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• W3186157008 abstract "Abstract We present the resummed predictions for inclusive cross section for Drell–Yan (DY) production up to next-to-next-to leading logarithmic ( $${{overline{mathrm{NNLL}}}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mover> <mml:mi>NNLL</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> ) accuracy taking into account both soft virtual (SV) and next-to SV (NSV) threshold logarithms. We restrict ourselves to resummed contributions only from quark anti-quark ( $$q {{bar{q}}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mrow> <mml:mi>q</mml:mi> <mml:mover> <mml:mrow> <mml:mi>q</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>¯</mml:mo> </mml:mrow> </mml:mover> </mml:mrow> </mml:math> ) initiated channels. The resummation is performed in Mellin- N -space. We derive the N -dependent coefficients and the N -independent constants to desired accuracy for our study. The resummed results are matched through the minimal prescription procedure with the fixed-order results. We find that the resummation, taking into account the NSV terms, appreciably increases the cross section while decreasing the sensitivity to renormalisation scale. We observe that, at 13 TeV LHC energies, the SV + NSV resummation at $${overline{mathrm{NLL}}} ({{overline{mathrm{NNLL}}}})$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mrow> <mml:mover> <mml:mi>NLL</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mrow> <mml:mo>(</mml:mo> <mml:mover> <mml:mi>NNLL</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> <mml:mo>)</mml:mo> </mml:mrow> </mml:mrow> </mml:math> gives about 8% (2%) corrections respectively to the NLO (NNLO) results for the considered Q range: 150–3500 GeV. In addition, the absence of quark gluon initiated contributions to NSV part in the resummed terms leaves large factorisation scale dependence indicating their importance at NSV level. We also study the numerical impact of N -independent constants and explore the ambiguity involved in exponentiating them. Finally we present our predictions for the neutral Drell–Yan process at various center of mass of energies." @default.
• W3186157008 created "2021-08-02" @default.
• W3186157008 creator A5003433344 @default.
• W3186157008 creator A5011222865 @default.
• W3186157008 creator A5039167514 @default.
• W3186157008 creator A5068600305 @default.
• W3186157008 creator A5087796191 @default.
• W3186157008 date "2022-03-01" @default.
• W3186157008 modified "2023-10-05" @default.
• W3186157008 title "Next-to SV resummed Drell–Yan cross section beyond leading-logarithm" @default.
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