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Evidence for B 0 → p Σ ¯ 0 π - at Belle

Chang, C. -Y. (ORCID:0000000316141708)·Wang, M. -Z. (ORCID:0000000209798341)·Adachi, I. (ORCID:0000000322870173)·Aihara, H. (ORCID:0000000219075964)·Said, S. Al (ORCID:0000000248953869)·Asner, D. M. (ORCID:0000000215865790)·Atmacan, H. (ORCID:000000032435501X)·Aushev, T. (ORCID:0000000263477055)·Ayad, R. (ORCID:0000000334669290)·Babu, V. (ORCID:0000000304196912)·Banerjee, Sw (ORCID:0000000188522409)·Bauer, M. (ORCID:0000000209537387)·Behera, P. (ORCID:0000000215272266)·Belous, K. (ORCID:0000000300142589)·Bennett, J. (ORCID:0000000254402668)·Bernlochner, F. (ORCID:0000000181532719)·Bessner, M. (ORCID:0000000317760439)·Bilka, T. (ORCID:0000000314496986)·Biswas, D. (ORCID:0000000275433471)·Bobrov, A. (ORCID:0000000157358386)·Bodrov, D. (ORCID:0000000152794787)·Bonvicini, G. (ORCID:0000000348617918)·Borah, J. (ORCID:0000000329901913)·Bozek, A. (ORCID:0000000259151319)·Bračko, M. (ORCID:0000000224950524)·Branchini, P. (ORCID:0000000222709673)·Browder, T. E. (ORCID:0000000173579007)·Budano, A. (ORCID:0000000208561131)·Campajola, M. (ORCID:0000000325187134)·Cao, L. (ORCID:0000000183325668)·Červenkov, D. (ORCID:000000021865741X)·Chang, M. -C. (ORCID:0000000286506058)·Cheon, B. G. (ORCID:0000000288034429)·Chilikin, K. (ORCID:0000000176202053)·Cho, H. E. (ORCID:0000000270083759)·Cho, K. (ORCID:0000000317057399)·Cho, S. -J. (ORCID:0000000216735664)·Choi, S. -K. (ORCID:0000000327478277)·Choi, Y. (ORCID:0000000334997948)·Choudhury, S. (ORCID:0000000198410216)·Cinabro, D. (ORCID:0000000173476585)·Das, S. (ORCID:000000016857966X)·De Nardo, G. (ORCID:0000000220479675)·De Pietro, G. (ORCID:000000018442107X)·Dhamija, R. (ORCID:0000000170523163)·Di Capua, F. (ORCID:0000000190765936)·Doležal, Z. (ORCID:0000000256623675)·Dong, T. V. (ORCID:0000000330431939)·Dubey, S. (ORCID:0000000213450970)·Ecker, P. (ORCID:0000000268176868)·Ferber, T. (ORCID:0000000268490427)·Ferlewicz, D. (ORCID:0000000243741234)·Fulsom, B. G. (ORCID:0000000258629739)·Gaur, V. (ORCID:0000000288806134)·Garmash, A. (ORCID:0000000325991405)·Giri, A. (ORCID:0000000288950128)·Goldenzweig, P. (ORCID:000000018785847X)·Graziani, E. (ORCID:0000000186025652)·Gu, T. (ORCID:0000000214706536)·Guan, Y. (ORCID:0000000255412278)·Gudkova, K. (ORCID:0000000258583187)·Hadjivasiliou, C. (ORCID:0000000222340001)·Halder, S. (ORCID:000000026280494X)·Hara, T. (ORCID:0000000243210417)·Hayasaka, K. (ORCID:000000026347433X)·Hayashii, H. (ORCID:0000000251385903)·Hazra, S. (ORCID:0000000169549593)·Hedges, M. T. (ORCID:0000000165041872)·Herrmann, D. (ORCID:0000000197729989)·Hou, W. -S. (ORCID:0000000242605118)·Hsu, C. -L. (ORCID:000000021641430X)·Inami, K. (ORCID:0000000327657072)·Ipsita, N. (ORCID:0000000229273366)·Ishikawa, A. (ORCID:0000000235615633)·Itoh, R. (ORCID:0000000315900266)·Iwasaki, M. (ORCID:0000000294027559)·Iwasaki, Y. (ORCID:0000000172612557)·Jacobs, W. W. (ORCID:0000000299966336)·Jia, S. (ORCID:0000000181768545)·Jin, Y. (ORCID:0000000273230830)·Joo, K. K. (ORCID:0000000255150087)·Kaliyar, A. B. (ORCID:000000022211619X)·Kawasaki, T. (ORCID:0000000240895238)·Kiesling, C. (ORCID:000000022209535X)·Kim, C. H. (ORCID:0000000257437698)·Kim, D. Y. (ORCID:0000000181259070)·Kim, K. -H. (ORCID:0000000246591112)·Kim, Y. -K. (ORCID:0000000296958103)·Kinoshita, K. (ORCID:0000000171754182)·Kodyš, P. (ORCID:0000000286442349)·Konno, T. (ORCID:0000000324878080)·Korobov, A. (ORCID:0000000159598172)·Korpar, S. (ORCID:0000000309710968)·Kovalenko, E. (ORCID:0000000180841931)·Križan, P. (ORCID:0000000249677675)·Krokovny, P. (ORCID:0000000212364667)·Kuhr, T. (ORCID:0000000162518049)·Kumar, M. (ORCID:0000000266279708)·Kumara, K. (ORCID:0000000315725365)·Kuzmin, A. (ORCID:0000000270115044)
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Abstract

We search for the B 0 → p$\overline{Σ}$ 0 π - decay with $\overline{Σ}$ 0 → $\overline{Λ}$ γ, where the γ is not measured, using a data sample corresponding to an integrated luminosity of 711 fb -1 which contains 772 × 10 6 B$\overline{B}$ pairs, collected around the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e + e - collider. We measure for the first time the B 0 → p$\overline{Σ}$ 0 π - branching fraction to be $\mathscr{B}$(B 0 → p$\overline{Σ}$ 0 π - ) = $({1.17}_{-0.40}^{+0.43} (stat) ± 0.07(syst))$ X 10 -6 with a significance of 3.0σ. We simultaneously measure the branching fraction for the related channel B 0 → p$\overline{Λ}$ π - with much improved precision.

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Chang, C. -Y. (ORCID:0000000316141708), Wang, M. -Z. (ORCID:0000000209798341), Adachi, I. (ORCID:0000000322870173), Aihara, H. (ORCID:0000000219075964), Said, S. Al (ORCID:0000000248953869), Asner, D. M. (ORCID:0000000215865790), Atmacan, H. (ORCID:000000032435501X), Aushev, T. (ORCID:0000000263477055), Ayad, R. (ORCID:0000000334669290), Babu, V. (ORCID:0000000304196912), Banerjee, Sw (ORCID:0000000188522409), Bauer, M. (ORCID:0000000209537387), Behera, P. (ORCID:0000000215272266), Belous, K. (ORCID:0000000300142589), Bennett, J. (ORCID:0000000254402668), Bernlochner, F. (ORCID:0000000181532719), Bessner, M. (ORCID:0000000317760439), Bilka, T. (ORCID:0000000314496986), Biswas, D. (ORCID:0000000275433471), Bobrov, A. (ORCID:0000000157358386), Bodrov, D. (ORCID:0000000152794787), Bonvicini, G. (ORCID:0000000348617918), Borah, J. (ORCID:0000000329901913), Bozek, A. (ORCID:0000000259151319), Bračko, M. (ORCID:0000000224950524), Branchini, P. (ORCID:0000000222709673), Browder, T. E. (ORCID:0000000173579007), Budano, A. (ORCID:0000000208561131), Campajola, M. (ORCID:0000000325187134