Transverse extension of partons in the proton probed in the sea-quark range by measuring the DVCS cross section
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F19%3A00007425" target="_blank" >RIV/46747885:24510/19:00007425 - isvavai.cz</a>
Alternative codes found
RIV/68081731:_____/19:00508853 RIV/68407700:21230/19:00331330 RIV/68407700:21340/19:00331330 RIV/00216208:11320/19:10396892
Result on the web
<a href="https://api.elsevier.com/content/article/eid/1-s2.0-S0370269319302710" target="_blank" >https://api.elsevier.com/content/article/eid/1-s2.0-S0370269319302710</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2019.04.038" target="_blank" >10.1016/j.physletb.2019.04.038</a>
Alternative languages
Result language
angličtina
Original language name
Transverse extension of partons in the proton probed in the sea-quark range by measuring the DVCS cross section
Original language description
We report on the first measurement of exclusive single-photon muoproduction on the proton by COMPASS using 160 GeV/c polarised μ and μ− beams of the CERN SPS impinging on a liquid hydrogen target. We determine the dependence of the average of the measured μ and μ− cross sections for deeply virtual Compton scattering on the squared four-momentum transfer t from the initial to the final proton. The slope B of the t-dependence is fitted with a single exponential function, which yields B=(4.3±0.6stat;sys−0.3 0.1)(GeV/c)−2. This result can be converted into a transverse extension of partons in the proton. For this measurement, the average virtuality of the photon mediating the interaction is Q=1.8(GeV/c)2 and the average value of the Bjorken variable is 0.056.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/LM2015058" target="_blank" >LM2015058: Research Infrastructure for Experiments at CERN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN
0370-2693
e-ISSN
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Volume of the periodical
793
Issue of the periodical within the volume
6
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
7
Pages from-to
188-194
UT code for WoS article
000470064800031
EID of the result in the Scopus database
2-s2.0-85064947776