Longitudinal double-spin asymmetry A 1p and spin-dependent structure function g 1p of the proton at small values of x and Q 2
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F18%3A00006371" target="_blank" >RIV/46747885:24510/18:00006371 - isvavai.cz</a>
Alternative codes found
RIV/68081731:_____/18:00494616 RIV/00216208:11320/18:10377002
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0370269318302405" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0370269318302405</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2018.03.044" target="_blank" >10.1016/j.physletb.2018.03.044</a>
Alternative languages
Result language
angličtina
Original language name
Longitudinal double-spin asymmetry A 1p and spin-dependent structure function g 1p of the proton at small values of x and Q 2
Original language description
© 2018 The Author(s) We present a precise measurement of the proton longitudinal double-spin asymmetry A 1p and the proton spin-dependent structure function g 1p at photon virtualities 0.006(GeV/c) 2 <Q 2 <1(GeV/c) 2 in the Bjorken x range of 4×10 −5 <x<4×10 −2 . The results are based on data collected by the COMPASS Collaboration at CERN using muon beam energies of 160GeV and 200GeV. The statistical precision is more than tenfold better than that of the previous measurement in this region. In the whole range of x, the measured values of A 1p and g 1p are found to be positive. It is for the first time that spin effects are found at such low values of x.
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
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
781
Issue of the periodical within the volume
781
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
6
Pages from-to
464-472
UT code for WoS article
000435653100059
EID of the result in the Scopus database
2-s2.0-85045934608