Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Pseudoscalar glueball mass: a window on three-gluon interactions

Full text
Author(s):
Souza, E. V. [1, 2] ; Ferreira, M. N. [3, 4, 1, 5] ; Aguilar, A. C. [1] ; Papavassiliou, J. [3, 4, 5] ; Roberts, C. D. [6, 7] ; Xu, S. -S. [8]
Total Authors: 6
Affiliation:
[1] Univ Campinas UNICAMP, Inst Phys Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[2] Fed Inst Educ Sci & Technol Piaui, BR-64605500 Picos, Piaui - Brazil
[3] Univ Valencia, Dept Theoret Phys, E-46100 Valencia - Spain
[4] Univ Valencia, IFIC, E-46100 Valencia - Spain
[5] CSIC, Valencia 46100 - Spain
[6] Nanjing Univ, Sch Phys, Nanjing 210093, Jiangsu - Peoples R China
[7] Nanjing Univ, Inst Nonperturbat Phys, Nanjing 210093, Jiangsu - Peoples R China
[8] Nanjing Univ Posts & Telecommun, Coll Sci, Nanjing 210023 - Peoples R China
Total Affiliations: 8
Document type: Journal article
Source: EUROPEAN PHYSICAL JOURNAL A; v. 56, n. 1 JAN 28 2020.
Web of Science Citations: 9
Abstract

In pure-glue QCD, gluon-gluon scattering in the J(PC) = 0(-+) channel is described by a very simple equation, especially if one considers just the leading contribution to the scattering kernel. Of all components in this kernel, only the three-gluon vertex, V-mu nu rho, is poorly constrained by contemporary analyses; hence, calculations of 0(-+) glueball properties serve as a clear window onto the character and form of V-mu nu rho. This is important given that many modern calculations of V-mu nu rho predict the appearance of an infrared suppression in the scalar function which comes to modulate the bare vertex after the nonperturbative resummation of interactions. Such behaviour is a peculiar prediction; but we find that the suppression is essential if one is to achieve agreement with lattice-QCD predictions for the 0(-+) glueball mass. Hence, it is likely that this novel feature of V-mu nu rho is real and has observable implications for the spectrum, decays and interactions of all QCD bound-states. (AU)

FAPESP's process: 17/05685-2 - Hadronic physics in high energy nuclear collisions
Grantee:Jun Takahashi
Support Opportunities: Special Projects
FAPESP's process: 17/07595-0 - Nonperturbative aspects of the QCD Green's functions
Grantee:Arlene Cristina Aguilar
Support Opportunities: Regular Research Grants