Nuclear structure functions at a future electron-ion collider
Aschenauer, E. C., Fazio, S., Lamont, M. A. C., Paukkunen, H., & Zurita, P. (2017). Nuclear structure functions at a future electron-ion collider. Physical Review D, 96(11), Article 114005. https://doi.org/10.1103/PhysRevD.96.114005
Julkaistu sarjassa
Physical Review DPäivämäärä
2017Tekijänoikeudet
© 2017 American Physical Society. Published in this repository with the kind permission of the publisher.
The quantitative knowledge of heavy nuclei’s partonic structure is currently limited to rather large values
of momentum fraction x—robust experimental constraints below x ∼ 10−2 at low resolution scale Q2 are
particularly scarce. This is in sharp contrast to the free proton’s structure which has been probed in Deep
Inelastic Scattering (DIS) measurements down to x ∼ 10−5 at perturbative resolution scales. The
construction of an electron-ion collider (EIC) with a possibility to operate with a wide variety of nuclei,
will allow one to explore the low-x region in much greater detail. In the present paper we simulate the
extraction of the nuclear structure functions from measurements of inclusive and charm reduced cross
sections at an EIC. The potential constraints are studied by analyzing simulated data directly in a next-toleading
order global fit of nuclear Parton Distribution Functions based on the recent EPPS16 analysis. A
special emphasis is placed on studying the impact an EIC would have on extracting the nuclear gluon
parton distribution function, the partonic component most prone to nonlinear effects at low Q2
. In
comparison to the current knowledge, we find that the gluon parton distribution function can be measured
at an EIC with significantly reduced uncertainties.
...
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American Physical SocietyISSN Hae Julkaisufoorumista
2470-0010Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/27407628
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