High-statistics measurement of the η→3π0 decay at the Mainz Microtron

S. Prakhov; S. Abt; P. Achenbach; P. Adlarson; F. Afzal; P. Aguar-Bartolomé; Z. Ahmed; J. Ahrens; J. R.M. Annand; H. J. Arends; K. Bantawa; M. Bashkanov; R. Beck; M. Biroth; N. S. Borisov; A. Braghieri; W. J. Briscoe; S. Cherepnya; F. Cividini; C. Collicott; S. Costanza; A. Denig; M. Dieterle; E. J. Downie; P. Drexler; M. I. Ferretti Bondy; L. V. Fil'Kov; A. Fix; S. Gardner; S. Garni; D. I. Glazier; I. Gorodnov; W. Gradl; G. M. Gurevich; C. B. Hamill; L. Heijkenskjöld; D. Hornidge; G. M. Huber; A. Käser; V. L. Kashevarov; S. Kay; I. Keshelashvili; R. Kondratiev; M. Korolija; B. Krusche; A. Lazarev; V. Lisin; K. Livingston; D. P. Watts; A2 Collaboration at MAMI; Dominik Werthmüller

doi:10.1103/PhysRevC.97.065203

High-statistics measurement of the η→3π0 decay at the Mainz Microtron

S. Prakhov, S. Abt, P. Achenbach, P. Adlarson, F. Afzal, P. Aguar-Bartolomé, Z. Ahmed, J. Ahrens, J. R.M. Annand, H. J. Arends, K. Bantawa, M. Bashkanov, R. Beck, M. Biroth, N. S. Borisov, A. Braghieri, W. J. Briscoe, S. Cherepnya, F. Cividini, C. CollicottS. Costanza, A. Denig, M. Dieterle, E. J. Downie, P. Drexler, M. I. Ferretti Bondy, L. V. Fil'Kov, A. Fix, S. Gardner, S. Garni, D. I. Glazier, I. Gorodnov, W. Gradl, G. M. Gurevich, C. B. Hamill, L. Heijkenskjöld, D. Hornidge, G. M. Huber, A. Käser, V. L. Kashevarov, S. Kay, I. Keshelashvili, R. Kondratiev, M. Korolija, B. Krusche, A. Lazarev, V. Lisin, K. Livingston, D. P. Watts, A2 Collaboration at MAMI, Dominik Werthmüller

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The largest, at the moment, statistics of 7×106η→3π0 decays, based on 6.2×107η mesons produced in the γp→ηp reaction, has been accumulated by the A2 Collaboration at the Mainz Microtron, MAMI. It allowed a detailed study of the η→3π0 dynamics beyond its conventional parametrization with just the quadratic slope parameter α and enabled, for the first time, a measurement of the second-order term and a better understanding of the cusp structure in the neutral decay. The present data are also compared to recent theoretical calculations that predict a nonlinear dependence along the quadratic distance from the Dalitz-plot center.

Original language	English
Article number	065203
Journal	Physical Review C
Volume	97
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.97.065203
Publication status	Published - 7 Jun 2018

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PhysRevC.97.065203
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Prakhov, S., Abt, S., Achenbach, P., Adlarson, P., Afzal, F., Aguar-Bartolomé, P., Ahmed, Z., Ahrens, J., Annand, J. R. M., Arends, H. J., Bantawa, K., Bashkanov, M., Beck, R., Biroth, M., Borisov, N. S., Braghieri, A., Briscoe, W. J., Cherepnya, S., Cividini, F., ... Werthmüller, D. (2018). High-statistics measurement of the η→3π0 decay at the Mainz Microtron. Physical Review C, 97(6), Article 065203. https://doi.org/10.1103/PhysRevC.97.065203

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title = "High-statistics measurement of the η→3π0 decay at the Mainz Microtron",

abstract = "The largest, at the moment, statistics of 7×106η→3π0 decays, based on 6.2×107η mesons produced in the γp→ηp reaction, has been accumulated by the A2 Collaboration at the Mainz Microtron, MAMI. It allowed a detailed study of the η→3π0 dynamics beyond its conventional parametrization with just the quadratic slope parameter α and enabled, for the first time, a measurement of the second-order term and a better understanding of the cusp structure in the neutral decay. The present data are also compared to recent theoretical calculations that predict a nonlinear dependence along the quadratic distance from the Dalitz-plot center.",

author = "S. Prakhov and S. Abt and P. Achenbach and P. Adlarson and F. Afzal and P. Aguar-Bartolom{\'e} and Z. Ahmed and J. Ahrens and Annand, {J. R.M.} and Arends, {H. J.} and K. Bantawa and M. Bashkanov and R. Beck and M. Biroth and Borisov, {N. S.} and A. Braghieri and Briscoe, {W. J.} and S. Cherepnya and F. Cividini and C. Collicott and S. Costanza and A. Denig and M. Dieterle and Downie, {E. J.} and P. Drexler and {Ferretti Bondy}, {M. I.} and Fil'Kov, {L. V.} and A. Fix and S. Gardner and S. Garni and Glazier, {D. I.} and I. Gorodnov and W. Gradl and Gurevich, {G. M.} and Hamill, {C. B.} and L. Heijkenskj{\"o}ld and D. Hornidge and Huber, {G. M.} and A. K{\"a}ser and Kashevarov, {V. L.} and S. Kay and I. Keshelashvili and R. Kondratiev and M. Korolija and B. Krusche and A. Lazarev and V. Lisin and K. Livingston and Watts, {D. P.} and {A2 Collaboration at MAMI} and Dominik Werthm{\"u}ller",

