7 results on '"Ranga Swamy, T. N."'
Number of results to display per page
Search Results
2. Test of QED in the reactionse+e−→e+e− ande+e−→μ+μ− at CMS energies from 9.4 to 31.6 GeV
- Author
-
Berger, Ch., Genzel, H., Grigull, R., Lackas, W., Raupach, F., Klovning, A., Lillestöl, E., Lillethun, E., Skard, J. A., Ackermann, H., Alexander, G., Barreiro, F., Bürger, J., Criegee, L., Dehne, H. C., Devenish, R., Eskreys, A., Flügge, G., Franke, G., Gabriel, W., Gerke, Ch., Knies, G., Lehmann, E., Mertiens, H. D., Michelsen, U., Pape, K. H., Reich, H. D., Stella, B., Ranga Swamy, T. N., Timm, U., Wagner, W., Waloschek, P., Winter, G. G., Zimmermann, W., Achterberg, O., Blobel, V., Boesten, L., Kapitza, H., Koppitz, B., Lewendel, B., Lührsen, W., Maschuw, R., van Staa, R., Spitzer, H., Chang, C. Y., Glasser, R. G., Kellogg, R. G., Lau, K. H., Sechi-Zorn, B., Skuja, A., Welch, G., Zorn, G. T., Bäcker, A., Brandt, S., Derikum, K., Diekman, A., Grupen, C., Meyer, H. J., Neumann, B., Rost, M., Zech, G., Azemoon, T., Daum, H. J., Meyer, O., Rössler, M., Schmidt, D., and Wacker, K.
- Abstract
We have measured Bhabha scattering at cms energies of 9.4, 13, 17, 22, 27.5, 30.0, and 31.6 GeV and the reactione
+ e- →μ+ μ- at 9.4 GeV. The experiment covers spacelike momentum transfers up to −850 GeV2 and timelike momentum transfers up to 1,000 GeV2 . We obtain good agreement with QED comparing differential cross sections (measured between 35° and 145°), acoplanarity distributions and the energy dependence (for Bhabha scattering). Defining possible modifications of QED in a model independent way we obtain stringent limits in the range of 70–200 GeV on cutoff parameters. We test to an accuracy of 5–8% the validity of some general principles of QED, such as pointlike coupling, crossing symmetry and μe-universality.- Published
- 1980
- Full Text
- View/download PDF
3. Two-particle correlations in $e^+$$e^−$ annihilation
- Author
-
Berger, Ch., Genzel, H., Grigull, R., Lackas, W., Raupach, F., Klovning, A., Lillestöl, E., Lillethun, E., Skard, J. A., Ackermann, H., Alexander, G., Barreiro, F., Bürger, J., Criegee, L., Dehne, H. C., Devenish, R., Eskreys, A., Flügge, G., Franke, G., Gabriel, W., Gerke, Ch., Knies, G., Lehmann, E., Mertiens, H. D., Michelsen, U., Pape, K. H., Reich, H. D., Stella, B., Ranga Swamy, T. N., Timm, U., Wagner, W., Waloschek, P., Winter, G. G., Zimmermann, W., Achterberg, O., Blobel, V., Boesten, L., Hepp, V., Kapitza, H., Koppitz, B., Lewendel, B., Lührsen, W., Maschuw, R., Van Staa, R., Spitzer, H., Chang, C. Y., Glasser, R. G., Kellogg, R. G., Lau, K. H., Polvado, R. O., Sechi-Zorn, B., Skuja, A., Welch, G., Zorn, G. T., Bäcker, A., Brandt, S., Derikum, K., Diekmann, A., Grupen, C., Meyer, H. J., Neumann, B., Rost, M., Zech, G., Azemoon, T., Daum, H. J., Meyer, H., Meyer, O., Rössler, M., Schmidt, D., and Wacker, K.
