Search for charmed baryons in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup><mml:mi>η</mml:mi></mml:math> system and measurement of the branching fractions of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mn>2880</mml:mn><mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mo>+</mml:mo></mml:msup></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mn>2940</mml:mn><mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mo>+</mml:mo></mml:msup></mml:math> decaying to <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup><mml:mi>η</mml:mi></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:msup><mml:mi>D</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> relative to <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">Σ</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mn>2455</mml:mn><mml:mo stretchy="false">)</mml:mo><mml:mi>π</mml:mi></mml:math>-Reference-Cited by-同舟云学术

Search for charmed baryons in the Λc+η system and measurement of the branching fractions of Λc(2880)+ and Λc(2940)+ decaying to Λc+η and pD0 relative to Σc(2455)π

Published:2024-08-27 Issue:3 Volume:110 Page:
ISSN:2470-0010
Container-title:Physical Review D
language:en
Short-container-title:Phys. Rev. D

Author:

Li S. X.^ORCID,Shen C. P.^ORCID,Adachi I.^ORCID,Ahn J. K.^ORCID,Aihara H.^ORCID,Asner D. M.^ORCID,Atmacan H.^ORCID,Aushev T.^ORCID,Ayad R.^ORCID,Banerjee Sw.^ORCID,Belous K.^ORCID,Bennett J.^ORCID,Bessner M.^ORCID,Bilka T.^ORCID,Biswas D.^ORCID,Bodrov D.^ORCID,Bozek A.^ORCID,Bračko M.^ORCID,Branchini P.^ORCID,Browder T. E.^ORCID,Budano A.^ORCID,Campajola M.^ORCID,Chang M.-C.^ORCID,Cheon B. G.^ORCID,Chilikin K.^ORCID,Cho H. E.^ORCID,Cho K.^ORCID,Choi S.-K.^ORCID,Choi Y.^ORCID,Choudhury S.^ORCID,Dash N.^ORCID,De Nardo G.^ORCID,De Pietro G.^ORCID,Dhamija R.^ORCID,Dingfelder J.^ORCID,Doležal Z.^ORCID,Dong T. V.^ORCID,Dubey S.^ORCID,Ecker P.^ORCID,Ferber T.^ORCID,Fulsom B. G.^ORCID,Gaur V.^ORCID,Garmash A.^ORCID,Goldenzweig P.^ORCID,Graziani E.^ORCID,Grube B.^ORCID,Guan Y.^ORCID,Gudkova K.^ORCID,Hadjivasiliou C.^ORCID,Hsu C.-L.^ORCID,Ipsita N.^ORCID,Itoh R.^ORCID,Iwasaki M.^ORCID,Jacobs W. W.^ORCID,Ji Q. P.^ORCID,Jia S.^ORCID,Jin Y.^ORCID,Joo K. K.^ORCID,Kiesling C.^ORCID,Kim D. Y.^ORCID,Kim Y. J.^ORCID,Kinoshita K.^ORCID,Kodyš P.^ORCID,Korobov A.^ORCID,Korpar S.^ORCID,Kovalenko E.^ORCID,Križan P.^ORCID,Krokovny P.^ORCID,Kuhr T.^ORCID,Kumar R.^ORCID,Kumara K.^ORCID,Kwon Y.-J.^ORCID,Li L. K.^ORCID,Li Y.^ORCID,Li Y. B.^ORCID,Liventsev D.^ORCID,Masuda M.^ORCID,Maurya S. K.^ORCID,Meier F.^ORCID,Merola M.^ORCID,Miyabayashi K.^ORCID,Mizuk R.^ORCID,Mussa R.^ORCID,Nakano T.^ORCID,Nakao M.^ORCID,Natochii A.^ORCID,Nayak M.^ORCID,Nishida S.^ORCID,Pakhlov P.^ORCID,Pakhlova G.^ORCID,Pardi S.^ORCID,Park J.^ORCID,Park S.-H.^ORCID,Patra S.^ORCID,Paul S.^ORCID,Pedlar T. K.^ORCID,Pestotnik R.^ORCID,Piilonen L. E.^ORCID,Podobnik T.^ORCID,Prencipe E.^ORCID,Prim M. T.^ORCID,Russo G.^ORCID,Sandilya S.^ORCID,Savinov V.^ORCID,Schnell G.^ORCID,Schwanda C.^ORCID,Seino Y.^ORCID,Senyo K.^ORCID,Shiu J.-G.^ORCID,Solovieva E.^ORCID,Starič M.^ORCID,Sumihama M.^ORCID,Takizawa M.^ORCID,Tamponi U.^ORCID,Tanida K.^ORCID,Tenchini F.^ORCID,Uchida M.^ORCID,Uglov T.^ORCID,Uno S.^ORCID,Wang E.^ORCID,Won E.^ORCID,Yabsley B. D.^ORCID,Yan W.^ORCID,Yelton J.^ORCID,Yin J. H.^ORCID,Yuan L.^ORCID,Zhilich V.^ORCID,

Abstract

We search for excited charmed baryons in the Λc+η system using a data sample corresponding to an integrated luminosity of 980 fb−1. The data were collected by the Belle detector at the KEKB e+e− asymmetric-energy collider. No significant signals are found in the Λc+η mass spectrum, including the known Λc(2880)+ and Λc(2940)+. Clear Λc(2880)+ and Λc(2940)+ signals are observed in the pD0 mass spectrum. We set upper limits at 90% credibility level on ratios of branching fractions of Λc(2880)+ and Λc(2940)+ decaying to Λc+η relative to Σc(2455)π of <0.13 for the Λc(2880)+ and <1.11 for the Λc(2940)+. We measure ratios of branching fractions of Λc(2880)+ and Λc(2940)+ decaying to pD0 relative to Σc(2455)π of 0.75±0.03(stat)±0.07(syst) for the Λc(2880)+ and 3.59±0.21(stat)±0.56(syst) for the Λc(2940)+.

Published by the American Physical Society

2024

Funder

Ministry of Education, Culture, Sports, Science and Technology

Japan Society for the Promotion of Science

Nagoya University

Australian Research Council

Bundesministerium für Bildung, Wissenschaft und Forschung

Austrian Science Fund

National Key Research and Development Program of China

National Natural Science Foundation of China

Natural Science Foundation of Shandong Province

Grantová Agentura České Republiky

H2020 European Research Council

European Research Council

Carl-Zeiss-Stiftung

Deutsche Forschungsgemeinschaft

Volkswagen Foundation

Department of Atomic Energy, Government of India

Department of Science and Technology, Ministry of Science and Technology, India

University of Petroleum and Energy Studies

Istituto Nazionale di Fisica Nucleare Sezione di Padova

National Research Foundation of Korea

Korea Institute of Science and Technology Information

Korea Research Environment Open Network

Ministerstwo Edukacji i Nauki

Narodowe Centrum Nauki

Ministry of Science and Higher Education of the Russian Federation

National Research University Higher School of Economics

University of Tabuk

Javna Agencija za Raziskovalno Dejavnost RS

Ikerbasque, Basque Foundation for Science

Ministerio de Ciencia e Innovación

Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung

Ministry of Education

National Science and Technology Council

U.S. Department of Energy

National Science Foundation

High Energy Accelerator Research Organization

Pacific Northwest National Laboratory

Environmental Molecular Sciences Laboratory

National Institute of Informatics

Excellence Cluster Universe

Radiation Science Research Institute

Foreign Large-size Research Facility Application Supporting Project

GLORIAD

KEKB Group

Science Information NETwork 6

Publisher

American Physical Society (APS)

Link

http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.110.032021/fulltext

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