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Precision measurement of $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$ and determination of the $\pi^+\pi^-$ contribution to the muon anomaly with the KLOE detector
We have measured the ratio $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$, with the KLOE detector at DA$\Phi$NE for a total integrated luminosity of $\sim$ 240 pb$^{-1}$. From this ratio we obtain the cross section $\sigma(e^+e^-\rightarrow\pi^+\pi^-)$. From t...
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Lenguaje: | eng |
Publicado: |
2012
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2013.02.029 http://cds.cern.ch/record/1501416 |
_version_ | 1780927043928588288 |
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author | Babusci, D. Badoni, D. Balwierz-Pytko, I. Bencivenni, G. Bini, C. Bloise, C. Bossi, F. Branchini, P. Budano, A. Caldeira Balkestahl, L. Capon, G. Ceradini, F. Ciambrone, P. Curciarello, F. Czerwinski, E. Dane, E. De Leo, V. De Lucia, E. De Robertis, G. De Santis, A. De Simone, P. Di Domenico, A. Di Donato, C. Domenici, D. Erriquez, O. Fanizzi, G. Felici, G. Fiore, S. Franzini, P. Gauzzi, P. Giardina, G. Giovannella, S. Gonnella, F. Graziani, E. Happacher, F. Heijkenskjold, L. Hoistad, B. Iafolla, L. Iarocci, E. Jacewicz, M. Johansson, T. Kluge, W. Kupsc, A. Lee-Franzini, J. Loddo, F. Lukin, P. Mandaglio, G. Martemianov, M. Martini, M. Mascolo, M. Messi, R. Miscetti, S. Morello, G. Moricciani, D. Moskal, P. Muller, S. Nguyen, F. Passeri, A. Patera, V. Prado Longhi, I. Ranieri, A. Redmer, C.F. Santangelo, P. Sarra, I. Schioppa, M. Sciascia, B. Silarski, M. Taccini, C. Tortora, L. Venanzoni, G. Versaci, R. Wislicki, W. Wolke, M. Zdebik, J. |
author_facet | Babusci, D. Badoni, D. Balwierz-Pytko, I. Bencivenni, G. Bini, C. Bloise, C. Bossi, F. Branchini, P. Budano, A. Caldeira Balkestahl, L. Capon, G. Ceradini, F. Ciambrone, P. Curciarello, F. Czerwinski, E. Dane, E. De Leo, V. De Lucia, E. De Robertis, G. De Santis, A. De Simone, P. Di Domenico, A. Di Donato, C. Domenici, D. Erriquez, O. Fanizzi, G. Felici, G. Fiore, S. Franzini, P. Gauzzi, P. Giardina, G. Giovannella, S. Gonnella, F. Graziani, E. Happacher, F. Heijkenskjold, L. Hoistad, B. Iafolla, L. Iarocci, E. Jacewicz, M. Johansson, T. Kluge, W. Kupsc, A. Lee-Franzini, J. Loddo, F. Lukin, P. Mandaglio, G. Martemianov, M. Martini, M. Mascolo, M. Messi, R. Miscetti, S. Morello, G. Moricciani, D. Moskal, P. Muller, S. Nguyen, F. Passeri, A. Patera, V. Prado Longhi, I. Ranieri, A. Redmer, C.F. Santangelo, P. Sarra, I. Schioppa, M. Sciascia, B. Silarski, M. Taccini, C. Tortora, L. Venanzoni, G. Versaci, R. Wislicki, W. Wolke, M. Zdebik, J. |
author_sort | Babusci, D. |
collection | CERN |
description | We have measured the ratio $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$, with the KLOE detector at DA$\Phi$NE for a total integrated luminosity of $\sim$ 240 pb$^{-1}$. From this ratio we obtain the cross section $\sigma(e^+e^-\rightarrow\pi^+\pi^-)$. From the cross section we determine the pion form factor $|F_\pi|^2$ and the two-pion contribution to the muon anomaly $a_\mu$ for $0.592<M_{\pi\pi}<0.975$ GeV, $\Delta^{\pi\pi} a_\mu$= $({\rm 385.1\pm1.1_{stat}\pm2.7_{sys+theo}})\times10^{-10}$. This result confirms the current discrepancy between the Standard Model calculation and the experimental measurement of the muon anomaly. |
