skip to main content

DOE PAGESDOE PAGES

Title: Measurement of elastic pp scattering at $$\sqrt{\hbox {s}} = \hbox {8}$$ TeV in the Coulomb–nuclear interference region: Determination of the ρ-parameter and the total cross-section

Here, the TOTEM experiment at the CERN LHC has measured elastic proton–proton scattering at the centre-of-mass energy s√=8TeV and four-momentum transfers squared, |t|, from 6 × 10 –4 to 0.2 GeV 2. Near the lower end of the t-interval the differential cross-section is sensitive to the interference between the hadronic and the electromagnetic scattering amplitudes. This article presents the elastic cross-section measurement and the constraints it imposes on the functional forms of the modulus and phase of the hadronic elastic amplitude. The data exclude the traditional Simplified West and Yennie interference formula that requires a constant phase and a purely exponential modulus of the hadronic amplitude. For parametrisations of the hadronic modulus with second- or third-order polynomials in the exponent, the data are compatible with hadronic phase functions giving either central or peripheral behaviour in the impact parameter picture of elastic scattering. In both cases, the ρ-parameter is found to be 0.12±0.03. The results for the total hadronic cross-section are σ tot = (102.9±2.3) mb and (103.0±2.3) mb for central and peripheral phase formulations, respectively. Both are consistent with previous TOTEM measurements.
Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Grant/Contract Number:
NK101438; AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 76; Journal Issue: 12; Journal ID: ISSN 1434-6044
Publisher:
Springer
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Contributing Orgs:
The TOTEM Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1358616

