EPJ Web Conf.
Volume 125, 201619th International Seminar on High Energy Physics (QUARKS-2016)
|Number of page(s)||17|
|Section||4. Quantum Chromodynamics and strong interactions|
|Published online||28 October 2016|
Proton structure, its spin and tensor gluons
Demokritos National Research Center, Ag. Paraskevi, Athens, Greece
Published online: 28 October 2016
We assume that inside the hadrons there are additional partons - tensorgluons - which carry the same charges as the gluons, but have larger spin. That assumption leads to a possible contribution of polarised tensorgluon density to the spin of the nucleon. The nonzero density of tensorgluons can be created inside a nucleon by radiation of tensorgluons by gluons. Tensorgluons can carry a part of nucleon momentum together with gluons. Because tensorgluons have a larger spin, they can influence the spin structure of the nucleon. This contribution appears in the next to leading order, compared to the gluons and can provide a substantial screening effect due to the larger spin of tensorgluons.
© The Authors, published by EDP Sciences, 2016
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