Observation of Transverse Λ/Λ¯ Hyperon Polarization in e+e− Annihilation at Belle

Y. Guan; A. Vossen; I. Adachi; K. Adamczyk; J. K. Ahn; H. Aihara; S. Al Said; D. M. Asner; H. Atmacan; V. Aulchenko; T. Aushev; R. Ayad; V. Babu; I. Badhrees; A. M. Bakich; V. Bansal; P. Behera; C. Beleño; M. Berger; V. Bhardwaj; B. Bhuyan; T. Bilka; J. Biswal; A. Bobrov; G. Bonvicini; A. Bozek; M. Bračko; T. E. Browder; L. Cao; D. Červenkov; P. Chang; V. Chekelian; A. Chen; B. G. Cheon; K. Chilikin; K. Cho; S.-K. Choi; Y. Choi; D. Cinabro; S. Cunliffe; N. Dash; S. Di Carlo; J. Dingfelder; Z. Doležal; T. V. Dong; Z. Drásal; S. Eidelman; D. Epifanov; J. E. Fast; T. Ferber; B. G. Fulsom; R. Garg; V. Gaur; N. Gabyshev; A. Garmash; M. Gelb; A. Giri; P. Goldenzweig; B. Golob; E. Guido; J. Haba; K. Hayasaka; H. Hayashii; S. Hirose; W.-S. Hou; T. Iijima; K. Inami; G. Inguglia; A. Ishikawa; R. Itoh; M. Iwasaki; W. W. Jacobs; I. Jaegle; H. B. Jeon; S. Jia; Y. Jin; D. Joffe; K. K. Joo; T. Julius; K. H. Kang; T. Kawasaki; C. Kiesling; D. Y. Kim; H. J. Kim; J. B. Kim; K. T. Kim; S. H. Kim; K. Kinoshita; P. Kodyš; S. Korpar; D. Kotchetkov; P. Križan; R. Kroeger; P. Krokovny; T. Kuhr; R. Kulasiri; A. Kuzmin; Y.-J. Kwon; J. S. Lange; I. S. Lee; S. C. Lee; L. K. Li; Y. B. Li; L. Li Gioi; J. Libby; D. Liventsev; M. Lubej; T. Luo; M. Masuda; T. Matsuda; D. Matvienko; M. Merola; H. Miyata; R. Mizuk; G. B. Mohanty; H. K. Moon; T. Mori; R. Mussa; M. Nakao; T. Nanut; K. J. Nath; Z. Natkaniec; M. Nayak; M. Niiyama; N. K. Nisar; S. Nishida; S. Ogawa; S. Okuno; H. Ono; P. Pakhlov; G. Pakhlova; B. Pal; S. Pardi; H. Park; S. Paul; T. K. Pedlar; R. Pestotnik; L. E. Piilonen; V. Popov; E. Prencipe; A. Rabusov; A. Rostomyan; G. Russo; D. Sahoo; Y. Sakai; M. Salehi; S. Sandilya; L. Santelj; T. Sanuki; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; R. Seidl; Y. Seino; K. Senyo; O. Seon; M. E. Sevior; V. Shebalin; C. P. Shen; T.-A. Shibata; J.-G. Shiu; F. Simon; A. Sokolov; E. Solovieva; M. Starič; J. F. Strube; M. Sumihama; T. Sumiyoshi; W. Sutcliffe; K. Suzuki; M. Takizawa; U. Tamponi; K. Tanida; F. Tenchini; M. Uchida; T. Uglov; Y. Unno; S. Uno; P. Urquijo; Y. Usov; S. E. Vahsen; C. Van Hulse; R. Van Tonder; G. Varner; A. Vinokurova; V. Vorobyev; E. Waheed; B. Wang; C. H. Wang; M.