), Cao, L. (ORCID:0000000183325668), Červenkov, D. (ORCID:000000021865741X), Chang, M. -C. (ORCID:0000000286506058), Cheon, B. G. (ORCID:0000000288034429), Chilikin, K. (ORCID:0000000176202053), Cho, H. E. (ORCID:0000000270083759), Cho, K. (ORCID:0000000317057399), Cho, S. -J. (ORCID:0000000216735664), Choi, S. -K. (ORCID:0000000327478277), Choi, Y. (ORCID:0000000334997948), Choudhury, S. (ORCID:0000000198410216), Cinabro, D. (ORCID:0000000173476585), Das, S. (ORCID:000000016857966X), De Nardo, G. (ORCID:0000000220479675), De Pietro, G. (ORCID:000000018442107X), Dhamija, R. (ORCID:0000000170523163), Di Capua, F. (ORCID:0000000190765936), Doležal, Z. (ORCID:0000000256623675), Dong, T. V. (ORCID:0000000330431939), Dubey, S. (ORCID:0000000213450970), Ecker, P. (ORCID:0000000268176868), Ferber, T. (ORCID:0000000268490427), Ferlewicz, D. (ORCID:0000000243741234), Fulsom, B. G. (ORCID:0000000258629739), Gaur, V. (ORCID:0000000288806134), Garmash, A. (ORCID:0000000325991405), Giri, A. (ORCID:0000000288950128), Goldenzweig, P. (ORCID:000000018785847X), Graziani, E. (ORCID:0000000186025652), Gu, T. (ORCID:0000000214706536), Guan, Y. (ORCID:0000000255412278), Gudkova, K. (ORCID:0000000258583187), Hadjivasiliou, C. (ORCID:0000000222340001), Halder, S. (ORCID:000000026280494X), Hara, T. (ORCID:0000000243210417), Hayasaka, K. (ORCID:000000026347433X), Hayashii, H. (ORCID:0000000251385903), Hazra, S. (ORCID:0000000169549593), Hedges, M. T. (ORCID:0000000165041872), Herrmann, D. (ORCID:0000000197729989), Hou, W. -S. (ORCID:0000000242605118), Hsu, C. -L. (ORCID:000000021641430X), Inami, K. (ORCID:0000000327657072), Ipsita, N. (ORCID:0000000229273366), Ishikawa, A. (ORCID:0000000235615633), Itoh, R. (ORCID:0000000315900266), Iwasaki, M. (ORCID:0000000294027559), Iwasaki, Y. (ORCID:0000000172612557), Jacobs, W. W. (ORCID:0000000299966336), Jia, S. (ORCID:0000000181768545), Jin, Y. (ORCID:0000000273230830), Joo, K. K. (ORCID:0000000255150087), Kaliyar, A. B. (ORCID:000000022211619X), Kawasaki, T. (ORCID:0000000240895238), Kiesling, C. (ORCID:000000022209535X), Kim, C. H. (ORCID:0000000257437698), Kim, D. Y. (ORCID:0000000181259070), Kim, K. -H. (ORCID:0000000246591112), Kim, Y. -K. (ORCID:0000000296958103), Kinoshita, K. (ORCID:0000000171754182), Kodyš, P. (ORCID:0000000286442349), Konno, T. (ORCID:0000000324878080), Korobov, A. (ORCID:0000000159598172), Korpar, S. (ORCID:0000000309710968), Kovalenko, E. (ORCID:0000000180841931), Križan, P. (ORCID:0000000249677675), Krokovny, P. (ORCID:0000000212364667), Kuhr, T. (ORCID:0000000162518049), Kumar, M. (ORCID:0000000266279708), Kumara, K. (ORCID:0000000315725365), Kuzmin, A. (ORCID:0000000270115044). 2023-09-22. Evidence for B 0 → p Σ ¯ 0 π - at Belle. https://doi.org/10.1103/physrevd.108.052011

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