[Clascomment] OPT-IN: First Measurement of Lambda Electroproduction off Nuclei in the Current and Target Fragmentation Regions

Stepan Stepanyan stepanya at jlab.org
Sat Sep 17 16:09:32 EDT 2022


* line 149, discussions of HRMES p_T broadening - unclear statement, “its finding was inconclusive due to the similar behavior of its A1/3 and A^{2/3} mass-dependencies.” What does this statement exactly mean? In the quoted paper [17], I could not find any reference to A dependence other than “broadening increases with mass number A.” Am I missing something here?
* line172, I assume the quoted luminosity is per nucleon? Should mention if 10^{34} is per nuclei or per nucleon.
* line 203, what does “the acceptance correction (AC) efficiency functors” mean? Perhaps this is a matter of terminology, but I believe it will be correct to say “event-by-event with the inverse of the detector efficiency.” The same comment for Fig.2 caption
* line 233, if you agree with the above, then no need for “AC,” just “3) multidimensional (5D) efficiency map ...” And on 
* line 236, “efficiency weight ...”, and all other places where “AC” should be replaced with “efficiency.” 
* references to tables in the supplementary material are fine, but should you have an explicit reference to the supplementary material itself as a citation? A reference to S6, for example, is confusing without saying where one can find the table S6.
* line 258, can you reference plots in Fig.3 from left to right? It is natural to describe things from left to right
* line 291, discussions of p_T broadening and comparison with HERMES. The speculation of the di-quark absorbing the virtual photon in the case of Lambda production and propagating with an extended color field gives a higher value of the p_T broadening. But should not the same extended color field make A-dependence stronger? The A-dependence in HERMES measurements with pions is much stronger, and the slope is larger than for CLAS Lambda. This seems to contradict the idea of the extended color field of di-quarks.


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