skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High-statistics measurement of the η 3 π 0 decay at the Mainz Microtron

Abstract

Here, the largest, at the moment, statistics of 7 × 106 η → 3π0 decays, based on 6.2 × 107 η 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 mea- surement 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.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Research Org.:
Kent State Univ., Kent, OH (United States); George Washington Univ., Washington, DC (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Org.:
A2 Collaboration at MAMI
OSTI Identifier:
1441029
Alternate Identifier(s):
OSTI ID: 1440989
Grant/Contract Number:  
FG02-99ER41110; FG02-88ER40415; FG02-01ER41194; SC0016583
Resource Type:
Published Article
Journal Name:
Physical Review C
Additional Journal Information:
Journal Name: Physical Review C Journal Volume: 97 Journal Issue: 6; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Eta Meson; Meson Decays

Citation Formats

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., Collicott, C., Costanza, S., Denig, A., Dieterle, M., Downie, E. J., Drexler, P., Ferretti Bondy, M. I., Fil'kov, L. V., Fix, A., Gardner, S., Garni, S., Glazier, D. I., Gorodnov, I., Gradl, W., Gurevich, G. M., Hamill, C. B., Heijkenskjöld, L., Hornidge, D., Huber, G. M., Käser, A., Kashevarov, V. L., Kay, S., Keshelashvili, I., Kondratiev, R., Korolija, M., Krusche, B., Lazarev, A., Lisin, V., Livingston, K., Lutterer, S., MacGregor, I. J. D., Manley, D. M., Martel, P. P., McGeorge, J. C., Middleton, D. G., Miskimen, R., Mornacchi, E., Mushkarenkov, A., Neganov, A., Neiser, A., Oberle, M., Ostrick, M., Otte, P. B., Paudyal, D., Pedroni, P., Polonski, A., Ron, G., Rostomyan, T., Sarty, A., Sfienti, C., Sokhoyan, V., Spieker, K., Steffen, O., Strakovsky, I. I., Strandberg, B., Strub, Th., Supek, I., Thiel, A., Thiel, M., Thomas, A., Unverzagt, M., Usov, Yu. A., Wagner, S., Walford, N. K., Watts, D. P., Werthmüller, D., Wettig, J., Witthauer, L., Wolfes, M., Zana, L. A., and A2 Collaboration at MAMI. High-statistics measurement of the η → 3 π 0 decay at the Mainz Microtron. United States: N. p., 2018. Web. doi:10.1103/PhysRevC.97.065203.
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., Collicott, C., Costanza, S., Denig, A., Dieterle, M., Downie, E. J., Drexler, P., Ferretti Bondy, M. I., Fil'kov, L. V., Fix, A., Gardner, S., Garni, S., Glazier, D. I., Gorodnov, I., Gradl, W., Gurevich, G. M., Hamill, C. B., Heijkenskjöld, L., Hornidge, D., Huber, G. M., Käser, A., Kashevarov, V. L., Kay, S., Keshelashvili, I., Kondratiev, R., Korolija, M., Krusche, B., Lazarev, A., Lisin, V., Livingston, K., Lutterer, S., MacGregor, I. J. D., Manley, D. M., Martel, P. P., McGeorge, J. C., Middleton, D. G., Miskimen, R., Mornacchi, E., Mushkarenkov, A., Neganov, A., Neiser, A., Oberle, M., Ostrick, M., Otte, P. B., Paudyal, D., Pedroni, P., Polonski, A., Ron, G., Rostomyan, T., Sarty, A., Sfienti, C., Sokhoyan, V., Spieker, K., Steffen, O., Strakovsky, I. I., Strandberg, B., Strub, Th., Supek, I., Thiel, A., Thiel, M., Thomas, A., Unverzagt, M., Usov, Yu. A., Wagner, S., Walford, N. K., Watts, D. P., Werthmüller, D., Wettig, J., Witthauer, L., Wolfes, M., Zana, L. A., & A2 Collaboration at MAMI. High-statistics measurement of the η → 3 π 0 decay at the Mainz Microtron. United States. doi:10.1103/PhysRevC.97.065203.
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., Collicott, C., Costanza, S., Denig, A., Dieterle, M., Downie, E. J., Drexler, P., Ferretti Bondy, M. I., Fil'kov, L. V., Fix, A., Gardner, S., Garni, S., Glazier, D. I., Gorodnov, I., Gradl, W., Gurevich, G. M., Hamill, C. B., Heijkenskjöld, L., Hornidge, D., Huber, G. M., Käser, A., Kashevarov, V. L., Kay, S., Keshelashvili, I., Kondratiev, R., Korolija, M., Krusche, B., Lazarev, A., Lisin, V., Livingston, K., Lutterer, S., MacGregor, I. J. D., Manley, D. M., Martel, P. P., McGeorge, J. C., Middleton, D. G., Miskimen, R., Mornacchi, E., Mushkarenkov, A., Neganov, A., Neiser, A., Oberle, M., Ostrick, M., Otte, P. B., Paudyal, D., Pedroni, P., Polonski, A., Ron, G., Rostomyan, T., Sarty, A., Sfienti, C., Sokhoyan, V., Spieker, K., Steffen, O., Strakovsky, I. I., Strandberg, B., Strub, Th., Supek, I., Thiel, A., Thiel, M., Thomas, A., Unverzagt, M., Usov, Yu. A., Wagner, S., Walford, N. K., Watts, D. P., Werthmüller, D., Wettig, J., Witthauer, L., Wolfes, M., Zana, L. A., and A2 Collaboration at MAMI. Thu . "High-statistics measurement of the η → 3 π 0 decay at the Mainz Microtron". United States. doi:10.1103/PhysRevC.97.065203.
@article{osti_1441029,
title = {High-statistics measurement of the η → 3 π 0 decay at the Mainz Microtron},
author = {Prakhov, S. and Abt, S. and Achenbach, P. and Adlarson, P. and Afzal, F. and Aguar-Bartolomé, P. and Ahmed, Z. and Ahrens, J. and Annand, J. R. M. and Arends, H. J. and Bantawa, K. and Bashkanov, M. and Beck, R. and Biroth, M. and Borisov, N. S. and Braghieri, A. and Briscoe, W. J. and Cherepnya, S. and Cividini, F. and Collicott, C. and Costanza, S. and Denig, A. and Dieterle, M. and Downie, E. J. and Drexler, P. and Ferretti Bondy, M. I. and Fil'kov, L. V. and Fix, A. and Gardner, S. and Garni, S. and Glazier, D. I. and Gorodnov, I. and Gradl, W. and Gurevich, G. M. and Hamill, C. B. and Heijkenskjöld, L. and Hornidge, D. and Huber, G. M. and Käser, A. and Kashevarov, V. L. and Kay, S. and Keshelashvili, I. and Kondratiev, R. and Korolija, M. and Krusche, B. and Lazarev, A. and Lisin, V. and Livingston, K. and Lutterer, S. and MacGregor, I. J. D. and Manley, D. M. and Martel, P. P. and McGeorge, J. C. and Middleton, D. G. and Miskimen, R. and Mornacchi, E. and Mushkarenkov, A. and Neganov, A. and Neiser, A. and Oberle, M. and Ostrick, M. and Otte, P. B. and Paudyal, D. and Pedroni, P. and Polonski, A. and Ron, G. and Rostomyan, T. and Sarty, A. and Sfienti, C. and Sokhoyan, V. and Spieker, K. and Steffen, O. and Strakovsky, I. I. and Strandberg, B. and Strub, Th. and Supek, I. and Thiel, A. and Thiel, M. and Thomas, A. and Unverzagt, M. and Usov, Yu. A. and Wagner, S. and Walford, N. K. and Watts, D. P. and Werthmüller, D. and Wettig, J. and Witthauer, L. and Wolfes, M. and Zana, L. A. and A2 Collaboration at MAMI},
abstractNote = {Here, the largest, at the moment, statistics of 7 × 106 η → 3π0 decays, based on 6.2 × 107 η 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 mea- surement 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.},
doi = {10.1103/PhysRevC.97.065203},
journal = {Physical Review C},
number = 6,
volume = 97,
place = {United States},
year = {2018},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevC.97.065203

Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Measurement of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>η</mml:mi><mml:mo>→</mml:mo><mml:mn>3</mml:mn><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> slope parameter α with the KLOE detector
journal, October 2010


Three-body final state interaction in η→ 3π updated
journal, August 2017


Measurement of π 0 Λ , K ¯ 0 n , and π 0 Σ 0 production in K p interactions for p K between 514 and 750 MeV/ c
journal, August 2009


Decay dynamics of the process η→3π0
journal, January 1998


Review of Particle Physics
journal, October 2016


ππ scattering
journal, June 2001


Dispersive analysis of the decay η → 3π
journal, May 1996


Predictions for the cusp in η 3 π 0 decay
journal, February 2009


Measurement of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>η</mml:mi><mml:mo>→</mml:mo><mml:mn>3</mml:mn><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> Dalitz plot distribution with the WASA detector at COSY
journal, June 2009


Design of a tagged photon spectrometer for use with the Mainz 840 MeV microtron
journal, March 1991

  • Anthony, I.; Kellie, J. D.; Hall, S. J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 301, Issue 2
  • DOI: 10.1016/0168-9002(91)90464-2

Measurement of the slope parameter for the η 3 π 0 decay in the pp pp η reaction
journal, October 2007


Response of TAPS to monochromatic photons with energies between 45 and 790 MeV
journal, July 1994

  • Gabler, A. R.; Döring, W.; Fuchs, M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 346, Issue 1-2
  • DOI: 10.1016/0168-9002(94)90701-3

Rescattering effects in η → 3π decays
journal, February 2011

  • Schneider, Sebastian P.; Kubis, Bastian; Ditsche, Christoph
  • Journal of High Energy Physics, Vol. 2011, Issue 2
  • DOI: 10.1007/JHEP02(2011)028

