Measurement of the γγ → π+π- and γγ → K+K- processes at energies of 2.4-4.1 GeV

H. Nakazawa; S. Uehara; K. Abe; K. Abe; H. Aihara; M. Akatsu; Y. Asano; V. Aulchenko; T. Aushev; S. Bahinipati; A. M. Bakich; Y. Ban; S. Banerjee; I. Bedny; U. Bitenc; I. Bizjak; S. Blyth; A. Bondar; A. Bozek; M. Bračko; J. Brodzicka; A. Chen; B. G. Cheon; R. Chistov; Y. Choi; Y. K. Choi; A. Chuvikov; J. Dalseno; M. Danilov; M. Dash; A. Drutskoy; S. Eidelman; Y. Enari; D. Epifanov; S. Fratina; N. Gabyshev; A. Garmash; T. Gershon; G. Gokhroo; K. Hayasaka; H. Hayashii; Y. Hoshi; S. Hou; W. S. Hou; T. Iijima; A. Imoto; K. Inami; A. Ishikawa; R. Itoh; M. Iwasaki; Y. Iwasaki; J. H. Kang; J. S. Kang; S. U. Kataoka; N. Katayama; H. Kawai; T. Kawasaki; H. R. Khan; H. Kichimi; H. J. Kim; J. H. Kim; S. K. Kim; S. M. Kim; S. Korpar; P. Križan; P. Krokovny; R. Kulasiri; C. C. Kuo; A. Kuzmin; Y. J. Kwon; G. Leder; S. E. Lee; T. Lesiak; J. Li; S. W. Lin; D. Liventsev; G. Majumder; F. Mandl; T. Matsumoto; A. Matyja; W. Mitaroff; H. Miyake; H. Miyata; R. Mizuk; D. Mohapatra; T. Mori; T. Nagamine; Y. Nagasaka; E. Nakano; M. Nakao; Z. Natkaniec; S. Nishida; O. Nitoh; T. Nozaki; S. Ogawa; T. Ohshima; T. Okabe; S. Okuno; S. L. Olsen; W. Ostrowicz; P. Pakhlov; H. Palka; C. W. Park; H. Park; N. Parslow; L. S. Peak; R. Pestotnik; L. E. Piilonen; H. Sagawa; Y. Sakai; N. Sato; T. Schietinger; O. Schneider; J. Schümann; K. Senyo; H. Shibuya; B. Shwartz; J. B. Singh; A. Somov; N. Soni; R. Stamen; S. Stanič; M. Starič; K. Sumisawa; T. Sumiyoshi; S. Y. Suzuki; O. Tajima; F. Takasaki; N. Tamura; M. Tanaka; Y. Teramoto; X. C. Tian; T. Tsuboyama; T. Tsukamoto; T. Uglov; S. Uno; G. Varner; S. Villa; C. C. Wang; C. H. Wang; M. Watanabe; Y. Watanabe; B. D. Yabsley; A. Yamaguchi; Y. Yamashita; M. Yamauchi; J. Ying; Y. Yusa; L. M. Zhang; Z. P. Zhang; V. Zhilich; D. Žontar

doi:10.1016/j.physletb.2005.03.067

Measurement of the γγ → π⁺π^- and γγ → K⁺K^- processes at energies of 2.4-4.1 GeV

H. Nakazawa, S. Uehara, K. Abe, K. Abe, H. Aihara, M. Akatsu, Y. Asano, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, Y. Ban, S. Banerjee, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. BračkoJ. Brodzicka, A. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, A. Chuvikov, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, Y. Enari, D. Epifanov, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, K. Hayasaka, H. Hayashii, Y. Hoshi, S. Hou, W. S. Hou, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, J. S. Kang, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, J. H. Kim, S. K. Kim, S. M. Kim, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, C. C. Kuo, A. Kuzmin, Y. J. Kwon, G. Leder, S. E. Lee, T. Lesiak, J. Li, S. W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, W. Mitaroff, H. Miyake, H. Miyata, R. Mizuk, D. Mohapatra, T. Mori, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, P. Pakhlov, H. Palka, C. W. Park, H. Park, N. Parslow, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sagawa, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, J. Schümann, K. Senyo, H. Shibuya, B. Shwartz, J. B. Singh, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, S. Y. Suzuki, O. Tajima, F. Takasaki, N. Tamura, M. Tanaka, Y. Teramoto, X. C. Tian, T. Tsuboyama, T. Tsukamoto, T. Uglov, S. Uno, G. Varner, S. Villa, C. C. Wang, C. H. Wang, M. Watanabe, Y. Watanabe, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, Y. Yusa, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Žontar

