Measurement of the branching fraction of $Λ_c^+ \to p ω$ decay at Belle

Li, S. X.; Li, L. K.; Shen, C. P.; Adachi, I.; Aihara, H.; Said, S. Al; Asner, D. M.; Aushev, T.; Behera, P.; Belous, K.; Bennett, J.; Bessner, M.; Bhardwaj, V.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bobrov, A.; Bodrov, D.; Borah, J.; Bozek, A.; Bračko, M.; Branchini, P.; Browder, T. E.; Budano, A.; Campajola, M.; Červenkov, D.; Chang, M. -C.; Chang, P.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, H. E.; Cho, K.; Cho, S. -J.; Choi, S. -K.; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; Das, S.; De Nardo, G.; De Pietro, G.; Dhamija, R.; Di Capua, F.; Doležal, Z.; Dong, T. V.; Epifanov, D.; Ferber, T.; Fulsom, B. G.; Garg, R.; Gaur, V.; Gabyshev, N.; Giri, A.; Goldenzweig, P.; Golob, B.; Graziani, E.; Gu, T.; Guan, Y.; Gudkova, K.; Hadjivasiliou, C.; Halder, S.; Hartbrich, O.; Hayasaka, K.; Hayashii, H.; Hou, W. -S.; Hsu, C. -L.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jia, S.; Jin, Y.; Joo, K. K.; Kaliyar, A. B.; Kang, K. H.; Kato, Y.; Kichimi, H.; Kim, C. H.; Kim, D. Y.; Kim, K. -H.; Kim, K. T.; Kim, Y. -K.; Kinoshita, K.; Kodyš, P.; Konno, T.; Korobov, A.; Korpar, S.; Kovalenko, E.; Križan, P.; Kroeger, R.; Krokovny, P.; Kumar, R.; Kumara, K.; Kwon, Y. -J.; Lai, Y. -T.; Lange, J. S.; Laurenza, M.; Lee, S. C.; Li, J.; Li, Y. B.; Gioi, L. Li; Libby, J.; Lieret, K.; Liventsev, D.; MacQueen, C.; Masuda, M.; Matsuda, T.; Merola, M.; Miyabayashi, K.; Mizuk, R.; Mussa, R.; Nakao, M.; Natochii, A.; Nayak, L.; Nayak, M.; Niiyama, M.; Nisar, N. K.; Nishida, S.; Ogawa, S.; Ono, H.; Oskin, P.; Pakhlov, P.; Pakhlova, G.; Pang, T.; Park, H.; Park, S. -H.; Patra, S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Podobnik, T.; Popov, V.; Prencipe, E.; Prim, M. T.; Röhrken, M.; Rostomyan, A.; Rout, N.; Russo, G.; Sahoo, D.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Sharma, C.; Shiu, J. -G.; Simon, F.; Sokolov, A.; Solovieva, E.; Starič, M.; Stottler, Z. S.; Strube, J. F.; Sumihama, M.; Sumiyoshi, T.; Sutcliffe, W.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, K.; Uno, S.; Urquijo, P.; Usov, Y.; Vahsen, S. E.; Van Tonder, R.; Varner, G.; Vinokurova, A.; Waheed, E.; Wang, C. H.; Wang, E.; Wang, M. -Z.; Wang, P.; Won, E.; Yabsley, B. D.; Yan, W.; Yang, S. B.; Ye, H.; Yelton, J.; Yin, J. H.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.

doi:10.48550/arxiv.2108.11301

Cited by 3 publications

(3 citation statements)

References 21 publications

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“…Subsequently, the measurements of lifetime and production rate of Ξ ++ cc and the observations of other decay modes were performed [3][4][5][6][7][8][9]. On the other hand, many new measurements of singly charmed baryon decays were performed by Belle (II) [10][11][12][13][14], BESIII [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] and LHCb [31][32][33]. Motivated by the experimental progress, great theoretical efforts are devoted to the study of doubly and singly charmed baryon weak decays.…”

Section: Introductionmentioning

confidence: 99%

Generation of SU(3) sum rule for charmed baryon decay

Wang

2022

J. High Energ. Phys.

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Flavor SU(3) symmetry is a powerful tool to analyze charmed baryon decays. In this work, we propose an approach to generate SU(3) sum rules for the singly and doubly charmed baryon decays without writing the Wigner-Eckhart invariants explicitly. The SU(3) sum rules are computed routinely in several master formulas. Hundreds of SU(3) sum rules are found to serve as test of the flavor symmetry in the charmed baryon decays.

