AN IMPLICIT REGULARIZATION APPROACH TO CHIRAL MODELS

被引：1

作者：

Rosado, Ricardo J. C. ^{[1
]}

Cherchiglia, Adriano ^{[2
,3
]}

Sampaiod, Marcos ^{[4
]}

Hiller, Brigitte ^{[1
]}

机构：

[1] Univ Coimbra, Dept Phys, CFisUC, P-3004516 Coimbra, Portugal

[2] Univ Estadual Campinas, Inst Fis Gleb Wataghin, Rua Sergio Buarque de Holanda 777, Campinas, SP, Brazil

[3] Univ Granada, Dept Fis Teor & Cosmos, Campus Fuentenueva, Granada 18071, Spain

[4] Univ Fed ABC, BR-09210580 Santo Andre, SP, Brazil

来源：

ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT | 2024年 / 17卷 / 06期

关键词：

D O I：

10.5506/APhysPolBSupp.17.6-A15

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The decays of the Z boson and CP-even or CP-odd scalar bosons into quark-antiquark pairs have been calculated at NLO in the framework of Implicit Regularization (IReg), which operates strictly in the physical dimension and complies with the BPHZ procedure. The presence of the gamma(5) matrix is dealt without the need of gauge symmetry restoring counterterms and the Kinoshita-Lee-Nauenberg (KLN) theorem is verified. The results are compared to the ones obtained in the Dimensional Reduction scheme (DRed).

引用

页数：6

共 12 条

[1] Lotty - The loop-tree duality automation [J].

Bobadilla, William J. Torres .

EUROPEAN PHYSICAL JOURNAL C, 2021, 81 (06)

[2] HIGGS-BOSON DECAY AND THE RUNNING MASS [J].

BRAATEN, E ;

LEVEILLE, JP .

PHYSICAL REVIEW D, 1980, 22 (03) :715-721

[3] Dimensional regularization vs methods in fixed dimension with and without γ5 [J].

Bruque, A. M. ;

Cherchiglia, A. L. ;

Perez-Victoria, M. .

JOURNAL OF HIGH ENERGY PHYSICS, 2018, (08)

[4]

Ivanov BV., 2017, Eur. Phys. J. C, V77, P1

[5] MASS SINGULARITIES OF FEYNMAN AMPLITUDES [J].

KINOSHITA, T .

JOURNAL OF MATHEMATICAL PHYSICS, 1962, 3 (04) :650-&

[6] DEGENERATE SYSTEMS + MASS SINGULARITIES [J].

LEE, TD ;

NAUENBERG, M .

PHYSICAL REVIEW B, 1964, 133 (6B) :1549-&

[7] Theory of Z boson decays [J].

Novikov, VA ;

Okun, LB ;

Rozanov, AN ;

Vysotsky, MI .

REPORTS ON PROGRESS IN PHYSICS, 1999, 62 (09) :1275-1332

[8] Higgs boson decay into gluons in a 4D regularization: IR cancellation without evanescent fields to NLO [J].

Pereira, Ana ;

Cherchiglia, Adriano ;

Sampaio, Marcos ;

Hiller, Brigitte .

EUROPEAN PHYSICAL JOURNAL C, 2023, 83 (01)

[9] On the Bose symmetry and the left- and right-chiral anomalies [J].

Porto, J. S. ;

Vieira, A. R. ;

Cherchiglia, A. L. ;

Sampaio, Marcos ;

Hiller, Brigitte .

EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (02)

[10] Infrared subtleties and chiral vertices at NLO: an implicit regularization analysis [J].

Rosado, Ricardo J. C. ;

Cherchiglia, Adriano ;

Sampaio, Marcos ;

Hiller, Brigitte .

EUROPEAN PHYSICAL JOURNAL C, 2023, 83 (09)

← 1 2 →