First study of ηc(1S), η(1760) and X(1835) production via η'π⁺π⁻ final states in two-photon collisions

Zhang, C. C.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Ban, Y.; Belous, K.; Bischofberger, M.; Browder, T. E.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Choi, Y.; Dalseno, J.; Danilov, M.; Eidelman, S.; Feindt, M.; Gaur, V.; Gabyshev, N.; Goh, Y. M.; Han, Y. L.; Hayashii, H.; Horii, Y.; Hou, W.-S.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Iwabuchi, M.; Julius, T.; Kiesling, C.; Kim, H. O.; Kim, M. J.; Kim, Y. J.; Ko, B. R.; Kodyš, P.; Korpar, S.; Krokovny, P.; Kuzmin, A.; Li, J.; Libby, J.; Liu, Y.; Liu, Z. Q.; Louvot, R.; Matvienko, D.; McOnie, S.; Mizuk, R.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Nishida, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlov, P.; Pakhlova, G.; Park, H.; Park, H. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Röhrken, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Santel, D.; Sanuki, T.; Schneider, O.; Schwanda, C.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shen, C. P.; Shibata, T.-A.; Shiu, J.-G.; Shwartz, B.; Smerkol, P.; Sohn, Y.-S.; Solovieva, E.; Stanič, S.; Starič, M.; Sumihama, M.; Sumiyoshi, T.; Tikhomirov, I.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Wang, P.; Wang, X. L.; Watanabe, Y.; Williams, K. M.; Yabsley, B. D.; Yamashita, Y.; Yuan, C. Z.; Zhang, Z. P.; Zhulanov, V.

doi:10.1103/PhysRevD.86.052002

Title: First study of η_c(1S), η(1760) and X(1835) production via η^'π⁺π⁻ final states in two-photon collisions

Abstract

The invariant mass spectrum of the η^'π⁺π⁻ final state produced in two-photon collisions is obtained using a 673 fb⁻¹ data sample collected in the vicinity of the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider. We observe a clear signal of the η_c(1S) and measure its mass and width to be M(η_c(1S))=(2982.7±1.8(stat)±2.2(syst)±0.3(model)) MeV/c² and Γ(η_c(1S))=(37.8^+5.8_–5.3(stat)±2.8(syst)±1.4(model)) MeV/c². The third error is an uncertainty due to possible interference between the η_c(1S) and a nonresonant component. We also report the first evidence for η(1760) decay toη^'π⁺π⁻; we find two solutions for its parameters, depending on the inclusion or not of the X(1835), whose existence is of marginal significance in our data. From a fit to the mass spectrum using coherent X(1835) and η(1760) resonant amplitudes, we set a 90% confidence level upper limit on the product ΓγγB(η^'π⁺π⁻) for the X(1835).

Authors:: Zhang, C. C.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Ban, Y.; Belous, K.; Bischofberger, M.; Browder, T. E.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Choi, Y.; Dalseno, J.; Danilov, M.; Eidelman, S.; Feindt, M.; Gaur, V.; Gabyshev, N. more »« less

Publication Date:: Mon Sep 10 00:00:00 EDT 2012

Sponsoring Org.:: USDOE

OSTI Identifier:: 1103287

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Physical Review. D, Particles, Fields, Gravitation and Cosmology

Additional Journal Information:: Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Volume: 86 Journal Issue: 5; Journal ID: ISSN 1550-7998

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Citation Formats


                    Zhang, C. C., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Ban, Y., Belous, K., Bischofberger, M., Browder, T. E., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Choi, Y., Dalseno, J., Danilov, M., Eidelman, S., Feindt, M., Gaur, V., Gabyshev, N., Goh, Y. M., Han, Y. L., Hayashii, H., Horii, Y., Hou, W.-S., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Iwabuchi, M., Julius, T., Kiesling, C., Kim, H. O., Kim, M. J., Kim, Y. J., Ko, B. R., Kodyš, P., Korpar, S., Krokovny, P., Kuzmin, A., Li, J., Libby, J., Liu, Y., Liu, Z. Q., Louvot, R., Matvienko, D., McOnie, S., Mizuk, R., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Nishida, S., Ohshima, T., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Röhrken, M., Ryu, S., Sahoo, H., Sakai, Y., Santel, D., Sanuki, T., Schneider, O., Schwanda, C., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Smerkol, P., Sohn, Y.-S., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumiyoshi, T., Tikhomirov, I., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Varner, G., Vinokurova, A., Vorobyev, V., Wang, P., Wang, X. L., Watanabe, Y., Williams, K. M., Yabsley, B. D., Yamashita, Y., Yuan, C. Z., Zhang, Z. P., and Zhulanov, V. First study of ηc(1S), η(1760) and X(1835) production via η'π⁺π⁻ final states in two-photon collisions.  United States: N. p., 2012. 
Web.  doi:10.1103/PhysRevD.86.052002.

