Observation of an isotriplet of excited charmed baryons decaying to Λ c + π

R. Mizuk, K. Abe, H. Aihara, M. Akatsu, Y. Asano, V. Aulchenko, T. Aushev, A. M. Bakich, V. Balagura, Y. Ban, S. Banerjee, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder & 137 others Y. Chao, A. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, J. Haba, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, Y. B. Hsiung, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, Ju Hwan Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, J. H. Kim, S. K. Kim, S. M. Kim, P. Koppenburg, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, C. C. Kuo, A. Kuzmin, Youngjoon Kwon, S. E. Lee, S. H. Lee, T. Lesiak, J. Li, S. W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, W. Mitaroff, H. Miyake, H. Miyata, D. Mohapatra, T. Mori, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, S. Nishida, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, N. Parslow, R. Pestotnik, L. E. Piilonen, H. Sagawa, Y. Sakai, T. Schietinger, O. Schneider, P. Schönmeier, J. Schümann, S. Semenov, K. Senyo, R. Seuster, H. Shibuya, 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, S. Uehara, T. Uglov, K. Ueno, S. Uno, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M. Z. Wang, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yang, J. Ying, C. C. Zhang, J. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Žontar, D. Zürcher

Research output: Contribution to journal › Article

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Abstract

We report the observation of an isotriplet of excited charmed baryons, decaying into Λ c + π -, Λ c + π 0, and Λ c +π +. We measure the mass differences M(Λ c + π) -M(Λ c +) and widths to be 515.4 -3.1-6.0 +3.2+2.1 MeV/c 2, 61 -13-13 +18+22 MeV for the neutral state; 505.4 -4.6-2.0 +5.8+12.4 MeV/c 2, 62 -23-38 +37+52 MeV for the charged state; and 514.5 -3.1-4.9 +3.4+2.8 MeV/c 2, 75 -13-11 +18+12 MeV for the doubly charged state, where the uncertainties are statistical and systematic, respectively. These results are obtained from a 281 fb -1 data sample collected with the Belle detector near the υ(4S) resonance, at the KEKB asymmetric energy e +e - collider.

Original languageEnglish
Article number122002
JournalPhysical Review Letters
Volume94
Issue number12
DOIs
Publication statusPublished - 2005 Apr 1

