Experimental constraints on the spin and parity of the Λc(2880)+

R. Mizuk, K. Abe, I. Adachi, H. Aihara, D. Anipko, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka & 131 others T. E. Browder, M. C. Chang, A. Chen, K. F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Danilov, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, J. H. Kang, P. Kapusta, N. Katayama, H. R. Khan, H. Kichimi, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. J. Kwon, G. Leder, J. Lee, M. J. Lee, S. E. Lee, T. Lesiak, S. W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, H. Miyake, H. Miyata, Y. Miyazaki, M. Nakao, Z. Natkaniec, S. Nishida, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, K. S. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Satoyama, O. Schneider, J. Schümann, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, J. B. Singh, A. Somov, N. Soni, S. Stanič, M. Starič, H. Stoeck, S. Y. Suzuki, F. Takasaki, K. Tamai, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, S. Uno, P. Urquijo, Y. Usov, G. Varner, S. Villa, C. H. Wang, Y. Watanabe, E. Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. Z. Yuan, L. M. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

We report the results of several studies of the Λc+π+π-X final state in continuum e+e- annihilation data collected by the Belle detector. An analysis of angular distributions in Λc(2880)+→Σc(2455)0, ++π+,- decays strongly favors a Λc(2880)+ spin assignment of 52 over 32 or 12. We find evidence for Λc(2880)+→Σc(2520)0,++π+,- decay and measure the ratio of Λc(2880)+ partial widths Γ(Σc(2520)π)/Γ(Σc(2455)π)=0.225±0. 062±0.025. This value favors the Λc(2880)+ spin-parity assignment of 52+ over 52-. We also report the first observation of Λc(2940) +→Σc(2455)0,++π+,- decay and measure Λc(2880)+ and Λc(2940)+ mass and width parameters. These studies are based on a 553fb-1 data sample collected at or near the Υ(4S) resonance at the KEKB collider.

Original languageEnglish
Article number262001
JournalPhysical Review Letters
Volume98
Issue number26
DOIs
Publication statusPublished - Jun 28 2007

Fingerprint

parity
decay
angular distribution
continuums
detectors

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Mizuk, R., Abe, K., Adachi, I., Aihara, H., Anipko, D., Aulchenko, V., ... Zupanc, A. (2007). Experimental constraints on the spin and parity of the Λc(2880)+. Physical Review Letters, 98(26), [262001]. https://doi.org/10.1103/PhysRevLett.98.262001

Experimental constraints on the spin and parity of the Λc(2880)+. / Mizuk, R.; Abe, K.; Adachi, I.; Aihara, H.; Anipko, D.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Bedny, I.; Belous, K.; Bitenc, U.; Bizjak, I.; Blyth, S.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Chang, M. C.; Chen, A.; Chen, K. F.; Chen, W. T.; Cheon, B. G.; Chistov, R.; Choi, Y.; Choi, Y. K.; Cole, S.; Dalseno, J.; Danilov, M.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Fratina, S.; Gabyshev, N.; Garmash, A.; Gershon, T.; Gokhroo, G.; Golob, B.; Ha, H.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, W. S.; Iijima, T.; Ikado, K.; Imoto, A.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kaji, H.; Kang, J. H.; Kapusta, P.; Katayama, N.; Khan, H. R.; Kichimi, H.; Kim, Y. J.; Kinoshita, K.; Korpar, S.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kumar, R.; Kuo, C. C.; Kuzmin, A.; Kwon, Y. J.; Leder, G.; Lee, J.; Lee, M. J.; Lee, S. E.; Lesiak, T.; Lin, S. W.; Liventsev, D.; Majumder, G.; Mandl, F.; Matsumoto, T.; Matyja, A.; McOnie, S.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Ogawa, S.; Ohshima, T.; Okuno, S.; Onuki, Y.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Park, H.; Park, K. S.; Peak, L. S.; Pestotnik, R.; Piilonen, L. E.; Sakai, Y.; Satoyama, N.; Schneider, O.; Schümann, J.; Seidl, R.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Singh, J. B.; Somov, A.; Soni, N.; Stanič, S.; Starič, M.; Stoeck, H.; Suzuki, S. Y.; Takasaki, F.; Tamai, K.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tian, X. C.; Tikhomirov, I.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Uglov, T.; Ueno, K.; Uno, S.; Urquijo, P.; Usov, Y.; Varner, G.; Villa, S.; Wang, C. H.; Watanabe, Y.; Won, E.; Xie, Q. L.; Yabsley, B. D.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Yuan, C. Z.; Zhang, L. M.; Zhang, Z. P.; Zhilich, V.; Zupanc, A.

