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Title: Elastic differential cross-section measurement at $$\sqrt{s}=13$$ TeV by TOTEM

Abstract

The TOTEM collaboration has measured the elastic proton-proton differential cross section dσ/d t at √s = 13 TeV LHC energy using dedicated β* = 90 m beam optics. The Roman Pot detectors were inserted to 10σ distance from the LHC beam, which allowed the measurement of the range [0.04 GeV 2; 4 GeV 2] in four-momentum transfer squared | t|. The efficient data acquisition allowed to collect about 10 9 elastic events to precisely measure the differential cross-section including the diffractive minimum (dip), the subsequent maximum (bump) and the large-| t| tail. The average nuclear slope has been found to be B = (20.40 ± 0.002 stat ± 0.01syst) GeV –2 in the | t|-range 0.04–0.2 GeV 2. The dip position is | t dip| = (0.47 ± 0.004 stat ± 0.01 syst) GeV 2. The differential cross section ratio at the bump vs. at the dip R = 1.77 ± 0.01 stat has been measured with high precision. The series of TOTEM elastic pp measurements show that the dip is a permanent feature of the pp differential cross-section at the TeV scale.

Authors:
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Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
Contributing Org.:
The TOTEM Collaboration
OSTI Identifier:
1577321
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 79; Journal Issue: 10; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Antchev, G., Aspell, P., Atanassov, I., Avati, V., Baechler, J., Barrera, C. Baldenegro, Berardi, V., Berretti, M., Bossini, E., Bottigli, U., Bozzo, M., Burkhardt, H., Cafagna, F. S., Catanesi, M. G., Csanád, M., Csörgő, T., Deile, M., De Leonardis, F., Doubek, M., Druzhkin, D., Eggert, K., Eremin, V., Ferro, F., Fiergolski, A., Garcia, F., Georgiev, V., Giani, S., Grzanka, L., Hammerbauer, J., Ivanchenko, V., Kašpar, J., Kopal, J., Kundrát, V., Lami, S., Latino, G., Lauhakangas, R., Lindsey, C., Lokajíček, M. V., Losurdo, L., Vetere, M. Lo, Rodríguez, F. Lucas, Macrí, M., Malawski, M., Minafra, N., Minutoli, S., Naaranoja, T., Nemes, F., Niewiadomski, H., Novák, T., Oliveri, E., Oljemark, F., Oriunno, M., Österberg, K., Palazzi, P., Passaro, V., Peroutka, Z., Procházka, J., Quinto, M., Radermacher, E., Radicioni, E., Ravotti, F., Robutti, E., Royon, C., Ruggiero, G., Saarikko, H., Scribano, A., Smajek, J., Snoeys, W., Sziklai, J., Taylor, C., Tcherniaev, E., Turini, N., Vacek, V., Welti, J., Williams, J., and Ciesielski, R. Elastic differential cross-section measurement at $\sqrt{s}=13$ TeV by TOTEM. United States: N. p., 2019. Web. doi:10.1140/epjc/s10052-019-7346-7.
Antchev, G., Aspell, P., Atanassov, I., Avati, V., Baechler, J., Barrera, C. Baldenegro, Berardi, V., Berretti, M., Bossini, E., Bottigli, U., Bozzo, M., Burkhardt, H., Cafagna, F. S., Catanesi, M. G., Csanád, M., Csörgő, T., Deile, M., De Leonardis, F., Doubek, M., Druzhkin, D., Eggert, K., Eremin, V., Ferro, F., Fiergolski, A., Garcia, F., Georgiev, V., Giani, S., Grzanka, L., Hammerbauer, J., Ivanchenko, V., Kašpar, J., Kopal, J., Kundrát, V., Lami, S., Latino, G., Lauhakangas, R., Lindsey, C., Lokajíček, M. V., Losurdo, L., Vetere, M. Lo, Rodríguez, F. Lucas, Macrí, M., Malawski, M., Minafra, N., Minutoli, S., Naaranoja, T., Nemes, F., Niewiadomski, H., Novák, T., Oliveri, E., Oljemark, F., Oriunno, M., Österberg, K., Palazzi, P., Passaro, V., Peroutka, Z., Procházka, J., Quinto, M., Radermacher, E., Radicioni, E., Ravotti, F., Robutti, E., Royon, C., Ruggiero, G., Saarikko, H., Scribano, A., Smajek, J., Snoeys, W., Sziklai, J., Taylor, C., Tcherniaev, E., Turini, N., Vacek, V., Welti, J., Williams, J., & Ciesielski, R. Elastic differential cross-section measurement at $\sqrt{s}=13$ TeV by TOTEM. United States. doi:10.1140/epjc/s10052-019-7346-7.
