Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP11(2021)026
Keywords
Deep Inelastic Scattering (Phenomenology); QCD Phenomenology
Categories
Funding
- National Natural Science Foundation of China (NSFC) [11875112]
- China Postdoctoral Science Foundation [KLH1512104]
Ask authors/readers for more resources
Angularity is an event-shape observable that can be measured in deep-inelastic scattering, allowing interpolation between thrust and broadening with its continuous parameter a. Factorizing the cross section using soft-collinear effective theory is valid in a wide range below and above the thrust region but not in the broadening limit. Resummation of large logs for angularity allows predictions at various values of a at next-to-next-to-leading log accuracy.
Angularity is a class of event-shape observables that can be measured in deep-inelastic scattering. With its continuous parameter a one can interpolate angularity between thrust and broadening and further access beyond the region. Providing such systematic way to access various observables makes angularity attractive in analysis with event shapes. We give the definition of angularity for DIS and factorize the cross section by using soft-collinear effective theory. The factorization is valid in a wide range of a below and above thrust region but invalid in broadening limit. It contains an angularity beam function, which is new result and we give the expression at O(alpha(s)). We also perform large log resummation of angularity and make predictions at various values of a at next-to-next-to-leading log accuracy.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available