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Pic-Eur. Phys. J. C (2014) 74:Page 77 of 241ture of your J/ polarization
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In [770], a global fit of the J/ CO LDMEs to 26 sets of inclusive J/ production yield data from 10 different ppp,  , and e+ e- experiments was done; see the second column of Table 13 for the fit results. This fit describes all data, except perhaps the two-photon scattering at LEP [1180], reasonably well. This fit is overconstrained, and practically independent of possible low- pT cuts (unless such high pT cuts are chosen that all data except hadroproduction drop out of the fit [1199]). Furthermore, the resulting LDMEs are in accordance with the velocity scaling rules predicted by NRQCD; see Table 5. Thus the fit is in itself already a nontrivial test of the NRQCD factorization conjecture, especially since the high-z photoproduction region can now also be well described, which had been plagued by divergent behavior in the earlier Born analyses [1200,1201]. However, in [1197] it was shown that these CO LDME values lead to predictions of a strong transverse J/ polarization in the hadroproduction helicity frame, which is in contrast to the precise CDF [https://dx.doi.org/10.3389/fpsyg.2017.00209 title= fpsyg.2017.00209] Tevatron run II measurement [1159]; see Fig. 33d. On the other hand, in [1183] it was shown that both the measured J/ hadroproduction cross sections and the CDF run II polarization measurement [1159] can, even at the highest measured pT values, be well described when choosing one of the three CO LDME sets listed in columns four through six of Table 13. These LDMEs, however, result in predictions for e+ e- annihilation and photoproduction which are [http://kupon123.com/members/witch93laura/activity/134951/ http://kupon123.com/members/witch93laura/activity/134951/] factors four to six above the data; see Fig. 13e . Third, the calculation [1181] is the first NLO polarization analysis to include feed-down contributions. To this end, the CO LDMEs of J/, (2S) and c J were fitted to CDF [1141,1146] and LHCb [1147,1148,1182] unpolarized production data with pT > 7 GeV; see column three of Table 13. These fit results were then used for the predictions of Fig. 33e , taking the (2S) and c J feed-down con-2981 Page 78 of 241 Table 13 Overview of different NLO fits of the CO LDMEs. Analysis [770] is a global fit to inclusive J/ yield data from 10 different pp,  p, ee, and  experiments. In [1181], fits to pp yields from CDF [1141,1146] and LHCb [1147,1148,1182] were made. In [1183], three values for their combined fit to CDF J/ yield and polarization [1158,1159] data are given: A default set, and two alternative sets. Analysis [1184] is a fit to the c2 /c1 production ratio measured by CDF Butenschoen, Kniehl [770]:O [https://dx.doi.org/10.1080/17470919.2015.1029593 title= 17470919.2015.1029593] J/ (3 S1 ) /GeV[8] O J/ (1 S0 ) /GeV3 [8] O J/ (3 S1 ) /GeV3 [8] O J/ (3 P0 ) /GeV5 [1] O(2S) (3 S1 ) /GeV3 (2S) (1 S [8] ) /GeV3 O 0 [8] O(2S) (3 S1 ) /GeV3 [8] O(2S) (3 P0 ) /GeV5 [1] O0 (3 P0 ) /GeV5 [8] O0 (3 S1 ) /GeV3 [1]Eur. Phys. J. C (2014) 74:2981 [1152]. The analyses [770] and [1183] refer only to direct J/ production, and in the analyses [1181] and [1183] pT
Pic-Eur. Phys. J. C (2014) 74:Page 77 of 241ture from the J/ polarization in photoproduction emerged. In addition, no photoproduction could be observed at HERA. For that reason, in the theory side, a brand new ep collider at a great deal larger energies and luminosities than HERA, like possibly an LHeC, would be very preferred. Alternatively, there is nevertheless no NLO calculation for J/ production in deep inelastic scattering obtainable, as, by way of example, measured most recently by H1 [1171]. f. Additional production observables The LHCb experiment with its in particular wealthy quarkonium plan has also measured totally new observables which nonetheless have to be exploited totally in theory tests: For the very first time in pp collisions the double J/ production cross section was measured [1172], as well as the production of J/ in association with charmed mesons [1173]. Like double charmonium production, J/ + cc was previously only measured at the B factories, most current in the Belle evaluation [1174], which was [https://www.medchemexpress.com/crenolanib.html Crenolanib web] essential for testing J/ production mechanisms in e+ e- production. J/ production in association with W bosons has for the very first time been measured by the ATLAS collaboration [1175]. Exclusive charmonium hadroproduction has been observed lately by CDF [1176] and LHCb [1177,1178]. Exclusive production had previously been a domain of ep experiments; see [1179] for a current update by the H1 collaboration. Another observable for which theory predictions exist is definitely the J/ production price in  scattering. This observable has previously been measured at LEP by DELPHI [1180] with extremely big