Helicity-Dependent Cross Sections for the Photoproduction of π 0 Pairs from Nucleons

Dieterle, M.; Witthauer, L.; Fix, A.; Abt, S.; Achenbach, P.; Adlarson, P.; Afzal, F.; Aguar Bartolome, P.; Ahmed, Z.; Annand, J. R. M.; Arends, H. J.; Bashkanov, M.; Beck, R.; Biroth, M.; Borisov, N.; Braghieri, A.; Briscoe, W. J.; Cividini, F.; Collicott, C.; Costanza, S.; Denig, A.; Dolzhikov, A. S.; Downie, E. J.; Drexler, P.; Gardner, S.; Ghosal, D.; Glazier, D. I.; Gorodnov, I.; Gradl, W.; Günther, M.; Gurevich, D.; 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.; Metag, V.; Meyer, W.; Middleton, D. G.; Miskimen, R.; Mornacchi, E.; Mullen, C.; Mushkarenkov, A.; Neganov, A.; Neiser, A.; Oberle, M.; Ostrick, M.; Otte, P. B.; Paudyal, D.; Pedroni, P.; Polonski, A.; Powell, A.; Prakhov, S. N.; Reicherz, G.; Ron, G.; Rostomyan, T.; Sarty, A.; Sfienti, C.; Sokhoyan, V.; Spieker, K.; Steffen, O.; Strakovsky, I. I.; Strub, T.; 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.; Wolfes, M.; Zana, L. A.

doi:10.1103/PhysRevLett.125.062001

Title: Helicity-Dependent Cross Sections for the Photoproduction of $π^{0}$ Pairs from Nucleons

Journal Article · Wed Aug 05 00:00:00 EDT 2020 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.125.062001· OSTI ID:1646688

Dieterle, M.; Witthauer, L.; Fix, A.; Abt, S.; Achenbach, P.; Adlarson, P.; Afzal, F.; Aguar Bartolome, P.; Ahmed, Z.; Annand, J. R. M.; Arends, H. J.; Bashkanov, M.; Beck, R.; Biroth, M.; Borisov, N.; Braghieri, A.; Briscoe, W. J.; Cividini, F.; Collicott, C.; Costanza, S. more »

The double-polarization observable E and helicity-dependent cross sections σ_1/2, σ_3/2 have been measured for the photoproduction of π⁰ pairs off quasifree protons and neutrons at the Mainz MAMI accelerator with the Crystal Ball/TAPS setup. A circularly polarized photon beam was produced by bremsstrahlung from longitudinally polarized electrons and impinged on a longitudinally polarized deuterated butanol target. The reaction products were detected with an almost 4π covering calorimeter. The results reveal for the first time the helicity- and isospin-dependent structure of the γN → Nπ⁰π⁰ reaction.They are compared to predictions from reaction models in view of nucleon resonance contributions and also to a refit of one model that predicted results for the proton and for the neutron target. As a result, the comparison of the prediction and the refit demonstrates the large impact of the new data.

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Research Organization:: Kent State Univ., Kent, OH (United States); George Washington Univ., Washington, DC (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Contributing Organization:: A2 Collaboration

Grant/Contract Number:: FG02-99-ER41110; FG02-88ER40415; FG02-01-ER41194; SC0014323; SC0016583

OSTI ID:: 1646688

Alternate ID(s):: OSTI ID: 1646622; OSTI ID: 1726243

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Vol. 125 Journal Issue: 6; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 4 works

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References (46)