-Z. Wang; P. Wang; X. L. Wang; S. Watanuki; E. Widmann; E. Won; H. Ye; J. Yelton; J. H. Yin; C. Z. Yuan; Y. Yusa; Z. P. Zhang; V. Zhilich; V. Zhukova; V. Zhulanov; A. Zupanc; Belle Collaboration;Y. Guan;A. Vossen;I. Adachi;K. Adamczyk;J. K. Ahn;H. Aihara;S. Al Said;D. M. Asner;H. Atmacan;V. Aulchenko;T. Aushev;R. Ayad;V. Babu;I. Badhrees;A. M. Bakich;V. Bansal;P. Behera;C. Beleño;M. Berger;V. Bhardwaj;B. Bhuyan;T. Bilka;J. Biswal;A. Bobrov;G. Bonvicini;A. Bozek;M. Bračko;T. E. Browder;L. Cao;D. Červenkov;P. Chang;V. Chekelian;A. Chen;B. G. Cheon;K. Chilikin;K. Cho;S.-K. Choi;Y. Choi;D. Cinabro;S. Cunliffe;N. Dash;S. Di Carlo;J. Dingfelder;Z. Doležal;T. V. Dong;Z. Drásal;S. Eidelman;D. Epifanov;J. E. Fast;T. Ferber;B. G. Fulsom;R. Garg;V. Gaur;N. Gabyshev;A. Garmash;M. Gelb;A. Giri;P. Goldenzweig;B. Golob;E. Guido;J. Haba;K. Hayasaka;H. Hayashii;S. Hirose;W.-S. Hou;T. Iijima;K. Inami;G. Inguglia;A. Ishikawa;R. Itoh;M. Iwasaki;W. W. Jacobs;I. Jaegle;H. B. Jeon;S. Jia;Y. Jin;D. Joffe;K. K. Joo;T. Julius;K. H. Kang;T. Kawasaki;C. Kiesling;D. Y. Kim;H. J. Kim;J. B. Kim;K. T. Kim;S. H. Kim;K. Kinoshita;P. Kodyš;S. Korpar;D. Kotchetkov;P. Križan;R. Kroeger;P. Krokovny;T. Kuhr;R. Kulasiri;A. Kuzmin;Y.-J. Kwon;J. S. Lange;I. S. Lee;S. C. Lee;L. K. Li;Y. B. Li;L. Li Gioi;J. Libby;D. Liventsev;M. Lubej;T. Luo;M. Masuda;T. Matsuda;D. Matvienko;M. Merola;H. Miyata;R. Mizuk;G. B. Mohanty;H. K. Moon;T. Mori;R. Mussa;M. Nakao;T. Nanut;K. J. Nath;Z. Natkaniec;M. Nayak;M. Niiyama;N. K. Nisar;S. Nishida;S. Ogawa;S. Okuno;H. Ono;P. Pakhlov;G. Pakhlova;B. Pal;S. Pardi;H. Park;S. Paul;T. K. Pedlar;R. Pestotnik;L. E. Piilonen;V. Popov;E. Prencipe;A. Rabusov;A. Rostomyan;G. Russo;D. Sahoo;Y. Sakai;M. Salehi;S. Sandilya;L. Santelj;T. Sanuki;V. Savinov;O. Schneider;G. Schnell;C. Schwanda;R. Seidl;Y. Seino;K. Senyo;O. Seon;M. E. Sevior;V. Shebalin;C. P. Shen;T.-A. Shibata;J.-G. Shiu;F. Simon;A. Sokolov;E. Solovieva;M. Starič;J. F. Strube;M. Sumihama;T. Sumiyoshi;W. Sutcliffe;K. Suzuki;M. Takizawa;U. Tamponi;K. Tanida;F. Tenchini;M. Uchida;T. Uglov;Y. Unno;S. Uno;P. Urquijo;Y. Usov;S. E. Vahsen;C. Van Hulse;R. Van Tonder;G. Varner;A. Vinokurova;V. Vorobyev;E. Waheed;B. Wang;C. H. Wang;M.-Z. Wang;P. Wang;X. L. Wang;S. Watanuki;E. Widmann;E. Won;H. Ye;J. Yelton;J. H. Yin;C. Z. Yuan;Y. Yusa;Z. P. Zhang;V. Zhilich;V. Zhukova;V. Zhulanov;A. Zupanc;Belle Collaboration;