Research output: Contribution to journal › Article › peer-review

64 Scopus citations

Abstract

We have measured π⁺π^- and K⁺K ^- production in two-photon collisions using 87.7fb^-1 of data collected with the Belle detector at the asymmetric energy e ⁺e^- collider KEKB. The cross sections are measured to high precision in the two-photon center-of-mass energy (W) range between 2.4GeV<W<4.1GeV and angular region |cosθ*|<0.6. The cross section ratio σ(γγ→K⁺K^-)/ σ(γγ→π⁺π^-) is measured to be 0.89±0.04(stat.)±0.15(syst.) in the range of 3.0GeV<W<4. 1GeV, where the ratio is energy-independent. We observe a sin ^-4θ* behavior of the cross section in the same W range. Production of χ_c0 and χ_c2 mesons is observed in both γγ→π⁺π^- and γγ→K⁺K^- modes.

Original language	English
Pages (from-to)	39-49
Number of pages	11
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	615
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2005.03.067
State	Published - 26 May 2005

Keywords

Charmonium
Mesons
QCD
Two-photon collisions

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10.1016/j.physletb.2005.03.067

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Nakazawa, H., Uehara, S., Abe, K., Abe, K., Aihara, H., Akatsu, M., Asano, Y., Aulchenko, V., Aushev, T., Bahinipati, S., Bakich, A. M., Ban, Y., Banerjee, S., Bedny, I., Bitenc, U., Bizjak, I., Blyth, S., Bondar, A., Bozek, A., ... Žontar, D. (2005). Measurement of the γγ → π⁺π^- and γγ → K⁺K^- processes at energies of 2.4-4.1 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 615(1-2), 39-49. https://doi.org/10.1016/j.physletb.2005.03.067

@article{8e0a280629ca4c878b9972aa2f9b1fa3,

title = "Measurement of the γγ → π+π- and γγ → K+K- processes at energies of 2.4-4.1 GeV",

abstract = "We have measured π+π- and K+K - production in two-photon collisions using 87.7fb-1 of data collected with the Belle detector at the asymmetric energy e +e- collider KEKB. The cross sections are measured to high precision in the two-photon center-of-mass energy (W) range between 2.4GeV+K-)/ σ(γγ→π+π-) is measured to be 0.89±0.04(stat.)±0.15(syst.) in the range of 3.0GeV-4θ* behavior of the cross section in the same W range. Production of χc0 and χc2 mesons is observed in both γγ→π+π- and γγ→K+K- modes.",

