Measurement of the absolute differential cross section of proton–proton elastic scattering at small angles
Abstract
The differential cross section for proton-proton elastic scattering has been measured at a beam energy of 1.0 GeV and in 200 MeV steps from 1.6 to 2.8 GeV for centre-of-mass angles in the range from 12°–16° to 25°–30°, depending on the energy. Absolute normalisations of typically 3% were achieved by studying the energy losses of the circulating beam of the COSY storage ring as it passed repeatedly through the windowless hydrogen target of the ANKE magnetic spectrometer. It is shown that the data have a significant impact upon a partial wave analysis. Furthermore, after extrapolating the differential cross sections to the forward direction, the results are broadly compatible with the predictions of forward dispersion relations.
- Authors:
-
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- Tbilisi State Univ., Tbilisi (Georgia); Forschungszentrum Julich, Julich (Germany)
- JINR, Dubna (Russia); Petersburg Nuclear Physics Institute, Gatchina (Russia)
- Petersburg Nuclear Physics Institute, Gatchina (Russia)
- Forschungszentrum Julich, Julich (Germany)
- Forschungszentrum Julich, Julich (Germany); Chinese Academy of Sciences, Lanzhou (China)
- Univ. Munster, Munster (Germany)
- H. Niewodniczanski Institute of Nuclear Physics PAN, Krakow (Poland)
- JINR, Dubna (Russia)
- Tbilisi State Univ., Tbilisi (Georgia)
- Tbilisi State Univ., Tbilisi (Georgia); JINR, Dubna (Russia)
- JINR, Dubna (Russia); Forschungszentrum Julich, Julich (Germany)
- Forschungszentrum Julich, Julich (Germany); Petersburg Nuclear Physics Institute, Gatchina (Russia)
- George Washington Univ., Washington, D.C. (United States)
- High Energy Physics Institute, Tbilisi State University, GE-0186 Tbilisi, Georgia
- Forschungszentrum Rossendorf, Dresden (Germany); M.V. Lomonosov Moscow State Univ., Moscow (Russia)
- Petersburg Nuclear Physics Institute, Gatchina (Russia); Univ. Bonn, Bonn (Germany)
- UCL, London (United Kingdom)
- Publication Date:
- Research Org.:
- Tbilisi State Univ., Tbilsi (Georgia); George Washington Univ., Washington, DC (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); Forschungszentrum Julich (COSY-FEE); Shota Rustaveli Science Foundation
- OSTI Identifier:
- 1262051
- Alternate Identifier(s):
- OSTI ID: 1310401
- Grant/Contract Number:
- FG02-99ER41110
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics Letters. B
- Additional Journal Information:
- Journal Volume: 755; Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; proton-proton elastic scattering; differential cross section; nucleon-nucleon; intermediate energies; excitation-functions; analyzing power; pp; cosy
Citation Formats
Mchedlishvili, D., Chiladze, D., Dymov, S., Bagdasarian, Z., Barsov, S., Gebel, R., Gou, B., Hartmann, M., Kacharava, A., Keshelashvili, I., Khoukaz, A., Kulessa, P., Kulikov, A., Lehrach, A., Lomidze, N., Lorentz, B., Maier, R., Macharashvili, G., Merzliakov, S., Mikirtychyants, S., Nioradze, M., Ohm, H., Prasuhn, D., Rathmann, F., Serdyuk, V., Schroer, D., Shmakova, V., Stassen, R., Stein, H. J., Stockhorst, H., Strakovsky, I. I., Stroher, H., Tabidze, M., Taschner, A., Trusov, S., Tsirkov, D., Uzikov, Yu., Valdau, Yu., Wilkin, C., Workman, R. L., and Wustner, P. Measurement of the absolute differential cross section of proton–proton elastic scattering at small angles. United States: N. p., 2016.
Web. doi:10.1016/j.physletb.2016.01.066.