doi:10.1103/physrevlett.122.042001

Observation of Transverse Λ/Λ¯ Hyperon Polarization in e+e− Annihilation at Belle

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ID: 271608

2019

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Abstract

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We report the first observation of the spontaneous polarization of Λ and Λ¯ hyperons transverse to the production plane in e+e− annihilation, which is attributed to the effect arising from a polarizing fragmentation function. For inclusive Λ/Λ¯ production, we also report results with subtracted feed-down contributions from Σ0 and charm. This measurement uses a dataset of 800.4 fb−1 collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV. We observe a significant polarization that rises with the fractional energy carried by the Λ/Λ¯ hyperon.

Reference Key	collaboration2019physicalobservation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors	Y. Guan,A. Vossen,I. Adachi,K. Adamczyk,J. K. Ahn,H. Aihara,S. Al Said,D. M. Asner,H. Atmacan,V. Aulchenko,T. Aushev,R. Ayad,V. Babu,I. Badhrees,A. M. Bakich,V. Bansal,P. Behera,C. Beleño,M. Berger,V. Bhardwaj,B. Bhuyan,T. Bilka,J. Biswal,A. Bobrov,G. Bonvicini,A. Bozek,M. Bračko,T. E. Browder,L. Cao,D. Červenkov,P. Chang,V. Chekelian,A. Chen,B. G. Cheon,K. Chilikin,K. Cho,S.-K. Choi,Y. Choi,D. Cinabro,S. Cunliffe,N. Dash,S. Di Carlo,J. Dingfelder,Z. Doležal,T. V. Dong,Z. Drásal,S. Eidelman,D. Epifanov,J. E. Fast,T. Ferber,B. G. Fulsom,R. Garg,V. Gaur,N. Gabyshev,A. Garmash,M. Gelb,A. Giri,P. Goldenzweig,B. Golob,E. Guido,J. Haba,K. Hayasaka,H. Hayashii,S. Hirose,W.-S. Hou,T. Iijima,K. Inami,G. Inguglia,A. Ishikawa,R. Itoh,M. Iwasaki,W. W. Jacobs,I. Jaegle,H. B. Jeon,S. Jia,Y. Jin,D. Joffe,K. K. Joo,T. Julius,K. H. Kang,T. Kawasaki,C. Kiesling,D. Y. Kim,H. J. Kim,J. B. Kim,K. T. Kim,S. H. Kim,K. Kinoshita,P. Kodyš,S. Korpar,D. Kotchetkov,P. Križan,R. Kroeger,P. Krokovny,T. Kuhr,R. Kulasiri,A. Kuzmin,Y.-J. Kwon,J. S. Lange,I. S. Lee,S. C. Lee,L. K. Li,Y. B. Li,L. Li Gioi,J. Libby,D. Liventsev,M. Lubej,T. Luo,M. Masuda,T. Matsuda,D. Matvienko,M. Merola,H. Miyata,R. Mizuk,G. B. Mohanty,H. K. Moon,T. Mori,R. Mussa,M. Nakao,T. Nanut,K. J. Nath,Z. Natkaniec,M. Nayak,M. Niiyama,N. K. Nisar,S. Nishida,S. Ogawa,S. Okuno,H. Ono,P. Pakhlov,G. Pakhlova,B. Pal,S. Pardi,H. Park,S. Paul,T. K. Pedlar,R. Pestotnik,L. E. Piilonen,V. Popov,E. Prencipe,A. Rabusov,A. Rostomyan,G. Russo,D. Sahoo,Y. Sakai,M. Salehi,S. Sandilya,L. Santelj,T. Sanuki,V. Savinov,O. Schneider,G. Schnell,C. Schwanda,R. Seidl,Y. Seino,K. Senyo,O. Seon,M. E. Sevior,V. Shebalin,C. P. Shen,T.