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Measurement of R and determination of the charged-particle multiplicity in e{sup -}e{sup +} annihilation at {radical}s around 10 GeV

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Abstract

We have measured the R value in non-resonant e{sup +}e{sup -} annihilation using the ARGUS detector at the storage ring DORIS II. At a centre-of-mass energy {radical}s = 9.36 GeV the ratio of the hadronic cross-section to the {mu}-pair cross-section in lowest order QED has been determined to be R = 3.46 {+-} 0.03 {+-} 0.13. In addition, we have measured the charged-particle multiplicities in non-resonant hadron production at {radical}s = 10.47 GeV just below the Banti B threshold and in {Upsilon}(4S) resonance decays. For the average charged-particle multiplicities in continuum events and {Upsilon}(4S) {yields} Banti B decays we obtain (n){sub cont} = 8.35 {+-} 0.02 {+-} 0.20 and (n){sub {Upsilon}(4S)} = 10.81 {+-} 0.05 {+-} 0.23. (orig.).
Authors:
Albrecht, H; Ehrlichmann, H; Hamacher, T; Krueger, A; Nau, A; Nippe, A; Reidenbach, M; Schaefer, M; Schroeder, H; Schulz, H D; Sefkow, F; Wurth, R; [1]  Appuhn, R D; Hast, C; Herrera, G; Kolanoski, H; Lange, A; Lindner, A; Mankel, R; Schieber, M; Siegmund, T; Spaan, B; Thurn, H; Toepfer, D; Walther, A; Wegener, D; [2]  Paulini, M; Reim, K; Volland, U; Wegener, H; [3]  Hapke, M; Mundt, R; Oest, T; Schmidt-Parzefall, W; [4]  Funk, W; Stiewe, J; Werner, S; [5]  Ball, S; Gabriel, J C; Geyer, C; Hoelscher, A; Hofmann, W; Holzer, B; Khan, S; Knoepfle, K T; Spengler, J; [6]  Britton, D I; Charlesworth, C E.K.; Edwards, K W; Kapitza, H; Krieger, P; Kutschke, R; MacFarlane, D B; Orr, R S; Patel, P M; Prentice, J D; Seidel, S C; Tsipolitis, G; Tzamariudaki, K; Van de Water, R G; Yoon, T S; [7]  Ressing, D; Schael, S; Schubert, K R; Strahl, K; Waldi, R; Weseler, S; [8]  Bostjancic, B; Kernel, G; Krizan, P; Kriznic, E; Podobnik, T; Zivko, T; [9]  Cronstroem, H I; Joensson, L; [10]  Balagura, V; Danilov, M; Droutskoy, A; Fominykh, B; Golutvin, A; Gorelov, I; Ratnikov, F; Lubimov, V; Rostovtsev, A; Semenov, A; Semenov, S; Shevchenko, V; Soloshenko, V; Tichomirov, I; Zaitsev, Yu; [11]  Childers, R; Darden, C W; [12]  ARGUS Collaboration
  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  2. Dortmund Univ. (Germany). Inst. fuer Physik
  3. Erlangen-Nuernberg Univ., Erlangen (Germany). Physikalisches Inst.
  4. Hamburg Univ. (Germany). 2. Inst. fuer Experimentalphysik
  5. Heidelberg Univ. (Germany). Inst. fuer Hochenergiephysik
  6. Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany)
  7. Institute of Particle Physics (Canada)
  8. Karlsruhe Univ. (T.H.) (Germany). Inst. fuer Experimentelle Kernphysik
  9. Ljubljana Univ. (Yugoslavia). Inst. J. Stefan
  10. Lund Univ. (Sweden). Inst. of Physics
  11. Institute for Theoretical and Experimental Physics, Moscow (USSR)
  12. South Carolina Univ., Columbia, SC (United States)
Publication Date:
Aug 01, 1991
Product Type:
Technical Report
Report Number:
DESY-91-092
Reference Number:
SCA: 662310; 662350; PA: DEN-92:000568; SN: 92000645447
Resource Relation:
Other Information: PBD: Aug 1991
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELECTRON-POSITRON INTERACTIONS; ANNIHILATION; UPSILON-10575 MESONS; HADRONIC PARTICLE DECAY; BRANCHING RATIO; CHARGED PARTICLES; TOTAL CROSS SECTIONS; GEV RANGE 01-10; GEV RANGE 10-100; MULTIPLICITY; MULTIPLE PRODUCTION; EXPERIMENTAL DATA; ANGULAR CORRELATION; SCATTERPLOTS; 662310; 662350; WEAK AND ELECTROMAGNETIC INTERACTIONS OF LEPTONS; DECAYS OF MESONS
OSTI ID:
10114406
Research Organizations:
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Other: ON: DE92759149; CNN: Contract BMFT 054DO51P; BMFT 054ER12P; BMFT 055HD21P; BMFT 054KA17P; DE-AS09-80ER10690; TRN: DE9200568
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
DEN
Size:
21 p.
Announcement Date:
Jun 30, 2005

Technical Report:

