Drell-Yan process in p+Pb collisions at the LHC
(2016) In Proceedings of Science Part F128560.- Abstract
We study the initial-state interactions (non-coherence) and nuclear shadowing (coherence) effects in the Drell-Yan pair production process in p+Pb collisions at the LHC energies. The analysis of the nuclear suppression, RpA < 1, has been performed in the color dipole approach in the large coherence length approximation. The Z0 boson contribution relevant at large dilepton invariant masses has been included. We showed that the initial-state interactions cause a strong suppression at large pT, large dilepton masses and forward rapidities leading to a breakdown of QCD factorisation that can be verified by LHC measurements. The nuclear effects on the correlation function C(Δφ) in azimuthal angle Δφ... (More)
We study the initial-state interactions (non-coherence) and nuclear shadowing (coherence) effects in the Drell-Yan pair production process in p+Pb collisions at the LHC energies. The analysis of the nuclear suppression, RpA < 1, has been performed in the color dipole approach in the large coherence length approximation. The Z0 boson contribution relevant at large dilepton invariant masses has been included. We showed that the initial-state interactions cause a strong suppression at large pT, large dilepton masses and forward rapidities leading to a breakdown of QCD factorisation that can be verified by LHC measurements. The nuclear effects on the correlation function C(Δφ) in azimuthal angle Δφ between dilepton pair and a forward pion have been discussed as well. We predict a characteristic double-peak structure of C(Δφ) for very forward pions and large-mass dilepton pairs.
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- author
- Krelina, Michal ; Basso, Eduardo ; Goncalves, Victor P. LU ; Nemchik, Jan and Pasechnik, Roman LU
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Proceedings of Science
- volume
- Part F128560
- publisher
- Sissa Medialab srl
- external identifiers
-
- scopus:85025806242
- ISSN
- 1824-8039
- language
- English
- LU publication?
- yes
- id
- 75407519-e31d-4d97-a78a-3f857bff6e44
- alternative location
- http://inspirehep.net/record/1589628
- date added to LUP
- 2017-08-02 10:41:56
- date last changed
- 2022-06-19 23:39:39
@article{75407519-e31d-4d97-a78a-3f857bff6e44, abstract = {{<p>We study the initial-state interactions (non-coherence) and nuclear shadowing (coherence) effects in the Drell-Yan pair production process in p+Pb collisions at the LHC energies. The analysis of the nuclear suppression, R<sub>pA</sub> < 1, has been performed in the color dipole approach in the large coherence length approximation. The Z<sup>0</sup> boson contribution relevant at large dilepton invariant masses has been included. We showed that the initial-state interactions cause a strong suppression at large p<sub>T</sub>, large dilepton masses and forward rapidities leading to a breakdown of QCD factorisation that can be verified by LHC measurements. The nuclear effects on the correlation function C(Δφ) in azimuthal angle Δφ between dilepton pair and a forward pion have been discussed as well. We predict a characteristic double-peak structure of C(Δφ) for very forward pions and large-mass dilepton pairs.</p>}}, author = {{Krelina, Michal and Basso, Eduardo and Goncalves, Victor P. and Nemchik, Jan and Pasechnik, Roman}}, issn = {{1824-8039}}, language = {{eng}}, publisher = {{Sissa Medialab srl}}, series = {{Proceedings of Science}}, title = {{Drell-Yan process in p+Pb collisions at the LHC}}, url = {{http://inspirehep.net/record/1589628}}, volume = {{Part F128560}}, year = {{2016}}, }