Antchev, G., Aspell, P., Atanassov, I., Avati, V., Baechler, J., Barrera, C. Baldenegro, Berardi, V., Berretti, M., Bossini, E., Bottigli, U., Bozzo, M., Burkhardt, H., Cafagna, F. S., Catanesi, M. G., Csanád, M., Csörgő, T., Deile, M., De Leonardis, F., Doubek, M., Druzhkin, D., Eggert, K., Eremin, V., Ferro, F., Fiergolski, A., Garcia, F., Georgiev, V., Giani, S., Grzanka, L., Hammerbauer, J., Ivanchenko, V., Kašpar, J., Kopal, J., Kundrát, V., Lami, S., Latino, G., Lauhakangas, R., Lindsey, C., Lokajíček, M. V., Losurdo, L., Vetere, M. Lo, Rodríguez, F. Lucas, Macrí, M., Malawski, M., Minafra, N., Minutoli, S., Naaranoja, T., Nemes, F., Niewiadomski, H., Novák, T., Oliveri, E., Oljemark, F., Oriunno, M., Österberg, K., Palazzi, P., Passaro, V., Peroutka, Z., Procházka, J., Quinto, M., Radermacher, E., Radicioni, E., Ravotti, F., Robutti, E., Royon, C., Ruggiero, G., Saarikko, H., Scribano, A., Smajek, J., Snoeys, W., Sziklai, J., Taylor, C., Tcherniaev, E., Turini, N., Vacek, V., Welti, J., Williams, J., and Ciesielski, R. Sat . "Elastic differential cross-section measurement at $\sqrt{s}=13$ TeV by TOTEM". United States. doi:10.1140/epjc/s10052-019-7346-7. https://www.osti.gov/servlets/purl/1577321.
@article{osti_1577321,
title = {Elastic differential cross-section measurement at $\sqrt{s}=13$ TeV by TOTEM},
author = {Antchev, G. and Aspell, P. and Atanassov, I. and Avati, V. and Baechler, J. and Barrera, C. Baldenegro and Berardi, V. and Berretti, M. and Bossini, E. and Bottigli, U. and Bozzo, M. and Burkhardt, H. and Cafagna, F. S. and Catanesi, M. G. and Csanád, M. and Csörgő, T. and Deile, M. and De Leonardis, F. and Doubek, M. and Druzhkin, D. 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 Hammerbauer, J. and Ivanchenko, V. and Kašpar, J. and Kopal, J. and Kundrát, V. and Lami, S. and Latino, G. and Lauhakangas, R. and Lindsey, C. and Lokajíček, M. V. and Losurdo, L. and Vetere, M. Lo and Rodríguez, F. Lucas and Macrí, M. and Malawski, M. and Minafra, N. and Minutoli, S. and Naaranoja, T. and Nemes, F. and Niewiadomski, H. and Novák, T. and Oliveri, E. and Oljemark, F. and Oriunno, M. and Österberg, K. and Palazzi, P. and Passaro, V. and Peroutka, Z. and Procházka, J. and Quinto, M. and Radermacher, E. and Radicioni, E. and Ravotti, F. and Robutti, E. and Royon, C. and Ruggiero, G. and Saarikko, H. and Scribano, A. and Smajek, J. and Snoeys, W. and Sziklai, J. and Taylor, C. and Tcherniaev, E. and Turini, N. and Vacek, V. and Welti, J. and Williams, J. and Ciesielski, R.},
abstractNote = {The TOTEM collaboration has measured the elastic proton-proton differential cross section dσ/dt at √s = 13 TeV LHC energy using dedicated β* = 90 m beam optics. The Roman Pot detectors were inserted to 10σ distance from the LHC beam, which allowed the measurement of the range [0.04 GeV2; 4 GeV2] in four-momentum transfer squared |t|. The efficient data acquisition allowed to collect about 109 elastic events to precisely measure the differential cross-section including the diffractive minimum (dip), the subsequent maximum (bump) and the large-|t| tail. The average nuclear slope has been found to be B = (20.40 ± 0.002stat ± 0.01syst) GeV–2 in the |t|-range 0.04–0.2 GeV2. The dip position is |tdip| = (0.47 ± 0.004stat ± 0.01syst) GeV2. The differential cross section ratio at the bump vs. at the dip R = 1.77 ± 0.01stat has been measured with high precision. The series of TOTEM elastic pp measurements show that the dip is a permanent feature of the pp differential cross-section at the TeV scale.},
doi = {10.1140/epjc/s10052-019-7346-7},
journal = {European Physical Journal. C, Particles and Fields},
number = 10,
volume = 79,
place = {United States},
year = {2019},
month = {10}
}

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Works referenced in this record:

The TOTEM Experiment at the CERN Large Hadron Collider
journal, August 2008


First measurement of the total proton-proton cross-section at the LHC energy of \chem{\sqrt{s} = 7\,TeV}
journal, October 2011


Proton-proton elastic scattering at the LHC energy of \chem{\sqrt{s} = 7\,TeV}
journal, July 2011


Luminosity-Independent Measurement of the Proton-Proton Total Cross Section at s = 8 TeV
journal, July 2013


Measurement of proton-proton elastic scattering and total cross-section at \chem{\sqrt {s} = 7\,TeV}
journal, January 2013


LHC optics measurement with proton tracks detected by the Roman pots of the TOTEM experiment
journal, October 2014


Evidence for non-exponential elastic proton–proton differential cross-section at low | t | and s = 8 TeV by TOTEM
journal, October 2015


Scaling Laws at Large Transverse Momentum
journal, October 1973


Characteristics of edgeless silicon detectors for the Roman Pots of the TOTEM experiment at the LHC
journal, June 2009

  • Ruggiero, G.; Avati, V.; Antchev, G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 604, Issue 1-2
  • DOI: 10.1016/j.nima.2009.01.056