In: Physical Review Letters, Vol. 98, No. 26, 262001, 28.06.2007.

Research output: Contribution to journalArticle

Mizuk, R, Abe, K, Adachi, I, Aihara, H, Anipko, D, Aulchenko, V, Aushev, T, Bakich, AM, Balagura, V, Barberio, E, Bay, A, Bedny, I, Belous, K, Bitenc, U, Bizjak, I, Blyth, S, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chang, MC, Chen, A, Chen, KF, Chen, WT, Cheon, BG, Chistov, R, Choi, Y, Choi, YK, Cole, S, Dalseno, J, Danilov, M, Drutskoy, A, Eidelman, S, Epifanov, D, Fratina, S, Gabyshev, N, Garmash, A, Gershon, T, Gokhroo, G, Golob, B, Ha, H, Haba, J, Hayasaka, K, Hayashii, H, Hazumi, M, Heffernan, D, Hokuue, T, Hoshi, Y, Hou, S, Hou, WS, Iijima, T, Ikado, K, Imoto, A, Inami, K, Ishikawa, A, Itoh, R, Iwasaki, M, Iwasaki, Y, Kaji, H, Kang, JH, Kapusta, P, Katayama, N, Khan, HR, Kichimi, H, Kim, YJ, Kinoshita, K, Korpar, S, Križan, P, Krokovny, P, Kulasiri, R, Kumar, R, Kuo, CC, Kuzmin, A, Kwon, YJ, Leder, G, Lee, J, Lee, MJ, Lee, SE, Lesiak, T, Lin, SW, Liventsev, D, Majumder, G, Mandl, F, Matsumoto, T, Matyja, A, McOnie, S, Miyake, H, Miyata, H, Miyazaki, Y, Nakao, M, Natkaniec, Z, Nishida, S, Ogawa, S, Ohshima, T, Okuno, S, Onuki, Y, Ozaki, H, Pakhlov, P, Pakhlova, G, Park, H, Park, KS, Peak, LS, Pestotnik, R, Piilonen, LE, Sakai, Y, Satoyama, N, Schneider, O, Schümann, J, Seidl, R, Senyo, K, Sevior, ME, Shapkin, M, Shibuya, H, Singh, JB, Somov, A, Soni, N, Stanič, S, Starič, M, Stoeck, H, Suzuki, SY, Takasaki, F, Tamai, K, Tanaka, M, Taylor, GN, Teramoto, Y, Tian, XC, Tikhomirov, I, Tsuboyama, T, Tsukamoto, T, Uehara, S, Uglov, T, Ueno, K, Uno, S, Urquijo, P, Usov, Y, Varner, G, Villa, S, Wang, CH, Watanabe, Y, Won, E, Xie, QL, Yabsley, BD, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Yuan, CZ, Zhang, LM, Zhang, ZP, Zhilich, V & Zupanc, A 2007, 'Experimental constraints on the spin and parity of the Λc(2880)+', Physical Review Letters, vol. 98, no. 26, 262001. https://doi.org/10.1103/PhysRevLett.98.262001
Mizuk R, Abe K, Adachi I, Aihara H, Anipko D, Aulchenko V et al. Experimental constraints on the spin and parity of the Λc(2880)+. Physical Review Letters. 2007 Jun 28;98(26). 262001. https://doi.org/10.1103/PhysRevLett.98.262001
