The strong coupling constant: state of the art and the decade ahead
Theoretical predictions for particle production cross sections and decays at colliders rely heavily on perturbative Quantum Chromodynamics (QCD) calculations, expressed as an expansion in powers of the strong coupling constant α S . The current O ( 1 % ) uncertainty of the QCD coupling evaluated at...
| Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/383145 |
| Acesso em linha: | http://hdl.handle.net/10261/383145 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85208751586&doi=10.1088%2f1361-6471%2fad1a78&partnerID=40&md5=dffaba34aaad259c06a4b193452ab643 |
| Access Level: | acceso abierto |
| Palavra-chave: | Colliders QCD Strong coupling |
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The strong coupling constant: state of the art and the decade aheadd’Enterria, D.Kluth, S.Zanderighi, G.Ayala, C.Benitez-Rathgeb, M.A.Blümlein, J.Boito, D.Brambilla, N.Britzger, D.Camarda, S.Cooper-Sarkar, A.M.Cridge, T.Cvetič, G.Dalla Brida, M.Deur, A.Giuli, F.Golterman, M.Hoang, A.H.Huston, J.Jamin, M.Kotikov, A.V.Krivokhizhin, V.G.Kronfeld, A.S.Leino, V.Lipka, K.Mäkelä, T.Malaescu, B.Maltman, K.Marzani, S.Mateu, V.Moch, S.Monni, P.F.Nadolsky, P.Nason, P.Nesterenko, A.V.Pérez-Ramos, R.Peris, S.Petreczky, P.Pich, AntonioRabbertz, K.Ramos, A.Reichelt, D.Rodriguez-Sánchez, A.Rojo, J.Saragnese, M.Sawyer, L.Schott, M.Schumann, S.Shaikhatdenov, B.G.Sint, S.Soyez, G.Teca, D.Vairo, A.Vos, M.Waits, C.Weber, J.H.Wobisch, M.Xie, K.CollidersQCDStrong couplingTheoretical predictions for particle production cross sections and decays at colliders rely heavily on perturbative Quantum Chromodynamics (QCD) calculations, expressed as an expansion in powers of the strong coupling constant α S . The current O ( 1 % ) uncertainty of the QCD coupling evaluated at the reference Z boson mass, α S ( m Z 2 ) = 0.1179 ± 0.0009 , is one of the limiting factors to more precisely describe multiple processes at current and future colliders. A reduction of this uncertainty is thus a prerequisite to perform precision tests of the Standard Model as well as searches for new physics. This report provides a comprehensive summary of the state-of-the-art, challenges, and prospects in the experimental and theoretical study of the strong coupling. The current α S ( m Z 2 ) world average is derived from a combination of seven categories of observables: (i) lattice QCD, (ii) hadronic τ decays, (iii) deep-inelastic scattering and parton distribution functions fits, (iv) electroweak boson decays, hadronic final-states in (v) e+e−, (vi) e-p, and (vii) p-p collisions, and (viii) quarkonia decays and masses. We review the current status of each of these seven α S ( m Z 2 ) extraction methods, discuss novel α S determinations, and examine the averaging method used to obtain the world-average value. Each of the methods discussed provides a ‘wish list’ of experimental and theoretical developments required in order to achieve the goal of a per-mille precision on α S ( m Z 2 ) within the next decade. © 2024 The Author(s). Published by IOP Publishing Ltd.PP was supported by US Department of Energy under Contract No. DE-SC0012704. JHW’s research was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)–Projektnummer 417 533 893/GRK2575 ‘Rethinking Quantum Field Theory’.Support from the EU STRONG-2020 project under the program H2020-INFRAIA-2018-1, grant agreement No. 824093 is acknowledged.Peer reviewedIOP PublishingGerman Research FoundationEuropean CommissionAyala, C. [0000-0001-8457-8253]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/383145https://www.scopus.com/inward/record.uri?eid=2-s2.0-85208751586&doi=10.1088%2f1361-6471%2fad1a78&partnerID=40&md5=dffaba34aaad259c06a4b193452ab643reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/1824093The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1088/1361-6471/ad1a78https://doi.org/10.1088/1361-6471/ad1a78Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3831452026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
The strong coupling constant: state of the art and the decade ahead |
| title |
The strong coupling constant: state of the art and the decade ahead |
| spellingShingle |
The strong coupling constant: state of the art and the decade ahead d’Enterria, D. Colliders QCD Strong coupling |
| title_short |
The strong coupling constant: state of the art and the decade ahead |
| title_full |
The strong coupling constant: state of the art and the decade ahead |
| title_fullStr |
The strong coupling constant: state of the art and the decade ahead |
| title_full_unstemmed |
The strong coupling constant: state of the art and the decade ahead |
| title_sort |
The strong coupling constant: state of the art and the decade ahead |
| dc.creator.none.fl_str_mv |
