First observation of γγ→pp¯K+K- and search for exotic baryons in pK systems

Shen, C. P.; Yuan, C. Z.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bakich, A. M.; Barberio, E.; Behera, P.; Bhardwaj, V.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bonvicini, G.; Bozek, A.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chang, P.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Dalseno, J.; Danilov, M.; Dash, N.; Doležal, Z.; Drásal, Z.; Dutta, D.; Eidelman, S.; Fang, W. X.; Fast, J. E.; Ferber, T.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Garmash, A.; Gillard, R.; Glattauer, R.; Goldenzweig, P.; Grzymkowska, O.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hou, W. -S.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Jaegle, I.; Jeon, H. B.; Joo, K. K.; Julius, T.; Kang, K. H.; Kato, E.; Kiesling, C.; Kim, D. Y.; Kim, J. B.; Kim, K. T.; Kim, S. H.; Kim, Y. J.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Krokovny, P.; Kuzmin, A.; Kwon, Y. -J.; Lange, J. S.; Li, C. H.; Li, H.; Li, L.; Li, Y.; Li Gioi, L.; Libby, J.; Liventsev, D.; Lubej, M.; Luo, T.; Masuda, M.; Matsuda, T.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Mohanty, S.; Moll, A.; Moon, H. K.; Mussa, R.; Nakano, E.; Nakao, M.; Nanut, T.; Nath, K. J.; Natkaniec, Z.; Nishida, S.; Ogawa, S.; Olsen, S. L.; Ostrowicz, W.; Pakhlov, P.; Pakhlova, G.; Pal, B.; Park, C. -S.; Park, H.; Pesántez, L.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Pulvermacher, C.; Rauch, J.; Ritter, M.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schlüter, T.; Schneider, O.; Schnell, G.; Schwanda, C.; Seino, Y.; Semmler, D.; Senyo, K.; Seong, I. S.; Sevior, M. E.; Shibata, T. -A.; Shiu, J. -G.; Shwartz, B.; Simon, F.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Strube, J. F.; Stypula, J.; Sumihama, M.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Van Hulse, C.; Varner, G.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamaoka, J.; Yelton, J.; Yook, Y.; Yusa, Y.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.; Zupanc, A.

doi:10.1103/PhysRevD.93.112017

Title: First observation of $γ γ \to p \bar{p} K^{+} K^{-}$ and search for exotic baryons in $p K$ systems

Abstract

The process $γ γ \to p \bar{p} K^{+} K^{-}$ and its intermediate processes are measured for the first time using a $980 {fb}^{- 1}$ data sample collected with the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider. The production of $p \bar{p} K^{+} K^{-}$ and a $Λ (1520)^{0}$ $(\bar{Λ} (1520)^{0})$ signal in the $p K^{-}$ ( $\bar{p} K^{+}$ ) invariant mass spectrum are clearly observed. However, no evidence for an exotic baryon near $1540 MeV / c^{2}$ , denoted as $Θ (1540)^{0}$ ( $\bar{Θ} (1540)^{0}$ ) or $Θ (1540)^{+ +}$ ( $Θ (1540)^{- --}$ ), is seen in the $p K^{-}$ ( $\bar{p} K^{+}$ ) or $p K^{+}$ ( $\bar{p} K^{-}$ ) invariant mass spectra. Cross sections for $γ γ \to p \bar{p} K^{+} K^{-}$ , $Λ (1520)^{0} \bar{p} K^{+} + c . c .$ and the products $σ (γ γ \to Θ (1540)^{0} \bar{p} K^{+} + c . c .) B (Θ (1540)^{0} \to p K^{-})$ and $σ (γ γ \to Θ (1540)^{+ +} \bar{p} K^{-} + c . c .) B (Θ (1540)^{+ +} \to p K^{+})$ are measured. We also determine upper limits on the products of the $χ_{c 0}$ and $χ_{c 2}$ two-photon decay widths and their branching fractions to $p \bar{p} K^{+} K^{-}$ at the 90% credibility level.

