Exclusive production of χ c(0 +) meson and its measurement in the π +π - channel
(2011) In Nuclear Physics B - Proceedings Supplements 219-220. p.284-287- Abstract
We report on the results of a theoretical study of the central exclusive production of scalar χ c(0 +) meson via χ c0→π +π - decay in high-energy hadron collisions at the RHIC, Tevatron and LHC. The corresponding amplitude for exclusive double-diffractive χ c0 meson production was obtained within the k t-factorization approach including virtualities of active gluons and the cross section is calculated with unintegrated gluon distribution functions (UGDFs) known from the literature. The four-body pp→ppπ +π - reaction constitutes an irreducible background to the exclusive χ c0 meson production. We include the absorption effects... (More)
We report on the results of a theoretical study of the central exclusive production of scalar χ c(0 +) meson via χ c0→π +π - decay in high-energy hadron collisions at the RHIC, Tevatron and LHC. The corresponding amplitude for exclusive double-diffractive χ c0 meson production was obtained within the k t-factorization approach including virtualities of active gluons and the cross section is calculated with unintegrated gluon distribution functions (UGDFs) known from the literature. The four-body pp→ppπ +π - reaction constitutes an irreducible background to the exclusive χ c0 meson production. We include the absorption effects due to proton-proton interaction and pion-pion rescattering. Several differential distributions for pp(p̄)→pp(p̄)χc0 process, including the absorptive corrections, were calculated. The influence of kinematical cuts on the signal-to-background ratio is investigated.
(Less)
- author
- Lebiedowicz, P. ; Pasechnik, R. LU and Szczurek, A.
- organization
- publishing date
- 2011-10
- type
- Contribution to journal
- publication status
- published
- keywords
- χ (0 )→π π decay, Diffractive processes, Two-pion continuum
- in
- Nuclear Physics B - Proceedings Supplements
- volume
- 219-220
- pages
- 4 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:84855741328
- ISSN
- 0920-5632
- DOI
- 10.1016/j.nuclphysbps.2011.10.112
- language
- English
- LU publication?
- yes
- id
- c4300ac9-dca4-4e0e-847f-26c17f63c260
- date added to LUP
- 2016-08-18 20:15:38
- date last changed
- 2024-01-04 11:09:02
@article{c4300ac9-dca4-4e0e-847f-26c17f63c260,
abstract = {{<p>We report on the results of a theoretical study of the central exclusive production of scalar χ <sub>c</sub>(0 <sup>+</sup>) meson via χ <sub>c0</sub>→π <sup>+</sup>π <sup>-</sup> decay in high-energy hadron collisions at the RHIC, Tevatron and LHC. The corresponding amplitude for exclusive double-diffractive χ <sub>c0</sub> meson production was obtained within the k <sub>t</sub>-factorization approach including virtualities of active gluons and the cross section is calculated with unintegrated gluon distribution functions (UGDFs) known from the literature. The four-body pp→ppπ <sup>+</sup>π <sup>-</sup> reaction constitutes an irreducible background to the exclusive χ <sub>c0</sub> meson production. We include the absorption effects due to proton-proton interaction and pion-pion rescattering. Several differential distributions for pp(p̄)→pp(p̄)χc0 process, including the absorptive corrections, were calculated. The influence of kinematical cuts on the signal-to-background ratio is investigated.</p>}},
author = {{Lebiedowicz, P. and Pasechnik, R. and Szczurek, A.}},
issn = {{0920-5632}},
keywords = {{χ (0 )→π π decay; Diffractive processes; Two-pion continuum}},
language = {{eng}},
pages = {{284--287}},
publisher = {{Elsevier}},
series = {{Nuclear Physics B - Proceedings Supplements}},
title = {{Exclusive production of χ <sub>c</sub>(0 <sup>+</sup>) meson and its measurement in the π <sup>+</sup>π <sup>-</sup> channel}},
url = {{http://dx.doi.org/10.1016/j.nuclphysbps.2011.10.112}},
doi = {{10.1016/j.nuclphysbps.2011.10.112}},
volume = {{219-220}},
year = {{2011}},
}