Energy-momentum tensor in the scalar diquark model

Autor: Amor-Quiroz, Arturo, Focillon, William, Lorcé, Cédric, Rodini, Simone

We compute all the gravitational form factors in the scalar diquark model at the one-loop level using two different regularization methods. We check explicitly that all the Poincar\'e sum rules are satisfied and we discuss in detail the results for t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a25445b6b95cac57a5ef74cd40e4806
http://arxiv.org/abs/2304.10339

When Color meets Gravity; Near-Threshold Exclusive $J/\psi$ Photoproduction on the Proton

Autor: Duran, B., Meziani, Z.-E., Joosten, S., Jones, M.K., Prasad, S., Peng, C., Armstrong, W., Atac, H., Chudakov, E., Bhatt, H., Bhetuwal, D., Boer, M., Camsonne, A., Chen, J.-P., Dalton, M., Deokar, N., Diefenthaler, M., Dunne, J., El Fassi, L., Fuchey, E., Gao, H., Gaskell, D., Hansen, O., Hauenstein, F., Higinbotham, D., Jia, S., Karki, A., Keppel, C., King, P., Ko, H.S., Li, X., Li, R., Mack, D., Malace, S., Mccaughan, M., Mcclellan, R.E., Michaels, R., Meekins, D., Pentchev, L., Pooser, E., Puckett, A., Radloff, R., Rehfuss, M., Reimer, P.E., Riordan, S., Sawatzky, B., Smith, A., Sparveris, N., Szumila-Vance, H., Wood, S., Xie, J., Ye, Z., Yero, C., Zhao, Z.

The proton is one of the main building blocks of all visible matter in the universe. Among its intrinsic properties are its electric charge, mass, and spin. These emerge from the complex dynamics of its fundamental constituents, quarks and gluons, de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______166::c1098b3d06ae3b31f0f4607097af7407
https://hal.science/hal-03739207

Universality of the Poincaré gravitational form factor constraints

Autor: Peter Lowdon, Cédric Lorcé

Publikováno v: European Physical Journal C: Particles and Fields
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2020, 80 (3), pp.207. ⟨10.1140/epjc/s10052-020-7779-z⟩
European Physical Journal C: Particles and Fields, Vol 80, Iss 3, Pp 1-8 (2020)
Eur.Phys.J.C
Eur.Phys.J.C, 2020, 80 (3), pp.207. ⟨10.1140/epjc/s10052-020-7779-z⟩
European Physical Journal

Relativistic spin states are convention dependent. In this work we prove that the zero momentum-transfer limits of the leading two form factors in the decomposition of the energy-momentum tensor matrix elements are independent of this choice. In part

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b56a2e5a413a1bb1b2355988183b3e7a
https://doi.org/10.1140/epjc/s10052-020-7779-z

The energy-momentum tensor of spin-1 hadrons: formalism

Autor: Adam Freese, Cédric Lorcé, Wim Cosyn, Sabrina Cotogno

Publikováno v: Eur.Phys.J.C
Eur.Phys.J.C, 2019, 79 (6), pp.476. ⟨10.1140/epjc/s10052-019-6981-3⟩
European Physical Journal C: Particles and Fields
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2019, 79 (6), pp.476. ⟨10.1140/epjc/s10052-019-6981-3⟩
EUROPEAN PHYSICAL JOURNAL C
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 79, Iss 6, Pp 1-14 (2019)

We provide the complete decomposition of the local gauge-invariant energy-momentum tensor for spin-1 hadrons, including non-conserved terms for the individual parton flavors and antisymmetric contributions originating from intrinsic spin. We state su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66dfcd2f0551c11309a939a248a35876