Experimental study of the $γ p \to π^{0} π^{0} p$ reaction with the Crystal Ball/TAPS detector system at the Mainz Microtron Kashevarov, V. L.; Fix, A.; Prakhov, S. Physical Review C, Vol. 85, Issue 6 https://doi.org/10.1103/PhysRevC.85.064610	journal	June 2012
Double π0 photoproduction off the proton at threshold Kotulla, M.; Ahrens, J.; Annand, J. R. M. Physics Letters B, Vol. 578, Issue 1-2 https://doi.org/10.1016/j.physletb.2003.10.056	journal	January 2004
Production of <mml:math altimg="si194.gif" display="inline" 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" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:mi>η</mml:mi></mml:math> and <mml:math altimg="si195.gif" display="inline" 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" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msup><mml:mrow><mml:mi>η</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:math> mesons on nucleons and nuclei Krusche, B.; Wilkin, C. Progress in Particle and Nuclear Physics, Vol. 80 https://doi.org/10.1016/j.ppnp.2014.10.001	journal	January 2015
Double $π^{0}$ Photoproduction on the Proton at GRAAL Assafiri, Y.; Bartalini, O.; Bellini, V. Physical Review Letters, Vol. 90, Issue 22 https://doi.org/10.1103/PhysRevLett.90.222001	journal	June 2003
Measurement of the beam-helicity asymmetry I⊙ in the photoproduction of $ \pi^{0}$ $ \pi^{\pm}$ pairs off protons and off neutrons Oberle, M.; Ahrens, J.; Annand, J. R. M. The European Physical Journal A, Vol. 50, Issue 3 https://doi.org/10.1140/epja/i2014-14054-5	journal	March 2014
High statistics study of the reaction γp → pπ0 η Gutz, E.; Crede, V.; Sokhoyan, V. The European Physical Journal A, Vol. 50, Issue 4 https://doi.org/10.1140/epja/i2014-14074-1	journal	April 2014
Helicity-dependent cross sections and double-polarization observable $E$ in $η$ photoproduction from quasifree protons and neutrons Witthauer, L.; Dieterle, M.; Abt, S. Physical Review C, Vol. 95, Issue 5 https://doi.org/10.1103/PhysRevC.95.055201	journal	May 2017
Polarization observables in $π^{0} η$ photoproduction on the proton Fix, A.; Arenhövel, H. Physical Review C, Vol. 83, Issue 1 https://doi.org/10.1103/PhysRevC.83.015503	journal	January 2011
Response of TAPS to monochromatic photons with energies between 45 and 790 MeV 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 https://doi.org/10.1016/0168-9002(94)90701-3	journal	July 1994
Completeness rules for spin observables in pseudoscalar meson photoproduction Chiang, Wen-Tai; Tabakin, Frank Physical Review C, Vol. 55, Issue 4 https://doi.org/10.1103/PhysRevC.55.2054	journal	April 1997
Study of non-strange baryon resonances with meson photoproduction Krusche, B.; Schadmand, S. Progress in Particle and Nuclear Physics, Vol. 51, Issue 2 https://doi.org/10.1016/S0146-6410(03)90005-6	journal	January 2003
The 1.5GeV harmonic double-sided microtron at Mainz University 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 https://doi.org/10.1016/j.nima.2008.05.018	journal	August 2008
Insight into the Narrow Structure in $η$ Photoproduction on the Neutron from Helicity-Dependent Cross Sections Witthauer, L.; Dieterle, M.; Abt, S. Physical Review Letters, Vol. 117, Issue 13 https://doi.org/10.1103/PhysRevLett.117.132502	journal	September 2016
Data on $I^{s}$ and $I^{c}$ in $\vec{γ} p \to p π^{0} π^{0}$ reveal cascade decays of $N (1900)$ via $N (1520) π$ Sokhoyan, V.; Gutz, E.; van Pee, H. Physics Letters B, Vol. 746 https://doi.org/10.1016/j.physletb.2015.04.063	journal	June 2015
Double pion photoproduction on the nucleon: study of the isospin channels Gómez Tejedor, J. A.; Oset, E. Nuclear Physics A, Vol. 600, Issue 4 https://doi.org/10.1016/0375-9474(95)00492-0	journal	April 1996
Photoproduction of neutral pion pairs from the proton Wolf, M.; Ahrens, J.; Beck, R. The European Physical Journal A, Vol. 9, Issue 1 https://doi.org/10.1007/s100500070048	journal	October 2000