note = "{\textcopyright} 2018, The Author(s). ",

year = "2018",

month = jun,

day = "7",

doi = "10.1103/PhysRevC.97.065203",

language = "English",

volume = "97",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

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Prakhov, S, Abt, S, Achenbach, P, Adlarson, P, Afzal, F, Aguar-Bartolomé, P, Ahmed, Z, Ahrens, J, Annand, JRM, Arends, HJ, Bantawa, K, Bashkanov, M, Beck, R, Biroth, M, Borisov, NS, Braghieri, A, Briscoe, WJ, Cherepnya, S, Cividini, F, Collicott, C, Costanza, S, Denig, A, Dieterle, M, Downie, EJ, Drexler, P, Ferretti Bondy, MI, Fil'Kov, LV, Fix, A, Gardner, S, Garni, S, Glazier, DI, Gorodnov, I, Gradl, W, Gurevich, GM, Hamill, CB, Heijkenskjöld, L, Hornidge, D, Huber, GM, Käser, A, Kashevarov, VL, Kay, S, Keshelashvili, I, Kondratiev, R, Korolija, M, Krusche, B, Lazarev, A, Lisin, V, Livingston, K, Watts, DP, A2 Collaboration at MAMI & Werthmüller, D 2018, 'High-statistics measurement of the η→3π0 decay at the Mainz Microtron', Physical Review C, vol. 97, no. 6, 065203. https://doi.org/10.1103/PhysRevC.97.065203

TY - JOUR

T1 - High-statistics measurement of the η→3π0 decay at the Mainz Microtron

AU - Prakhov, S.

AU - Abt, S.

AU - Achenbach, P.

AU - Adlarson, P.

AU - Afzal, F.

AU - Aguar-Bartolomé, P.

AU - Ahmed, Z.

AU - Ahrens, J.

AU - Annand, J. R.M.

AU - Arends, H. J.

AU - Bantawa, K.

AU - Bashkanov, M.

AU - Beck, R.

AU - Biroth, M.

AU - Borisov, N. S.

AU - Braghieri, A.

AU - Briscoe, W. J.

AU - Cherepnya, S.

AU - Cividini, F.

AU - Collicott, C.

AU - Costanza, S.

AU - Denig, A.

AU - Dieterle, M.

AU - Downie, E. J.

AU - Drexler, P.

AU - Ferretti Bondy, M. I.

AU - Fil'Kov, L. V.

AU - Fix, A.

AU - Gardner, S.

AU - Garni, S.

AU - Glazier, D. I.

AU - Gorodnov, I.

AU - Gradl, W.

AU - Gurevich, G. M.

AU - Hamill, C. B.

AU - Heijkenskjöld, L.

AU - Hornidge, D.

AU - Huber, G. M.

AU - Käser, A.

AU - Kashevarov, V. L.

AU - Kay, S.

AU - Keshelashvili, I.

AU - Kondratiev, R.

AU - Korolija, M.

AU - Krusche, B.

AU - Lazarev, A.

AU - Lisin, V.

AU - Livingston, K.

AU - Watts, D. P.

AU - A2 Collaboration at MAMI

AU - Werthmüller, Dominik

PY - 2018/6/7

Y1 - 2018/6/7

N2 - The largest, at the moment, statistics of 7×106η→3π0 decays, based on 6.2×107η mesons produced in the γp→ηp reaction, has been accumulated by the A2 Collaboration at the Mainz Microtron, MAMI. It allowed a detailed study of the η→3π0 dynamics beyond its conventional parametrization with just the quadratic slope parameter α and enabled, for the first time, a measurement of the second-order term and a better understanding of the cusp structure in the neutral decay. The present data are also compared to recent theoretical calculations that predict a nonlinear dependence along the quadratic distance from the Dalitz-plot center.

AB - The largest, at the moment, statistics of 7×106η→3π0 decays, based on 6.2×107η mesons produced in the γp→ηp reaction, has been accumulated by the A2 Collaboration at the Mainz Microtron, MAMI. It allowed a detailed study of the η→3π0 dynamics beyond its conventional parametrization with just the quadratic slope parameter α and enabled, for the first time, a measurement of the second-order term and a better understanding of the cusp structure in the neutral decay. The present data are also compared to recent theoretical calculations that predict a nonlinear dependence along the quadratic distance from the Dalitz-plot center.

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U2 - 10.1103/PhysRevC.97.065203

DO - 10.1103/PhysRevC.97.065203

M3 - Article

AN - SCOPUS:85048173878

SN - 2469-9985

VL - 97

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 065203

ER -

High-statistics measurement of the η→3π0 decay at the Mainz Microtron

Abstract

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