The first–order factorizable contributions to the three–loop massive operator matrix elements <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:msubsup><mml:mrow><mml:mi mathvariant="bold-italic">A</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="bold-italic">Q</mml:mi><mml:mi mathvariant="bold-italic">g</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false" mathvariant="bold">(</mml:mo><mml:mn mathvariant="bold">3</mml:mn><mml:mo stretchy="false" mathvariant="bold">)</mml:mo><

Ablinger, J.; Behring, A.; Blümlein, J.; De Freitas, A.; von Manteuffel, A.; Schneider, C.; Schönwald, K.

doi:10.1016/j.nuclphysb.2023.116427

Nuclear Physics B

2024

DOI: 10.1016/j.nuclphysb.2023.116427

|View full text |Cite

The first–order factorizable contributions to the three–loop massive operator matrix elements AQg(3)<

J. Ablinger,

A. Behring,

J. Blümlein

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 9 publications

References 148 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

The non-first-order-factorizable contributions to the three-loop single-mass operator matrix elements AQg(3) and
Ablinger,
Behring,
Blümlein
et al. 2024
Physics Letters B
5
0
0
0
View full text Add to dashboard Cite

Next-to-next-to-leading order evolution of polarized parton densities in the Larin scheme

Blümlein,

Saragnese

2024

Phys. Rev. D

View full text Add to dashboard Cite

In many calculations involving polarized twist-2 parton densities to higher order in the strong coupling constant one uses the Larin scheme to describe chiral effects in dimensional regularization. Upon forming observables, the scheme dependence cancels. Still one needs a corresponding regularization scheme to compute the contributing building blocks, like massless and massive Wilson coefficients, as well as the massive three-loop operator matrix elements used in the variable flavor number scheme. These are matched to the evolved parton distribution functions in the Larin scheme. Starting with suitable input distributions we provide the solution of scale evolution of the different polarized parton distribution functions in Bjorken x space for a wide range of virtualities Q2 in the Larin scheme, at next-to-leading, at next-to-next-to-leading order for the first time. We also illustrate the deviation between the parton distributions in the Larin and MS¯ schemes numerically. Published by the American Physical Society 2024

show abstract

The impact of LHC jet and Z $$p_T$$ data at up to approximate N$${}^3$$LO order in the MSHT global PDF fit

Cridge,

Harland-Lang,

Thorne

2024

Eur. Phys. J. C

View full text Add to dashboard Cite

We present an analysis of two key sets of data constraining the high x gluon at up to approximate N$${}^3$$ 3 LO in QCD within the MSHT global PDF fitting framework. We begin with LHC 7 and 8 TeV inclusive jet and dijet production at both NNLO and aN$${}^3$$ 3 LO. This makes use of the formalism established in the previous global MSHT20aN$${}^3$$ 3 LO PDF fit, but now considers the role of dijet production for the first time at this order. We present a detailed comparison of the fit quality and PDF impact for both cases, and consider the role that electroweak corrections, and the scale choice for inclusive jet production has. Some mild tension between these data sets in the impact on the high x gluon is seen at NNLO, but this is largely eliminated at aN$${}^3$$ 3 LO. While a good fit quality to the dijet data is achieved at both orders, the fit quality to the inclusive jet data is relatively poor. We examine the impact of including full colour corrections in a global PDF fit for the first time, finding this to be relatively mild. We also revisit the fit to the ATLAS 8 TeV Z$$p_T$$ p T data, considering the role that the $$p_T$$ p T cuts, data selection and different aspects of the aN$${}^3$$ 3 LO treatment have on the fit quality and PDF impact. We observe that in all cases the aN$${}^3$$ 3 LO fit quality is consistently improved relative to the NNLO, indicating a clear preference for higher order theory for these data.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

The first–order factorizable contributions to the three–loop massive operator matrix elements AQg(3)<

Cited by 9 publications

References 148 publications

The non-first-order-factorizable contributions to the three-loop single-mass operator matrix elements AQg(3) and
Ablinger,
Behring,
Blümlein
et al. 2024
Physics Letters B
5
0
0
0
View full text Add to dashboard Cite

The non-first-order-factorizable contributions to the three-loop single-mass operator matrix elements AQg(3) and
Ablinger,
Behring,
Blümlein
et al. 2024
Physics Letters B
5
0
0
0
View full text Add to dashboard Cite

Next-to-next-to-leading order evolution of polarized parton densities in the Larin scheme

The impact of LHC jet and Z $$p_T$$ data at up to approximate N$${}^3$$LO order in the MSHT global PDF fit

Contact Info

Product

Resources

About

The first–order factorizable contributions to the three–loop massive operator matrix elements AQg(3)<

Cited by 9 publications

References 148 publications

The non-first-order-factorizable contributions to the three-loop single-mass operator matrix elements AQg(3) and Ablinger, Behring, Blümlein et al. 2024Physics Letters B5000View full textAdd to dashboardCite

The non-first-order-factorizable contributions to the three-loop single-mass operator matrix elements AQg(3) and Ablinger, Behring, Blümlein et al. 2024Physics Letters B5000View full textAdd to dashboardCite

Next-to-next-to-leading order evolution of polarized parton densities in the Larin scheme

The impact of LHC jet and Z $$p_T$$ data at up to approximate N$${}^3$$LO order in the MSHT global PDF fit

Contact Info

Product

Resources

About

The non-first-order-factorizable contributions to the three-loop single-mass operator matrix elements AQg(3) and
Ablinger,
Behring,
Blümlein
et al. 2024
Physics Letters B
5
0
0
0
View full text Add to dashboard Cite

The non-first-order-factorizable contributions to the three-loop single-mass operator matrix elements AQg(3) and
Ablinger,
Behring,
Blümlein
et al. 2024
Physics Letters B
5
0
0
0
View full text Add to dashboard Cite