Mass suppression effect in QCD radiation and hadron angular distribution in jet
arXiv:2401.09033 · doi:10.1088/1674-1137/ad2f22
Abstract
The finite mass of the heavy quark suppresses the collimated radiations, which is generally referred to as the dead cone effect. In this paper, we study the distribution of hadron multiplicity over the hadron opening angle with respect to the jet axis in various flavors of jets. The corresponding measurement can be the most straightforward and simplest to explore the dynamical evolution of the radiations in the corresponding jet, which can expose the mass effect. We also propose the transverse energy-weighted angular distribution which sheds light on the interplay between perturbative and nonperturbative effects in the radiation. With Monte-Carlo simulations, our calculation shows that the dead cone effect can be clearly seen by taking the ratio between the b jet and the light-quark (inclusive) jet, promising to be measured at the LHC in the future.
7 pages, 4 figures; published version in CPC
References in corpus (35)
- The anti-k_t jet clustering algorithm
- An Introduction to PYTHIA 8.2
- FastJet user manual
- The p_T Spectrum in Heavy-Flavour Hadroproduction
- Identification of heavy-flavour jets with the CMS detector in pp collisions at 13 TeV
- Jet Substructure at the Large Hadron Collider: A Review of Recent Advances in Theory and Machine Learning
- Jet Substructure at the Large Hadron Collider: Experimental Review
- Production and Hadronization of Heavy Quarks
- Large Jets at Hadron Colliders at Order : A Look Inside
- The semi-inclusive jet function in SCET and small radius resummation for inclusive jet production
- Analyzing N-point Energy Correlators Inside Jets with CMS Open Data
- Fragmentation of a Jet with Small Radius
- Effective field theory approach to open heavy flavor production in heavy-ion collisions
- Inclusive b-jet production in pp collisions at sqrt(s)=7 TeV
- Probing medium-induced jet splitting and energy loss in heavy-ion collisions
- Inverting the mass hierarchy of jet quenching effects with prompt -jet substructure
- Transverse Momentum Spectra at Threshold for Groomed Heavy Quark Jets
- Transverse momentum spectra of b jets in pPb collisions at sqrt(s[NN]) = 5.02 TeV
- Resurrecting the Dead Cone
- Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sqrt(s[NN]) = 5.02 TeV
- Inclusive heavy flavor jet production with semi-inclusive jet functions: from proton to heavy-ion collisions
- Predictions for energy correlators probing substructure of groomed heavy quark jets
- Multiplicity Difference between Heavy and Light Quark Jets Revisited
- Studies of charm quark diffusion inside jets using PbPb and pp collisions at 5.02 TeV
- Heavy quark radiation in an anisotropic hot QCD medium
- A consistent resummation of mass and soft logarithms in processes with heavy flavours
- Comparing transverse momentum balance of b jet pairs in pp and PbPb collisions at 5.02 TeV
- Heavy flavor jet production and substructure in electron-nucleus collisions
- Heavy Quark Jet Fragmentation
- Dead-cone searches in heavy-ion collisions using the jet tree
- SHAPER: Can You Hear the Shape of a Jet?
- Radial profile of bottom quarks in jets in high-energy nuclear collisions
- Heavy-Flavour Jets in High-Energy Nuclear Collisions
- Observation of the dead cone effect in charm and bottom quark jets and its QCD explanation
- Measurements of groomed-jet substructure of charm jets tagged by mesons in proton-proton collisions at = 13 TeV