https://doi.org/10.1140/epjc/s10052-019-6567-0
Regular Article - Experimental Physics
First measurement of elastic, inelastic and total cross-section at
TeV by TOTEM and overview of cross-section data at LHC energies
TOTEM Collaboration
1
University of West Bohemia, Pilsen, Czech Republic
2
Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
3
Czech Technical University, Prague, Czech Republic
4
Helsinki Institute of Physics, University of Helsinki, Helsinki, Finland
5
Department of Physics, University of Helsinki, Helsinki, Finland
6
Wigner Research Centre for Physics, RMKI, Budapest, Hungary
7
EKU KRC, Gyöngyös, Hungary
8
INFN Sezione di Bari, Bari, Italy
9
Dipartimento Interateneo di Fisica di Bari, Bari, Italy
10
Dipartimento di Ingegneria Elettrica e dell’Informazione-Politecnico di Bari, Bari, Italy
11
INFN Sezione di Genova, Genoa, Italy
12
Università degli Studi di Genova, Genoa, Italy
13
INFN Sezione di Pisa, Pisa, Italy
14
Università degli Studi di Siena and Gruppo Collegato INFN di Siena, Siena, Italy
15
AGH University of Science and Technology, Kraków, Poland
16
Tomsk State University, Tomsk, Russia
17
CERN, Geneva, Switzerland
18
Department of Physics, Case Western Reserve University, Cleveland, OH, USA
19
The University of Kansas, Lawrence, USA
20
INRNE-BAS, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria
21
Department of Atomic Physics, ELTE University, Budapest, Hungary
22
Institute of Nuclear Physics, Polish Academy of Science, Kraków, Poland
23
Ioffe Physical-Technical Institute of Russian Academy of Sciences, St. Petersburg, Russian Federation
24
SLAC National Accelerator Laboratory, Stanford, CA, USA
* e-mail: frigyes.janos.nemes@cern.ch
Received:
6
November
2018
Accepted:
4
January
2019
Published online:
1
February
2019
The TOTEM collaboration has measured the proton–proton total cross section at with a luminosity-independent method. Using dedicated
beam optics, the Roman Pots were inserted very close to the beam. The inelastic scattering rate has been measured by the T1 and T2 telescopes during the same LHC fill. After applying the optical theorem the total proton–proton cross section is
) mb, well in agreement with the extrapolation from lower energies. This method also allows one to derive the luminosity-independent elastic and inelastic cross sections:
and
.
© CERN for the benefit of the TOTEM collaboration, 2019