Threshold resummation for the production of a color sextet (antitriplet) scalar at the LHC
Yong Chuan Zhan, Ze Long Liu, Shi Ang Li, Chong Sheng Li, Hai Tao Li
TL;DR
This paper studies the impact of threshold resummation at NNLL order on the production of color sextet and antitriplet scalars at the LHC, providing more precise cross sections and distributions, and constrains couplings using dijet data.
Contribution
It applies soft-collinear effective theory to perform NNLL resummation for scalar production, improving theoretical predictions and deriving experimental constraints.
Findings
Enhanced total cross section and rapidity distribution accuracy with NLO+NNLL
Comparison shows significant differences from NLO results
Constraints on scalar-quark couplings from LHC dijet data
Abstract
We investigate threshold resummation effects in the production of a color sextet (antitriplet) scalar at next-to-next-to-leading logarithmic (NNLL) order at the LHC in the frame of soft-collinear effective theory. We show the total cross section and the rapidity distribution with NLO+NNLL accuracy, and we compare them with the NLO results. Besides, we use recent dijet data at the LHC to give the constraints on the couplings between the colored scalars and quarks.
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