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baryons
detectors
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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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Mizuk, R., Abe, K., Aihara, H., Akatsu, M., Asano, Y., Aulchenko, V., ... Zürcher, D. (2005). Observation of an isotriplet of excited charmed baryons decaying to Λ c + π. Physical Review Letters, 94(12), [122002]. https://doi.org/10.1103/PhysRevLett.94.122002
Mizuk, R. ; Abe, K. ; Aihara, H. ; Akatsu, M. ; Asano, Y. ; Aulchenko, V. ; Aushev, T. ; Bakich, A. M. ; Balagura, V. ; Ban, Y. ; Banerjee, S. ; Bedny, I. ; Bitenc, U. ; Bizjak, I. ; Blyth, S. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T. E. ; Chao, Y. ; Chen, A. ; Cheon, B. G. ; Chistov, R. ; Choi, S. K. ; Choi, Y. ; Chuvikov, A. ; Cole, S. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Dragic, J. ; Drutskoy, A. ; Eidelman, S. ; Fratina, S. ; Gabyshev, N. ; Garmash, A. ; Gershon, T. ; Gokhroo, G. ; Haba, J. ; Hastings, N. C. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Hokuue, T. ; Hoshi, Y. ; Hou, S. ; Hou, W. S. ; Hsiung, Y. B. ; Iijima, T. ; Imoto, A. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kang, Ju Hwan ; Kang, J. S. ; Kapusta, P. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Khan, H. R. ; Kichimi, H. ; Kim, H. J. ; Kim, J. H. ; Kim, S. K. ; Kim, S. M. ; Koppenburg, P. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kulasiri, R. ; Kuo, C. C. ; Kuzmin, A. ; Kwon, Youngjoon ; Lee, S. E. ; Lee, S. H. ; Lesiak, T. ; Li, J. ; Lin, S. W. ; Liventsev, D. ; Majumder, G. ; Mandl, F. ; Matsumoto, T. ; Mitaroff, W. ; Miyake, H. ; Miyata, H. ; Mohapatra, D. ; Mori, T. ; Nagamine, T. ; Nagasaka, Y. ; Nakano, E. ; Nakao, M. ; Nishida, S. ; Ogawa, S. ; Ohshima, T. ; Okabe, T. ; Okuno, S. ; Olsen, S. L. ; Ostrowicz, W. ; Ozaki, H. ; Pakhlov, P. ; Palka, H. ; Park, C. W. ; Park, H. ; Parslow, N. ; Pestotnik, R. ; Piilonen, L. E. ; Sagawa, H. ; Sakai, Y. ; Schietinger, T. ; Schneider, O. ; Schönmeier, P. ; Schümann, J. ; Semenov, S. ; Senyo, K. ; Seuster, R. ; Shibuya, H. ; Singh, J. B. ; Somov, A. ; Soni, N. ; Stamen, R. ; Stanič, S. ; Starič, M. ; Sumisawa, K. ; Sumiyoshi, T. ; Suzuki, S. Y. ; Tajima, O. ; Takasaki, F. ; Tamura, N. ; Tanaka, M. ; Teramoto, Y. ; Tian, X. C. ; Uehara, S. ; Uglov, T. ; Ueno, K. ; Uno, S. ; Varner, G. ; Varvell, K. E. ; Villa, S. ; Wang, C. C. ; Wang, C. H. ; Wang, M. Z. ; Yabsley, B. D. ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Yang, H. ; Ying, J. ; Zhang, C. C. ; Zhang, J. ; Zhang, L. M. ; Zhang, Z. P. ; Zhilich, V. ; Žontar, D. ; Zürcher, D. / Observation of an isotriplet of excited charmed baryons decaying to Λ c + π. In: Physical Review Letters. 2005 ; Vol. 94, No. 12.
@article{92f2286387f64e02949087d3e395ed00,
title = "Observation of an isotriplet of excited charmed baryons decaying to Λ c + π",
abstract = "We report the observation of an isotriplet of excited charmed baryons, decaying into Λ c + π -, Λ c + π 0, and Λ c +π +. We measure the mass differences M(Λ c + π) -M(Λ c +) and widths to be 515.4 -3.1-6.0 +3.2+2.1 MeV/c 2, 61 -13-13 +18+22 MeV for the neutral state; 505.4 -4.6-2.0 +5.8+12.4 MeV/c 2, 62 -23-38 +37+52 MeV for the charged state; and 514.5 -3.1-4.9 +3.4+2.8 MeV/c 2, 75 -13-11 +18+12 MeV for the doubly charged state, where the uncertainties are statistical and systematic, respectively. These results are obtained from a 281 fb -1 data sample collected with the Belle detector near the υ(4S) resonance, at the KEKB asymmetric energy e +e - collider.",