uncertainties and could possibly be remeasured at an ILC. four.5.2 NLO tests of NRQCD LDME universality The phenomenological relevance on the NRQCD factorization conjecture is closely tied for the question of regardless of whether or not the LDMEs may be shown to become universal. In this section current performs will likely be reviewed which aim at examining this universality at Next-to-Leading Order (NLO) in s . In the case of c J , these tests contain just the leading [1] order from the NRQCD v expansion, formed by the n = three PJ and n = 3 S 1 states. In [https://dx.doi.org/10.1089/jir.2014.0026 title= jir.2014.0026] the case of 3 S1 quarkonia, these tests [https://dx.doi.org/10.1038/srep39151 title= srep39151] consist of the terms as much as relative order O(v four ) in the [1] v expansion, namely the n = 3 S1 colour singlet state, as [8] [8] [8] properly because the n = 1 S0 , three S1 , and 3 PJ Colour Octet (CO) states; see Table five. The relativistic corrections involving the [1] [1] P H (three S1 ) and Q H (three S1 ) LDMEs are, nonetheless, not component of those analyses, while they're of order O(v two ) and O(v four ) in the v expansion. There are actually two causes for that: 1st, the corresponding NLO calculations are far beyond the attain of existing approaches, and secondly, they are expected to provide significant contributions to hadroproduction only at m c and for photoproduction only at z  1. This behavpT ior is inferred from the behavior at LO in s [1187,1188][8]and may be understood by noting that new topologies of Feynman diagrams open up when carrying out the transition from [1] the three S1 state for the CO states, but not when calculating relativistic corrections: As an example, at leading order in s the slope in the transverse momentum distribution in [1] -8 hadroproduction is d/dpT  pT for the 3 S1 state, com[8] [8] -6 pared to d/dpT  pT for the 1 S0 and three PJ states and [8] -4 d/dpT  pT for the three S1 state.
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Версия 13:33, 2 января 2018

In [770], a global fit of the J/ CO LDMEs to 26 sets of inclusive J/ production yield data from 10 different pp, p, , and e+ e- experiments was done; see the second column of Table 13 for the fit results. This fit describes all data, except perhaps the two-photon scattering at LEP [1180], reasonably well. This fit is overconstrained, and practically independent of possible low- pT cuts (unless such high pT cuts are chosen that all data except hadroproduction drop out of the fit [1199]). Furthermore, the resulting LDMEs are in accordance with the velocity scaling rules predicted by NRQCD; see Table 5. Thus the fit is in itself already a nontrivial test of the NRQCD factorization conjecture, especially since the high-z photoproduction region can now also be well described, which had been plagued by divergent behavior in the earlier Born analyses [1200,1201]. However, in [1197] it was shown that these CO LDME values lead to predictions of a strong transverse J/ polarization in the hadroproduction helicity frame, which is in contrast to the precise CDF title= fpsyg.2017.00209 Tevatron run II measurement [1159]; see Fig. 33d. On the other hand, in [1183] it was shown that both the measured J/ hadroproduction cross sections and the CDF run II polarization measurement [1159] can, even at the highest measured pT values, be well described when choosing one of the three CO LDME sets listed in columns four through six of Table 13. These LDMEs, however, result in predictions for e+ e- annihilation and photoproduction which are http://kupon123.com/members/witch93laura/activity/134951/ factors four to six above the data; see Fig. 13e . Third, the calculation [1181] is the first NLO polarization analysis to include feed-down contributions. To this end, the CO LDMEs of J/, (2S) and c J were fitted to CDF [1141,1146] and LHCb [1147,1148,1182] unpolarized production data with pT > 7 GeV; see column three of Table 13. These fit results were then used for the predictions of Fig. 33e , taking the (2S) and c J feed-down con-2981 Page 78 of 241 Table 13 Overview of different NLO fits of the CO LDMEs. Analysis [770] is a global fit to inclusive J/ yield data from 10 different pp, p, ee, and experiments. In [1181], fits to pp yields from CDF [1141,1146] and LHCb [1147,1148,1182] were made. In [1183], three values for their combined fit to CDF J/ yield and polarization [1158,1159] data are given: A default set, and two alternative sets. Analysis [1184] is a fit to the c2 /c1 production ratio measured by CDF Butenschoen, Kniehl [770]:O title= 17470919.2015.1029593 J/ (3 S1 ) /GeV[8] O J/ (1 S0 ) /GeV3 [8] O J/ (3 S1 ) /GeV3 [8] O J/ (3 P0 ) /GeV5 [1] O(2S) (3 S1 ) /GeV3 (2S) (1 S [8] ) /GeV3 O 0 [8] O(2S) (3 S1 ) /GeV3 [8] O(2S) (3 P0 ) /GeV5 [1] O0 (3 P0 ) /GeV5 [8] O0 (3 S1 ) /GeV3 [1]Eur. Phys. J. C (2014) 74:2981 [1152]. The analyses [770] and [1183] refer only to direct J/ production, and in the analyses [1181] and [1183] pT