Resummation, Evolution, Factorization 2022

Session

Parton shower systematics and TMDs

Parton shower systematics and TMDs

31 Oct 2022, 14:00

Conveners

Parton shower systematics and TMDs: Parton shower systematics and TMDs

• Hannes Jung (DESY)

Parton shower systematics and TMDs

• Natasa Raicevic

Parton shower systematics and TMDs

• Itana Bubanja

54. Collider Events on a Quantum Computer

Simon Williams (Imperial College)

31/10/2022, 14:00

In recent years, quantum computing has seen staggering progress, from few-qubit devices to 100+ qubit devices on the cloud that can easily be programmed in a straightforward Python-like API. Since quantum computing can naturally incorporate quantum phenomena, it is a potential game changer for the simulation of particle physics, increasing their physics capabilities and efficiency.

QCD...

51. Multi-jet events at the LHC with TMD merging

Mees van Kampen (Student)

31/10/2022, 14:20

An accurate description of events with multiple QCD jets is very important because of their high production rates at the LHC. These type of events provide crucial tests to the QCD sector of the standard model as well as a common background to new physics searches. This presentation contains new results on the merging of pure jet events with the recently developed TMD multi-jet merging method,...

82. PB method and TMD multi-jet merging at NLO

Armando Bermudez Martinez (CMS (CMS Fachgruppe QCD))

31/10/2022, 14:40

A new NLO multi-jet merging method is presented that allows to combine Parton-Branching transverse momentum dependent (PB-TMD) parton distributions with vector+jets calculations at NLO. Double counting in exclusive calculations is avoided by removing resolvable contributions, with respect to the merging scale, from the corresponding multiplicity at NLO. The merging performance is assessed...

86. Multivariable evolution in parton showers with initial state partons

Zoltan Nagy (T (Phenomenology))

31/10/2022, 15:00

One can use more than one scale variable to define the family of surfaces in the space of parton splitting parameters that define the evolution of a parton shower. In parton shower with initial state parton we need a more sophisticated analysis because the evolution of parton distribution functions must be coordinated with the parton shower evolution. We make the needed connections more...

88. A new approach to color-coherent parton evolution

Stefan Hoeche (Fermi National Accelerator Laboratory)

31/10/2022, 15:50

In this talk I will review the basics of color-coherent parton evolution and the emergence of angular ordering. I will then introduce an alternative way to reproduce the soft-gluon radiation pattern at single-emission level in a parton shower. After a brief discussion of analytic NLL resummation for event shapes in electron-positron collisions, I will present a new type of parton-shower...

53. New Developments for QCD Parton Showers

Simon Plätzer (Universität Graz)

04/11/2022, 14:00

I will give an overview of recent developments of NLL accurate QCD parton showers for final and initial state radiation, and recent developments within the amplitude level evolution framework.