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Pregled bibliografske jedinice broj: 386897

Measurement of the invariant-mass spectrum for the two photons from the eta--->pi0 gamma gamma decay

Prakhov, S.; Nefkens, B. M. K.; Allgower, C. E.; Bekrenev, V.; Briscoe, W. J.; Comfort, J. R.; Craig, K.; Grosnick, D.; Isenhower, D.; Knecht, N. et al.
Measurement of the invariant-mass spectrum for the two photons from the eta--->pi0 gamma gamma decay // Physical Review C, 78 (2008), 1; 015206-1 doi:10.1103/PhysRevC.78.015206 (međunarodna recenzija, članak, znanstveni)

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Naslov
Measurement of the invariant-mass spectrum for the two photons from the eta--->pi0 gamma gamma decay

Autori
Prakhov, S. ; Nefkens, B. M. K. ; Allgower, C. E. ; Bekrenev, V. ; Briscoe, W. J. ; Comfort, J. R. ; Craig, K. ; Grosnick, D. ; Isenhower, D. ; Knecht, N. ; Koetke, D. ; Koulbardis, A. ; Kozlenko, N. G. ; . Kruglov, S. ; Lolos, G. ; Lopatin, I. ; Manley, D. M. ; Manweiler, R. ; Marušić, Aljoša ; McDonald, S. ; Olmsted, J. ; Papandreou, Z. ; Peaslee, D. ; Phaisangittisakul, N. ; Price, J. W. ; Ramirez, A. F. ; Sadler, M. ; Shafi, A. ; Spinka, H. ; Stanislaus, T. D. S. ; Starostin, A. ; Staudenmaier, H. M. ; Supek, Ivan

Izvornik
Physical Review C (0556-2813) 78 (2008), 1; 015206-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
invariant mass spectrum; eta

Sažetak
New results on the rare, doubly radiative decay eta -->pi0 gama gamma have been obtained from a revised analysis of the Crystal Ball experiment performed at the AGS. The analysis yields the first information on the dependence of the decay width, Gamma (eta-->pi0 gamma gamma), on the two-photon invariant mass squared, m2(gamma gamma). A re-evaluation of the branching ratio is also made, BR(eta-->pi0 gamma gamma= (2.21± 0.24stat± 0.47syst)×10-4 ; it implies that the decay width is Gamma(eta-->pi0 gamma gamma) =0.285± 0.031stat± 0.061syst eV. These results are close to predictions based on chiral perturbation theory with vector-meson dominance.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Projekti:
098-0982887-2888 - Hadronska fizika i QCD (Supek, Ivan, MZOS ) ( CroRIS)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Aljoša Marušić (autor)

Avatar Url Ivan Supek (autor)

Poveznice na cjeloviti tekst rada:

doi link.aps.org

Citiraj ovu publikaciju:

Prakhov, S.; Nefkens, B. M. K.; Allgower, C. E.; Bekrenev, V.; Briscoe, W. J.; Comfort, J. R.; Craig, K.; Grosnick, D.; Isenhower, D.; Knecht, N. et al.
Measurement of the invariant-mass spectrum for the two photons from the eta--->pi0 gamma gamma decay // Physical Review C, 78 (2008), 1; 015206-1 doi:10.1103/PhysRevC.78.015206 (međunarodna recenzija, članak, znanstveni)
Prakhov, S., Nefkens, B., Allgower, C., Bekrenev, V., Briscoe, W., Comfort, J., Craig, K., Grosnick, D., Isenhower, D. & Knecht, N. (2008) Measurement of the invariant-mass spectrum for the two photons from the eta--->pi0 gamma gamma decay. Physical Review C, 78 (1), 015206-1 doi:10.1103/PhysRevC.78.015206.
@article{article, author = {Prakhov, S. and Nefkens, B. M. K. and Allgower, C. E. and Bekrenev, V. and Briscoe, W. J. and Comfort, J. R. and Craig, K. and Grosnick, D. and Isenhower, D. and Knecht, N. and Koetke, D. and Koulbardis, A. and Kozlenko, N. G. and . Kruglov, S. and Lolos, G. and Lopatin, I. and Manley, D. M. and Manweiler, R. and Maru\v{s}i\'{c}, Aljo\v{s}a and McDonald, S. and Olmsted, J. and Papandreou, Z. and Peaslee, D. and Phaisangittisakul, N. and Price, J. W. and Ramirez, A. F. and Sadler, M. and Shafi, A. and Spinka, H. and Stanislaus, T. D. S. and Starostin, A. and Staudenmaier, H. M. and Supek, Ivan}, year = {2008}, pages = {015206-1-015206-10}, DOI = {10.1103/PhysRevC.78.015206}, keywords = {invariant mass spectrum, eta}, journal = {Physical Review C}, doi = {10.1103/PhysRevC.78.015206}, volume = {78}, number = {1}, issn = {0556-2813}, title = {Measurement of the invariant-mass spectrum for the two photons from the eta--->pi0 gamma gamma decay}, keyword = {invariant mass spectrum, eta} }
@article{article, author = {Prakhov, S. and Nefkens, B. M. K. and Allgower, C. E. and Bekrenev, V. and Briscoe, W. J. and Comfort, J. R. and Craig, K. and Grosnick, D. and Isenhower, D. and Knecht, N. and Koetke, D. and Koulbardis, A. and Kozlenko, N. G. and . Kruglov, S. and Lolos, G. and Lopatin, I. and Manley, D. M. and Manweiler, R. and Maru\v{s}i\'{c}, Aljo\v{s}a and McDonald, S. and Olmsted, J. and Papandreou, Z. and Peaslee, D. and Phaisangittisakul, N. and Price, J. W. and Ramirez, A. F. and Sadler, M. and Shafi, A. and Spinka, H. and Stanislaus, T. D. S. and Starostin, A. and Staudenmaier, H. M. and Supek, Ivan}, year = {2008}, pages = {015206-1-015206-10}, DOI = {10.1103/PhysRevC.78.015206}, keywords = {invariant mass spectrum, eta}, journal = {Physical Review C}, doi = {10.1103/PhysRevC.78.015206}, volume = {78}, number = {1}, issn = {0556-2813}, title = {Measurement of the invariant-mass spectrum for the two photons from the eta--->pi0 gamma gamma decay}, keyword = {invariant mass spectrum, eta} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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