- Abstract
Physics letters / B 90(3), 312 - 316 (1980). doi:10.1016/0370-2693(80)90750-9, Published by North-Holland Publ., Amsterdam
- Published
- 1980
- Full Text
- View/download PDF
4. Hadron production from photon-photon interactions in the CM energy range from 1 to 5 $GeV$
- Author
-
Berger, Ch., Genzel, H., Alexander, G., Barreiro, F., Bürger, J., Criegee, L., Dehne, H. C., Devenish, R., Eskreys, A., Flügge, G., Franke, G., Gabriel, W., Grigull, R., Gerke, Ch., Knies, G., Lehmann, E., Mertiens, H. D., Michelsen, U., Pape, K. H., Reich, H. D., Stella, B., Ranga Swamy, T. N., Timm, U., Lackas, W., Wagner, W., Waloschek, P., Winter, G. G., Zimmermann, W., Achterberg, O., Blobel, V., Boesten, L., Kapitza, H., Koppitz, B., Lührsen, W., Raupach, F., Maschuw, R., van Staa, R., Spitzer, H., Chang, C. Y., Glasser, R. G., Kellogg, R. G., Lau, K. H., Sechi-Zorn, B., Skuja, A., Welch, G., Klovning, A., Zorn, G. T., Bäcker, A., Brandt, S., Derikum, K., Diekmann, A., Grupen, C., Meyer, H. J., Neumann, B., Rost, M., Zech, G., Lillestöl, E., Azemoon, T., Daum, H. J., Meyer, H., Meyer, O., Rössler, M., Schmidt, D., Wacker, K., PLUTO Collaboration, Lillethun, E., Skard, J. A., and Ackermann, H.
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Annihilation ,Photon ,Scattering ,Hadron ,Detector ,Nuclear physics ,Pluto ,Formalism (philosophy of mathematics) ,High Energy Physics::Experiment ,ddc:530 ,Storage ring - Abstract
We present the first data on photon-photon annihilation into hadrons for CM energies > 1 GeV obtained with the detector PLUTO at the e+e− storage ring PETRA. Cross sections are extracted using an inelastic eγ scattering formalism. The results are compared to expectations from Regge-like models.
- Published
- 1979
5. Test of {QED} in the Reactions $e^+ e^- \to e^+ e^-$ and $e^+ e^- \to \mu^+ \mu^-$ at {CMS} Energies From 9.4-{GeV} to 31.6-{GeV}
- Author
-
Berger, Christoph, Genzel, H., Alexander, G., Barreiro, F., Burger, J., Criegee, L., Dehne, H. C., Devenish, R., Eskreys, A., Flugge, G., Franke, G., Gabriel, W., Grigull, R., Gerke, C., Knies, G., Lehmann, E., Mertiens, H. D., Michelsen, U., Pape, K. H., Reich, Hannah, Stella, B., Ranga Swamy, T. N., Timm, U., Lackas, W., Wagner, W., Waloschek, P., Winter, G. G., Zimmermann, W., Achterberg, O., Blobel, V., Boesten, L., Kapitza, H., Koppitz, B., Lewendel, B., Raupach, F., Luhrsen, W., Maschuw, R., van Staa, R., Spitzer, H., Chang, C. Y., Glasser, R. G., Kellogg, R. G., Lau, K. H., Sechi-Zorn, B., Skuja, A., Klovning, A., Welch, G., Zorn, G. T., Backer, A., Brandt, S., Derikum, K., Diekmann, A., Grupen, C., Meyer, H. J., Neumann, B., Rost, M., Lillestol, E., Zech, Gunter, Azemoon, T., Daum, H. J., Meyer, H., Meyer, O., Rossler, M., Schmidt, D., Wacker, K., PLUTO Collaboration, Lillethun, E., Skard, J. A., and Ackermann, H.
- Subjects
PAIR PRODUCTION [MUON] ,MUON [ELECTROPRODUCTION] ,RADIATIVE CORRECTION ,ELECTROPRODUCTION: MUON ,SYMMETRY: CROSSING ,ELECTRON MUON: UNIVERSALITY ,ENERGY DEPENDENCE: DIFFERENTIAL CROSS SECTION ,+MUON%2B+MUON%22">ELECTRON POSITRON --> MUON+ MUON ,CROSSING [SYMMETRY] ,DIFFERENTIAL CROSS SECTION [ANGULAR DEPENDENCE] ,DESY PETRA STOR ,DIFFERENTIAL CROSS SECTION: ENERGY DEPENDENCE ,ELECTRON POSITRON: ELASTIC SCATTERING ,MUON: PAIR PRODUCTION ,ANGULAR DEPENDENCE [DIFFERENTIAL CROSS SECTION] ,PLUTO ,QUANTUM ELECTRODYNAMICS: VALIDITY TEST ,ELECTROPRODUCTION [MUON] ,MUON: ELECTROPRODUCTION ,DIFFERENTIAL CROSS SECTION [ENERGY DEPENDENCE] ,COLLIDING BEAMS: ELECTRON POSITRON ,EXPERIMENTAL RESULTS ,DESY DORIS STOR ,COLLIDING BEAMS [ELECTRON POSITRON] ,VALIDITY TEST [QUANTUM ELECTRODYNAMICS] ,PAIR PRODUCTION: MUON ,UNIVERSALITY [ELECTRON MUON] ,ANNIHILATION: ELECTRON POSITRON ,9.4-31.6 GEV-CM ,ELECTRON POSITRON [COLLIDING BEAMS] ,ANGULAR DEPENDENCE: DIFFERENTIAL CROSS SECTION ,ELECTRON POSITRON: COLLIDING BEAMS ,ELECTRON POSITRON [ELASTIC SCATTERING] ,ELECTRON POSITRON [ANNIHILATION] ,ENERGY DEPENDENCE [DIFFERENTIAL CROSS SECTION] ,ELASTIC SCATTERING: ELECTRON POSITRON ,DIFFERENTIAL CROSS SECTION: ANGULAR DEPENDENCE ,ELASTIC SCATTERING [ELECTRON POSITRON] ,ANNIHILATION [ELECTRON POSITRON] ,MUON [PAIR PRODUCTION] ,ELECTRON POSITRON: ANNIHILATION - Abstract
22 pp. (1980).
