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$\alpha_s$ from soft parton-to-hadron fragmentation functions
The QCD coupling α s is extracted at approximate next-to-next-to-leading-order (NNLO ∗ ) accuracy from the energy evolution of the first two moments (multiplicity and mean) of the parton- to-hadron fragmentation functions at low fractional hadron momentum z. Comparisons of the experimental e + e − a...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2015
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/2143932 |
| _version_ | 1780950273407057920 |
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| author | Perez-Ramos, Redamy d'Enterria, David |
| author_facet | Perez-Ramos, Redamy d'Enterria, David |
| author_sort | Perez-Ramos, Redamy |
| collection | CERN |
| description | The QCD coupling α s is extracted at approximate next-to-next-to-leading-order (NNLO ∗ ) accuracy from the energy evolution of the first two moments (multiplicity and mean) of the parton- to-hadron fragmentation functions at low fractional hadron momentum z. Comparisons of the experimental e + e − and DIS e ± p jet data to our NNLO ∗ +NNLL predictions, allow us to obtain α s (m 2 Z ) = 0.1205±0.0010 +0.0022 −0.0000 , in excellent agreement with the current world average. |
| id | oai-inspirehep.net-1415411 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2015 |
| record_format | invenio |
| spelling | oai-inspirehep.net-14154112019-09-30T06:29:59Zhttp://cds.cern.ch/record/2143932engPerez-Ramos, Redamyd'Enterria, David$\alpha_s$ from soft parton-to-hadron fragmentation functionsParticle Physics - PhenomenologyThe QCD coupling α s is extracted at approximate next-to-next-to-leading-order (NNLO ∗ ) accuracy from the energy evolution of the first two moments (multiplicity and mean) of the parton- to-hadron fragmentation functions at low fractional hadron momentum z. Comparisons of the experimental e + e − and DIS e ± p jet data to our NNLO ∗ +NNLL predictions, allow us to obtain α s (m 2 Z ) = 0.1205±0.0010 +0.0022 −0.0000 , in excellent agreement with the current world average.oai:inspirehep.net:14154112015 |
| spellingShingle | Particle Physics - Phenomenology Perez-Ramos, Redamy d'Enterria, David $\alpha_s$ from soft parton-to-hadron fragmentation functions |
| title | $\alpha_s$ from soft parton-to-hadron fragmentation functions |
| title_full | $\alpha_s$ from soft parton-to-hadron fragmentation functions |
| title_fullStr | $\alpha_s$ from soft parton-to-hadron fragmentation functions |
| title_full_unstemmed | $\alpha_s$ from soft parton-to-hadron fragmentation functions |
| title_short | $\alpha_s$ from soft parton-to-hadron fragmentation functions |
| title_sort | $\alpha_s$ from soft parton-to-hadron fragmentation functions |
| topic | Particle Physics - Phenomenology |
| url | http://cds.cern.ch/record/2143932 |
| work_keys_str_mv | AT perezramosredamy alphasfromsoftpartontohadronfragmentationfunctions AT denterriadavid alphasfromsoftpartontohadronfragmentationfunctions |