Inclusive prompt $$\chi _{c,b}(1^{++})$$ χ c , b ( 1 + + ) production at the LHC

Shuvaev, A.G.; Khoze, V.A.; Martin, A.D.; Ryskin, M.G.

Abstract

We study the prompt production of the χc(1+) and χb(1+) mesons at high energies. Unlike χ(0+,2+) production, χ(1+) mesons cannot be created at LO via the fusion of two on-mass-shell gluons, that is, gg→χc,b(1+) are not allowed. However, the available experimental data show that the cross sections for χc(1+) and χc(2+) are comparable. We therefore investigate four other χ(1+) production mechanisms: namely, (i) the standard NLO process gg→χc,b(1+)+g , (ii) via gluon virtuality, (iii) via gluon reggeisation and, finally, (iv) the possibility to form χc,b(1+) by the fusion of three gluons, where one extra gluon comes from another parton cascade, as in the Double Parton Scattering processes.

Citation

Shuvaev, A., Khoze, V., Martin, A., & Ryskin, M. (2015). Inclusive prompt $$\chi _{c,b}(1^{++})$$ χ c , b ( 1 + + ) production at the LHC. The European Physical Journal C, 75(12), Article 616. https://doi.org/10.1140/epjc/s10052-015-3840-8

• Journal Article Type: Article
• Acceptance Date: Dec 11, 2015
• Publication Date: Dec 31, 2015
• Deposit Date: Apr 18, 2019
• Publicly Available Date: Apr 18, 2019
• Journal: European Physical Journal C: Particles and Fields
• Print ISSN: 1434-6044
• Electronic ISSN: 1434-6052
• Publisher: SpringerOpen
• Peer Reviewed: Peer Reviewed
• Volume: 75
• Issue: 12
• Article Number: 616
• DOI: https://doi.org/10.1140/epjc/s10052-015-3840-8