything%22">Upsilon(9460) --> J/psi(3100) anything, vacuum polarization, decay: charmed particle, (D0 pi+): mass spectrum, charmed particle: decay, direct production: lepton, electron positron: colliding beams, 9.46 GeV-cms, mass spectrum: (D0 pi+), D*(2010), mass spectrum: (positron electron), +D*%282010%29+anything%22">Upsilon(9460) --> D*(2010) anything, (positron electron): mass spectrum, colliding beams: electron positron, gluon gluon: fusion, upper limit, experimental results
Published
1992
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25. Search for b$\to$s gluon in B meson decays

Author

Albrecht, H., Gläser, R., Schulz, H. D., Sefkow, F., Wurth, R., Appuhn, R. D., Drescher, A., Hast, C., Herrera, G., Kolanoski, H., Lange, A., Lindner, A., Harder, G., Mankel, R., Scheck, H., Schweda, G., Spaan, B., Walther, A., Wegener, D., Paulini, M., Reim, K., Volland, U., Wegener, H., Krüger, A., Funk, W., Stiewe, J., Werner, S., Ball, S., Gabriel, J. C., Geyer, C., Hölscher, A., Hofmann, W., Holzer, B., Khan, S., Nippe, A., Spengler, J., Charlesworth, C. E. K., Edwards, K. W., Frisken, W. R., Kapitza, H., Krieger, P., Kutschke, R., MacFarlane, D. B., McLean, K. W., Orr, R. S., Oest, T., Parsons, J. A., Patel, P. M., Prentice, J. D., Seidel, S. C., Swain, J. D., Tsipolitis, G., Yoon, T.-S., Davis, R., Ruf, T., Schael, S., Reidenbach, M., Schubert, K. R., Strahl, K., Waldi, R., Weseler, S., Boštjančič, B., Kernel, G., Križan, P., Križnič, E., Pleško, M., Cronström, H. I., Schäfer, M., Jönsson, L., Nilsson, A. W., Babaev, A., Danilov, M., Fominykh, B., Golutvin, A., Gorelov, I., Lubimov, V., Rostovtsev, A., Semenov, A., Schmidt-Parzefall, W., Semenov, S., Shevchenko, V., Soloshenko, V., Tchistilin, V., Tichomirov, I., Zaitsev, Yu., Childers, R., Darden, C. W., ARGUS Collaboration, and Schröder, H.

Subjects
S041.152, ARGUS, S041.151, Upsilon(10570) [electroproduction], DESY DORIS Stor, S041.154, S041.153, S041.156, S041.155, S041.158, S041.157, annihilation [electron positron], bottom, 10.57 GeV-cms, S042.72, branching ratio [B], S042.73, S042.74, B [pair production], S042.13, ddc:530, S042.14, S042.15, electron positron [colliding beams], S042.75, S042.10, S042.76, S042.11, S042.12, electron positron [annihilation], quark [nonleptonic decay], B [decay modes], nonleptonic decay [quark], decay modes [B], pair production [B], +strangeness+gluon%22">beauty --> strangeness gluon, electroproduction [Upsilon(10570)], colliding beams [electron positron], S041.7, S041.8, S041.5, S042.86, upper limit, S041.6, experimental results
Abstract

Using the ARGUS detector at the $e^+e^−$ storage ring DORIS II at DESY, a search for penguin decays of B mesons involving b→s gluon has been performed. No evidence for the penguin mechanism was found and a number of upper limits are quoted.

Published
1991
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26. Search for b$\to$s gluon in B meson decays

Author

Albrecht, H., Gläser, R., Harder, G., Krüger, A., Nippe, A., Oest, T., Reidenbach, M., Schäfer, M., Schmidt-Parzefall, W., Schröder, H., Schulz, H. D., Sefkow, F., Wurth, R., Appuhn, R. D., Drescher, A., Hast, C., Herrera, G., Kolanoski, H., Lange, A., Lindner, A., Mankel, R., Scheck, H., Schweda, G., Spaan, B., Walther, A., Wegener, D., Paulini, M., Reim, K., Volland, U., Wegener, H., Funk, W., Stiewe, J., Werner, S., Ball, S., Gabriel, J. C., Geyer, C., Hölscher, A., Hofmann, W., Holzer, B., Khan, S., Spengler, J., Charlesworth, C. E. K., Edwards, K. W., Frisken, W. R., Kapitza, H., Krieger, P., Kutschke, R., MacFarlane, D. B., McLean, K. W., Orr, R. S., Parsons, J. A., Patel, P. M., Prentice, J. D., Seidel, S. C., Swain, J. D., Tsipolitis, G., Yoon, T.-S., Davis, R., Ruf, T., Schael, S., Schubert, K. R., Strahl, K., Waldi, R., Weseler, S., Boštjančič, B., Kernel, G., Križan, P., Križnič, E., Pleško, M., Cronström, H. I., Jönsson, L., Nilsson, A. W., Babaev, A., Danilov, M., Fominykh, B., Golutvin, A., Gorelov, I., Lubimov, V., Rostovtsev, A., Semenov, A., Semenov, S., Shevchenko, V., Soloshenko, V., Tchistilin, V., Tichomirov, I., Zaitsev, Yu., Childers, R., Darden, C. W., and ARGUS Collaboration

