Observation of New Resonant Structures in γγ → ωφ, φφ, and ωω

被引：9

作者：

Liu, Z. Q. ^{[1
]}

Shen, C. P. ^{[31
]}

Yuan, C. Z. ^{[1
]}

Iijima, T. ^{[31
,32
]}

Adachi, I. ^{[11
]}

Aihara, H. ^{[54
]}

Asner, D. M. ^{[42
]}

Aulchenko, V. ^{[3
,4
]}

Aushev, T. ^{[18
]}

Bakich, A. M. ^{[48
]}

Belous, K. ^{[16
]}

Bhardwaj, V. ^{[36
]}

Bhuyan, B. ^{[13
]}

Bischofberger, M. ^{[36
]}

Bondar, A. ^{[3
,4
]}

Bozek, A. ^{[37
]}

Bracko, M. ^{[19
,28
]}

Browder, T. E. ^{[10
]}

Chang, M. -C. ^{[6
]}

Chang, P. ^{[36
]}

Chen, A. ^{[34
]}

Chen, P. ^{[36
]}

Cheon, B. G. ^{[9
]}

Chistov, R. ^{[18
]}

Cho, I. -S. ^{[60
]}

Cho, K. ^{[22
]}

Choi, S. -K. ^{[8
]}

Choi, Y. ^{[47
]}

Dalseno, J. ^{[29
,50
]}

Dolezal, Z. ^{[5
]}

Drasal, Z. ^{[5
]}

Eidelman, S. ^{[3
,4
]}

Epifanov, D. ^{[3
,4
]}

Fast, J. E. ^{[42
]}

Gaur, V. ^{[49
]}

Gabyshev, N. ^{[3
,4
]}

Garmash, A. ^{[3
,4
]}

Goh, Y. M. ^{[9
]}

Haba, J. ^{[11
]}

Hayasaka, K. ^{[32
]}

Hayashii, H. ^{[33
]}

Horii, Y. ^{[32
]}

Hoshi, Y. ^{[52
]}

Hou, W. -S. ^{[36
]}

Hsiung, Y. B. ^{[36
]}

Hyun, H. J. ^{[24
]}

Inami, K. ^{[31
]}

Ishikawa, A. ^{[53
]}

Itoh, R. ^{[11
]}

Iwabuchi, M. ^{[60
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[2] Univ Bonn, Bonn, Germany

[3] Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia

[4] Novosibirsk State Univ, Novosibirsk 630090, Russia

[5] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[6] Fu Jen Catholic Univ, Dept Phys, Taipei, Taiwan

[7] Univ Giessen, Giessen, Germany

[8] Gyeongsang Natl Univ, Chinju, South Korea

[9] Hanyang Univ, Seoul 133791, South Korea

[10] Univ Hawaii, Honolulu, HI 96822 USA

[11] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan

[12] Hiroshima Inst Technol, Hiroshima, Japan

[13] Indian Inst Technol Guwahati, Gauhati, India

[14] Indian Inst Technol, Madras 600036, Tamil Nadu, India

[15] Inst High Energy Phys, Vienna, Austria

[16] Inst High Energy Phys, Protvino, Russia

[17] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

[18] Inst Theoret & Expt Phys, Moscow, Russia

[19] J Stefan Inst, Ljubljana, Slovenia

[20] Kanagawa Univ, Yokohama, Kanagawa, Japan

[21] Karlsruher Inst Technol, Inst Expt Kernphys, Karlsruhe, Germany

[22] Korea Inst Sci & Technol Informat, Taejon, South Korea

[23] Korea Univ, Seoul, South Korea

[24] Kyungpook Natl Univ, Taegu 702701, South Korea

[25] Ecole Polytech Fed Lausanne, Lausanne, Switzerland

[26] Univ Ljubljana, Fac Math & Phys, Ljubljana, Slovenia

[27] Luther Coll, Decorah, IA 52101 USA

[28] Univ Maribor, SLO-2000 Maribor, Slovenia

[29] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[30] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia

[31] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648601, Japan

[32] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648601, Japan

[33] Nara Womens Univ, Nara 630, Japan

[34] Natl Cent Univ, Chungli 32054, Taiwan

[35] Natl United Univ, Miaoli, Taiwan

[36] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan

[37] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[38] Nippon Dent Univ, Niigata, Japan

[39] Niigata Univ, Niigata, Japan

[40] Univ Nova Gorica, Nova Gorica, Slovenia

[41] Osaka City Univ, Osaka 558, Japan

[42] Pacific NW Natl Lab, Richland, WA 99352 USA

[43] Osaka Univ, Nucl Phys Res Ctr, Osaka, Japan

[44] RIKEN BNL Res Ctr, Upton, NY 11973 USA

[45] Univ Sci & Technol China, Hefei 230026, Peoples R China

[46] Seoul Natl Univ, Seoul, South Korea

[47] Sungkyunkwan Univ, Suwon, South Korea

[48] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

[49] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India

[50] Tech Univ Munich, D-8046 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 23期

关键词：

MULTIQUARK HADRONS; Q2QBAR2; MESONS; GAMMA-GAMMA->RHO+RHO; COLLISIONS; BELLE; ENERGIES; DETECTOR; STATES;

D O I：

10.1103/PhysRevLett.108.232001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The processes gamma gamma -> omega phi,phi phi, and omega omega are measured using an 870 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Production of vector meson pairs is clearly observed and their cross sections are measured for masses that range from threshold to 4.0 GeV. In addition to signals from well established spin-zero and spin-two charmonium states, there are resonant structures below charmonium threshold, which have not been previously observed. We report a spin-parity analysis for the new structures and determine the products of the eta(c), chi(c0), and chi(c2) two-photon decay widths and branching fractions to omega phi,phi phi, and omega omega.

引用

页数：7

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