keywords = "Charmonium, Mesons, QCD, Two-photon collisions",

author = "H. Nakazawa and S. Uehara and K. Abe and K. Abe and H. Aihara and M. Akatsu and Y. Asano and V. Aulchenko and T. Aushev and S. Bahinipati and Bakich, {A. M.} and Y. Ban and S. Banerjee and I. Bedny and U. Bitenc and I. Bizjak and S. Blyth and A. Bondar and A. Bozek and M. Bra{\v c}ko and J. Brodzicka and A. Chen and Cheon, {B. G.} and R. Chistov and Y. Choi and Choi, {Y. K.} and A. Chuvikov and J. Dalseno and M. Danilov and M. Dash and A. Drutskoy and S. Eidelman and Y. Enari and D. Epifanov and S. Fratina and N. Gabyshev and A. Garmash and T. Gershon and G. Gokhroo and K. Hayasaka and H. Hayashii and Y. Hoshi and S. Hou and Hou, {W. S.} and T. Iijima and A. Imoto and K. Inami and A. Ishikawa and R. Itoh and M. Iwasaki and Y. Iwasaki and Kang, {J. H.} and Kang, {J. S.} and Kataoka, {S. U.} and N. Katayama and H. Kawai and T. Kawasaki and Khan, {H. R.} and H. Kichimi and Kim, {H. J.} and Kim, {J. H.} and Kim, {S. K.} and Kim, {S. M.} and S. Korpar and P. Kri{\v z}an and P. Krokovny and R. Kulasiri and Kuo, {C. C.} and A. Kuzmin and Kwon, {Y. J.} and G. Leder and Lee, {S. E.} and T. Lesiak and J. Li and Lin, {S. W.} and D. Liventsev and G. Majumder and F. Mandl and T. Matsumoto and A. Matyja and W. Mitaroff and H. Miyake and H. Miyata and R. Mizuk and D. Mohapatra and T. Mori and T. Nagamine and Y. Nagasaka and E. Nakano and M. Nakao and Z. Natkaniec and S. Nishida and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and T. Okabe and S. Okuno and Olsen, {S. L.} and W. Ostrowicz and P. Pakhlov and H. Palka and Park, {C. W.} and H. Park and N. Parslow and Peak, {L. S.} and R. Pestotnik and Piilonen, {L. E.} and H. Sagawa and Y. Sakai and N. Sato and T. Schietinger and O. Schneider and J. Sch{\"u}mann and K. Senyo and H. Shibuya and B. Shwartz and Singh, {J. B.} and A. Somov and N. Soni and R. Stamen and S. Stani{\v c} and M. Stari{\v c} and K. Sumisawa and T. Sumiyoshi and Suzuki, {S. Y.} and O. Tajima and F. Takasaki and N. Tamura and M. Tanaka and Y. Teramoto and Tian, {X. C.} and T. Tsuboyama and T. Tsukamoto and T. Uglov and S. Uno and G. Varner and S. Villa and Wang, {C. C.} and Wang, {C. H.} and M. Watanabe and Y. Watanabe and Yabsley, {B. D.} and A. Yamaguchi and Y. Yamashita and M. Yamauchi and J. Ying and Y. Yusa and Zhang, {L. M.} and Zhang, {Z. P.} and V. Zhilich and D. {\v Z}ontar",

year = "2005",

month = may,

day = "26",

doi = "10.1016/j.physletb.2005.03.067",

language = "English",

volume = "615",

pages = "39--49",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Nakazawa, H, Uehara, S, Abe, K, Abe, K, Aihara, H, Akatsu, M, Asano, Y, Aulchenko, V, Aushev, T, Bahinipati, S, Bakich, AM, Ban, Y, Banerjee, S, Bedny, I, Bitenc, U, Bizjak, I, Blyth, S, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Chen, A, Cheon, BG, Chistov, R, Choi, Y, Choi, YK, Chuvikov, A, Dalseno, J, Danilov, M, Dash, M, Drutskoy, A, Eidelman, S, Enari, Y, Epifanov, D, Fratina, S, Gabyshev, N, Garmash, A, Gershon, T, Gokhroo, G, Hayasaka, K, Hayashii, H, Hoshi, Y, Hou, S, Hou, WS, Iijima, T, Imoto, A, Inami, K, Ishikawa, A, Itoh, R, Iwasaki, M, Iwasaki, Y, Kang, JH, Kang, JS, Kataoka, SU, Katayama, N, Kawai, H, Kawasaki, T, Khan, HR, Kichimi, H, Kim, HJ, Kim, JH, Kim, SK, Kim, SM, Korpar, S, Križan, P, Krokovny, P, Kulasiri, R, Kuo, CC, Kuzmin, A, Kwon, YJ, Leder, G, Lee, SE, Lesiak, T, Li, J, Lin, SW, Liventsev, D, Majumder, G, Mandl, F, Matsumoto, T, Matyja, A, Mitaroff, W, Miyake, H, Miyata, H, Mizuk, R, Mohapatra, D, Mori, T, Nagamine, T, Nagasaka, Y, Nakano, E, Nakao, M, Natkaniec, Z, Nishida, S, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okabe, T, Okuno, S, Olsen, SL, Ostrowicz, W, Pakhlov, P, Palka, H, Park, CW, Park, H, Parslow, N, Peak, LS, Pestotnik, R, Piilonen, LE, Sagawa, H, Sakai, Y, Sato, N, Schietinger, T, Schneider, O, Schümann, J, Senyo, K, Shibuya, H, Shwartz, B, Singh, JB, Somov, A, Soni, N, Stamen, R, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Suzuki, SY, Tajima, O, Takasaki, F, Tamura, N, Tanaka, M, Teramoto, Y, Tian, XC, Tsuboyama, T, Tsukamoto, T, Uglov, T, Uno, S, Varner, G, Villa, S, Wang, CC, Wang, CH, Watanabe, M, Watanabe, Y, Yabsley, BD, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Ying, J, Yusa, Y, Zhang, LM, Zhang, ZP, Zhilich, V & Žontar, D 2005, 'Measurement of the γγ → π⁺π^- and γγ → K⁺K^- processes at energies of 2.4-4.1 GeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 615, no. 1-2, pp. 39-49. https://doi.org/10.1016/j.physletb.2005.03.067

TY - JOUR

T1 - Measurement of the γγ → π+π- and γγ → K+K- processes at energies of 2.4-4.1 GeV

AU - Nakazawa, H.