Subjects
annihilation: electron positron, Upsilon(10570): electroproduction, S041.152, ARGUS, S041.151, DESY DORIS Stor, S041.154, S041.153, S041.156, S041.155, S041.158, S041.157, electron positron: annihilation, bottom, 10.57 GeV-cms, S042.72, S042.73, S042.74, S042.13, pair production: B, S042.14, S042.15, B: branching ratio, S042.75, electroproduction: Upsilon(10570), S042.10, S042.76, S042.11, S042.12, nonleptonic decay: quark, B: pair production, electron positron: colliding beams, +strangeness+gluon%22">beauty --> strangeness gluon, colliding beams: electron positron, B: decay modes, decay modes: B, quark: nonleptonic decay, S041.7, S041.8, S041.5, S042.86, upper limit, S041.6, experimental results
Abstract

Using the ARGUS detector at the $e^+e^−$ storage ring DORIS II at DESY, a search for penguin decays of B mesons involving b→s gluon has been performed. No evidence for the penguin mechanism was found and a number of upper limits are quoted.

Published
1991
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27. Physics with ARGUS

Author

Albrecht, Hartwig, Andam, A. A., Hasemann, H., Hupper, A., Khan, S., Knopfle, K. T., Seeger, M., Spahn, M., Spengler, J., Britton, D. I., Brown, N. N., Charlesworth, C. E. K., Edwards, K. W., Hofmann, R. P., Fernholz, R., Frisken, William R., Fukunaga, C., Gilkinson, D. J., Gingrich, D. M., Goddard, M., Hyatt, E. R. F., Kim, P. C. H., Krieger, P., Kutschke, Robert K., Kapitza, H., MacFarlane, D. B., McKenna, J. A., McLean, K. W., Orr, R. S., Padley, B. Paul, Parsons, J. A., Patel, P. M., Prentice, J. D., Saull, P. R. B., Seidel, S. C., Kirchhoff, T., Seywerd, H. C. J., Stacey, B. J., Swain, J. D., Tsipolitis, G., Tzamariudaki, K., van de Water, Richard George, Yoon, T. S., Yun, J. C., Ammar, R., Coppage, D., Kruger, A., Davis, R., Kanekal, S., Kwak, N., Ratz, C., Ressing, D., Ruf, T., Schael, S., Schneider, M., Strahl, K., Tamminga, J., Lembke-Koppitz, I., Weseler, S., Bostjancic, B., Kernel, G., Krizan, P., Kriznic, E., Plesko, M., Podobnik, T., Zivko, T., Cronstrom, H. I., Jonsson, L., Nau, A., Oku, Y., Arefev, A., Babaev, A., Balagura, V., Barsuk, S., Belyaev, I., Blinov, V., Chechelnitsky, S., Chistov, R., Danilov, M., Nilsson, A. W., Droutskoi, A., Eiges, V., Fominykh, B., Gershtein, I., Gershtein, Yu., Golutvin, A., Gorelov, I., Igonkina, O., Korolko, I., Kostina, G., Nippe, A., Litvintsev, D., Lubimov, V., Matveev, V., Murat, P., Nagovitsyn, V., Pakhlov, P., Ratnikov, F., Root, N., Rostovtsev, A., Ryltsov, V., Nowak, S., Semenov, A., Semenov, S., Semenov, Yu., Shevchenko, V., Shibaev, V., Snizhko, A., Soloshenko, V., Sopov, V., Chistilin, V., Tikhomirov, I., Binder, U., Philipp, A., Undrus, Alexander E., Zaitsev, Yu., Zhilich, V., Childers, R., Darden, C. W., Gennow, H., ARGUS Collaboration, Reidenbach, M., Schafer, M., Schroder, H., Schulz, H. D., Sefkow, F., Selonke, F., Volland, U., Walter, M., Wurth, R., Bockmann, P., Yagil, A., Appuhn, R. D., Buchner, U., Donker, J. P., Drescher, A., Graf, H. J., Grawe, B., Hast, C., Herrera, G., Kamp, D., Drews, G., Kolanoski, H., Kosche, A., Lange, Arnd, Lindner, A., Mankel, R., Markees, A., Matthiesen, U., Scheck, H., Schieber, M., Schweda, G., Ehrlichmann, H., Siegmund, T., Spaan, B., Thurn, H., Topfer, D., Walther, A., Wegener, D., Westerhoff, S., Bittner, M., Eckstein, P., Frankl, C., Funk, Wolfgang, Graf, J., Holtzhauer, R., Schmidtler, M., Schramm, M., Schubert, Klaus R., Schwierz, R., Topfer, M., Waldi, R., Paulini, M., Reim, K., Glaser, R., Wegener, H., Behnke, O., Eckmann, R., Hapke, M., Kuipers, H., Mai, O., Mundt, R., Oest, T., Reiner, R., Rohde, A., Hamacher, T., Schmidt-Parzefall, W., Weyers, P., Becker, U., Eckmann, C., Fritz, K., Heintz, F., Heller, R., Klinger, T., Salomon, R., Schwingenheuer, B., Harder, G., Stiewe, J., Utzat, P., Werner, S., Ball, S., Ehret, K., Gabriel, J. C., Geyer, C., Hofmann, W., Holscher, A., and Holzer, B.