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                    Zhang, C. C., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Ban, Y., Belous, K., Bischofberger, M., Browder, T. E., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Choi, Y., Dalseno, J., Danilov, M., Eidelman, S., Feindt, M., Gaur, V., Gabyshev, N., Goh, Y. M., Han, Y. L., Hayashii, H., Horii, Y., Hou, W.-S., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Iwabuchi, M., Julius, T., Kiesling, C., Kim, H. O., Kim, M. J., Kim, Y. J., Ko, B. R., Kodyš, P., Korpar, S., Krokovny, P., Kuzmin, A., Li, J., Libby, J., Liu, Y., Liu, Z. Q., Louvot, R., Matvienko, D., McOnie, S., Mizuk, R., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Nishida, S., Ohshima, T., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Röhrken, M., Ryu, S., Sahoo, H., Sakai, Y., Santel, D., Sanuki, T., Schneider, O., Schwanda, C., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Smerkol, P., Sohn, Y.-S., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumiyoshi, T., Tikhomirov, I., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Varner, G., Vinokurova, A., Vorobyev, V., Wang, P., Wang, X. L., Watanabe, Y., Williams, K. M., Yabsley, B. D., Yamashita, Y., Yuan, C. Z., Zhang, Z. P., & Zhulanov, V. First study of ηc(1S), η(1760) and X(1835) production via η'π⁺π⁻ final states in two-photon collisions.  United States.  https://doi.org/10.1103/PhysRevD.86.052002

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                    Zhang, C. C., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Ban, Y., Belous, K., Bischofberger, M., Browder, T. E., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Choi, Y., Dalseno, J., Danilov, M., Eidelman, S., Feindt, M., Gaur, V., Gabyshev, N., Goh, Y. M., Han, Y. L., Hayashii, H., Horii, Y., Hou, W.-S., Hyun, H. J., Iijima, T., Inami, K., Ishikawa, A., Iwabuchi, M., Julius, T., Kiesling, C., Kim, H. O., Kim, M. J., Kim, Y. J., Ko, B. R., Kodyš, P., Korpar, S., Krokovny, P., Kuzmin, A., Li, J., Libby, J., Liu, Y., Liu, Z. Q., Louvot, R., Matvienko, D., McOnie, S., Mizuk, R., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Nishida, S., Ohshima, T., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, H., Park, H. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Röhrken, M., Ryu, S., Sahoo, H., Sakai, Y., Santel, D., Sanuki, T., Schneider, O., Schwanda, C., Sevior, M. E., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Smerkol, P., Sohn, Y.-S., Solovieva, E., Stanič, S., Starič, M., Sumihama, M., Sumiyoshi, T., Tikhomirov, I., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Varner, G., Vinokurova, A., Vorobyev, V., Wang, P., Wang, X. L., Watanabe, Y., Williams, K. M., Yabsley, B. D., Yamashita, Y., Yuan, C. Z., Zhang, Z. P., and Zhulanov, V. Mon .  
"First study of ηc(1S), η(1760) and X(1835) production via η'π⁺π⁻ final states in two-photon collisions".  United States.  https://doi.org/10.1103/PhysRevD.86.052002.

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@article{osti_1103287,

  title        = {First study of ηc(1S), η(1760) and X(1835) production via η'π⁺π⁻ final states in two-photon collisions},

