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

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.

doi:10.1103/PhysRevC.97.065203

Title: High-statistics measurement of the $η \to 3 π^{0}$ 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:: 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. more »« less

Publication Date:: 2018-06-07

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.

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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., 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.  https://doi.org/10.1103/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., 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.  https://doi.org/10.1103/PhysRevC.97.065203.

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@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}

}

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Borasoy, B.; Nißler, R.
The European Physical Journal A, Vol. 26, Issue 3
DOI: 10.1140/epja/i2005-10188-9

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 $η \to 3 π$
journal, September 2015

Guo, Peng; Danilkin, Igor V.; Schott, Diane
Physical Review D, Vol. 92, Issue 5
DOI: 10.1103/PhysRevD.92.054016

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

Kampf, Karol; Knecht, Marc; Novotný, Jiří
Physical Review D, Vol. 84, Issue 11
DOI: 10.1103/PhysRevD.84.114015

Extended chiral Khuri–Treiman formalism for $$\eta \rightarrow 3\pi $$ η → 3 π and the role of the $$a_0(980)$$ a 0 ( 980 ) , $$f_0(980)$$ f 0 ( 980 ) resonances
journal, August 2017

Albaladejo, M.; Moussallam, B.
The European Physical Journal C, Vol. 77, Issue 8
DOI: 10.1140/epjc/s10052-017-5052-x

Measurement of $K^{-} \vec{p} η Λ$ near threshold
journal, October 2001

Starostin, A.; Nefkens, B. M. K.; Berger, E.
Physical Review C, Vol. 64, Issue 5
DOI: 10.1103/PhysRevC.64.055205

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

Bass, Steven D.; Moskal, Pawel
Reviews of Modern Physics, Vol. 91, Issue 1
DOI: 10.1103/revmodphys.91.015003

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

Abstract

Citation Formats

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Extended chiral Khuri–Treiman formalism for $$\eta \rightarrow 3\pi $$ η → 3 π and the role of the $$a_0(980)$$ a 0 ( 980 ) , $$f_0(980)$$ f 0 ( 980 ) resonances journal, August 2017

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

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

Title: High-statistics measurement of the $η \to 3 π^{0}$ decay at the Mainz Microtron

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

Measurement of $π^{0} Λ$ , ${\bar{K}}^{0} n$ , 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 $η \to 3 π^{0}$ decay
journal, February 2009

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

Measurement of the slope parameter for the $η \to 3 π^{0}$ decay in the $pp \to pp η$ reaction
journal, October 2007

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

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

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

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

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

Determination of the Quadratic Slope Parameter in $η \to 3 π^{0}$ Decay
journal, October 2001

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

Dynamics of η→3π0 decay
journal, May 2001

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

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

Measurement of the $γ p \to K^{0} Σ^{+}$ 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 $η \to 3 π^{0}$ decay with the Crystal Ball detector at the Mainz Microtron (MAMI-C)
journal, March 2009

Measurement of the $η \to π^{+} π^{-} π^{0}$ Dalitz plot distribution
journal, October 2014

Measurement of the matrix elements for the decays $η \to π^{+} π^{-} π^{0}$ and $η / η^{'} \to π^{0} π^{0} π^{0}$
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

Experimental study of the $γ p \to η p$ 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

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

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

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

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

Extended chiral Khuri–Treiman formalism for $$\eta \rightarrow 3\pi $$ η → 3 π and the role of the $$a_0(980)$$ a 0 ( 980 ) , $$f_0(980)$$ f 0 ( 980 ) resonances
journal, August 2017

Measurement of $K^{-} \vec{p} η Λ$ 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

$η^{'}$ and $η$ mesons with connection to anomalous glue
journal, February 2019