Difference between revisions of "Non-global logarithms"
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| − | In [[perturbative quantum chromodynamics]], '''non-global logarithms''' are a particular class of [[Logarithmic enhancement|logarithmically enhanced]] higher-order corrections.<ref>Mrinal Dasgupta, Gavin Salam: ''Resummation of nonglobal QCD observables'', [http://dx.doi.org/10.1016/S0370-2693(01)00725-0 Phys. Lett. B 512 (2001) 323-330], ([http://inspirehep.net/record/555905 inSPIRE:555905])</ref> ''Non-global'' means that the corrections are sensitive to [[radiation]] in only a part of the [[phase space]]. This occurs for instance in some [[event shape]] variables. Another example are [[resummation]] terms associated with [[partons]] that are radiated out of a [[jet]] and then themselves radiate back into it. | + | In [[perturbative quantum chromodynamics]], '''non-global logarithms''' are a particular class of [[Logarithmic enhancement|logarithmically enhanced]] higher-order corrections.<ref>Mrinal Dasgupta, Gavin Salam: ''Resummation of nonglobal QCD observables'', [http://dx.doi.org/10.1016/S0370-2693(01)00725-0 Phys. Lett. B 512 (2001) 323-330], ([http://inspirehep.net/record/555905 inSPIRE:555905])</ref> ''Non-global'' means that the corrections are sensitive to [[radiation]] that falls in only a part of the available [[phase space]]. This occurs for instance in some [[event shape]] variables. Another example are [[resummation]] terms associated with [[partons]] that are radiated out of a [[jet]] and then themselves radiate back into it. |
== References == | == References == | ||
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Revision as of 08:46, 8 November 2017
In perturbative quantum chromodynamics, non-global logarithms are a particular class of logarithmically enhanced higher-order corrections.[1] Non-global means that the corrections are sensitive to radiation that falls in only a part of the available phase space. This occurs for instance in some event shape variables. Another example are resummation terms associated with partons that are radiated out of a jet and then themselves radiate back into it.
References
- ↑ Mrinal Dasgupta, Gavin Salam: Resummation of nonglobal QCD observables, Phys. Lett. B 512 (2001) 323-330, (inSPIRE:555905)