Double- π0 photoproduction from the deuteron Kleber, V.; Achenbach, P.; Ahrens, J. The European Physical Journal A, Vol. 9, Issue 1 https://doi.org/10.1007/s100500070047	journal	October 2000
Measurement of the beam-helicity asymmetry <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" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msup><mml:mrow><mml:mi>I</mml:mi></mml:mrow><mml:mrow><mml:mo>⊙</mml:mo></mml:mrow></mml:msup></mml:math> in the photoproduction of <mml:math altimg="si2.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" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:math>-pairs off the proton and off the neutron Oberle, M.; Krusche, B.; Ahrens, J. Physics Letters B, Vol. 721, Issue 4-5 https://doi.org/10.1016/j.physletb.2013.03.021	journal	April 2013
Photoproduction of $π^{0}$ mesons off protons and neutrons in the second and third nucleon resonance regions Dieterle, M.; Werthmüller, D.; Abt, S. Physical Review C, Vol. 97, Issue 6 https://doi.org/10.1103/PhysRevC.97.065205	journal	June 2018
The isospin structure of photoproduction of πη pairs from the nucleon in the threshold region Käser, A.; Ahrens, J.; Annand, J. R. M. Physics Letters B, Vol. 748 https://doi.org/10.1016/j.physletb.2015.07.007	journal	September 2015
Photoproduction of $π^{0}$ Mesons off Neutrons in the Nucleon Resonance Region Dieterle, M.; Keshelashvili, I.; Ahrens, J. Physical Review Letters, Vol. 112, Issue 14 https://doi.org/10.1103/PhysRevLett.112.142001	journal	April 2014
Total cross section measurement for the three double pion photoproduction channels on the proton Braghieri, A.; Murphy, L. Y.; Ahrens, J. Physics Letters B, Vol. 363, Issue 1-2 https://doi.org/10.1016/0370-2693(95)01189-W	journal	November 1995
Experimental study of the $γ p \to π^{0} η p$ reaction with the A2 setup at the Mainz Microtron Sokhoyan, V.; Prakhov, S.; Fix, A. Physical Review C, Vol. 97, Issue 5 https://doi.org/10.1103/PhysRevC.97.055212	journal	May 2018
Review of Particle Physics Tanabashi, M.; Hagiwara, K.; Hikasa, K. Physical Review D, Vol. 98, Issue 3 https://doi.org/10.1103/PhysRevD.98.030001	journal	August 2018
Double-pion photoproduction on nucleon and deuteron Fix, A.; Arenhövel, H. The European Physical Journal A, Vol. 25, Issue 1 https://doi.org/10.1140/epja/i2005-10067-5	journal	July 2005
New results on the Roper resonance and 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:msub><mml:mi>P</mml:mi><mml:mn>11</mml:mn></mml:msub></mml:math> partial wave Sarantsev, A. V.; Fuchs, M.; Kotulla, M. Physics Letters B, Vol. 659, Issue 1-2 https://doi.org/10.1016/j.physletb.2007.11.055	journal	January 2008
<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:msup><mml:mi>N</mml:mi><mml:mo>∗</mml:mo></mml:msup></mml:math> and <mml:math altimg="si2.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:msup><mml:mi mathvariant="normal">Δ</mml:mi><mml:mo>∗</mml:mo></mml:msup></mml:math> decays into <mml:math altimg="si3.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>N</mml:mi><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> Thoma, U.; Fuchs, M.; Anisovich, A. V. Physics Letters B, Vol. 659, Issue 1-2 https://doi.org/10.1016/j.physletb.2007.11.054	journal	January 2008
Photon and Electron Polarization in High-Energy Bremsstrahlung and Pair Production with Screening Olsen, Haakon; Maximon, L. C. Physical Review, Vol. 114, Issue 3 https://doi.org/10.1103/PhysRev.114.887	journal	May 1959
Theory of two-meson photo- and electroproduction off the nucleon Haberzettl, Helmut; Nakayama, Kanzo; Oh, Yongseok Physical Review D, Vol. 99, Issue 5 https://doi.org/10.1103/PhysRevD.99.053001	journal	March 2019
