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However, the available experimental data show that the cross sections for $\\chi_c(1^+)$ and $\\chi_c(2^+)$ are comparable. We therefore investigate four other $\\chi(1^+)$ production mechanisms: namely, (i) the standard NLO process $gg\\to\\chi_{c,b}(1^+)+g$, (ii) via gluon virtuality, (iii) via gluon reggeization and, finally, (iv) the"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1506.08618","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-06-29T13:37:56Z","cross_cats_sorted":[],"title_canon_sha256":"124011164dba442954fe03e1aa8f44c5e239b52a1b4076b9c2c4a11decaaa7ac","abstract_canon_sha256":"191b489e5f31c2c8d8574c2b15dc5b935d302a50dc3b17f2c265ae8c7f8b0cdd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:55.252633Z","signature_b64":"DLMEwqy4kpTYNsAvOJYgVUmPGxxVmYDrvH7j4sfyN3wf4pRS2xIvXbdSYJggL/mKtcqHtgiosgI9YJJAu5ExDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"176c5c385331af54ac3004f37bfe72f4d8b2a5533ced16a18937173310736ff3","last_reissued_at":"2026-05-18T01:21:55.251962Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:55.251962Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Inclusive prompt $\\chi_{c,b}(1^{++})$ production at the LHC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.D. Martin, A.G. Shuvaev, M.G. Ryskin, V.A. Khoze","submitted_at":"2015-06-29T13:37:56Z","abstract_excerpt":"We study the prompt production of the $\\chi_c(1^+)$ and $\\chi_b(1^+)$ mesons at high energies. Unlike $\\chi(0^+,2^+)$ production, $\\chi (1^+)$ mesons cannot be created at LO via the fusion of two on-mass-shell gluons, that is $gg\\to\\chi_{c,b}(1^+)$ are not allowed. However, the available experimental data show that the cross sections for $\\chi_c(1^+)$ and $\\chi_c(2^+)$ are comparable. 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