Authors:: Shen, C. P.; Yuan, C. Z.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bakich, A. M.; Barberio, E.; Behera, P.; Bhardwaj, V.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bonvicini, G.; Bozek, A.; Bračko, M. more »« less

Publication Date:: 2016-06-30

Research Org.:: Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Org.:: Belle Collaboration

OSTI Identifier:: 1594386

Alternate Identifier(s):: OSTI ID: 1259997

Report Number(s):: PNNL-SA-120220
Journal ID: ISSN 2470-0010; PRVDAQ; TRN: US2101470

Grant/Contract Number:: SC0009973

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review D

Additional Journal Information:: Journal Volume: 93; Journal Issue: 11; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Shen, C. P., Yuan, C. Z., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Barberio, E., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dash, N., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Fang, W. X., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gillard, R., Glattauer, R., Goldenzweig, P., Grzymkowska, O., Haba, J., Hayasaka, K., Hayashii, H., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, Y., Jaegle, I., Jeon, H. B., Joo, K. K., Julius, T., Kang, K. H., Kato, E., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kim, Y. J., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, C. H., Li, H., Li, L., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moll, A., Moon, H. K., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nishida, S., Ogawa, S., Olsen, S. L., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Pal, B., Park, C. -S., Park, H., Pesántez, L., Pestotnik, R., Petrič, M., Piilonen, L. E., Pulvermacher, C., Rauch, J., Ritter, M., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schlüter, T., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Semmler, D., Senyo, K., Seong, I. S., Sevior, M. E., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Strube, J. F., Stypula, J., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Varner, G., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yelton, J., Yook, Y., Yusa, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A. First observation of γγ→pp¯K+K- and search for exotic baryons in pK systems.  United States: N. p., 2016. 
Web.  doi:10.1103/PhysRevD.93.112017.

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                    Shen, C. P., Yuan, C. Z., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Barberio, E., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dash, N., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Fang, W. X., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gillard, R., Glattauer, R., Goldenzweig, P., Grzymkowska, O., Haba, J., Hayasaka, K., Hayashii, H., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, Y., Jaegle, I., Jeon, H. B., Joo, K. K., Julius, T., Kang, K. H., Kato, E., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kim, Y. J., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, C. H., Li, H., Li, L., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moll, A., Moon, H. K., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nishida, S., Ogawa, S., Olsen, S. L., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Pal, B., Park, C. -S., Park, H., Pesántez, L., Pestotnik, R., Petrič, M., Piilonen, L. E., Pulvermacher, C., Rauch, J., Ritter, M., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schlüter, T., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Semmler, D., Senyo, K., Seong, I. S., Sevior, M. E., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Strube, J. F., Stypula, J., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Varner, G., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yelton, J., Yook, Y., Yusa, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., & Zupanc, A. First observation of γγ→pp¯K+K- and search for exotic baryons in pK systems.  United States.  https://doi.org/10.1103/PhysRevD.93.112017

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                    Shen, C. P., Yuan, C. Z., Adachi, I., Aihara, H., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Barberio, E., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dash, N., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Fang, W. X., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gillard, R., Glattauer, R., Goldenzweig, P., Grzymkowska, O., Haba, J., Hayasaka, K., Hayashii, H., Hou, W. -S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, Y., Jaegle, I., Jeon, H. B., Joo, K. K., Julius, T., Kang, K. H., Kato, E., Kiesling, C., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kim, Y. J., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, C. H., Li, H., Li, L., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Moll, A., Moon, H. K., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Natkaniec, Z., Nishida, S., Ogawa, S., Olsen, S. L., Ostrowicz, W., Pakhlov, P., Pakhlova, G., Pal, B., Park, C. -S., Park, H., Pesántez, L., Pestotnik, R., Petrič, M., Piilonen, L. E., Pulvermacher, C., Rauch, J., Ritter, M., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schlüter, T., Schneider, O., Schnell, G., Schwanda, C., Seino, Y., Semmler, D., Senyo, K., Seong, I. S., Sevior, M. E., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Strube, J. F., Stypula, J., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Varner, G., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Watanabe, Y., Williams, K. M., Won, E., Yamaoka, J., Yelton, J., Yook, Y., Yusa, Y., Zhang, C. C., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A. Thu .  
"First observation of γγ→pp¯K+K- and search for exotic baryons in pK systems".  United States.  https://doi.org/10.1103/PhysRevD.93.112017.  https://www.osti.gov/servlets/purl/1594386.