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Section: Introductionmentioning

confidence: 99%

Generation of SU(3) sum rule for charmed baryon decay

Wang

2022

J. High Energ. Phys.

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“…In recent years, more and more charmed baryon decay channels have been reanalyzed and discovered [1][2][3][4][5][6][7][8]. The most observations come form B c → BM , where B c denotes the anti-triplet charmed baryon state, and B(M ) the octet baryon (meson).…”

Section: Introductionmentioning

confidence: 99%

Equivalent SU(3)f approaches for two-body anti-triplet charmed baryon decays

Hsiao

Wang

Zhao

2022

J. High Energ. Phys.

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For the two-body Bc → BM decays, where Bc denotes the anti-triplet charm baryon and B(M) the octet baryon (meson), there exist two theoretical studies based on the SU(3) flavor [SU(3)f] symmetry. One is the irreducible SU(3)f approach (IRA). In the irreducible SU(3)f representation, the effective Hamiltonian related to the initial and final states forms the amplitudes for Bc → BM. The other is the topological-diagram approach (TDA), where the W-boson emission and W-boson exchange topologies are drawn and parameterized for the decays. As required by the group theoretical consideration, we present the same number of the IRA and TDA amplitudes. We can hence relate the two kinds of the amplitudes, and demonstrate the equivalence of the two SU(3)f approaches. We find a specific W-boson exchange topology only contributing to $$ {\Xi}_c^0 $$ Ξ c 0 →BM. Denoted by EM, it plays a key role in explaining $$ \mathcal{B} $$ B ($$ {\Xi}_c^0 $$ Ξ c 0 → Λ0$$ {K}_S^0 $$ K S 0 , Σ0$$ {K}_S^0 $$ K S 0 , Σ+K−). We consider that $$ {\Lambda}_c^{+} $$ Λ c + → nπ+ and $$ {\Lambda}_c^{+} $$ Λ c + → pπ0 proceed through the constructive and destructive interfering effects, respectively, which leads to $$ \mathcal{B} $$ B ($$ {\Lambda}_c^{+} $$ Λ c + → nπ+) » $$ \mathcal{B} $$ B ($$ {\Lambda}_c^{+} $$ Λ c + → pπ0) in agreement with the data. With the exact and broken SU(3)f symmetries, we predict the branching fractions of Bc→BM to be tested by future measurements.

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“…In recent years, more and more charmed baryon decay channels have been reanalyzed and newly discovered [1][2][3][4][5]. For interpretation, theoretical attempts have been given, such as the factorization, pole model, quark model, and final state interaction [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Equivalent $SU(3)_f$ approaches for two-body anti-triplet charmed baryon decays

Hsiao,

Wang,

Zhao

2021

Preprint

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For the two-body anti-triplet charmed baryon decays, there exist two theoretical analyses based on the SU (3) flavor (SU (3) f ) symmetry. One is the irreducible SU (3) f approach (IRA), which depends on the irreducible SU (3) f representation of the effective Hamiltonian. The other is the topological-diagram approach (TDA), where the decays are drawn to consist of W -boson emission and W -boson exchange topologies. We demonstrate that IRA and TDA can be equivalent, such that the IRA parameters can be seen to mix with the TDA topologies. The current observationsIt is found that a specific W -boson exchange topologydenoted by E M only appears in Ξ 0 c → BM , by which we explain B(Ξ 0 c → Λ 0 K0 ). In addition, we predict B(Ξ 0 c → Σ 0 K0 , Σ + K − ) = (5.8 +4.7 −3.5 , 5.4 +4.9 −3.4 ) × 10 −3 for future measurements to test if E M can be a significant contribution.

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Measurement of the branching fraction of $Λ_c^+ \to p ω$ decay at Belle

Cited by 3 publications

References 21 publications

Generation of SU(3) sum rule for charmed baryon decay

Generation of SU(3) sum rule for charmed baryon decay

Equivalent SU(3)f approaches for two-body anti-triplet charmed baryon decays

Equivalent $SU(3)_f$ approaches for two-body anti-triplet charmed baryon decays

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