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- W2953099406 abstract "We study $chi_{c1}(2P)$ inclusive hadroproduction at next-to-leading order (NLO), both in $alpha_s$ and $v^2$, within the factorization formalism of nonrelativistic quantum chromodynamics (NRQCD), including the color-singlet $^3P_1^{[1]}$ and color-octet $^3S_1^{[8]}$ $cbar c$ Fock states as well as the mixing of the latter with the $^3D_1^{[8]}$ state. Assuming the recently discovered X(3872) hadron to be the $J^{PC}=1^{++}$ charmonium state $chi_{c1}(2P)$, we perform a fit to the cross sections measured by the CDF, CMS, and LHCb Collaborations. We either obtain an unacceptably high value of $chi^2$, a value of $|R_{2P}^prime(0)|$ incompatible with well-established potential models, or an intolerable violation of the NRQCD velocity rules. We thus conclude that NLO NRQCD is inconsistent with the hypothesis $X(3872)equivchi_{c1}(2P)$." @default.
- W2953099406 created "2019-06-27" @default.
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- W2953099406 date "2013-03-26" @default.
- W2953099406 modified "2023-09-27" @default.
- W2953099406 title "NLO NRQCD disfavors the interpretation of X(3872) as $chi_{c1}(2P)$" @default.
- W2953099406 hasPublicationYear "2013" @default.
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