Mizuk, R. ; Abe, K. ; Adachi, I. ; Aihara, H. ; Anipko, D. ; Aulchenko, V. ; Aushev, T. ; Bakich, A. M. ; Balagura, V. ; Barberio, E. ; Bay, A. ; Bedny, I. ; Belous, K. ; Bitenc, U. ; Bizjak, I. ; Blyth, S. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T. E. ; Chang, M. C. ; Chen, A. ; Chen, K. F. ; Chen, W. T. ; Cheon, B. G. ; Chistov, R. ; Choi, Y. ; Choi, Y. K. ; Cole, S. ; Dalseno, J. ; Danilov, M. ; Drutskoy, A. ; Eidelman, S. ; Epifanov, D. ; Fratina, S. ; Gabyshev, N. ; Garmash, A. ; Gershon, T. ; Gokhroo, G. ; Golob, B. ; Ha, H. ; Haba, J. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Heffernan, D. ; Hokuue, T. ; Hoshi, Y. ; Hou, S. ; Hou, W. S. ; Iijima, T. ; Ikado, K. ; Imoto, A. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kaji, H. ; Kang, J. H. ; Kapusta, P. ; Katayama, N. ; Khan, H. R. ; Kichimi, H. ; Kim, Y. J. ; Kinoshita, K. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kulasiri, R. ; Kumar, R. ; Kuo, C. C. ; Kuzmin, A. ; Kwon, Y. J. ; Leder, G. ; Lee, J. ; Lee, M. J. ; Lee, S. E. ; Lesiak, T. ; Lin, S. W. ; Liventsev, D. ; Majumder, G. ; Mandl, F. ; Matsumoto, T. ; Matyja, A. ; McOnie, S. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Nakao, M. ; Natkaniec, Z. ; Nishida, S. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Onuki, Y. ; Ozaki, H. ; Pakhlov, P. ; Pakhlova, G. ; Park, H. ; Park, K. S. ; Peak, L. S. ; Pestotnik, R. ; Piilonen, L. E. ; Sakai, Y. ; Satoyama, N. ; Schneider, O. ; Schümann, J. ; Seidl, R. ; Senyo, K. ; Sevior, M. E. ; Shapkin, M. ; Shibuya, H. ; Singh, J. B. ; Somov, A. ; Soni, N. ; Stanič, S. ; Starič, M. ; Stoeck, H. ; Suzuki, S. Y. ; Takasaki, F. ; Tamai, K. ; Tanaka, M. ; Taylor, G. N. ; Teramoto, Y. ; Tian, X. C. ; Tikhomirov, I. ; Tsuboyama, T. ; Tsukamoto, T. ; Uehara, S. ; Uglov, T. ; Ueno, K. ; Uno, S. ; Urquijo, P. ; Usov, Y. ; Varner, G. ; Villa, S. ; Wang, C. H. ; Watanabe, Y. ; Won, E. ; Xie, Q. L. ; Yabsley, B. D. ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Yuan, C. Z. ; Zhang, L. M. ; Zhang, Z. P. ; Zhilich, V. ; Zupanc, A. / Experimental constraints on the spin and parity of the Λc(2880)+. In: Physical Review Letters. 2007 ; Vol. 98, No. 26.
@article{73d8e40061564efca0ea2eb14783eb53,
title = "Experimental constraints on the spin and parity of the Λc(2880)+",
abstract = "We report the results of several studies of the Λc+π+π-X final state in continuum e+e- annihilation data collected by the Belle detector. An analysis of angular distributions in Λc(2880)+→Σc(2455)0, ++π+,- decays strongly favors a Λc(2880)+ spin assignment of 52 over 32 or 12. We find evidence for Λc(2880)+→Σc(2520)0,++π+,- decay and measure the ratio of Λc(2880)+ partial widths Γ(Σc(2520)π)/Γ(Σc(2455)π)=0.225±0. 062±0.025. This value favors the Λc(2880)+ spin-parity assignment of 52+ over 52-. We also report the first observation of Λc(2940) +→Σc(2455)0,++π+,- decay and measure Λc(2880)+ and Λc(2940)+ mass and width parameters. These studies are based on a 553fb-1 data sample collected at or near the Υ(4S) resonance at the KEKB collider.",