- Published
- 1980
6. The total hadronic cross section for $e^+e^−$ annihilation between 3.1 and 4.8 GeV center of mass energy
- Author
-
Burmester, Joerg, Criegee, L., Dehne, H. C., Derikum, K., Devenish, R., Fox, J. D., Franke, G., Flügge, G., Gerke, Ch., Horlitz, G., Kahl, Th., Knies, G., Rössler, M., Wolff, S., Schmitz, R., Ranga Swamy, T. N., Timm, U., Wahl, H., Waloschek, P., Winter, G. G., Zimmermann, W., Blobel, V., Jensing, H., Koppitz, B., Lohrmann, E., Bäcker, A., Bürger, J., Grupen, C., Rost, M., Meyer, H., and Wacker, K.
- Abstract
Physics letters / B 66(4), 395 - 400 (1977). doi:10.1016/0370-2693(77)90023-5, Published by North-Holland Publ., Amsterdam
- Published
- 1976
- Full Text
- View/download PDF
7. Results on two-body decays of the (3100)-resonance
- Author
-
Criegee, L., Dehne, H. C., Waloschek, P., Winter, G. G., Wolff, S., Zimmermann, W., Fox, J., Franke, G., Horlitz, G., Knies, G., Lohrmann, E., Schmitz, R., Ranga Swamy, T. N., and Timm, U.
- Subjects
WEAK INTERACTION [MODEL] ,DECAY MODES [J/PSI(3100)] ,FINAL STATE [P] ,ANTI-P [FINAL STATE] ,+P+ANTI-P+P%22">J/PSI(3100) --> P ANTI-P P ,J/PSI(3100) [DECAY MODES] ,J/PSI(3100): ELECTROPRODUCTION ,ELECTROPRODUCTION [J/PSI(3100)] ,P: FINAL STATE ,MAGNETIC FIELD ,FINAL STATE: ANTI-P ,MUON+ [FINAL STATE] ,DECAY [BACKSCATTER] ,ANTI-P: FINAL STATE ,PROPORTIONAL CHAMBER: EXPERIMENTAL RESULTS ,BACKSCATTER: DECAY ,+MUON%2B+MUON%22">J/PSI(3100) --> MUON+ MUON ,BACKSCATTER [DECAY] ,EXPERIMENTAL RESULTS: PROPORTIONAL CHAMBER ,FINAL STATE [MUON+] ,COLLIDING BEAMS: ELECTRON POSITRON ,FINAL STATE [MUON-] ,MODEL: WEAK INTERACTION ,P [FINAL STATE] ,DESY DORIS STOR ,DECAY MODES: J/PSI(3100) ,FINAL STATE: MUON ,FINAL STATE: MUON+ ,COLLIDING BEAMS [ELECTRON POSITRON] ,MUON-: FINAL STATE ,FOUR-PI-DETECTOR ,ELECTROPRODUCTION: J/PSI(3100) ,ELECTRON POSITRON [COLLIDING BEAMS] ,DECAY: FORWARD SCATTERING ,ELECTRON POSITRON: COLLIDING BEAMS ,PROPORTIONAL CHAMBER [EXPERIMENTAL RESULTS] ,J/PSI(3100): DECAY MODES ,MUON+: FINAL STATE ,FINAL STATE: P ,MUON- [FINAL STATE] ,DECAY: BACKSCATTER ,J/PSI(3100) [ELECTROPRODUCTION] ,FINAL STATE [ANTI-P] ,FORWARD SCATTERING [DECAY] ,EXPERIMENTAL RESULTS [PROPORTIONAL CHAMBER] - Abstract
10 pp. (1975).
- Published
- 1975
- Full Text
- View/download PDF
Catalog
Books, media, physical & digital resources
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.