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Citation Formats

Albrecht, H, Ehrlichmann, H, Hamacher, T, Krueger, A, Nau, A, Nippe, A, Reidenbach, M, Schaefer, M, Schroeder, H, Schulz, H D, Sefkow, F, Wurth, R, Appuhn, R D, Hast, C, Herrera, G, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Paulini, M, Reim, K, Volland, U, Wegener, H, Hapke, M, Mundt, R, Oest, T, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ball, S, Gabriel, J C, Geyer, C, Hoelscher, A, Hofmann, W, Holzer, B, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Kapitza, H, Krieger, P, Kutschke, R, MacFarlane, D B, Orr, R S, Patel, P M, Prentice, J D, Seidel, S C, Tsipolitis, G, Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schael, S, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Bostjancic, B, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Cronstroem, H I, Joensson, L, Balagura, V, Danilov, M, Droutskoy, A, Fominykh, B, Golutvin, A, Gorelov, I, Ratnikov, F, Lubimov, V, Rostovtsev, A, Semenov, A, Semenov, S, Shevchenko, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, Childers, R, Darden, C W, and ARGUS Collaboration. Measurement of R and determination of the charged-particle multiplicity in e{sup -}e{sup +} annihilation at {radical}s around 10 GeV. Germany: N. p., 1991. Web.
Albrecht, H, Ehrlichmann, H, Hamacher, T, Krueger, A, Nau, A, Nippe, A, Reidenbach, M, Schaefer, M, Schroeder, H, Schulz, H D, Sefkow, F, Wurth, R, Appuhn, R D, Hast, C, Herrera, G, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Paulini, M, Reim, K, Volland, U, Wegener, H, Hapke, M, Mundt, R, Oest, T, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ball, S, Gabriel, J C, Geyer, C, Hoelscher, A, Hofmann, W, Holzer, B, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Kapitza, H, Krieger, P, Kutschke, R, MacFarlane, D B, Orr, R S, Patel, P M, Prentice, J D, Seidel, S C, Tsipolitis, G, Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schael, S, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Bostjancic, B, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Cronstroem, H I, Joensson, L, Balagura, V, Danilov, M, Droutskoy, A, Fominykh, B, Golutvin, A, Gorelov, I, Ratnikov, F, Lubimov, V, Rostovtsev, A, Semenov, A, Semenov, S, Shevchenko, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, Childers, R, Darden, C W, & ARGUS Collaboration. Measurement of R and determination of the charged-particle multiplicity in e{sup -}e{sup +} annihilation at {radical}s around 10 GeV. Germany.
Albrecht, H, Ehrlichmann, H, Hamacher, T, Krueger, A, Nau, A, Nippe, A, Reidenbach, M, Schaefer, M, Schroeder, H, Schulz, H D, Sefkow, F, Wurth, R, Appuhn, R D, Hast, C, Herrera, G, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Paulini, M, Reim, K, Volland, U, Wegener, H, Hapke, M, Mundt, R, Oest, T, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ball, S, Gabriel, J C, Geyer, C, Hoelscher, A, Hofmann, W, Holzer, B, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Kapitza, H, Krieger, P, Kutschke, R, MacFarlane, D B, Orr, R S, Patel, P M, Prentice, J D, Seidel, S C, Tsipolitis, G, Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schael, S, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Bostjancic, B, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Cronstroem, H I, Joensson, L, Balagura, V, Danilov, M, Droutskoy, A, Fominykh, B, Golutvin, A, Gorelov, I, Ratnikov, F, Lubimov, V, Rostovtsev, A, Semenov, A, Semenov, S, Shevchenko, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, Childers, R, Darden, C W, and ARGUS Collaboration. 1991. "Measurement of R and determination of the charged-particle multiplicity in e{sup -}e{sup +} annihilation at {radical}s around 10 GeV." Germany.
@misc{etde_10114406,
title = {Measurement of R and determination of the charged-particle multiplicity in e{sup -}e{sup +} annihilation at {radical}s around 10 GeV}
 author = {Albrecht, H, Ehrlichmann, H, Hamacher, T, Krueger, A, Nau, A, Nippe, A, Reidenbach, M, Schaefer, M, Schroeder, H, Schulz, H D, Sefkow, F, Wurth, R, Appuhn, R D, Hast, C, Herrera, G, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Paulini, M, Reim, K, Volland, U, Wegener, H, Hapke, M, Mundt, R, Oest, T, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ball, S, Gabriel, J C, Geyer, C, Hoelscher, A, Hofmann, W, Holzer, B, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Kapitza, H, Krieger, P, Kutschke, R, MacFarlane, D B, Orr, R S, Patel, P M, Prentice, J D, Seidel, S C, Tsipolitis, G, Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schael, S, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Bostjancic, B, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Cronstroem, H I, Joensson, L, Balagura, V, Danilov, M, Droutskoy, A, Fominykh, B, Golutvin, A, Gorelov, I, Ratnikov, F, Lubimov, V, Rostovtsev, A, Semenov, A, Semenov, S, Shevchenko, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, Childers, R, Darden, C W, and ARGUS Collaboration}
 abstractNote = {We have measured the R value in non-resonant e{sup +}e{sup -} annihilation using the ARGUS detector at the storage ring DORIS II. At a centre-of-mass energy {radical}s = 9.36 GeV the ratio of the hadronic cross-section to the {mu}-pair cross-section in lowest order QED has been determined to be R = 3.46 {+-} 0.03 {+-} 0.13. In addition, we have measured the charged-particle multiplicities in non-resonant hadron production at {radical}s = 10.47 GeV just below the Banti B threshold and in {Upsilon}(4S) resonance decays. For the average charged-particle multiplicities in continuum events and {Upsilon}(4S) {yields} Banti B decays we obtain (n){sub cont} = 8.35 {+-} 0.02 {+-} 0.20 and (n){sub {Upsilon}(4S)} = 10.81 {+-} 0.05 {+-} 0.23. (orig.).}
 place = {Germany}
 year = {1991}
 month = {Aug}
 }