Double <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:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> photoproduction on the neutron at GRAAL Ajaka, J.; Assafiri, Y.; Bartalini, O. Physics Letters B, Vol. 651, Issue 2-3 https://doi.org/10.1016/j.physletb.2007.06.009	journal	July 2007
First measurement of the polarization observable E and helicity-dependent cross sections in single π 0 photoproduction from quasi-free nucleons Dieterle, M.; Witthauer, L.; Cividini, F. Physics Letters B, Vol. 770 https://doi.org/10.1016/j.physletb.2017.04.079	journal	July 2017
Single and double πo-photoproduction from the deuteron Krusche, B.; Ahrens, J.; Beck, R. The European Physical Journal A, Vol. 6, Issue 3 https://doi.org/10.1007/s100500050349	journal	November 1999
Beam-Helicity Asymmetries in Double-Pion Photoproduction off the Proton Krambrich, D.; Zehr, F.; Fix, A. Physical Review Letters, Vol. 103, Issue 5 https://doi.org/10.1103/PhysRevLett.103.052002	journal	July 2009
High-statistics study of the reaction γp → p2π0 Sokhoyan, V.; Gutz, E.; Crede, V. The European Physical Journal A, Vol. 51, Issue 8 https://doi.org/10.1140/epja/i2015-15095-x	journal	August 2015
Photoproduction of mesons off nuclei Krusche, B. The European Physical Journal Special Topics, Vol. 198, Issue 1 https://doi.org/10.1140/epjst/e2011-01491-2	journal	September 2011
Geant4—a simulation toolkit Agostinelli, S.; Allison, J.; Amako, K. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8	journal	July 2003
Upgrade of the Glasgow photon tagging spectrometer for Mainz MAMI-C McGeorge, J. C.; Kellie, J. D.; Annand, J. R. M. The European Physical Journal A, Vol. 37, Issue 1 https://doi.org/10.1140/epja/i2007-10606-0	journal	June 2008
First measurement of helicity-dependent cross sections in π0η photoproduction from quasi-free nucleons Käser, A.; Dieterle, M.; Witthauer, L. Physics Letters B, Vol. 786 https://doi.org/10.1016/j.physletb.2018.10.006	journal	November 2018
Photoproduction of $\eta$ $\pi$ pairs off nucleons and deuterons Käser, A.; Müller, F.; Ahrens, J. The European Physical Journal A, Vol. 52, Issue 9 https://doi.org/10.1140/epja/i2016-16272-1	journal	September 2016
Intermediate resonance excitation in 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>γ</mml:mi><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:mi>p</mml:mi><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> reaction Ahrens, J.; Altieri, S.; Annand, J. R. M. Physics Letters B, Vol. 624, Issue 3-4 https://doi.org/10.1016/j.physletb.2005.08.034	journal	September 2005
Three-Body Nature of $N^{}$ and $Δ^{}$ Resonances from Sequential Decay Chains Thiel, A.; Sokhoyan, V.; Gutz, E. Physical Review Letters, Vol. 114, Issue 9 https://doi.org/10.1103/PhysRevLett.114.091803	journal	March 2015
Photoproduction of π0π0 - and π0π+ -pairs off the proton from threshold to the second resonance region Zehr, F.; Krusche, B.; Aguar, P. The European Physical Journal A, Vol. 48, Issue 7 https://doi.org/10.1140/epja/i2012-12098-1	journal	July 2012
Polarization observables for two-pion production off the nucleon Roberts, W.; Oed, T. Physical Review C, Vol. 71, Issue 5 https://doi.org/10.1103/PhysRevC.71.055201	journal	May 2005
Photoproduction of $ \pi^{0}$ -pairs off protons and off neutrons Dieterle, M.; Oberle, M.; Ahrens, J. The European Physical Journal A, Vol. 51, Issue 11 https://doi.org/10.1140/epja/i2015-15142-8	journal	November 2015
Measurement of $K^{-} \vec{p} η Λ$ near threshold Starostin, A.; Nefkens, B. M. K.; Berger, E. Physical Review C, Vol. 64, Issue 5 https://doi.org/10.1103/PhysRevC.64.055205	journal	October 2001
Two neutral pion photoproduction off the proton between threshold and 800 MeV Härter, F.; Ahrens, J.; Beck, R. Physics Letters B, Vol. 401, Issue 3-4 https://doi.org/10.1016/S0370-2693(97)00423-1	journal	May 1997

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Title: Helicity-Dependent Cross Sections for the Photoproduction of $π^{0}$ Pairs from Nucleons