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@article{osti_1594386,

  title        = {First observation of γγ→pp¯K+K- and search for exotic baryons in pK systems},

  author       = {Shen, C. P. and Yuan, C. Z. and Adachi, I. and Aihara, H. and Asner, D. M. and Aulchenko, V. and Aushev, T. and Ayad, R. and Babu, V. and Badhrees, I. and Bakich, A. M. and Barberio, E. and Behera, P. and Bhardwaj, V. and Bhuyan, B. and Biswal, J. and Bobrov, A. and Bonvicini, G. and Bozek, A. and Bračko, M. and Browder, T. E. and Červenkov, D. and Chang, P. and Chekelian, V. and Chen, A. and Cheon, B. G. and Chilikin, K. and Chistov, R. and Cho, K. and Chobanova, V. and Choi, S. -K. and Choi, Y. and Cinabro, D. and Dalseno, J. and Danilov, M. and Dash, N. and Doležal, Z. and Drásal, Z. and Dutta, D. and Eidelman, S. and Fang, W. X. and Fast, J. E. and Ferber, T. and Fulsom, B. G. and Gaur, V. and Gabyshev, N. and Garmash, A. and Gillard, R. and Glattauer, R. and Goldenzweig, P. and Grzymkowska, O. and Haba, J. and Hayasaka, K. and Hayashii, H. and Hou, W. -S. and Iijima, T. and Inami, K. and Inguglia, G. and Ishikawa, A. and Itoh, R. and Iwasaki, Y. and Jaegle, I. and Jeon, H. B. and Joo, K. K. and Julius, T. and Kang, K. H. and Kato, E. and Kiesling, C. and Kim, D. Y. and Kim, J. B. and Kim, K. T. and Kim, S. H. and Kim, Y. J. and Kodyš, P. and Korpar, S. and Kotchetkov, D. and Križan, P. and Krokovny, P. and Kuzmin, A. and Kwon, Y. -J. and Lange, J. S. and Li, C. H. and Li, H. and Li, L. and Li, Y. and Li Gioi, L. and Libby, J. and Liventsev, D. and Lubej, M. and Luo, T. and Masuda, M. and Matsuda, T. and Matvienko, D. and Miyabayashi, K. and Miyata, H. and Mizuk, R. and Mohanty, G. B. and Mohanty, S. and Moll, A. and Moon, H. K. and Mussa, R. and Nakano, E. and Nakao, M. and Nanut, T. and Nath, K. J. and Natkaniec, Z. and Nishida, S. and Ogawa, S. and Olsen, S. L. and Ostrowicz, W. and Pakhlov, P. and Pakhlova, G. and Pal, B. and Park, C. -S. and Park, H. and Pesántez, L. and Pestotnik, R. and Petrič, M. and Piilonen, L. E. and Pulvermacher, C. and Rauch, J. and Ritter, M. and Sakai, Y. and Sandilya, S. and Santelj, L. and Sanuki, T. and Savinov, V. and Schlüter, T. and Schneider, O. and Schnell, G. and Schwanda, C. and Seino, Y. and Semmler, D. and Senyo, K. and Seong, I. S. and Sevior, M. E. and Shibata, T. -A. and Shiu, J. -G. and Shwartz, B. and Simon, F. and Sokolov, A. and Solovieva, E. and Stanič, S. and Starič, M. and Strube, J. F. and Stypula, J. and Sumihama, M. and Sumiyoshi, T. and Takizawa, M. and Tamponi, U. and Tanida, K. and Tenchini, F. and Trabelsi, K. and Uchida, M. and Uehara, S. and Uglov, T. and Unno, Y. and Uno, S. and Urquijo, P. and Usov, Y. and Van Hulse, C. and Varner, G. and Wang, C. H. and Wang, M. -Z. and Wang, P. and Watanabe, M. and Watanabe, Y. and Williams, K. M. and Won, E. and Yamaoka, J. and Yelton, J. and Yook, Y. and Yusa, Y. and Zhang, C. C. and Zhang, Z. P. and Zhilich, V. and Zhukova, V. and Zhulanov, V. and Zupanc, A.},

