22-26 July 2019
Ecole Nationale Supérieure de Chimie
Europe/Paris timezone

Mechanical properties of proton from its energy-momentum tensor

22 Jul 2019, 19:00
15m
Amphi Friedel (Ecole Nationale Supérieure de Chimie)

Amphi Friedel

Ecole Nationale Supérieure de Chimie

11 Rue Pierre et Marie Curie, 75005 Paris
Poster Physics Poster session

Speaker

Arkadiusz Trawinski (CEA-Saclay)

Description

The discovery of the relation between the quantum energy-momentum tensor (EMT) and General Parton Distributions [1, 2] provides a unique way to study the EMT of the nucleon [3,4].

It was shown that the expectation value of the EMT for an unpolarized proton target in the Breit frame has the same structure as that of an anisotropic perfect fluid density [5,6]. Thus, in this case one can identify terms related to the internal energy and transverse/radial pressure inside a proton. We illustrate these results using current phenomenological knowledge of the EMT form factors.

References
[1] X.-D. Ji; Phys.Rev. D55 (1997) 7114-7125.
[2] X.-D. Ji; Phys.Rev.Lett. 78 (1997) 610-613.
[3] M.V. Polyakov; Phys.Lett. B555 (2003) 57-62.
[4] M. Burkardt; Int.J.Mod.Phys. A18 (2003) 173-208.
[5] M.V. Polyakov, P. Schweitze; Int.J.Mod.Phys. A33 (2018) 1830025
[6] C. Lorcé, H. Moutarde, A.P. Trawiński; Eur.Phys.J. C79 (2019) 89

Primary author

Arkadiusz Trawinski (CEA-Saclay)

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