Determination of the S-wave π π scattering lengths from a study of K ±→π ± π 0 π 0 decays
journal, October 2009


Cusps in <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msub><mml:mi>K</mml:mi><mml:mi>L</mml:mi></mml:msub><mml:mo>→</mml:mo><mml:mn>3</mml:mn><mml:mi>π</mml:mi></mml:math> decays
journal, January 2008


The BaF/sub 2/ photon spectrometer TAPS
journal, April 1991

  • Novotny, R.
  • IEEE Transactions on Nuclear Science, Vol. 38, Issue 2
  • DOI: 10.1109/23.289329

Pion-pion scattering amplitude. IV. Improved analysis with once subtracted Roy-like equations up to 1100 MeV
journal, April 2011


The 1.5GeV harmonic double-sided microtron at Mainz University
journal, August 2008

  • Kaiser, K. -H.; Aulenbacher, K.; Chubarov, O.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 593, Issue 3
  • DOI: 10.1016/j.nima.2008.05.018

Determination of the Quadratic Slope Parameter in η 3 π 0 Decay
journal, October 2001


η 3 π : Study of the Dalitz Plot and Extraction of the Quark Mass Ratio Q
journal, January 2017


Dynamics of η→3π0 decay
journal, May 2001

  • Achasov, M. N.; Beloborodov, K. I.; Berdyugin, A. V.
  • Journal of Experimental and Theoretical Physics Letters, Vol. 73, Issue 9
  • DOI: 10.1134/1.1385655

A focal plane system for the 855 MeV tagged photon spectrometer at MAMI-B
journal, January 1996

  • Hall, S. J.; Miller, G. J.; Beck, R.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 368, Issue 3
  • DOI: 10.1016/0168-9002(95)00661-3

Status Report on the Normal Conducting CW Racetrack Microtron Cascade "MAMI"
journal, August 1983

  • Herminghaus, H.; Dreher, B.; Futeneuer, B.
  • IEEE Transactions on Nuclear Science, Vol. 30, Issue 4
  • DOI: 10.1109/TNS.1983.4336636

Measurement of the γ p K 0 Σ + reaction with the Crystal Ball/TAPS detectors at the Mainz Microtron
journal, October 2013


Determination of η → π + π π 0 Dalitz plot slopes and asymmetries with the KLOE detector
journal, May 2008


Measurement of the slope parameter α for the η 3 π 0 decay with the Crystal Ball detector at the Mainz Microtron (MAMI-C)
journal, March 2009


Measurement of the η π + π π 0 Dalitz plot distribution
journal, October 2014


Measurement of the matrix elements for the decays η π + π π 0 and η / η π 0 π 0 π 0
journal, July 2015


Eta Decays at and Beyond p4 in Chiral Perturbation Theory
journal, January 2002


Pion-pion scattering amplitude. III. Improving the analysis with forward dispersion relations and Roy equations
journal, March 2008


Convergence properties of $$\eta \rightarrow 3\pi $$ η → 3 π decays in chiral perturbation theory
journal, January 2017


Final state interactions and Khuri-Treiman equations in,ν → 3π decays
journal, April 1996


η → 3π to one loop
journal, January 1985


Neutral decays of the ?-meson
journal, September 1984

  • Alde, D.; Binon, F.; Bricman, C.
  • Zeitschrift f�r Physik C Particles and Fields, Vol. 25, Issue 3
  • DOI: 10.1007/BF01547921

Experimental study of the γ p η p reaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C)
journal, September 2010


η→3π at two loops in Chiral Perturbation Theory
journal, November 2007


Study of η and η Photoproduction at MAMI
journal, May 2017


Precision measurement of the η → π + π − π 0 Dalitz plot distribution with the KLOE detector
journal, May 2016

  • Anastasi, A.; Babusci, D.; Bencivenni, G.
  • Journal of High Energy Physics, Vol. 2016, Issue 5
  • DOI: 10.1007/JHEP05(2016)019

Hadronic η and $ \eta{^\prime}$ decays
journal, December 2005


Upgrade of the Glasgow photon tagging spectrometer for Mainz MAMI-C
journal, June 2008

  • McGeorge, J. C.; Kellie, J. D.; Annand, J. R. M.
  • The European Physical Journal A, Vol. 37, Issue 1
  • DOI: 10.1140/epja/i2007-10606-0

Three-body final state interaction in η 3 π
journal, September 2015


Analytical dispersive construction of η 3 π amplitude: First order in isospin breaking
journal, December 2011


Measurement of K p η Λ near threshold
journal, October 2001


Determination of the Dalitz plot parameter $ \alpha$ for the decay $ \eta$ → 3 $ \pi^{0}_{}$ with the Crystal Ball at MAMI-B
journal, January 2009

  • Unverzagt, M.; Aguar-Bartolomé, P.; Ahrens, J.
  • The European Physical Journal A, Vol. 39, Issue 2
  • DOI: 10.1140/epja/i2008-10710-7

    Works referencing / citing this record:

    η and η mesons with connection to anomalous glue
    journal, February 2019