id | cern-1501416 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2012 |
record_format | invenio |
spelling | cern-15014162023-06-29T04:30:52Zdoi:10.1016/j.physletb.2013.02.029http://cds.cern.ch/record/1501416engBabusci, D.Badoni, D.Balwierz-Pytko, I.Bencivenni, G.Bini, C.Bloise, C.Bossi, F.Branchini, P.Budano, A.Caldeira Balkestahl, L.Capon, G.Ceradini, F.Ciambrone, P.Curciarello, F.Czerwinski, E.Dane, E.De Leo, V.De Lucia, E.De Robertis, G.De Santis, A.De Simone, P.Di Domenico, A.Di Donato, C.Domenici, D.Erriquez, O.Fanizzi, G.Felici, G.Fiore, S.Franzini, P.Gauzzi, P.Giardina, G.Giovannella, S.Gonnella, F.Graziani, E.Happacher, F.Heijkenskjold, L.Hoistad, B.Iafolla, L.Iarocci, E.Jacewicz, M.Johansson, T.Kluge, W.Kupsc, A.Lee-Franzini, J.Loddo, F.Lukin, P.Mandaglio, G.Martemianov, M.Martini, M.Mascolo, M.Messi, R.Miscetti, S.Morello, G.Moricciani, D.Moskal, P.Muller, S.Nguyen, F.Passeri, A.Patera, V.Prado Longhi, I.Ranieri, A.Redmer, C.F.Santangelo, P.Sarra, I.Schioppa, M.Sciascia, B.Silarski, M.Taccini, C.Tortora, L.Venanzoni, G.Versaci, R.Wislicki, W.Wolke, M.Zdebik, J.Precision measurement of $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$ and determination of the $\pi^+\pi^-$ contribution to the muon anomaly with the KLOE detectorParticle Physics - ExperimentWe have measured the ratio $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$, with the KLOE detector at DA$\Phi$NE for a total integrated luminosity of $\sim$ 240 pb$^{-1}$. From this ratio we obtain the cross section $\sigma(e^+e^-\rightarrow\pi^+\pi^-)$. From the cross section we determine the pion form factor $|F_\pi|^2$ and the two-pion contribution to the muon anomaly $a_\mu$ for $0.592<M_{\pi\pi}<0.975$ GeV, $\Delta^{\pi\pi} a_\mu$= $({\rm 385.1\pm1.1_{stat}\pm2.7_{sys+theo}})\times10^{-10}$. This result confirms the current discrepancy between the Standard Model calculation and the experimental measurement of the muon anomaly.We have measured the ratio @s(e^+e^-->@p^+@p^-@c)/@s(e^+e^-->@m^+@m^-@c), with the KLOE detector at DA@FNE for a total integrated luminosity of ~240 pb^-^1. From this ratio we obtain the cross section @s(e^+e^-->@p^+@p^-). From the cross section we determine the pion form factor |F_@p|^2 and the two-pion contribution to the muon anomaly a_@m for 0.592<M_@p_@p<0.975 GeV, @D^@p^@pa_@m=(385.1+/-1.1_s_t_a_t+/-2.7_s_y_s_+_t_h_e_o)x10^-^1^0. This result confirms the current discrepancy between the Standard Model calculation and the experimental measurement of the muon anomaly.We have measured the ratio σ(e+e−→π+π−γ)/σ(e+e−→μ+μ−γ) , with the KLOE detector at DA Φ NE for a total integrated luminosity of ∼240 pb−1 . From this ratio we obtain the cross section σ(e+e−→π+π−) . From the cross section we determine the pion form factor |Fπ|2 and the two-pion contribution to the muon anomaly aμ for 0.592<Mππ<0.975 GeV , Δππaμ=(385.1±1.1stat±2.7sys+theo)×10−10 . This result confirms the current discrepancy between the Standard Model calculation and the experimental measurement of the muon