  author       = {Zhang, C. C. and Aihara, H. and Asner, D. M. and Aushev, T. and Bakich, A. M. and Ban, Y. and Belous, K. and Bischofberger, M. and Browder, T. E. and Chen, A. and Cheon, B. G. and Chilikin, K. and Chistov, R. and Choi, Y. and Dalseno, J. and Danilov, M. and Eidelman, S. and Feindt, M. and Gaur, V. and Gabyshev, N. and Goh, Y. M. and Han, Y. L. and Hayashii, H. and Horii, Y. and Hou, W.-S. and Hyun, H. J. and Iijima, T. and Inami, K. and Ishikawa, A. and Iwabuchi, M. and Julius, T. and Kiesling, C. and Kim, H. O. and Kim, M. J. and Kim, Y. J. and Ko, B. R. and Kodyš, P. and Korpar, S. and Krokovny, P. and Kuzmin, A. and Li, J. and Libby, J. and Liu, Y. and Liu, Z. Q. and Louvot, R. and Matvienko, D. and McOnie, S. and Mizuk, R. and Nakano, E. and Nakao, M. and Nakazawa, H. and Natkaniec, Z. and Nishida, S. and Ohshima, T. and Okuno, S. and Olsen, S. L. and Pakhlov, P. and Pakhlova, G. and Park, H. and Park, H. K. and Pestotnik, R. and Petrič, M. and Piilonen, L. E. and Röhrken, M. and Ryu, S. and Sahoo, H. and Sakai, Y. and Santel, D. and Sanuki, T. and Schneider, O. and Schwanda, C. and Sevior, M. E. and Shapkin, M. and Shebalin, V. and Shen, C. P. and Shibata, T.-A. and Shiu, J.-G. and Shwartz, B. and Smerkol, P. and Sohn, Y.-S. and Solovieva, E. and Stanič, S. and Starič, M. and Sumihama, M. and Sumiyoshi, T. and Tikhomirov, I. and Uchida, M. and Uehara, S. and Uglov, T. and Unno, Y. and Uno, S. and Varner, G. and Vinokurova, A. and Vorobyev, V. and Wang, P. and Wang, X. L. and Watanabe, Y. and Williams, K. M. and Yabsley, B. D. and Yamashita, Y. and Yuan, C. Z. and Zhang, Z. P. and Zhulanov, V.},

  abstractNote = {The invariant mass spectrum of the η'π⁺π⁻ final state produced in two-photon collisions is obtained using a 673 fb⁻¹ data sample collected in the vicinity of the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider. We observe a clear signal of the ηc(1S) and measure its mass and width to be M(ηc(1S))=(2982.7±1.8(stat)±2.2(syst)±0.3(model)) MeV/c² and Γ(ηc(1S))=(37.8+5.8–5.3(stat)±2.8(syst)±1.4(model)) MeV/c². The third error is an uncertainty due to possible interference between the ηc(1S) and a nonresonant component. We also report the first evidence for η(1760) decay toη'π⁺π⁻; we find two solutions for its parameters, depending on the inclusion or not of the X(1835), whose existence is of marginal significance in our data. From a fit to the mass spectrum using coherent X(1835) and η(1760) resonant amplitudes, we set a 90% confidence level upper limit on the product ΓγγB(η'π⁺π⁻) for the X(1835).},

  doi          = {10.1103/PhysRevD.86.052002},

  journal      = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},

  number       = 5,

  volume       = 86,

  place        = {United States},

  year         = {Mon Sep 10 00:00:00 EDT 2012},

  month        = {Mon Sep 10 00:00:00 EDT 2012}

}

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Wang, Zhi-Gang; Wan, Shao-Long
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Title: First study of ηc(1S), η(1760) and X(1835) production via η'π⁺π⁻ final states in two-photon collisions

Abstract

Citation Formats

X(1835): Natural candidate of η ′ ’s second radial excitation journal, January 2006

Glueballs, hybrids, multiquarks journal, December 2007

η c -glueball mixing and resonance X(1835) journal, November 2005

Productions of X(1835) as baryonium with sizable gluon content journal, June 2006

Observation of J/ψ radiative decay to pseudoscalar ωω journal, October 1985

Luminosity functions for two-photon processes in e+e− collisions journal, June 1980

Some properties of the newly observed X(1835) state at BES journal, November 2006

Review of Particle Physics journal, July 2010

Measurements of the Mass and Width of the η c Using the Decay ψ ( 3686 ) → γ η c journal, May 2012

Confirmation of the X ( 1835 ) and Observation of the Resonances X ( 2120 ) and X ( 2370 ) in J / ψ → γ π + π − η ′ journal, February 2011

Study of charmonia in four-meson final states produced in two-photon collisions journal, November 2007

Observation of a Resonance X ( 1835 ) in J / ψ → γ π + π − η ′ journal, December 2005

The two-photon particle production mechanism. Physical problems. Applications. Equivalent photon approximation journal, January 1975

Possible 0 − + glueball candidate X ( 1835 ) journal, August 2006

Hadron Spectroscopy — A 2005 Snapshot conference, January 2006

Pseudoscalar production at ω ω threshold in J / ψ → γ ω ω journal, June 2006

Observation of a pp̄ mass threshold enhancement in Ψ′ → π+π− J/Ψ(J/Ψ → γ pp̄) decay journal, April 2010

