ChPT test at NA48 and NA62 experiment at CERN

Roberto Piandani; F. Ambrosino; A. Antonelli; G. Anzivino; R. Arcidiacono; W. Baldini; S. Balev; J. R. Batley; M. Behler; S. Bifani; C. Biino; A. Bizzeti; B. Bloch-Devaux; G. Bocquet; V. Bolotov; F. Bucci; N. Cabibbo; M. Calvetti; N. Cartiglia; A. Ceccucci; P. Cenci; C. Cerri; C. Cheshkov; J. B. Chèze; M. Clemencic; G. Collazuol; F. Costantini; A. Cotta Ramusino; D. Coward; D. Cundy; A. Dabrowski; G. D'Agostini; P. Dalpiaz; C. Damiani; H. Danielsson; M. De Beer; G. Dellacasa; J. Derré; H. Dibon; D. Di Filippo; L. DiLella; N. Doble; V. Duk; J. Engelfried; K. Eppard; V. Falaleev; R. Fantechi; M. Fidecaro; L. Fiorini; M. Velasco; for the NA48/2 and NA62 Collaboration

doi:10.1016/j.nuclphysbps.2015.01.017

ChPT test at NA48 and NA62 experiment at CERN

Roberto Piandani^*, F. Ambrosino, A. Antonelli, G. Anzivino, R. Arcidiacono, W. Baldini, S. Balev, J. R. Batley, M. Behler, S. Bifani, C. Biino, A. Bizzeti, B. Bloch-Devaux, G. Bocquet, V. Bolotov, F. Bucci, N. Cabibbo, M. Calvetti, N. Cartiglia, A. CeccucciP. Cenci, C. Cerri, C. Cheshkov, J. B. Chèze, M. Clemencic, G. Collazuol, F. Costantini, A. Cotta Ramusino, D. Coward, D. Cundy, A. Dabrowski, G. D'Agostini, P. Dalpiaz, C. Damiani, H. Danielsson, M. De Beer, G. Dellacasa, J. Derré, H. Dibon, D. Di Filippo, L. DiLella, N. Doble, V. Duk, J. Engelfried, K. Eppard, V. Falaleev, R. Fantechi, M. Fidecaro, L. Fiorini, M. Velasco, for the NA48/2 and NA62 Collaboration

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

The new published measurements of the K^± → ^π± γγ decay with minimum bias data samples collected by the two experiments NA48/2 and NA62 are discussed. The results include a model independent decay rate measurement and fits to Chiral Perturbation Theory (ChPT) description. The model independent branching ratio in the kinematic range z = (m_γγ/m_K)² > 0.2, obtained by combining the NA48/2 and NA62 results, is BMI = (0.965 ± 0.63) × 10^-6. The combined branching ratio in the full kinematic range assuming a ChPT description is B_ChPT = (1.003±0.056)×10^-6. The uncertainties are dominated by the statistical errors. The data support the ChPT prediction for a cusp in the di-photon invariant mass spectrum at the two pion threshold and are in agreement with both O(p⁴) and O(p⁶) ChPT predictions.

Original language	English (US)
Pages (from-to)	75-79
Number of pages	5
Journal	Nuclear and Particle Physics Proceedings
Volume	258-259
DOIs	https://doi.org/10.1016/j.nuclphysbps.2015.01.017
State	Published - 2015

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.nuclphysbps.2015.01.017

Cite this

Piandani, R., Ambrosino, F., Antonelli, A., Anzivino, G., Arcidiacono, R., Baldini, W., Balev, S., Batley, J. R., Behler, M., Bifani, S., Biino, C., Bizzeti, A., Bloch-Devaux, B., Bocquet, G., Bolotov, V., Bucci, F., Cabibbo, N., Calvetti, M., Cartiglia, N., ... for the NA48/2 and NA62 Collaboration (2015). ChPT test at NA48 and NA62 experiment at CERN. Nuclear and Particle Physics Proceedings, 258-259, 75-79. https://doi.org/10.1016/j.nuclphysbps.2015.01.017

@article{1c89d2b243ce4416a49473d0f8c6b826,

title = "ChPT test at NA48 and NA62 experiment at CERN",

abstract = "The new published measurements of the K± → π± γγ decay with minimum bias data samples collected by the two experiments NA48/2 and NA62 are discussed. The results include a model independent decay rate measurement and fits to Chiral Perturbation Theory (ChPT) description. The model independent branching ratio in the kinematic range z = (mγγ/mK)2 > 0.2, obtained by combining the NA48/2 and NA62 results, is BMI = (0.965 ± 0.63) × 10-6. The combined branching ratio in the full kinematic range assuming a ChPT description is BChPT = (1.003±0.056)×10-6. The uncertainties are dominated by the statistical errors. The data support the ChPT prediction for a cusp in the di-photon invariant mass spectrum at the two pion threshold and are in agreement with both O(p4) and O(p6) ChPT predictions.",

author = "Roberto Piandani and F. Ambrosino and A. Antonelli and G. Anzivino and R. Arcidiacono and W. Baldini and S. Balev and Batley, {J. R.} and M. Behler and S. Bifani and C. Biino and A. Bizzeti and B. Bloch-Devaux and G. Bocquet and V. Bolotov and F. Bucci and N. Cabibbo and M. Calvetti and N. Cartiglia and A. Ceccucci and P. Cenci and C. Cerri and C. Cheshkov and Ch{\`e}ze, {J. B.} and M. Clemencic and G. Collazuol and F. Costantini and {Cotta Ramusino}, A. and D. Coward and D. Cundy and A. Dabrowski and G. D'Agostini and P. Dalpiaz and C. Damiani and H. Danielsson and {De Beer}, M. and G. Dellacasa and J. Derr{\'e} and H. Dibon and {Di Filippo}, D. and L. DiLella and N. Doble and V. Duk and J. Engelfried and K. Eppard and V. Falaleev and R. Fantechi and M. Fidecaro and L. Fiorini and M. Velasco and {for the NA48/2 and NA62 Collaboration}",