author = "R. Mizuk and K. Abe and H. Aihara and M. Akatsu and Y. Asano and V. Aulchenko and T. Aushev and Bakich, {A. M.} and V. Balagura 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. Bračko and J. Brodzicka and Browder, {T. E.} and Y. Chao and A. Chen and Cheon, {B. G.} and R. Chistov and Choi, {S. K.} and Y. Choi and A. Chuvikov and S. Cole and J. Dalseno and M. Danilov and M. Dash and J. Dragic and A. Drutskoy and S. Eidelman and S. Fratina and N. Gabyshev and A. Garmash and T. Gershon and G. Gokhroo and J. Haba and Hastings, {N. C.} and K. Hayasaka and H. Hayashii and M. Hazumi and T. Hokuue and Y. Hoshi and S. Hou and Hou, {W. S.} and Hsiung, {Y. B.} and T. Iijima and A. Imoto and K. Inami and A. Ishikawa and R. Itoh and M. Iwasaki and Y. Iwasaki and Kang, {Ju Hwan} and Kang, {J. S.} and P. Kapusta 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 P. Koppenburg and S. Korpar and P. Križan and P. Krokovny and R. Kulasiri and Kuo, {C. C.} and A. Kuzmin and Youngjoon Kwon and Lee, {S. E.} and Lee, {S. H.} and T. Lesiak and J. Li and Lin, {S. W.} and D. Liventsev and G. Majumder and F. Mandl and T. Matsumoto and W. Mitaroff and H. Miyake and H. Miyata and D. Mohapatra and T. Mori and T. Nagamine and Y. Nagasaka and E. Nakano and M. Nakao and S. Nishida and S. Ogawa and T. Ohshima and T. Okabe and S. Okuno and Olsen, {S. L.} and W. Ostrowicz and H. Ozaki and P. Pakhlov and H. Palka and Park, {C. W.} and H. Park and N. Parslow and R. Pestotnik and Piilonen, {L. E.} and H. Sagawa and Y. Sakai and T. Schietinger and O. Schneider and P. Sch{\"o}nmeier and J. Sch{\"u}mann and S. Semenov and K. Senyo and R. Seuster and H. Shibuya and Singh, {J. B.} and A. Somov and N. Soni and R. Stamen and S. Stanič and M. Starič 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 S. Uehara and T. Uglov and K. Ueno and S. Uno and G. Varner and Varvell, {K. E.} and S. Villa and Wang, {C. C.} and Wang, {C. H.} and Wang, {M. Z.} and Yabsley, {B. D.} and A. Yamaguchi and Y. Yamashita and M. Yamauchi and H. Yang and J. Ying and Zhang, {C. C.} and J. Zhang and Zhang, {L. M.} and Zhang, {Z. P.} and V. Zhilich and D. Žontar and D. Z{\"u}rcher",
year = "2005",
month = "4",
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doi = "10.1103/PhysRevLett.94.122002",
language = "English",
volume = "94",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
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Mizuk, R, Abe, K, Aihara, H, Akatsu, M, Asano, Y, Aulchenko, V, Aushev, T, Bakich, AM, Balagura, V, Ban, Y, Banerjee, S, Bedny, I, Bitenc, U, Bizjak, I, Blyth, S, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chao, Y, Chen, A, Cheon, BG, Chistov, R, Choi, SK, Choi, Y, Chuvikov, A, Cole, S, Dalseno, J, Danilov, M, Dash, M, Dragic, J, Drutskoy, A, Eidelman, S, Fratina, S, Gabyshev, N, Garmash, A, Gershon, T, Gokhroo, G, Haba, J, Hastings, NC, Hayasaka, K, Hayashii, H, Hazumi, M, Hokuue, T, Hoshi, Y, Hou, S, Hou, WS, Hsiung, YB, Iijima, T, Imoto, A, Inami, K, Ishikawa, A, Itoh, R, Iwasaki, M, Iwasaki, Y, Kang, JH, Kang, JS, Kapusta, P, Katayama, N, Kawai, H, Kawasaki, T, Khan, HR, Kichimi, H, Kim, HJ, Kim, JH, Kim, SK, Kim, SM, Koppenburg, P, Korpar, S, Križan, P, Krokovny, P, Kulasiri, R, Kuo, CC, Kuzmin, A, Kwon, Y, Lee, SE, Lee, SH, Lesiak, T, Li, J, Lin, SW, Liventsev, D, Majumder, G, Mandl, F, Matsumoto, T, Mitaroff, W, Miyake, H, Miyata, H, Mohapatra, D, Mori, T, Nagamine, T, Nagasaka, Y, Nakano, E, Nakao, M, Nishida, S, Ogawa, S, Ohshima, T, Okabe, T, Okuno, S, Olsen, SL, Ostrowicz, W, Ozaki, H, Pakhlov, P, Palka, H, Park, CW, Park, H, Parslow, N, Pestotnik, R, Piilonen, LE, Sagawa, H, Sakai, Y, Schietinger, T, Schneider, O, Schönmeier, P, Schümann, J, Semenov, S, Senyo, K, Seuster, R, Shibuya, H, 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, Uehara, S, Uglov, T, Ueno, K, Uno, S, Varner, G, Varvell, KE, Villa, S, Wang, CC, Wang, CH, Wang, MZ, Yabsley, BD, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Yang, H, Ying, J, Zhang, CC, Zhang, J, Zhang, LM, Zhang, ZP, Zhilich, V, Žontar, D & Zürcher, D 2005, 'Observation of an isotriplet of excited charmed baryons decaying to Λ c + π', Physical Review Letters, vol. 94, no. 12, 122002. https://doi.org/10.1103/PhysRevLett.94.122002

