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Nuclear Theory·nucl-th

Thursday·January 13, 2022

10 papers—6 primary·4 cross-listed

All10Primary6Cross-lists4
  1. 07

    Dressed quark-gluon vertex form factors from gauge symmetry

    Bruno El-Bennich🇧🇷 · Fernando E. Serna🇨🇴 · Roberto Correa da Silveira🇧🇷 · Luis Albino🇲🇽 · Adnan Bashir🇲🇽 · Eduardo Rojas🇨🇴

    We present preliminary results on the longitudinal transverse form factors of the quark-gluon vertex as functions of the incoming and outgoing quark momenta and an angle between them. The expressions for these form factors were previously derived from Slavnov-Taylor identities, gauge covariance and multiplicative renormalizability that firmly constrain the fermion-boson vertex.

    ↳ hep-phhep-latnucl-thRev.Mex.Fis.Suppl.(2022)·12 citations
  2. 08

    Application of the weak-binding relation with range correction

    Tomona Kinugawa🇯🇵 · Tetsuo Hyodo🇯🇵

    The weak-binding relation is a useful tool to study the internal structure of hadrons from the observable quantities. We introduce the range correction in the weak-binding relation for the system having a sizable magnitude of the effective range, and show that the applicability of the weak-binding relation can be enlarged by the range correction. Thanks to the low-energy universality, the weak-binding relation can be used to study the structure of shallow bound states in any systems with different length scales. We apply the weak-binding relation to actual systems, including hadrons, hypernuclei, and atoms and show the importance of the range correction.

    ↳ hep-phnucl-thRev.Mex.Fis.Suppl.(2022)·2 citations
  3. 09

    Quarkonium in a bulk viscous QGP medium

    Lata Thakur🇰🇷 · Yuji Hirono🇰🇷 · Najmul Haque🇮🇳

    The non-equilibrium properties of quark-gluon plasma (QGP) have been a topic of intensive research. In this contribution, we explore the nature of heavy quarkonia immersed in a QGP with bulk viscosity. We incorporate the bulk viscous effect through the deformation of the distribution functions of thermal quarks and gluons, with which the color dielectric permittivity can be computed. We use the color dielectric permittivity to compute the heavy quark potential inside a bulk viscous plasma and solve the Schrödinger equation using the potential to obtain the physical properties such as binding energies and decay widths. We discuss the effect of the bulk viscous correction on the quarkonium properties and the melting temperatures.

    ↳ hep-phnucl-thRev.Mex.Fis.Suppl.(2022)·0 citations
  4. 10

    Spin Asymmetries in Electron-jet Production at the EIC

    Zhong-Bo Kang🇺🇸 · Kyle Lee🇺🇸 · Ding Yu Shao🇨🇳 · Fanyi Zhao🇺🇸

    We investigate all the possible spin asymmetries that can occur in back-to-back electron-jet production with hadron observed inside a jet in electron-proton collisions. We derive the factorization formalism for all spin asymmetries and perform phenomenological studies for the future electron ion collider kinematics. We illustrate that the back-to-back electron-jet production opens up new opportunities to study transverse momentum dependent fragmentation functions and distribution functions.

    ↳ hep-phhep-exnucl-exnucl-thJPS Conf.Proc.(2022)·8 citations

Affiliations

first authorsco-authorsvia INSPIRE