Subjects
electroproduction: B, upsilon mesons [mass], two-photon [exchange], annihilation: electron positron, electroproduction: tau, ARGUS, Electron–positron annihilation, Hadron, electroproduction [vector meson], General Physics and Astronomy, tau [hadronic decay], annihilation [electron positron], leptonic decay [tau], experimental results [review], D [decay modes], decay modes [Lambda/c+], width [upsilon mesons], upsilon mesons: width, electroproduction [tau], gluon: jet, approx. 10 GeV-cms, decay modes: Lambda/c+, electron positron [colliding beams], Nuclear Experiment, computer.programming_language, Physics, Argus, photon photon [interaction], Cabibbo–Kobayashi–Maskawa matrix, leptonic decay: tau, mass: upsilon mesons, B0 anti-B0: mixing, Michel parameter, electron positron: colliding beams, review: experimental results, electroproduction: vector meson, decay modes [B], hadron spectroscopy [charmed particle], tau [electroproduction], fragmentation [quark], D: decay modes, interaction: photon photon, mass [upsilon mesons], B: decay modes, colliding beams [electron positron], two-photon: exchange, quark: fragmentation, Particle physics, Meson, DESY DORIS Stor, jet [electroproduction], electron positron: annihilation, vector meson: electroproduction, electroproduction [B], interaction [photon photon], photon photon: interaction, Nuclear physics, jet: electroproduction, upsilon mesons: mass, charmed particle: hadron spectroscopy, jet [gluon], B: electroproduction, ddc:530, vector meson [electroproduction], Particle Physics, tau: hadronic decay, Lambda/c+ [decay modes], hadronic decay: tau, lepton: universality, electroproduction [jet], exchange: two-photon, electron positron [annihilation], universality [lepton], Lambda/c+: decay modes, B [decay modes], High Energy Physics::Phenomenology, decay modes [D], Elementary particle physics, electroproduction: jet, B [electroproduction], colliding beams: electron positron, tau: electroproduction, tau: leptonic decay, decay modes: B, High Energy Physics::Experiment, mixing [B0 anti-B0], hadronic decay [tau], computer, tau [leptonic decay], decay modes: D, exchange [two-photon], Lepton
Abstract

Physics reports 276(5-6), 224 - 405 (1996). doi:10.1016/S0370-1573(96)00008-7, The impact of the ARGUS experiment to elementary particle physics is reviewed. More than ten years of data taking has allowed ARGUS to contribute significantly to our understanding of beauty and charmed hadrons, τ Leptons, ϒ mesons, ϒϒ interactions and fragmentation processes. In particular the ARGUS measurements of CKM matrix elements opened up a new window on the Standard Model., Published by Elsevier Science, North-Holland, Amsterdam [u.a.]

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