Observation of an isotriplet of excited charmed baryons decaying to Λ c + π. / Mizuk, R.; Abe, K.; Aihara, H.; Akatsu, M.; Asano, Y.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Balagura, V.; Ban, Y.; Banerjee, S.; Bedny, I.; Bitenc, U.; Bizjak, I.; Blyth, S.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Chao, Y.; Chen, A.; Cheon, B. G.; Chistov, R.; Choi, S. K.; Choi, Y.; Chuvikov, A.; Cole, S.; Dalseno, J.; Danilov, M.; Dash, M.; Dragic, J.; Drutskoy, A.; Eidelman, S.; Fratina, S.; Gabyshev, N.; Garmash, A.; Gershon, T.; Gokhroo, G.; Haba, J.; Hastings, N. C.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, W. S.; Hsiung, Y. B.; Iijima, T.; Imoto, A.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kang, Ju Hwan; Kang, J. S.; Kapusta, P.; Katayama, N.; Kawai, H.; Kawasaki, T.; Khan, H. R.; Kichimi, H.; Kim, H. J.; Kim, J. H.; Kim, S. K.; Kim, S. M.; Koppenburg, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kuo, C. C.; Kuzmin, A.; Kwon, Youngjoon; Lee, S. E.; Lee, S. H.; Lesiak, T.; Li, J.; Lin, S. W.; Liventsev, D.; Majumder, G.; Mandl, F.; Matsumoto, T.; Mitaroff, W.; Miyake, H.; Miyata, H.; Mohapatra, D.; Mori, T.; Nagamine, T.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nishida, S.; Ogawa, S.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S. L.; Ostrowicz, W.; Ozaki, H.; Pakhlov, P.; Palka, H.; Park, C. W.; Park, H.; Parslow, N.; Pestotnik, R.; Piilonen, L. E.; Sagawa, H.; Sakai, Y.; Schietinger, T.; Schneider, O.; Schönmeier, P.; Schümann, J.; Semenov, S.; Senyo, K.; Seuster, R.; Shibuya, H.; Singh, J. B.; Somov, A.; Soni, N.; Stamen, R.; Stanič, S.; Starič, M.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, S. Y.; Tajima, O.; Takasaki, F.; Tamura, N.; Tanaka, M.; Teramoto, Y.; Tian, X. C.; Uehara, S.; Uglov, T.; Ueno, K.; Uno, S.; Varner, G.; Varvell, K. E.; Villa, S.; Wang, C. C.; Wang, C. H.; Wang, M. Z.; Yabsley, B. D.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Yang, H.; Ying, J.; Zhang, C. C.; Zhang, J.; Zhang, L. M.; Zhang, Z. P.; Zhilich, V.; Žontar, D.; Zürcher, D.

