The SPD experiment at NICA projects that charmonium, open charm, and prompt photon measurements will constrain gluon TMDs and halve the uncertainty on the proton's gluon helicity distribution at high x.
Possible studies at the first stage of the NICA collider operation with polarized and unpolarized proton and deuteron beams
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abstract
This paper contains suggestions for experiments with usage of the Spin Physics Detector (SPD) at the first stage of the SPD NICA Programme developing at JINR. Double polarized pp-, dd- and pd- collisions at c.m.s. NN energies of 3.4-10 GeV, which will be accessible at the initial stage of experiments, allow one to study spin dependence of the NN interaction, search for multiquark states at double strangeness, charm and beauty thresholds, study the short-range structure of the deuteron. Double polarized pd scattering offer a possibility to test the Standard Model through the search for T-invariance violation.
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Spin Physics at NICA SPD
The SPD experiment at NICA projects that charmonium, open charm, and prompt photon measurements will constrain gluon TMDs and halve the uncertainty on the proton's gluon helicity distribution at high x.