author = "R. Mizuk and K. Abe and I. Adachi and H. Aihara and D. Anipko and V. Aulchenko and T. Aushev and Bakich, {A. M.} and V. Balagura and E. Barberio and A. Bay and I. Bedny and K. Belous and U. Bitenc and I. Bizjak and S. Blyth and A. Bondar and A. Bozek and M. Bračko and J. Brodzicka and Browder, {T. E.} and Chang, {M. C.} and A. Chen and Chen, {K. F.} and Chen, {W. T.} and Cheon, {B. G.} and R. Chistov and Y. Choi and Choi, {Y. K.} and S. Cole and J. Dalseno and M. Danilov and A. Drutskoy and S. Eidelman and D. Epifanov and S. Fratina and N. Gabyshev and A. Garmash and T. Gershon and G. Gokhroo and B. Golob and H. Ha and J. Haba and K. Hayasaka and H. Hayashii and M. Hazumi and D. Heffernan and T. Hokuue and Y. Hoshi and S. Hou and Hou, {W. S.} and T. Iijima and K. Ikado and A. Imoto and K. Inami and A. Ishikawa and R. Itoh and M. Iwasaki and Y. Iwasaki and H. Kaji and Kang, {J. H.} and P. Kapusta and N. Katayama and Khan, {H. R.} and H. Kichimi and Kim, {Y. J.} and K. Kinoshita and S. Korpar and P. Križan and P. Krokovny and R. Kulasiri and R. Kumar and Kuo, {C. C.} and A. Kuzmin and Kwon, {Y. J.} and G. Leder and J. Lee and Lee, {M. J.} and Lee, {S. E.} and T. Lesiak and Lin, {S. W.} and D. Liventsev and G. Majumder and F. Mandl and T. Matsumoto and A. Matyja and S. McOnie and H. Miyake and H. Miyata and Y. Miyazaki and M. Nakao and Z. Natkaniec and S. Nishida and S. Ogawa and T. Ohshima and S. Okuno and Y. Onuki and H. Ozaki and P. Pakhlov and G. Pakhlova and H. Park and Park, {K. S.} and Peak, {L. S.} and R. Pestotnik and Piilonen, {L. E.} and Y. Sakai and N. Satoyama and O. Schneider and J. Sch{\"u}mann and R. Seidl and K. Senyo and Sevior, {M. E.} and M. Shapkin and H. Shibuya and Singh, {J. B.} and A. Somov and N. Soni and S. Stanič and M. Starič and H. Stoeck and Suzuki, {S. Y.} and F. Takasaki and K. Tamai and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and Tian, {X. C.} and I. Tikhomirov and T. Tsuboyama and T. Tsukamoto and S. Uehara and T. Uglov and K. Ueno and S. Uno and P. Urquijo and Y. Usov and G. Varner and S. Villa and Wang, {C. H.} and Y. Watanabe and E. Won and Xie, {Q. L.} and Yabsley, {B. D.} and A. Yamaguchi and Y. Yamashita and M. Yamauchi and Yuan, {C. Z.} and Zhang, {L. M.} and Zhang, {Z. P.} and V. Zhilich and A. Zupanc",
year = "2007",
month = "6",
day = "28",
doi = "10.1103/PhysRevLett.98.262001",
language = "English",
volume = "98",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "26",

