TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.7.040
TI  - Next-to-leading power SCET in Higgs amplitudes induced by light quarks
PY  - 2022/06/22
UR  - https://www.scipost.org/SciPostPhysProc.7.040
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 7
SP  - 040
A1  - Wang, Xing
AB  - In this article, we report how to use the "plus-type" subtraction scheme to deal with endpoint divergences in $h\rightarrow\gamma\gamma$ or $gg\rightarrow h$ amplitudes induced by light quark loop, which can be formulated by next-to-leading power (NLP) SCET. This subtraction is ensured by two re-factorization conditions, which have been proven to all orders in $\alpha_s$. Based on these conditions, cutoffs emerge naturally after some re-arrangements to handle endpoint divergences and renormalization is compatible with that. Our formalism can analytically reproduce three-loop amplitudes up to $\ln^3(-M_h^2/m_b^2-i0)$ and resum to next-to-leading logarithm and beyond.
ER  -

@Article{10.21468/SciPostPhysProc.7.040,
	title={{Next-to-leading power SCET in Higgs amplitudes induced by light quarks}},
	author={Xing Wang},
	journal={SciPost Phys. Proc.},
	pages={040},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.7.040},
	url={https://scipost.org/10.21468/SciPostPhysProc.7.040},
}