In: Physical Review Letters, Vol. 94, No. 12, 122002, 01.04.2005.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Observation of an isotriplet of excited charmed baryons decaying to Λ c + π

AU - Mizuk, R.

AU - Abe, K.

AU - Aihara, H.

AU - Akatsu, M.

AU - Asano, Y.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Balagura, V.

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 - Browder, T. E.

AU - Chao, Y.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, S. K.

AU - Choi, Y.

AU - Chuvikov, A.

AU - Cole, S.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, M.

AU - Dragic, J.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Fratina, S.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Haba, J.

AU - Hastings, N. C.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hou, S.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Iijima, T.

AU - Imoto, A.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kang, Ju Hwan

AU - Kang, J. S.

AU - Kapusta, P.

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 - Koppenburg, P.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kuo, C. C.

AU - Kuzmin, A.

AU - Kwon, Youngjoon

AU - Lee, S. E.

AU - Lee, S. H.

AU - Lesiak, T.

AU - Li, J.

AU - Lin, S. W.

AU - Liventsev, D.

AU - Majumder, G.

AU - Mandl, F.

AU - Matsumoto, T.

AU - Mitaroff, W.

AU - Miyake, H.

AU - Miyata, H.

AU - Mohapatra, D.

AU - Mori, T.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nishida, S.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ostrowicz, W.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, C. W.

AU - Park, H.

AU - Parslow, N.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sagawa, H.

AU - Sakai, Y.

AU - Schietinger, T.

AU - Schneider, O.

AU - Schönmeier, P.

AU - Schümann, J.

AU - Semenov, S.

AU - Senyo, K.

AU - Seuster, R.

AU - Shibuya, H.

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 - Uehara, S.

AU - Uglov, T.

AU - Ueno, K.

AU - Uno, S.

AU - Varner, G.

AU - Varvell, K. E.

AU - Villa, S.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Yabsley, B. D.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yang, H.

AU - Ying, J.

AU - Zhang, C. C.

AU - Zhang, J.

AU - Zhang, L. M.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Žontar, D.

AU - Zürcher, D.

PY - 2005/4/1

Y1 - 2005/4/1

N2 - We report the observation of an isotriplet of excited charmed baryons, decaying into Λ c + π -, Λ c + π 0, and Λ c +π +. We measure the mass differences M(Λ c + π) -M(Λ c +) and widths to be 515.4 -3.1-6.0 +3.2+2.1 MeV/c 2, 61 -13-13 +18+22 MeV for the neutral state; 505.4 -4.6-2.0 +5.8+12.4 MeV/c 2, 62 -23-38 +37+52 MeV for the charged state; and 514.5 -3.1-4.9 +3.4+2.8 MeV/c 2, 75 -13-11 +18+12 MeV for the doubly charged state, where the uncertainties are statistical and systematic, respectively. These results are obtained from a 281 fb -1 data sample collected with the Belle detector near the υ(4S) resonance, at the KEKB asymmetric energy e +e - collider.

AB - We report the observation of an isotriplet of excited charmed baryons, decaying into Λ c + π -, Λ c + π 0, and Λ c +π +. We measure the mass differences M(Λ c + π) -M(Λ c +) and widths to be 515.4 -3.1-6.0 +3.2+2.1 MeV/c 2, 61 -13-13 +18+22 MeV for the neutral state; 505.4 -4.6-2.0 +5.8+12.4 MeV/c 2, 62 -23-38 +37+52 MeV for the charged state; and 514.5 -3.1-4.9 +3.4+2.8 MeV/c 2, 75 -13-11 +18+12 MeV for the doubly charged state, where the uncertainties are statistical and systematic, respectively. These results are obtained from a 281 fb -1 data sample collected with the Belle detector near the υ(4S) resonance, at the KEKB asymmetric energy e +e - collider.

UR - http://www.scopus.com/inward/record.url?scp=18144375587&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18144375587&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.94.122002

DO - 10.1103/PhysRevLett.94.122002

M3 - Article

VL - 94

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 12

M1 - 122002

ER -

Mizuk R, Abe K, Aihara H, Akatsu M, Asano Y, Aulchenko V et al. Observation of an isotriplet of excited charmed baryons decaying to Λ c + π. Physical Review Letters. 2005 Apr 1;94(12). 122002. https://doi.org/10.1103/PhysRevLett.94.122002

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