anomaly.We have measured the ratio $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$, with the KLOE detector at DA$\Phi$NE for a total integrated luminosity of $\sim$ 240 pb$^{-1}$. From this ratio we obtain the cross section $\sigma(e^+e^-\rightarrow\pi^+\pi^-)$. From the cross section we determine the pion form factor $|F_\pi|^2$ and the two-pion contribution to the muon anomaly $a_\mu$ for $0.592<M_{\pi\pi}<0.975$ GeV, $\Delta^{\pi\pi} a_\mu$= $({\rm 385.1\pm1.1_{stat}\pm2.7_{sys+theo}})\times10^{-10}$. This result confirms the current discrepancy between the Standard Model calculation and the experimental measurement of the muon anomaly.arXiv:1212.4524oai:cds.cern.ch:15014162012-12-20 |
spellingShingle | Particle Physics - Experiment Babusci, D. Badoni, D. Balwierz-Pytko, I. Bencivenni, G. Bini, C. Bloise, C. Bossi, F. Branchini, P. Budano, A. Caldeira Balkestahl, L. Capon, G. Ceradini, F. Ciambrone, P. Curciarello, F. Czerwinski, E. Dane, E. De Leo, V. De Lucia, E. De Robertis, G. De Santis, A. De Simone, P. Di Domenico, A. Di Donato, C. Domenici, D. Erriquez, O. Fanizzi, G. Felici, G. Fiore, S. Franzini, P. Gauzzi, P. Giardina, G. Giovannella, S. Gonnella, F. Graziani, E. Happacher, F. Heijkenskjold, L. Hoistad, B. Iafolla, L. Iarocci, E. Jacewicz, M. Johansson, T. Kluge, W. Kupsc, A. Lee-Franzini, J. Loddo, F. Lukin, P. Mandaglio, G. Martemianov, M. Martini, M. Mascolo, M. Messi, R. Miscetti, S. Morello, G. Moricciani, D. Moskal, P. Muller, S. Nguyen, F. Passeri, A. Patera, V. Prado Longhi, I. Ranieri, A. Redmer, C.F. Santangelo, P. Sarra, I. Schioppa, M. Sciascia, B. Silarski, M. Taccini, C. Tortora, L. Venanzoni, G. Versaci, R. Wislicki, W. Wolke, M. Zdebik, J. Precision measurement of $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$ and determination of the $\pi^+\pi^-$ contribution to the muon anomaly with the KLOE detector |
title | Precision measurement of $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$ and determination of the $\pi^+\pi^-$ contribution to the muon anomaly with the KLOE detector |
title_full | Precision measurement of $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$ and determination of the $\pi^+\pi^-$ contribution to the muon anomaly with the KLOE detector |
title_fullStr | Precision measurement of $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$ and determination of the $\pi^+\pi^-$ contribution to the muon anomaly with the KLOE detector |
title_full_unstemmed | Precision measurement of $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$ and determination of the $\pi^+\pi^-$ contribution to the muon anomaly with the KLOE detector |
title_short | Precision measurement of $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$ and determination of the $\pi^+\pi^-$ contribution to the muon anomaly with the KLOE detector |
title_sort | precision measurement of $\sigma(e^+e^-\rightarrow\pi^+\pi^-\gamma)/\sigma(e^+e^-\rightarrow \mu^+\mu^-\gamma)$ and determination of the $\pi^+\pi^-$ contribution to the muon anomaly with the kloe detector |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1016/j.physletb.2013.02.029 http://cds.cern.ch/record/1501416 |
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