year = "2015",

doi = "10.1016/j.nuclphysbps.2015.01.017",

language = "English (US)",

volume = "258-259",

pages = "75--79",

journal = "Nuclear and Particle Physics Proceedings",

issn = "2405-6014",

publisher = "Elsevier",

}

Piandani, R, Ambrosino, F, Antonelli, A, Anzivino, G, Arcidiacono, R, Baldini, W, Balev, S, Batley, JR, Behler, M, Bifani, S, Biino, C, Bizzeti, A, Bloch-Devaux, B, Bocquet, G, Bolotov, V, Bucci, F, Cabibbo, N, Calvetti, M, Cartiglia, N, Ceccucci, A, Cenci, P, Cerri, C, Cheshkov, C, Chèze, JB, Clemencic, M, Collazuol, G, Costantini, F, Cotta Ramusino, A, Coward, D, Cundy, D, Dabrowski, A, D'Agostini, G, Dalpiaz, P, Damiani, C, Danielsson, H, De Beer, M, Dellacasa, G, Derré, J, Dibon, H, Di Filippo, D, DiLella, L, Doble, N, Duk, V, Engelfried, J, Eppard, K, Falaleev, V, Fantechi, R, Fidecaro, M, Fiorini, L, Velasco, M & for the NA48/2 and NA62 Collaboration 2015, 'ChPT test at NA48 and NA62 experiment at CERN', Nuclear and Particle Physics Proceedings, vol. 258-259, pp. 75-79. https://doi.org/10.1016/j.nuclphysbps.2015.01.017

TY - JOUR

T1 - ChPT test at NA48 and NA62 experiment at CERN

AU - Piandani, Roberto

AU - Ambrosino, F.

AU - Antonelli, A.

AU - Anzivino, G.

AU - Arcidiacono, R.

AU - Baldini, W.

AU - Balev, S.

AU - Batley, J. R.

AU - Behler, M.

AU - Bifani, S.

AU - Biino, C.

AU - Bizzeti, A.

AU - Bloch-Devaux, B.

AU - Bocquet, G.

AU - Bolotov, V.

AU - Bucci, F.

AU - Cabibbo, N.

AU - Calvetti, M.

AU - Cartiglia, N.

AU - Ceccucci, A.

AU - Cenci, P.

AU - Cerri, C.

AU - Cheshkov, C.

AU - Chèze, J. B.

AU - Clemencic, M.

AU - Collazuol, G.

AU - Costantini, F.

AU - Cotta Ramusino, A.

AU - Coward, D.

AU - Cundy, D.

AU - Dabrowski, A.

AU - D'Agostini, G.

AU - Dalpiaz, P.

AU - Damiani, C.

AU - Danielsson, H.

AU - De Beer, M.

AU - Dellacasa, G.

AU - Derré, J.

AU - Dibon, H.

AU - Di Filippo, D.

AU - DiLella, L.

AU - Doble, N.

AU - Duk, V.

AU - Engelfried, J.

AU - Eppard, K.

AU - Falaleev, V.

AU - Fantechi, R.

AU - Fidecaro, M.

AU - Fiorini, L.

AU - Velasco, M.

AU - for the NA48/2 and NA62 Collaboration

PY - 2015

Y1 - 2015

N2 - The new published measurements of the K± → π± γγ decay with minimum bias data samples collected by the two experiments NA48/2 and NA62 are discussed. The results include a model independent decay rate measurement and fits to Chiral Perturbation Theory (ChPT) description. The model independent branching ratio in the kinematic range z = (mγγ/mK)2 > 0.2, obtained by combining the NA48/2 and NA62 results, is BMI = (0.965 ± 0.63) × 10-6. The combined branching ratio in the full kinematic range assuming a ChPT description is BChPT = (1.003±0.056)×10-6. The uncertainties are dominated by the statistical errors. The data support the ChPT prediction for a cusp in the di-photon invariant mass spectrum at the two pion threshold and are in agreement with both O(p4) and O(p6) ChPT predictions.

AB - The new published measurements of the K± → π± γγ decay with minimum bias data samples collected by the two experiments NA48/2 and NA62 are discussed. The results include a model independent decay rate measurement and fits to Chiral Perturbation Theory (ChPT) description. The model independent branching ratio in the kinematic range z = (mγγ/mK)2 > 0.2, obtained by combining the NA48/2 and NA62 results, is BMI = (0.965 ± 0.63) × 10-6. The combined branching ratio in the full kinematic range assuming a ChPT description is BChPT = (1.003±0.056)×10-6. The uncertainties are dominated by the statistical errors. The data support the ChPT prediction for a cusp in the di-photon invariant mass spectrum at the two pion threshold and are in agreement with both O(p4) and O(p6) ChPT predictions.

UR - http://www.scopus.com/inward/record.url?scp=84977083368&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84977083368&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysbps.2015.01.017

DO - 10.1016/j.nuclphysbps.2015.01.017

M3 - Conference article

AN - SCOPUS:84977083368

SN - 2405-6014

VL - 258-259

SP - 75

EP - 79

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

ER -

ChPT test at NA48 and NA62 experiment at CERN

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this