Zobrazeno 1 - 10
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pro vyhledávání: '"Soft function"'
Recently, we have presented the result for the zero-jettiness soft function at next-to-next-to-next-to-leading order (N3LO) in perturbative QCD [arXiv:2409.11042], without providing technical details of the calculation. The goal of this paper is to d
Externí odkaz:
http://arxiv.org/abs/2412.14001
The transverse momentum dependent (TMD) soft function and Collins-Soper (CS) kernel may be obtained by formulating the Wilson line in terms of auxiliary one-dimensional fermion fields on the lattice. Our computation takes place in the region of the l
Externí odkaz:
http://arxiv.org/abs/2412.12645
Autor:
Liu, Ze Long, Monni, Pier Francesco
We consider the production of a pair of heavy quarks $Q\bar{Q}$ in association with a generic colour singlet system $V$ at lepton colliders, and present the first analytic calculation of the two-loop soft function differential in the total momentum o
Externí odkaz:
http://arxiv.org/abs/2411.13466
We present the high-precision result for the zero-jettiness soft function at next-to-next-to-next-to-leading order (N3LO) in perturbative QCD. At this perturbative order, the soft function is the last missing ingredient required for the computation o
Externí odkaz:
http://arxiv.org/abs/2409.11042
Autor:
Baskov, Igor
Let $A$ be a real soft function algebra. In arXiv:2208.11431 we have obtained a canonical splitting $\mathrm{H}^* (\Omega ^\bullet _{A|\mathrm{R}}) \cong \mathrm{H} ^* (X,\mathrm{R})\oplus \text{(something)}$ via the canonical maps $\Lambda_A:\mathrm
Externí odkaz:
http://arxiv.org/abs/2408.08689
We derive a compact representation of the renormalized $N$-jettiness soft function that is free of infrared and collinear divergences through next-to-next-to-leading order in perturbative QCD. The number of hard partons $N$ is a parameter in the form
Externí odkaz:
http://arxiv.org/abs/2403.03078
We determine for the first time the renormalization-group (RG) evolution equation for the $B$-meson soft function dictating the non-perturbative strong interaction dynamics of the long-distance penguin contributions to the exclusive $b \to q \ell^{+}
Externí odkaz:
http://arxiv.org/abs/2312.15439
Publikováno v:
JHEP 07 (2024) 077
We compute the N-jettiness soft function in hadronic collisions to next-to-next-to-leading order (NNLO) in the strong-coupling expansion. Our calculation is based on an extension of the SoftSERVE framework to soft functions that involve an arbitrary
Externí odkaz:
http://arxiv.org/abs/2312.11626
The TMD soft function can be obtained by formulating the Wilson line in terms of auxiliary 1-dimensional fermion fields on the lattice. In this formulation, the directional vector of the auxiliary field in Euclidean space has the form $\tilde n = (in
Externí odkaz:
http://arxiv.org/abs/2312.04315
We present an analytic calculation of the one-loop correction to the double-real emission contribution to the zero-jettiness soft function at N3LO in QCD, accounting for both gluon-gluon and quark-antiquark soft final-state partons. We explain all th
Externí odkaz:
http://arxiv.org/abs/2401.05245