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Версия 05:36, 27 декабря 2017
.012 0.0126 ?0.0047 (set two) 1.16 0 0.014 0.054 (set three) 1.16 0.11 0 0 Ma, Wang, Chao :Gong, Wan, Wang, Zhang : 1.16 0.097 ?0.009 -0.0046 ?0.0013 -0.0214 ?0.0056 0.758 -0.0001 ?0.0087 0.0034 ?0.0012 0.0095 ?0.0054 0.107 0.0022 ?0.1.32 0.0497 ?0.0044 0.0022 ?0.0006 -0.0161 ?0.0.107 0.0021 ?0.tributions regularly into account. A related evaluation has lately also been performed for (1S, 2S, 3S) production . The shape of high- pT J/ hadroproduction yield can  be nicely described by the 1 S0 component alone, which automatically yields unpolarized hadroproduction. Considering the fact that at pT > ten GeV that is already all data obtainable, there is certainly no tension in between NRQCD predictions and present data when the validity with the NRQCD factorization conjecture is restricted [1/8] [1/8] and three PJ LDMEs to high sufficient pT values along with the three S1 are extremely little or perhaps place to zero, as for instance inside the sixth column of Fig. 33 (set three). This really is also the spirit of , and of your analysis , in which the NLO short CTX-0294885 biological activity distance cross sections used in  are combined with cc production via single parton fragmentation applying frag2 mentation functions at order s like a major log resummation. To summarize, none on the proposed CO LDME sets is capable to describe all the studied J/ production data sets, which poses a challenge to the LDME universality. Feasible resolutions include the following: 1. The perturbative v expansion may possibly converge also gradually. 2. NRQCD factorization might hold for exclusive, but not inclusive, production. 3. NRQCD factorization may well hold only in the region Monium . Presently, photoproduction cross sections pT are measured only as much as pT = ten GeV. 4. NRQCD factorization could possibly not hold for polarized production.four.5.three Current calculations of relativistic corrections As explained in the final section, the relativistic corrections of order O(v 2 ) inside the NRQCD v expansion have at major order in s in inclusive hadro-  and photoproduction  been shown to be significantly less significant than the CO contributions of order O(v title= jir.2014.0026 4 ) within the NRQCD v expansion. Similarly, title= srep39151 the O(v 2 )  plus the technically challenging O(v four )  relativistic corrections to gluon fragmentation into three S1 quarkonia have turned out to be smaller. The relativistic O(v 2 ) corrections to the approach e+ e- J/ +gg have, nonetheless, turned out to become between 20 and 30 [1212,1213] relative to the top order CS cross section, an enhancement comparable in size towards the O(s ) CS correction [1214,1215]. These corrections helped bring the color singlet model prediction for inclusive J/ production in e+ e- collisions in rough agreement with experimental information . Similarly, inside the exclusive course of action e+ e- J/ + c , O(s ) corrections too as relativistic corrections of O(v 2 ) had been necessary to bring the color singlet model prediction in agreement with information; see Table 14. Not too long ago, even O(s v 2 ) corrections to this procedure have already been calculated [1209,1216].