Mchedlishvili, D., Chiladze, D., Dymov, S., Bagdasarian, Z., Barsov, S., Gebel, R., Gou, B., Hartmann, M., Kacharava, A., Keshelashvili, I., Khoukaz, A., Kulessa, P., Kulikov, A., Lehrach, A., Lomidze, N., Lorentz, B., Maier, R., Macharashvili, G., Merzliakov, S., Mikirtychyants, S., Nioradze, M., Ohm, H., Prasuhn, D., Rathmann, F., Serdyuk, V., Schroer, D., Shmakova, V., Stassen, R., Stein, H. J., Stockhorst, H., Strakovsky, I. I., Stroher, H., Tabidze, M., Taschner, A., Trusov, S., Tsirkov, D., Uzikov, Yu., Valdau, Yu., Wilkin, C., Workman, R. L., & Wustner, P. Measurement of the absolute differential cross section of proton–proton elastic scattering at small angles. United States. https://doi.org/10.1016/j.physletb.2016.01.066
Mchedlishvili, D., Chiladze, D., Dymov, S., Bagdasarian, Z., Barsov, S., Gebel, R., Gou, B., Hartmann, M., Kacharava, A., Keshelashvili, I., Khoukaz, A., Kulessa, P., Kulikov, A., Lehrach, A., Lomidze, N., Lorentz, B., Maier, R., Macharashvili, G., Merzliakov, S., Mikirtychyants, S., Nioradze, M., Ohm, H., Prasuhn, D., Rathmann, F., Serdyuk, V., Schroer, D., Shmakova, V., Stassen, R., Stein, H. J., Stockhorst, H., Strakovsky, I. I., Stroher, H., Tabidze, M., Taschner, A., Trusov, S., Tsirkov, D., Uzikov, Yu., Valdau, Yu., Wilkin, C., Workman, R. L., and Wustner, P. Wed .
"Measurement of the absolute differential cross section of proton–proton elastic scattering at small angles". United States. https://doi.org/10.1016/j.physletb.2016.01.066. https://www.osti.gov/servlets/purl/1262051.
@article{osti_1262051,
title = {Measurement of the absolute differential cross section of proton–proton elastic scattering at small angles},
author = {Mchedlishvili, D. and Chiladze, D. and Dymov, S. and Bagdasarian, Z. and Barsov, S. and Gebel, R. and Gou, B. and Hartmann, M. and Kacharava, A. and Keshelashvili, I. and Khoukaz, A. and Kulessa, P. and Kulikov, A. and Lehrach, A. and Lomidze, N. and Lorentz, B. and Maier, R. and Macharashvili, G. and Merzliakov, S. and Mikirtychyants, S. and Nioradze, M. and Ohm, H. and Prasuhn, D. and Rathmann, F. and Serdyuk, V. and Schroer, D. and Shmakova, V. and Stassen, R. and Stein, H. J. and Stockhorst, H. and Strakovsky, I. I. and Stroher, H. and Tabidze, M. and Taschner, A. and Trusov, S. and Tsirkov, D. and Uzikov, Yu. and Valdau, Yu. and Wilkin, C. and Workman, R. L. and Wustner, P.},
abstractNote = {The differential cross section for proton-proton elastic scattering has been measured at a beam energy of 1.0 GeV and in 200 MeV steps from 1.6 to 2.8 GeV for centre-of-mass angles in the range from 12°–16° to 25°–30°, depending on the energy. Absolute normalisations of typically 3% were achieved by studying the energy losses of the circulating beam of the COSY storage ring as it passed repeatedly through the windowless hydrogen target of the ANKE magnetic spectrometer. It is shown that the data have a significant impact upon a partial wave analysis. Furthermore, after extrapolating the differential cross sections to the forward direction, the results are broadly compatible with the predictions of forward dispersion relations.},
doi = {10.1016/j.physletb.2016.01.066},
journal = {Physics Letters. B},
number = C,
volume = 755,
place = {United States},
year = {Wed Feb 03 00:00:00 EST 2016},
month = {Wed Feb 03 00:00:00 EST 2016}
}
Web of Science
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Works referencing / citing this record:
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