K- over K multiplicity ratio for kaons produced in DIS with a large fraction of the virtual-photon energy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F18%3A00006373" target="_blank" >RIV/46747885:24510/18:00006373 - isvavai.cz</a>
Alternative codes found
RIV/68081731:_____/18:00497574 RIV/68407700:21230/18:00324688 RIV/68407700:21340/18:00324688 RIV/00216208:11320/18:10447623
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0370269318307536" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0370269318307536</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2018.09.052" target="_blank" >10.1016/j.physletb.2018.09.052</a>
Alternative languages
Result language
angličtina
Original language name
K- over K multiplicity ratio for kaons produced in DIS with a large fraction of the virtual-photon energy
Original language description
© 2018 The Author(s) The K − over K multiplicity ratio is measured in deep-inelastic scattering, for the first time for kaons carrying a large fraction z of the virtual-photon energy. The data were obtained by the COMPASS collaboration using a 160 GeV muon beam and an isoscalar 6 LiD target. The regime of deep-inelastic scattering is ensured by requiring Q 2 >1(GeV/c) 2 for the photon virtuality and W>5GeV/c 2 for the invariant mass of the produced hadronic system. Kaons are identified in the momentum range from 12 GeV/c to 40 GeV/c, thereby restricting the range in Bjorken-x to 0.010.75. For very large values of z, i.e. z>0.8, we observe the kaon multiplicity ratio to fall below the lower limits expected from calculations based on leading and next-to-leading order perturbative quantum chromodynamics. Also, the kaon multiplicity ratio shows a strong dependence on the missing mass of the single-kaon production process. This suggests that within the perturbative quantum chromodynamics formalism an additional correction may be required, which takes into account the phase space available for hadronisation.
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
—
Volume of the periodical
786
Issue of the periodical within the volume
786
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
390-398
UT code for WoS article
000452318400053
EID of the result in the Scopus database
2-s2.0-85055660110