Impact of heavy-flavour production cross sections measured by the LHCb experiment on parton distribution functions at low x
The impact of recent measurements of heavy-flavour production in deep inelastic ep scattering and in pp collisions on parton distribution functions is studied in a QCD analysis in the fixed-flavour number scheme at next-to-leading order. Differential cross sections of charm- and beauty-hadron production measured by LHCb are used together with inclusive and heavy-flavour production cross sections in deep inelastic scattering at HERA. The heavy-flavour data of the LHCb experiment impose additional constraints on the gluon and the sea-quark distributions at low partonic fractions x of the proton momentum, down to x~5×10 -6. This kinematic range is currently not covered by other experimental data in perturbative QCD fits.
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- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
- Univ. of Oxford, Oxford (United Kingdom)
- Univ. Hamburg, Hamburg (Germany)
- Univ. of Manchester, Manchester (United Kingdom)
- Southern Methodist Univ., Dallas, TX (United States)
- Karlsruhe Inst. of Technology (KIT), Karlsruhe (Germany)
- LPSC Grenoble, Grenoble (France)
- Publication Date:
- Grant/Contract Number:
- SC0013681
- Type:
- Accepted Manuscript
- Journal Name:
- European Physical Journal. C, Particles and Fields
- Additional Journal Information:
- Journal Volume: 75; Journal Issue: 8; Journal ID: ISSN 1434-6044
- Publisher:
- Springer
- Research Org:
- Southern Methodist Univ., Dallas, TX (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
- OSTI Identifier:
- 1257283
Zenaiev, O., Geiser, A., Lipka, K., Blumlein, J., Cooper-Sarkar, A., Garzelli, M. -V., Guzzi, M., Kuprash, O., Moch, S. -O., Nadolsky, P., Placakyte, R., Rabbertz, K., Schienbein, I., and Starovoitov, P.. Impact of heavy-flavour production cross sections measured by the LHCb experiment on parton distribution functions at low x. United States: N. p.,
Web. doi:10.1140/epjc/s10052-015-3618-z.
Zenaiev, O., Geiser, A., Lipka, K., Blumlein, J., Cooper-Sarkar, A., Garzelli, M. -V., Guzzi, M., Kuprash, O., Moch, S. -O., Nadolsky, P., Placakyte, R., Rabbertz, K., Schienbein, I., & Starovoitov, P.. Impact of heavy-flavour production cross sections measured by the LHCb experiment on parton distribution functions at low x. United States. doi:10.1140/epjc/s10052-015-3618-z.
Zenaiev, O., Geiser, A., Lipka, K., Blumlein, J., Cooper-Sarkar, A., Garzelli, M. -V., Guzzi, M., Kuprash, O., Moch, S. -O., Nadolsky, P., Placakyte, R., Rabbertz, K., Schienbein, I., and Starovoitov, P.. 2015.
"Impact of heavy-flavour production cross sections measured by the LHCb experiment on parton distribution functions at low x". United States.
doi:10.1140/epjc/s10052-015-3618-z. https://www.osti.gov/servlets/purl/1257283.
@article{osti_1257283,
title = {Impact of heavy-flavour production cross sections measured by the LHCb experiment on parton distribution functions at low x},
author = {Zenaiev, O. and Geiser, A. and Lipka, K. and Blumlein, J. and Cooper-Sarkar, A. and Garzelli, M. -V. and Guzzi, M. and Kuprash, O. and Moch, S. -O. and Nadolsky, P. and Placakyte, R. and Rabbertz, K. and Schienbein, I. and Starovoitov, P.},
abstractNote = {The impact of recent measurements of heavy-flavour production in deep inelastic ep scattering and in pp collisions on parton distribution functions is studied in a QCD analysis in the fixed-flavour number scheme at next-to-leading order. Differential cross sections of charm- and beauty-hadron production measured by LHCb are used together with inclusive and heavy-flavour production cross sections in deep inelastic scattering at HERA. The heavy-flavour data of the LHCb experiment impose additional constraints on the gluon and the sea-quark distributions at low partonic fractions x of the proton momentum, down to x~5×10-6. This kinematic range is currently not covered by other experimental data in perturbative QCD fits.},
doi = {10.1140/epjc/s10052-015-3618-z},
journal = {European Physical Journal. C, Particles and Fields},
number = 8,
volume = 75,
place = {United States},
year = {2015},
month = {8}
}
- Free Publicly Accessible Full Text
-
Accepted Manuscript (DOE)
- Publisher's Version of Record
- https://doi.org/10.1140/epjc/s10052-015-3618-z