Antchev, G., Aspell, P., Atanassov, I., Avati, V., Baechler, J., Berardi, V., Berretti, M., Bossini, E., Bottigli, U., Bozzo, M., Broulím, P., Burkhardt, H., Buzzo, A., Cafagna, F. S., Campanella, C. E., Catanesi, M. G., Csanád, M., Csörgő, T., Deile, M., De Leonardis, F., D’Orazio, A., Doubek, M., Eggert, K., Eremin, V., Ferro, F., Fiergolski, A., Garcia, F., Georgiev, V., Giani, S., Grzanka, L., Guaragnella, C., Hammerbauer, J., Heino, J., Karev, A., Kašpar, J., Kopal, J., Kundrát, V., Lami, S., Latino, G., Lauhakangas, R., Linhart, R., Lippmaa, E., Lippmaa, J., Lokajíček, M. V., Losurdo, L., Lo Vetere, M., Lucas Rodríguez, F., Macrí, M., Mercadante, A., Minafra, N., Minutoli, S., Naaranoja, T., Nemes, F., Niewiadomski, H., Oliveri, E., Oljemark, F., Orava, R., Oriunno, M., Österberg, K., Palazzi, P., Paločko, L., Passaro, V., Peroutka, Z., Petruzzelli, V., Politi, T., Procházka, J., Prudenzano, F., Quinto, M., Radermacher, E., Radicioni, E., Ravotti, F., Redaelli, S., Robutti, E., Ropelewski, L., Ruggiero, G., Saarikko, H., Salvachua, B., Scribano, A., Smajek, J., Snoeys, W., Sziklai, J., Taylor, C., Turini, N., Vacek, V., Valentino, G., Welti, J., Wenninger, J., Wyszkowski, P., and Zielinski, K.. Measurement of elastic pp scattering at $\sqrt{\hbox {s}} = \hbox {8}$ TeV in the Coulomb–nuclear interference region: Determination of the ρ-parameter and the total cross-section. United States: N. p., Web. doi:10.1140/epjc/s10052-016-4399-8.
Antchev, G., Aspell, P., Atanassov, I., Avati, V., Baechler, J., Berardi, V., Berretti, M., Bossini, E., Bottigli, U., Bozzo, M., Broulím, P., Burkhardt, H., Buzzo, A., Cafagna, F. S., Campanella, C. E., Catanesi, M. G., Csanád, M., Csörgő, T., Deile, M., De Leonardis, F., D’Orazio, A., Doubek, M., Eggert, K., Eremin, V., Ferro, F., Fiergolski, A., Garcia, F., Georgiev, V., Giani, S., Grzanka, L., Guaragnella, C., Hammerbauer, J., Heino, J., Karev, A., Kašpar, J., Kopal, J., Kundrát, V., Lami, S., Latino, G., Lauhakangas, R., Linhart, R., Lippmaa, E., Lippmaa, J., Lokajíček, M. V., Losurdo, L., Lo Vetere, M., Lucas Rodríguez, F., Macrí, M., Mercadante, A., Minafra, N., Minutoli, S., Naaranoja, T., Nemes, F., Niewiadomski, H., Oliveri, E., Oljemark, F., Orava, R., Oriunno, M., Österberg, K., Palazzi, P., Paločko, L., Passaro, V., Peroutka, Z., Petruzzelli, V., Politi, T., Procházka, J., Prudenzano, F., Quinto, M., Radermacher, E., Radicioni, E., Ravotti, F., Redaelli, S., Robutti, E., Ropelewski, L., Ruggiero, G., Saarikko, H., Salvachua, B., Scribano, A., Smajek, J., Snoeys, W., Sziklai, J., Taylor, C., Turini, N., Vacek, V., Valentino, G., Welti, J., Wenninger, J., Wyszkowski, P., & Zielinski, K.. Measurement of elastic pp scattering at $\sqrt{\hbox {s}} = \hbox {8}$ TeV in the Coulomb–nuclear interference region: Determination of the ρ-parameter and the total cross-section. United States. doi:10.1140/epjc/s10052-016-4399-8.
Antchev, G., Aspell, P., Atanassov, I., Avati, V., Baechler, J., Berardi, V., Berretti, M., Bossini, E., Bottigli, U., Bozzo, M., Broulím, P., Burkhardt, H., Buzzo, A., Cafagna, F. S., Campanella, C. E., Catanesi, M. G., Csanád, M., Csörgő, T., Deile, M., De Leonardis, F., D’Orazio, A., Doubek, M., Eggert, K., Eremin, V., Ferro, F., Fiergolski, A., Garcia, F., Georgiev, V., Giani, S., Grzanka, L., Guaragnella, C., Hammerbauer, J., Heino, J., Karev, A., Kašpar, J., Kopal, J., Kundrát, V., Lami, S., Latino, G., Lauhakangas, R., Linhart, R., Lippmaa, E., Lippmaa, J., Lokajíček, M. V., Losurdo, L., Lo Vetere, M., Lucas Rodríguez, F., Macrí, M., Mercadante, A., Minafra, N., Minutoli, S., Naaranoja, T., Nemes, F., Niewiadomski, H., Oliveri, E., Oljemark, F., Orava, R., Oriunno, M., Österberg, K., Palazzi, P., Paločko, L., Passaro, V., Peroutka, Z., Petruzzelli, V., Politi, T., Procházka, J., Prudenzano, F., Quinto, M., Radermacher, E., Radicioni, E., Ravotti, F., Redaelli, S., Robutti, E., Ropelewski, L., Ruggiero, G., Saarikko, H., Salvachua, B., Scribano, A., Smajek, J., Snoeys, W., Sziklai, J., Taylor, C., Turini, N., Vacek, V., Valentino, G., Welti, J., Wenninger, J., Wyszkowski, P., and Zielinski, K.. 2016. "Measurement of elastic pp scattering at $\sqrt{\hbox {s}} = \hbox {8}$ TeV in the Coulomb–nuclear interference region: Determination of the ρ-parameter and the total cross-section". United States. doi:10.1140/epjc/s10052-016-4399-8. https://www.osti.gov/servlets/purl/1358616.
@article{osti_1358616,
title = {Measurement of elastic pp scattering at $\sqrt{\hbox {s}} = \hbox {8}$ TeV in the Coulomb–nuclear interference region: Determination of the ρ-parameter and the total cross-section},
author = {Antchev, G. and Aspell, P. and Atanassov, I. and Avati, V. and Baechler, J. and Berardi, V. and Berretti, M. and Bossini, E. and Bottigli, U. and Bozzo, M. and Broulím, P. and Burkhardt, H. and Buzzo, A. and Cafagna, F. S. and Campanella, C. E. and Catanesi, M. G. and Csanád, M. and Csörgő, T. and Deile, M. and De Leonardis, F. and D’Orazio, A. and Doubek, M. and Eggert, K. and Eremin, V. and Ferro, F. and Fiergolski, A. and Garcia, F. and Georgiev, V. and Giani, S. and Grzanka, L. and Guaragnella, C. and Hammerbauer, J. and Heino, J. and Karev, A. and Kašpar, J. and Kopal, J. and Kundrát, V. and Lami, S. and Latino, G. and Lauhakangas, R. and Linhart, R. and Lippmaa, E. and Lippmaa, J. and Lokajíček, M. V. and Losurdo, L. and Lo Vetere, M. and Lucas Rodríguez, F. and Macrí, M. and Mercadante, A. and Minafra, N. and Minutoli, S. and Naaranoja, T. and Nemes, F. and Niewiadomski, H. and Oliveri, E. and Oljemark, F. and Orava, R. and Oriunno, M. and Österberg, K. and Palazzi, P. and Paločko, L. and Passaro, V. and Peroutka, Z. and Petruzzelli, V. and Politi, T. and Procházka, J. and Prudenzano, F. and Quinto, M. and Radermacher, E. and Radicioni, E. and Ravotti, F. and Redaelli, S. and Robutti, E. and Ropelewski, L. and Ruggiero, G. and Saarikko, H. and Salvachua, B. and Scribano, A. and Smajek, J. and Snoeys, W. and Sziklai, J. and Taylor, C. and Turini, N. and Vacek, V. and Valentino, G. and Welti, J. and Wenninger, J. and Wyszkowski, P. and Zielinski, K.},
abstractNote = {Here, the TOTEM experiment at the CERN LHC has measured elastic proton–proton scattering at the centre-of-mass energy s√=8TeV and four-momentum transfers squared, |t|, from 6 × 10–4 to 0.2 GeV2. Near the lower end of the t-interval the differential cross-section is sensitive to the interference between the hadronic and the electromagnetic scattering amplitudes. This article presents the elastic cross-section measurement and the constraints it imposes on the functional forms of the modulus and phase of the hadronic elastic amplitude. The data exclude the traditional Simplified West and Yennie interference formula that requires a constant phase and a purely exponential modulus of the hadronic amplitude. For parametrisations of the hadronic modulus with second- or third-order polynomials in the exponent, the data are compatible with hadronic phase functions giving either central or peripheral behaviour in the impact parameter picture of elastic scattering. In both cases, the ρ-parameter is found to be 0.12±0.03. The results for the total hadronic cross-section are σtot = (102.9±2.3) mb and (103.0±2.3) mb for central and peripheral phase formulations, respectively. Both are consistent with previous TOTEM measurements.},
doi = {10.1140/epjc/s10052-016-4399-8},
journal = {European Physical Journal. C, Particles and Fields},
number = 12,
volume = 76,
place = {United States},
year = {2016},
month = {11}
}