Determination of ππ scattering lengths from measurement of π+π− atom lifetime

Simple item page
dc.contributor.affiliationUniversidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Física de Partículas
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Cirurxía e Especialidades Médico-Cirúrxicas
dc.contributor.authorAdeva Andany, Bernardo
dc.contributor.authorAfanasyev, L.
dc.contributor.authorBenayoun, Maurice
dc.contributor.authorBenelli, Angela
dc.contributor.authorBerka, Z.
dc.contributor.authorBrekhovskikh, V.
dc.contributor.authorCaragheorgheopol, G.
dc.contributor.authorČechák, Thomas
dc.contributor.authorChiba, Masami
dc.contributor.authorChliapnikov, P. V.
dc.contributor.authorCiocarlan, C.
dc.contributor.authorConstantinescu, Serban
dc.contributor.authorCostantini, Silvia
dc.contributor.authorCurceanu (Petrascu), C.
dc.contributor.authorDoskarova, P.
dc.contributor.authorDreossi, Diego
dc.contributor.authorDrijard, Daniel
dc.contributor.authorDudarev, A.
dc.contributor.authorFerro-Luzzi, Massi
dc.contributor.authorFungueiriño Pazos, J. L.
dc.contributor.authorGallas Torreira, María Mercedes
dc.contributor.authorGómez Rodríguez, Faustino
dc.contributor.authorLópez Aguera, María de los Ángeles
dc.contributor.authorNúñez Pardo, T.
dc.contributor.authorPazos, Antonio
dc.contributor.authorPló Casasús, Máximo
dc.contributor.authorMolina Rodriguez, Juan
dc.contributor.authorRodríguez Fernández, A.
dc.contributor.authorSaborido Silva, Juan José
dc.contributor.authorSantamarina Ríos, Cibrán
dc.contributor.authorTobar Vidal, María José
dc.contributor.authorVázquez Doce, Otón
dc.contributor.authorZrelov, Petr V.
dc.date.accessioned2026-01-12T08:50:07Z
dc.date.available2026-01-12T08:50:07Z
dc.date.issued2011-09-03
dc.description.abstractThe DIRAC experiment at CERN has achieved a sizeable production of π π atoms and has significantly improved the precision on its lifetime determination. From a sample of 21227 atomic pairs, a 4% measurement of the S-wave ππ scattering length difference |a0−a2| = (0.2533+0.0080−0.0078|stat+0.0078−0.0073|syst)M_pi−^{1} has been attained, providing an important test of Chiral Perturbation Theory
dc.description.peerreviewedSI
dc.description.sponsorshipWe are indebted to CERN for continuous support and the PS team for the excellent performance of the accelerator. We acknowledge the computing help from CESGA (Spain). This work was funded by CERN, INFN (Italy), INCITE and MICINN (Spain), IFIN-HH (Romania), the Ministry of Education and Science and RFBR grant 01-02-17756-a (Russia), the Grant-in-Aid from JSPS and Sentanken-grant from Kyoto Sangyo University (Japan)
dc.identifier.citationB. Adeva, L. Afanasyev, M. Benayoun, A. Benelli, Z. Berka, V. Brekhovskikh, G. Caragheorgheopol, T. Cechak, M. Chiba, P.V. Chliapnikov, C. Ciocarlan, S. Constantinescu, S. Costantini, C. Curceanu (Petrascu), P. Doskarova, D. Dreossi, D. Drijard, A. Dudarev, M. Ferro-Luzzi, J.L. Fungueiriño Pazos, M. Gallas Torreira, J. Gerndt, P. Gianotti, D. Goldin, F. Gomez, A. Gorin, O. Gorchakov, C. Guaraldo, M. Gugiu, M. Hansroul, Z. Hons, R. Hosek, M. Iliescu, V. Karpukhin, J. Kluson, M. Kobayashi, P. Kokkas, V. Komarov, V. Kruglov, L. Kruglova, A. Kulikov, A. Kuptsov, K.I. Kuroda, A. Lamberto, A. Lanaro, V. Lapshin, R. Lednicky, P. Leruste, P. Levi Sandri, A. Lopez Aguera, V. Lucherini, T. Maki, I. Manuilov, J. Marin, J.L. Narjoux, L. Nemenov, M. Nikitin, T. Nunez Pardo, K. Okada, V. Olchevskii, A. Pazos, M. Pentia, A. Penzo, J.M. Perreau, M. Plo, T. Ponta, G.F. Rappazzo, A. Riazantsev, J.M. Rodriguez, A. Rodriguez Fernandez, A. Romero Vidal, V.M. Ronjin, V. Rykalin, J. Saborido, C. Santamarina, J. Schacher, C. Schuetz, A. Sidorov, J. Smolik, F. Takeutchi, A. Tarasov, L. Tauscher, M.J. Tobar, T. Trojek, S. Trusov, V. Utkin, O. Vázquez Doce, S. Vlachos, O. Voskresenskaya, T. Vrba, C. Willmott, V. Yazkov, Y. Yoshimura, M. Zhabitsky, P. Zrelov, Determination of ππ scattering lengths from measurement of π+π− atom lifetime, Physics Letters B, Volume 704, Issues 1–2, 2011, Pages 24-29, ISSN 0370-2693, https://doi.org/10.1016/j.physletb.2011.08.074
dc.identifier.doi10.1016/j.physletb.2011.08.074
dc.identifier.essn1873-2445
dc.identifier.urihttps://hdl.handle.net/10347/45014
dc.issue.number1-2
dc.journal.titlePhysics Letters B
dc.language.isoeng
dc.page.final29
dc.page.initial24
dc.publisherElsevier
dc.relation.publisherversionhttps://doi.org/10.1016/j.physletb.2011.08.074
dc.rights© 2011 Elsevier B.V. This is an open access article distributed under the terms of the Creative Commons CC-BY license
dc.rightsAttribution 4.0 Internationalen
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDIRAC experiment
dc.subjectElementary atom
dc.subjectPionium atom
dc.subjectPion scattering
dc.titleDetermination of ππ scattering lengths from measurement of π+π− atom lifetime
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number704
dspace.entity.typePublication
relation.isAuthorOfPublicationc0bf8e93-cff6-4c10-95f7-806157924d8c
relation.isAuthorOfPublication682ab38e-cb48-4875-bf82-0a376b7d3cd5
relation.isAuthorOfPublicationa4ac4015-c1fc-4a70-8268-a1ce2c060bbc
relation.isAuthorOfPublication231831fe-b5b2-4260-89d8-86d157f500bd
relation.isAuthorOfPublication396263ef-5d7e-4436-83b1-79b8b505f8f0
relation.isAuthorOfPublication28e67a1e-d782-401d-9af4-d52095464f22
relation.isAuthorOfPublicationf2628ceb-d2c4-422c-9b27-916907f32395
relation.isAuthorOfPublication.latestForDiscoveryc0bf8e93-cff6-4c10-95f7-806157924d8c

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
2011_PhysLetB_Adeva_Determination.pdf
Size:
330.56 KB
Format:
Adobe Portable Document Format
Download

Collections

Física de Partículas
Cirurxía e Especialidades Médico-Cirúrxicas
Instituto Galego de Física de Altas Enerxías (IGFAE)