TY - GEN
T1 - The Origin of the Nucleon Mass
AU - Lorcé, Cédric
N1 - Publisher Copyright:
© Springer Nature Switzerland AG 2020.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - It is often claimed that 98% of the nucleon mass is generated by quantum chromodynamics. The decomposition of the nucleon mass based on the trace of the energy-momentum tensor suggests that gluons play by far a dominant role. About 25 years ago, Ji proposed another decomposition based on the energy component of the energy-momentum tensor, leading to a quite different picture. Recently, we critically revisited these decompositions and argued that both overlooked pressure effects. In particular we showed that Ji’s decomposition, although mathematically correct, makes little sense from a physical point of view. We identify the proper mass decomposition along with a balance equation for the pressure forces.
AB - It is often claimed that 98% of the nucleon mass is generated by quantum chromodynamics. The decomposition of the nucleon mass based on the trace of the energy-momentum tensor suggests that gluons play by far a dominant role. About 25 years ago, Ji proposed another decomposition based on the energy component of the energy-momentum tensor, leading to a quite different picture. Recently, we critically revisited these decompositions and argued that both overlooked pressure effects. In particular we showed that Ji’s decomposition, although mathematically correct, makes little sense from a physical point of view. We identify the proper mass decomposition along with a balance equation for the pressure forces.
U2 - 10.1007/978-3-030-32357-8_100
DO - 10.1007/978-3-030-32357-8_100
M3 - Conference contribution
AN - SCOPUS:85078452381
SN - 9783030323561
T3 - Springer Proceedings in Physics
SP - 635
EP - 641
BT - Recent Progress in Few-Body Physics - Proceedings of the 22nd International Conference on Few-Body Problems in Physics, FB22 2018
A2 - Orr, N.A.
A2 - Marqués, F.M.
A2 - Ploszajczak, M.
A2 - Carbonell, J.
PB - Springer
T2 - 22nd International Conference on Few-Body Problems in Physics, FB22 2018
Y2 - 9 July 2018 through 13 July 2018
ER -