AU - Uehara, S.

AU - Abe, K.

AU - Aihara, H.

AU - Akatsu, M.

AU - Asano, Y.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Ban, Y.

AU - Banerjee, S.

AU - Bedny, I.

AU - Bitenc, U.

AU - Bizjak, I.

AU - Blyth, S.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, Y.

AU - Choi, Y. K.

AU - Chuvikov, A.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, M.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Enari, Y.

AU - Epifanov, D.

AU - Fratina, S.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hoshi, Y.

AU - Hou, S.

AU - Hou, W. S.

AU - Iijima, T.

AU - Imoto, A.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Kataoka, S. U.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Khan, H. R.

AU - Kichimi, H.

AU - Kim, H. J.

AU - Kim, J. H.

AU - Kim, S. K.

AU - Kim, S. M.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kuo, C. C.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Leder, G.

AU - Lee, S. E.

AU - Lesiak, T.

AU - Li, J.

AU - Lin, S. W.

AU - Liventsev, D.

AU - Majumder, G.

AU - Mandl, F.

AU - Matsumoto, T.

AU - Matyja, A.

AU - Mitaroff, W.

AU - Miyake, H.

AU - Miyata, H.

AU - Mizuk, R.

AU - Mohapatra, D.

AU - Mori, T.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ostrowicz, W.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, C. W.

AU - Park, H.

AU - Parslow, N.

AU - Peak, L. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sagawa, H.

AU - Sakai, Y.

AU - Sato, N.

AU - Schietinger, T.

AU - Schneider, O.

AU - Schümann, J.

AU - Senyo, K.

AU - Shibuya, H.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Somov, A.

AU - Soni, N.

AU - Stamen, R.

AU - Stanič, S.

AU - Starič, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Suzuki, S. Y.

AU - Tajima, O.

AU - Takasaki, F.

AU - Tamura, N.

AU - Tanaka, M.

AU - Teramoto, Y.

AU - Tian, X. C.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uglov, T.

AU - Uno, S.

AU - Varner, G.

AU - Villa, S.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Yabsley, B. D.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Ying, J.

AU - Yusa, Y.

AU - Zhang, L. M.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Žontar, D.

PY - 2005/5/26

Y1 - 2005/5/26

N2 - We have measured π+π- and K+K - production in two-photon collisions using 87.7fb-1 of data collected with the Belle detector at the asymmetric energy e +e- collider KEKB. The cross sections are measured to high precision in the two-photon center-of-mass energy (W) range between 2.4GeV+K-)/ σ(γγ→π+π-) is measured to be 0.89±0.04(stat.)±0.15(syst.) in the range of 3.0GeV-4θ* behavior of the cross section in the same W range. Production of χc0 and χc2 mesons is observed in both γγ→π+π- and γγ→K+K- modes.

AB - We have measured π+π- and K+K - production in two-photon collisions using 87.7fb-1 of data collected with the Belle detector at the asymmetric energy e +e- collider KEKB. The cross sections are measured to high precision in the two-photon center-of-mass energy (W) range between 2.4GeV+K-)/ σ(γγ→π+π-) is measured to be 0.89±0.04(stat.)±0.15(syst.) in the range of 3.0GeV-4θ* behavior of the cross section in the same W range. Production of χc0 and χc2 mesons is observed in both γγ→π+π- and γγ→K+K- modes.

KW - Charmonium

KW - Mesons

KW - QCD

KW - Two-photon collisions

UR - http://www.scopus.com/inward/record.url?scp=19944399794&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2005.03.067

DO - 10.1016/j.physletb.2005.03.067

M3 - Article

AN - SCOPUS:19944399794

SN - 0370-2693

VL - 615

SP - 39

EP - 49

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Measurement of the γγ → π⁺π^- and γγ → K⁺K^- processes at energies of 2.4-4.1 GeV

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