Two-loop contributions to the anomalous chromomagnetic dipole moment of the top quark in two-Higgs-doublet models

被引：0

作者：

Bisal, Subhadip ^{[1
,2
]}

机构：

[1] Inst Phys, Sachivalaya Marg 751005, Bhubaneswer, India

[2] Homi Bhabha Natl Inst, Training Sch Complex, Anushakti Nagar, Mumbai 400 094, India

来源：

PHYSICS LETTERS B | 2024年 / 855卷

关键词：

CONSTRAINTS;

D O I：

10.1016/j.physletb.2024.138848

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results for the anomalous chromomagnetic moment of a quark at the one-loop and two-loop levels through model-independent parameterizations, considering the external gluon to be off-shell. Then, we consider different types of two-Higgs-doublet models with the momentum transfer of the external gluon, q(2) = +/- M-Z(2), and 0, for the numerical evaluations thereof for the top quark. We find that the contributions in the two-Higgs-doublet models are on the order of O(10(-3)) at the one-loop level and O(10(-4)) at the two-loop level, where the one-loop and two-loop contributions interfere destructively, resulting in the overall contributions being on the order of O(10(-3)) with a positive sign.

引用

页数：12

共 49 条

[1] Chromoelectric dipole moments of quarks in MSSM extensions [J].

Aboubrahim, Amin ;

Ibrahim, Tarek ;

Nath, Pran ;

Zorik, Anas .

PHYSICAL REVIEW D, 2015, 92 (03)

[2] Prospects for charged Higgs searches at the LHC [J].

Akeroyd, A. G. ;

Aoki, M. ;

Arhrib, A. ;

Basso, L. ;

Ginzburg, I. F. ;

Guedes, R. ;

Hernandez-Sanchez, J. ;

Huitu, K. ;

Hurth, T. ;

Kadastik, M. ;

Kanemura, S. ;

Kannike, K. ;

Khater, W. ;

Krawczyk, M. ;

Mahmoudi, F. ;

Moretti, S. ;

Najjari, S. ;

Osland, P. ;

Pruna, G. M. ;

Purmohammadi, M. ;

Racioppi, A. ;

Raidal, M. ;

Santos, R. ;

Sharma, P. ;

Sokolowska, D. ;

Stal, O. ;

Yagyu, K. ;

Yildirim, E. .

EUROPEAN PHYSICAL JOURNAL C, 2017, 77 (05)

[3] Perturbative unitarity constraints on generic Yukawa interactions [J].

Allwicher, Lukas ;

Arnan, Pere ;

Barducci, Daniele ;

Nardecchia, Marco .

JOURNAL OF HIGH ENERGY PHYSICS, 2021, 2021 (10)

[4] Revisiting the top quark chromomagnetic dipole moment in the SM [J].

Aranda, J., I ;

Cisneros-Perez, T. ;

Montano, J. ;

Quezadas-Vivian, B. ;

Ramirez-Zavaleta, F. ;

Tututi, E. S. .

EUROPEAN PHYSICAL JOURNAL PLUS, 2021, 136 (02)

[5] Flavor violation in chromo- and electromagnetic dipole moments induced by Z′ gauge bosons and a brief revisit of the Standard Model [J].

Aranda, J. I. ;

Espinosa-Gomez, D. ;

Montano, J. ;

Quezadas-Vivian, B. ;

Ramirez-Zavaleta, F. ;

Tututi, E. S. .

PHYSICAL REVIEW D, 2018, 98 (11)

[6] Status of the charged Higgs boson in two Higgs doublet models [J].

Arbey, A. ;

Mahmoudi, F. ;

Stal, O. ;

Stefaniak, T. .

EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (03)

[7] ELECTRIC-DIPOLE MOMENT OF THE ELECTRON AND OF THE NEUTRON [J].

BARR, SM ;

ZEE, A .

PHYSICAL REVIEW LETTERS, 1990, 65 (01) :21-24

[8] Quark-gluon vertex: A perturbation theory primer and beyond [J].

Bermudez, R. ;

Albino, L. ;

Gutierrez-Guerrero, L. X. ;

Tejeda-Yeomans, M. E. ;

Bashir, A. .

PHYSICAL REVIEW D, 2017, 95 (03)

[9] Top quark spin correlations and polarization at the LHC: Standard model predictions and effects of anomalous top chromo moments (vol 725, pg 115, 2013) [J].

Bernreuther, Werner ;

Si, Zong-Guo .

PHYSICS LETTERS B, 2015, 744 :413-413

[10] Production of singlet dominated scalar(s) at the LHC [J].

Bisal, Subhadip ;

Das, Debottam ;

Majhi, Swapan ;

Mitra, Subhadip .

PHYSICS LETTERS B, 2023, 839

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