  abstractNote = {The process γγ→pp¯K+K- and its intermediate processes are measured for the first time using a 980 fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The production of pp¯K+K- and a Λ(1520)0 (Λ¯(1520)0) signal in the pK- (p¯K+) invariant mass spectrum are clearly observed. However, no evidence for an exotic baryon near 1540 MeV/c2, denoted as Θ(1540)0 (Θ¯(1540)0) or Θ(1540)++ (Θ(1540)---), is seen in the pK- (p¯K+) or pK+ (p¯K-) invariant mass spectra. Cross sections for γγ→pp¯K+K-, Λ(1520)0p¯K++c.c. and the products σ(γγ→Θ(1540)0p¯K++c.c.)B(Θ(1540)0→pK-) and σ(γγ→Θ(1540)++p¯K-+c.c.)B(Θ(1540)++→pK+) are measured. We also determine upper limits on the products of the χc0 and χc2 two-photon decay widths and their branching fractions to pp¯K+K- at the 90% credibility level.},

  doi          = {10.1103/PhysRevD.93.112017},

  journal      = {Physical Review D},

  number       = 11,

  volume       = 93,

  place        = {United States},

  year         = {2016},

  month        = {6}

}

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Berger, Ch.; Wagner, W.
Physics Reports, Vol. 146, Issue 1-2
DOI: 10.1016/0370-1573(87)90012-3

QCD and strongly coupled gauge theories: challenges and perspectives
journal, October 2014

Brambilla, N.; Eidelman, S.; Foka, P.
The European Physical Journal C, Vol. 74, Issue 10
DOI: 10.1140/epjc/s10052-014-2981-5

The pentaquark candidates in the dynamical diquark picture
journal, October 2015

Lebed, Richard F.
Physics Letters B, Vol. 749
DOI: 10.1016/j.physletb.2015.08.032

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

Brambilla, N.; Eidelman, S.; Heltsley, B. K.
The European Physical Journal C, Vol. 71, Issue 2
DOI: 10.1140/epjc/s10052-010-1534-9

Achievements of KEKB
journal, January 2013

Abe, T.; Akai, K.; Akasaka, N.
Progress of Theoretical and Experimental Physics, Vol. 2013, Issue 3
DOI: 10.1093/ptep/pts102

LHCb pentaquark as a ${\bar{D}}^{} Σ_{c} - {\bar{D}}^{} Σ_{c}^{*}$ molecular state
journal, November 2015

Roca, L.; Nieves, J.; Oset, E.
Physical Review D, Vol. 92, Issue 9
DOI: 10.1103/PhysRevD.92.094003

Belle PID
journal, November 2002

Nakano, E.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 494, Issue 1-3
DOI: 10.1016/S0168-9002(02)01510-3

Observation of $J / ψ p$ Resonances Consistent with Pentaquark States in $Λ_{b}^{0} \to J / ψ K^{-} p$ Decays
journal, August 2015

Aaij, R.; Adeva, B.; Adinolfi, M.
Physical Review Letters, Vol. 115, Issue 7
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Identifying Exotic Hidden-Charm Pentaquarks
journal, September 2015

Chen, Rui; Liu, Xiang; Li, Xue-Qian
Physical Review Letters, Vol. 115, Issue 13
DOI: 10.1103/PhysRevLett.115.132002