d’Enterria, D. Kluth, S. Zanderighi, G. Ayala, C. Benitez-Rathgeb, M.A. Blümlein, J. Boito, D. Brambilla, N. Britzger, D. Camarda, S. Cooper-Sarkar, A.M. Cridge, T. Cvetič, G. Dalla Brida, M. Deur, A. Giuli, F. Golterman, M. Hoang, A.H. Huston, J. Jamin, M. Kotikov, A.V. Krivokhizhin, V.G. Kronfeld, A.S. Leino, V. Lipka, K. Mäkelä, T. Malaescu, B. Maltman, K. Marzani, S. Mateu, V. Moch, S. Monni, P.F. Nadolsky, P. Nason, P. Nesterenko, A.V. Pérez-Ramos, R. Peris, S. Petreczky, P. Pich, Antonio Rabbertz, K. Ramos, A. Reichelt, D. Rodriguez-Sánchez, A. Rojo, J. Saragnese, M. Sawyer, L. Schott, M. Schumann, S. Shaikhatdenov, B.G. Sint, S. Soyez, G. Teca, D. Vairo, A. Vos, M. Waits, C. Weber, J.H. Wobisch, M. Xie, K. |
| author |
d’Enterria, D. |
| author_facet |
d’Enterria, D. Kluth, S. Zanderighi, G. Ayala, C. Benitez-Rathgeb, M.A. Blümlein, J. Boito, D. Brambilla, N. Britzger, D. Camarda, S. Cooper-Sarkar, A.M. Cridge, T. Cvetič, G. Dalla Brida, M. Deur, A. Giuli, F. Golterman, M. Hoang, A.H. Huston, J. Jamin, M. Kotikov, A.V. Krivokhizhin, V.G. Kronfeld, A.S. Leino, V. Lipka, K. Mäkelä, T. Malaescu, B. Maltman, K. Marzani, S. Mateu, V. Moch, S. Monni, P.F. Nadolsky, P. Nason, P. Nesterenko, A.V. Pérez-Ramos, R. Peris, S. Petreczky, P. Pich, Antonio Rabbertz, K. Ramos, A. Reichelt, D. Rodriguez-Sánchez, A. Rojo, J. Saragnese, M. Sawyer, L. Schott, M. Schumann, S. Shaikhatdenov, B.G. Sint, S. Soyez, G. Teca, D. Vairo, A. Vos, M. Waits, C. Weber, J.H. Wobisch, M. Xie, K. |
| author_role |
author |
| author2 |
Kluth, S. Zanderighi, G. Ayala, C. Benitez-Rathgeb, M.A. Blümlein, J. Boito, D. Brambilla, N. Britzger, D. Camarda, S. Cooper-Sarkar, A.M. Cridge, T. Cvetič, G. Dalla Brida, M. Deur, A. Giuli, F. Golterman, M. Hoang, A.H. Huston, J. Jamin, M. Kotikov, A.V. Krivokhizhin, V.G. Kronfeld, A.S. Leino, V. Lipka, K. Mäkelä, T. Malaescu, B. Maltman, K. Marzani, S. Mateu, V. Moch, S. Monni, P.F. Nadolsky, P. Nason, P. Nesterenko, A.V. Pérez-Ramos, R. Peris, S. Petreczky, P. Pich, Antonio Rabbertz, K. Ramos, A. Reichelt, D. Rodriguez-Sánchez, A. Rojo, J. Saragnese, M. Sawyer, L. Schott, M. Schumann, S. Shaikhatdenov, B.G. Sint, S. Soyez, G. Teca, D. Vairo, A. Vos, M. Waits, C. Weber, J.H. Wobisch, M. Xie, K. |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
German Research Foundation European Commission Ayala, C. [0000-0001-8457-8253] Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Colliders QCD Strong coupling |
| topic |
Colliders QCD Strong coupling |
| description |
Theoretical predictions for particle production cross sections and decays at colliders rely heavily on perturbative Quantum Chromodynamics (QCD) calculations, expressed as an expansion in powers of the strong coupling constant α S . The current O ( 1 % ) uncertainty of the QCD coupling evaluated at the reference Z boson mass, α S ( m Z 2 ) = 0.1179 ± 0.0009 , is one of the limiting factors to more precisely describe multiple processes at current and future colliders. A reduction of this uncertainty is thus a prerequisite to perform precision tests of the Standard Model as well as searches for new physics. This report provides a comprehensive summary of the state-of-the-art, challenges, and prospects in the experimental and theoretical study of the strong coupling. The current α S ( m Z 2 ) world average is derived from a combination of seven categories of observables: (i) lattice QCD, (ii) hadronic τ decays, (iii) deep-inelastic scattering and parton distribution functions fits, (iv) electroweak boson decays, hadronic final-states in (v) e+e−, (vi) e-p, and (vii) p-p collisions, and (viii) quarkonia decays and masses. We review the current status of each of these seven α S ( m Z 2 ) extraction methods, discuss novel α S determinations, and examine the averaging method used to obtain the world-average value. Each of the methods discussed provides a ‘wish list’ of experimental and theoretical developments required in order to achieve the goal of a per-mille precision on α S ( m Z 2 ) within the next decade. © 2024 The Author(s). Published by IOP Publishing Ltd. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 2025 2025 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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http://hdl.handle.net/10261/383145 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85208751586&doi=10.1088%2f1361-6471%2fad1a78&partnerID=40&md5=dffaba34aaad259c06a4b193452ab643 |
| url |
http://hdl.handle.net/10261/383145 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85208751586&doi=10.1088%2f1361-6471%2fad1a78&partnerID=40&md5=dffaba34aaad259c06a4b193452ab643 |
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Inglés |
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Inglés |
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#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/1824093 The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1088/1361-6471/ad1a78 https://doi.org/10.1088/1361-6471/ad1a78 Sí |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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IOP Publishing |
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IOP Publishing |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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