Measurement of the total cross section and ρ-parameter from elastic scattering in pp collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476550" target="_blank" >RIV/00216208:11320/23:10476550 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=fOzb8DY7.r" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=fOzb8DY7.r</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-023-11436-8" target="_blank" >10.1140/epjc/s10052-023-11436-8</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the total cross section and ρ-parameter from elastic scattering in pp collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector
Original language description
In a special run of the LHC with β = 2.5 km, proton-proton elastic-scattering events were recorded at CMS = 13 TeV with an integrated luminosity of 340 μb-1using the ALFA subdetector of ATLAS in 2016. The elasticcross section was measured differentially in the Mandelstamt variable in the range from -t = 2.5 . 10-4 GeV2to -t = 0.46 GeV2 using 6.9 million elastic-scatteringcandidates. This paper presents measurements of the totalcross section σtot, parameters of the nuclear slope, and the ρ-parameter defined as the ratio of the real part to the imaginarypart of the elastic-scattering amplitude in the limit t RIGHTWARDS ARROW 0.These parameters are determined from a fit to the differentialelastic cross section using the optical theorem and differentparameterizations of the t-dependence. The results for σtotand ρ areσtot(pp RIGHTWARDS ARROW X) = 104.7 +- 1.1 mb, ρ= 0.098 +- 0.011.The uncertainty in σtot is dominated by the luminosity measurement, and in ρ by imperfect knowledge of the detector alignment and by modelling of the nuclear amplitude.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10300 - Physical sciences
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
83
Issue of the periodical within the volume
Neuveden
Country of publishing house
DE - GERMANY
Number of pages
49
Pages from-to
441
UT code for WoS article
001104629900004
EID of the result in the Scopus database
2-s2.0-85160419394