First observation of three pseudoscalar states in J/ψ→γρρ decay journal, February 1989

Pseudoscalar ωω production at threshold in J/ψ→ψωω decay journal, June 1987

Partial wave analysis of J/ψ→γ(ηπ+π−) journal, January 1999

Heavy quarkonium: progress, puzzles, and opportunities journal, February 2011

X(1835): A Possible Baryonium? journal, August 2006

Observation of a Near-Threshold Enhancement in the p p ¯ Mass Spectrum from Radiative J / ψ → γ p p ¯ Decays journal, July 2003

Analysis of the 33-133-133-1final state in photon-photon collisions journal, March 1992

Gluonic mesons in $J/\psi$ radiative decay journal, February 1998

High-energy-physics event generation with PYTHIA 5.7 and JETSET 7.4 journal, August 1994

X(1835) as a baryonium state with QCD sum rules journal, January 2007

Measurement of the ηc and Mesons in Two-photon Process at Belle journal, November 2008

Overview of the KEKB accelerators journal, February 2003

Study of the radiative decay J/ψ→γρρ journal, March 1986

The Belle detector journal, February 2002

Measurement of η η production in two-photon collisions journal, December 2010

Title: First study of η_c(1S), η(1760) and X(1835) production via η^'π⁺π⁻ final states in two-photon collisions

X(1835): Natural candidate of $η^{'}$ ’s second radial excitation
journal, January 2006

Glueballs, hybrids, multiquarks
journal, December 2007

$η_{c}$ -glueball mixing and resonance X(1835)
journal, November 2005

Productions of X(1835) as baryonium with sizable gluon content
journal, June 2006

Observation of J/ψ radiative decay to pseudoscalar ωω
journal, October 1985

Luminosity functions for two-photon processes in e+e− collisions
journal, June 1980

Some properties of the newly observed X(1835) state at BES
journal, November 2006

Review of Particle Physics
journal, July 2010

Measurements of the Mass and Width of the $η_{c}$ Using the Decay $ψ (3686) \to γ η_{c}$
journal, May 2012

Confirmation of the $X (1835)$ and Observation of the Resonances $X (2120)$ and $X (2370)$ in $J / ψ \to γ π^{+} π^{-} η^{'}$
journal, February 2011

Study of charmonia in four-meson final states produced in two-photon collisions
journal, November 2007

Observation of a Resonance $X (1835)$ in $J / ψ \to γ π^{+} π^{-} η^{'}$
journal, December 2005

The two-photon particle production mechanism. Physical problems. Applications. Equivalent photon approximation
journal, January 1975

Possible $0^{- +}$ glueball candidate $X (1835)$
journal, August 2006

Hadron Spectroscopy — A 2005 Snapshot
conference, January 2006

Pseudoscalar production at $ω ω$ threshold in $J / ψ \to γ ω ω$
journal, June 2006

Observation of a p^p̄ mass threshold enhancement in Ψ′ → π⁺π⁻ J/Ψ(J/Ψ → γ p^p̄) decay
journal, April 2010

First observation of three pseudoscalar states in J/ψ→γρρ decay
journal, February 1989

Pseudoscalar ωω production at threshold in J/ψ→ψωω decay
journal, June 1987

Partial wave analysis of J/ψ→γ(ηπ+π−)
journal, January 1999

Heavy quarkonium: progress, puzzles, and opportunities
journal, February 2011

X(1835): A Possible Baryonium?
journal, August 2006

Observation of a Near-Threshold Enhancement in the $p \bar{p}$ Mass Spectrum from Radiative $J / ψ \to γ p \bar{p}$ Decays
journal, July 2003

Analysis of the 33-133-133-1final state in photon-photon collisions
journal, March 1992

Gluonic mesons in $J/\psi$ radiative decay
journal, February 1998

High-energy-physics event generation with PYTHIA 5.7 and JETSET 7.4
journal, August 1994

X(1835) as a baryonium state with QCD sum rules
journal, January 2007

Measurement of the ηc and Mesons in Two-photon Process at Belle
journal, November 2008

Overview of the KEKB accelerators
journal, February 2003

Study of the radiative decay J/ψ→γρρ
journal, March 1986

The Belle detector
journal, February 2002

Measurement of $η η$ production in two-photon collisions
journal, December 2010