}

TY - JOUR

T1 - Experimental constraints on the spin and parity of the Λc(2880)+

AU - Mizuk, R.

AU - Abe, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Anipko, D.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Bay, A.

AU - Bedny, I.

AU - Belous, K.

AU - Bitenc, U.

AU - Bizjak, I.

AU - Blyth, S.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chen, A.

AU - Chen, K. F.

AU - Chen, W. T.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, Y.

AU - Choi, Y. K.

AU - Cole, S.

AU - Dalseno, J.

AU - Danilov, M.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fratina, S.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Golob, B.

AU - Ha, H.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Heffernan, D.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hou, S.

AU - Hou, W. S.

AU - Iijima, T.

AU - Ikado, K.

AU - Imoto, A.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kaji, H.

AU - Kang, J. H.

AU - Kapusta, P.

AU - Katayama, N.

AU - Khan, H. R.

AU - Kichimi, H.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kumar, R.

AU - Kuo, C. C.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Leder, G.

AU - Lee, J.

AU - Lee, M. J.

AU - Lee, S. E.

AU - Lesiak, T.

AU - Lin, S. W.

AU - Liventsev, D.

AU - Majumder, G.

AU - Mandl, F.

AU - Matsumoto, T.

AU - Matyja, A.

AU - McOnie, S.

AU - Miyake, H.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Onuki, Y.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, H.

AU - Park, K. S.

AU - Peak, L. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sakai, Y.

AU - Satoyama, N.

AU - Schneider, O.

AU - Schümann, J.

AU - Seidl, R.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shibuya, H.

AU - Singh, J. B.

AU - Somov, A.

AU - Soni, N.

AU - Stanič, S.

AU - Starič, M.

AU - Stoeck, H.

AU - Suzuki, S. Y.

AU - Takasaki, F.

AU - Tamai, K.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tian, X. C.

AU - Tikhomirov, I.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Uglov, T.

AU - Ueno, K.

AU - Uno, S.

AU - Urquijo, P.

AU - Usov, Y.

AU - Varner, G.

AU - Villa, S.

AU - Wang, C. H.

AU - Watanabe, Y.

AU - Won, E.

AU - Xie, Q. L.

AU - Yabsley, B. D.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yuan, C. Z.

AU - Zhang, L. M.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zupanc, A.

PY - 2007/6/28

Y1 - 2007/6/28

N2 - We report the results of several studies of the Λc+π+π-X final state in continuum e+e- annihilation data collected by the Belle detector. An analysis of angular distributions in Λc(2880)+→Σc(2455)0, ++π+,- decays strongly favors a Λc(2880)+ spin assignment of 52 over 32 or 12. We find evidence for Λc(2880)+→Σc(2520)0,++π+,- decay and measure the ratio of Λc(2880)+ partial widths Γ(Σc(2520)π)/Γ(Σc(2455)π)=0.225±0. 062±0.025. This value favors the Λc(2880)+ spin-parity assignment of 52+ over 52-. We also report the first observation of Λc(2940) +→Σc(2455)0,++π+,- decay and measure Λc(2880)+ and Λc(2940)+ mass and width parameters. These studies are based on a 553fb-1 data sample collected at or near the Υ(4S) resonance at the KEKB collider.

AB - We report the results of several studies of the Λc+π+π-X final state in continuum e+e- annihilation data collected by the Belle detector. An analysis of angular distributions in Λc(2880)+→Σc(2455)0, ++π+,- decays strongly favors a Λc(2880)+ spin assignment of 52 over 32 or 12. We find evidence for Λc(2880)+→Σc(2520)0,++π+,- decay and measure the ratio of Λc(2880)+ partial widths Γ(Σc(2520)π)/Γ(Σc(2455)π)=0.225±0. 062±0.025. This value favors the Λc(2880)+ spin-parity assignment of 52+ over 52-. We also report the first observation of Λc(2940) +→Σc(2455)0,++π+,- decay and measure Λc(2880)+ and Λc(2940)+ mass and width parameters. These studies are based on a 553fb-1 data sample collected at or near the Υ(4S) resonance at the KEKB collider.

UR - http://www.scopus.com/inward/record.url?scp=34547292556&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547292556&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.98.262001

DO - 10.1103/PhysRevLett.98.262001

M3 - Article

VL - 98

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 26

M1 - 262001

ER -