The mass of the lightest gluelump

A bstract We consider QCD with n f = 0 and n f = 3 light quarks. We present the most up-to-date determinations for the normalizations of the leading renormalons of the pole mass, the singlet static potential, the octet static potential, and the gluelump energy. These read $$ {Z}_m^{\overline{\textrm{MS}}} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Z</mml:mi> <mml:mi>m</mml:mi> <mml:mover> <mml:mi>MS</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:msubsup> </mml:math> = $$ -{Z}_{V_s}^{\overline{\textrm{MS}}}/2 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mo>−</mml:mo> <mml:msubsup> <mml:mi>Z</mml:mi> <mml:msub> <mml:mi>V</mml:mi> <mml:mi>s</mml:mi> </mml:msub> <mml:mover> <mml:mi>MS</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:msubsup> <mml:mo>/</mml:mo> <mml:mn>2</mml:mn> </mml:math> = {0.604(17), 0.551(20)}, $$ {Z}_{V_o}^{\overline{\textrm{MS}}} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Z</mml:mi> <mml:msub> <mml:mi>V</mml:mi> <mml:mi>o</mml:mi> </mml:msub> <mml:mover> <mml:mi>MS</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:msubsup> </mml:math> = {0.136(8), 0.121(13)}, and $$ {Z}_A^{\overline{\textrm{MS}}} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Z</mml:mi> <mml:mi>A</mml:mi> <mml:mover> <mml:mi>MS</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:msubsup> </mml:math> = {–1.343(36), –1.224(43)}, for n f = 0 and n f = 3, respectively. For n f = 0, we obtain two independent renormalization group invariant and renormalization scale independent determinations of the energy of the ground state gluelump in the principal value summation scheme: $$ {\Lambda}_B^{\textrm{PV}}=2.47(9){r}_0^{-1} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Λ</mml:mi> <mml:mi>B</mml:mi> <mml:mi>PV</mml:mi> </mml:msubsup> <mml:mo>=</mml:mo> <mml:mn>2.47</mml:mn> <mml:mfenced> <mml:mn>9</mml:mn> </mml:mfenced> <mml:msubsup> <mml:mi>r</mml:mi> <mml:mn>0</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msubsup> </mml:math> and $$ {\Lambda}_B^{\textrm{PV}}=2.38(11){r}_0^{-1} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Λ</mml:mi> <mml:mi>B</mml:mi> <mml:mi>PV</mml:mi> </mml:msubsup> <mml:mo>=</mml:mo> <mml:mn>2.38</mml:mn> <mml:mfenced> <mml:mn>11</mml:mn> </mml:mfenced> <mml:msubsup> <mml:mi>r</mml:mi> <mml:mn>0</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msubsup> </mml:math> where $$ {r}_0^{-1} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>r</mml:mi> <mml:mn>0</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msubsup> </mml:math> ≈ 400 MeV. Averaging these results, we obtain $$ {\Lambda}_B^{\textrm{PV}}=2.44(7){r}_0^{-1} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Λ</mml:mi> <mml:mi>B</mml:mi> <mml:mi>PV</mml:mi> </mml:msubsup> <mml:mo>=</mml:mo> <mml:mn>2.44</mml:mn> <mml:mfenced> <mml:mn>7</mml:mn> </mml:mfenced> <mml:msubsup> <mml:mi>r</mml:mi> <mml:mn>0</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msubsup> </mml:math> .

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Journal
Journal of High Energy Physics
Published
2025-10-21
DOI
https://doi.org/10.1007/jhep10(2025)176
Primary Topic
Particle physics theoretical and experimental studies
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article

The mass of the lightest gluelump

César Ayala, Antonio Pineda
Journal of High Energy Physics
Particle physics theoretical and experimental studies
article

The mass of the lightest gluelump

César Ayala, Antonio Pineda
article en

Abstract

A bstract We consider QCD with n f = 0 and n f = 3 light quarks. We present the most up-to-date determinations for the normalizations of the leading renormalons of the pole mass, the singlet static potential, the octet static potential, and the gluelump energy. These read $$ {Z}_m^{\overline{\textrm{MS}}} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Z</mml:mi> <mml:mi>m</mml:mi> <mml:mover> <mml:mi>MS</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:msubsup> </mml:math> = $$ -{Z}_{V_s}^{\overline{\textrm{MS}}}/2 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mo>−</mml:mo> <mml:msubsup> <mml:mi>Z</mml:mi> <mml:msub> <mml:mi>V</mml:mi> <mml:mi>s</mml:mi> </mml:msub> <mml:mover> <mml:mi>MS</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:msubsup> <mml:mo>/</mml:mo> <mml:mn>2</mml:mn> </mml:math> = {0.604(17), 0.551(20)}, $$ {Z}_{V_o}^{\overline{\textrm{MS}}} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Z</mml:mi> <mml:msub> <mml:mi>V</mml:mi> <mml:mi>o</mml:mi> </mml:msub> <mml:mover> <mml:mi>MS</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:msubsup> </mml:math> = {0.136(8), 0.121(13)}, and $$ {Z}_A^{\overline{\textrm{MS}}} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Z</mml:mi> <mml:mi>A</mml:mi> <mml:mover> <mml:mi>MS</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:msubsup> </mml:math> = {–1.343(36), –1.224(43)}, for n f = 0 and n f = 3, respectively. For n f = 0, we obtain two independent renormalization group invariant and renormalization scale independent determinations of the energy of the ground state gluelump in the principal value summation scheme: $$ {\Lambda}_B^{\textrm{PV}}=2.47(9){r}_0^{-1} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Λ</mml:mi> <mml:mi>B</mml:mi> <mml:mi>PV</mml:mi> </mml:msubsup> <mml:mo>=</mml:mo> <mml:mn>2.47</mml:mn> <mml:mfenced> <mml:mn>9</mml:mn> </mml:mfenced> <mml:msubsup> <mml:mi>r</mml:mi> <mml:mn>0</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msubsup> </mml:math> and $$ {\Lambda}_B^{\textrm{PV}}=2.38(11){r}_0^{-1} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Λ</mml:mi> <mml:mi>B</mml:mi> <mml:mi>PV</mml:mi> </mml:msubsup> <mml:mo>=</mml:mo> <mml:mn>2.38</mml:mn> <mml:mfenced> <mml:mn>11</mml:mn> </mml:mfenced> <mml:msubsup> <mml:mi>r</mml:mi> <mml:mn>0</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msubsup> </mml:math> where $$ {r}_0^{-1} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>r</mml:mi> <mml:mn>0</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msubsup> </mml:math> ≈ 400 MeV. Averaging these results, we obtain $$ {\Lambda}_B^{\textrm{PV}}=2.44(7){r}_0^{-1} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Λ</mml:mi> <mml:mi>B</mml:mi> <mml:mi>PV</mml:mi> </mml:msubsup> <mml:mo>=</mml:mo> <mml:mn>2.44</mml:mn> <mml:mfenced> <mml:mn>7</mml:mn> </mml:mfenced> <mml:msubsup> <mml:mi>r</mml:mi> <mml:mn>0</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msubsup> </mml:math> .

Journal of High Energy PhysicsVol. 2025(10)
Universitat Autònoma de Barcelona (ES), University of Tarapacá (CL), Shanghai Institute for Science of Science (CN), Barcelona Institute of Science and Technology (ES), Institute of Science and Technology
Centres de Recerca de Catalunya, European Commission, Generalitat de Catalunya, Ministerio de Ciencia e Innovación, Institut de Física d'Altes Energies
Openalex Percentile: Top 86%
Particle physics theoretical and experimental studies
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