A schematic model of baryons and mesons
journal, February 1964

Gell-Mann, M.
Physics Letters, Vol. 8, Issue 3
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$\bar{D} Σ_{c}^{⁎}$ and ${\bar{D}}^{⁎} Σ_{c}$ interactions and the LHCb hidden-charmed pentaquarks
journal, February 2016

He, Jun
Physics Letters B, Vol. 753
DOI: 10.1016/j.physletb.2015.12.071

Overview of the KEKB accelerators
journal, February 2003

Kurokawa, S.; Kikutani, E.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 499, Issue 1
DOI: 10.1016/S0168-9002(02)01771-0

The Belle detector
journal, February 2002

Abashian, A.; Gotow, K.; Morgan, N.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 479, Issue 1
DOI: 10.1016/S0168-9002(01)02013-7

Electron identification in Belle
journal, June 2002

Hanagaki, K.; Kakuno, H.; Ikeda, H.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 485, Issue 3
DOI: 10.1016/S0168-9002(01)02113-1

Observation of a Charged Charmoniumlike Structure in $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ at $\sqrt{s} = 4.26 GeV$
journal, June 2013

Ablikim, M.; Achasov, M. N.; Ai, X. C.
Physical Review Letters, Vol. 110, Issue 25
DOI: 10.1103/PhysRevLett.110.252001

Study of $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ and Observation of a Charged Charmoniumlike State at Belle
journal, June 2013

Liu, Z. Q.; Shen, C. P.; Yuan, C. Z.
Physical Review Letters, Vol. 110, Issue 25
DOI: 10.1103/PhysRevLett.110.252002

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Title: First observation of γ γ → p p ¯ K + K - and search for exotic baryons in p K systems

Abstract

Citation Formats

Prospects for pentaquark searches in e + e − annihilations and γγ collisions journal, October 2004

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Review of Particle Physics journal, August 2014

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Nonstrange and strange pentaquarks with hidden charm journal, November 2015

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Physics achievements from the Belle experiment journal, January 2012

Photon photon reactions journal, February 1987

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LHCb pentaquark as a D ¯ * Σ c − D ¯ * Σ c * molecular state journal, November 2015

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The Belle detector journal, February 2002

Electron identification in Belle journal, June 2002

Observation of a Charged Charmoniumlike Structure in e + e − → π + π − J / ψ at s = 4.26 GeV journal, June 2013

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Title: First observation of $γ γ \to p \bar{p} K^{+} K^{-}$ and search for exotic baryons in $p K$ systems

Prospects for pentaquark searches in e + e − annihilations and γγ collisions
journal, October 2004

Observation of a new charged charmoniumlike state in ${\bar{B}}^{0} \to J / ψ K^{-} π^{+}$ decays
journal, December 2014

The new pentaquarks in the diquark model
journal, October 2015

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

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journal, December 2013

Review of Particle Physics
journal, August 2014

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journal, November 2015

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journal, December 2015

Evidence for a Narrow $S = + 1$ Baryon Resonance in Photoproduction from the Neutron
journal, July 2003

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journal, June 2016

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journal, January 2012

Photon photon reactions
journal, February 1987

QCD and strongly coupled gauge theories: challenges and perspectives
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The pentaquark candidates in the dynamical diquark picture
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journal, February 2011

Achievements of KEKB
journal, January 2013

LHCb pentaquark as a ${\bar{D}}^{} Σ_{c} - {\bar{D}}^{} Σ_{c}^{*}$ molecular state
journal, November 2015

Belle PID
journal, November 2002

Observation of $J / ψ p$ Resonances Consistent with Pentaquark States in $Λ_{b}^{0} \to J / ψ K^{-} p$ Decays
journal, August 2015

Identifying Exotic Hidden-Charm Pentaquarks
journal, September 2015

A schematic model of baryons and mesons
journal, February 1964

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journal, February 2016

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journal, June 2002

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journal, June 2013

Study of $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ and Observation of a Charged Charmoniumlike State at Belle
journal, June 2013