-A. Shibata,J.-G. Shiu,F. Simon,A. Sokolov,E. Solovieva,M. Starič,J. F. Strube,M. Sumihama,T. Sumiyoshi,W. Sutcliffe,K. Suzuki,M. Takizawa,U. Tamponi,K. Tanida,F. Tenchini,M. Uchida,T. Uglov,Y. Unno,S. Uno,P. Urquijo,Y. Usov,S. E. Vahsen,C. Van Hulse,R. Van Tonder,G. Varner,A. Vinokurova,V. Vorobyev,E. Waheed,B. Wang,C. H. Wang,M.-Z. Wang,P. Wang,X. L. Wang,S. Watanuki,E. Widmann,E. Won,H. Ye,J. Yelton,J. H. Yin,C. Z. Yuan,Y. Yusa,Z. P. Zhang,V. Zhilich,V. Zhukova,V. Zhulanov,A. Zupanc,Belle Collaboration;Y. Guan;A. Vossen;I. Adachi;K. Adamczyk;J. K. Ahn;H. Aihara;S. Al Said;D. M. Asner;H. Atmacan;V. Aulchenko;T. Aushev;R. Ayad;V. Babu;I. Badhrees;A. M. Bakich;V. Bansal;P. Behera;C. Beleño;M. Berger;V. Bhardwaj;B. Bhuyan;T. Bilka;J. Biswal;A. Bobrov;G. Bonvicini;A. Bozek;M. Bračko;T. E. Browder;L. Cao;D. Červenkov;P. Chang;V. Chekelian;A. Chen;B. G. Cheon;K. Chilikin;K. Cho;S.-K. Choi;Y. Choi;D. Cinabro;S. Cunliffe;N. Dash;S. Di Carlo;J. Dingfelder;Z. Doležal;T. V. Dong;Z. Drásal;S. Eidelman;D. Epifanov;J. E. Fast;T. Ferber;B. G. Fulsom;R. Garg;V. Gaur;N. Gabyshev;A. Garmash;M. Gelb;A. Giri;P. Goldenzweig;B. Golob;E. Guido;J. Haba;K. Hayasaka;H. Hayashii;S. Hirose;W.-S. Hou;T. Iijima;K. Inami;G. Inguglia;A. Ishikawa;R. Itoh;M. Iwasaki;W. W. Jacobs;I. Jaegle;H. B. Jeon;S. Jia;Y. Jin;D. Joffe;K. K. Joo;T. Julius;K. H. Kang;T. Kawasaki;C. Kiesling;D. Y. Kim;H. J. Kim;J. B. Kim;K. T. Kim;S. H. Kim;K. Kinoshita;P. Kodyš;S. Korpar;D. Kotchetkov;P. Križan;R. Kroeger;P. Krokovny;T. Kuhr;R. Kulasiri;A. Kuzmin;Y.-J. Kwon;J. S. Lange;I. S. Lee;S. C. Lee;L. K. Li;Y. B. Li;L. Li Gioi;J. Libby;D. Liventsev;M. Lubej;T. Luo;M. Masuda;T. Matsuda;D. Matvienko;M. Merola;H. Miyata;R. Mizuk;G. B. Mohanty;H. K. Moon;T. Mori;R. Mussa;M. Nakao;T. Nanut;K. J. Nath;Z. Natkaniec;M. Nayak;M. Niiyama;N. K. Nisar;S. Nishida;S. Ogawa;S. Okuno;H. Ono;P. Pakhlov;G. Pakhlova;B. Pal;S. Pardi;H. Park;S. Paul;T. K. Pedlar;R. Pestotnik;L. E. Piilonen;V. Popov;E. Prencipe;A. Rabusov;A. Rostomyan;G. Russo;D. Sahoo;Y. Sakai;M. Salehi;S. Sandilya;L. Santelj;T. Sanuki;V. Savinov;O. Schneider;G. Schnell;C. Schwanda;R. Seidl;Y. Seino;K. Senyo;O. Seon;M. E. Sevior;V. Shebalin;C. P. Shen;T.-A. Shibata;J.-G. Shiu;F. Simon;A. Sokolov;E. Solovieva;M. Starič;J. F. Strube;M. Sumihama;T. Sumiyoshi;W. Sutcliffe;K. Suzuki;M. Takizawa;U. Tamponi;K. Tanida;F. Tenchini;M. Uchida;T. Uglov;Y. Unno;S. Uno;P. Urquijo;Y. Usov;S. E. Vahsen;C. Van Hulse;R. Van Tonder;G. Varner;A. Vinokurova;V. Vorobyev;E. Waheed;B. Wang;C. H. Wang;M.-Z. Wang;P. Wang;X. L. Wang;S. Watanuki;E. Widmann;E. Won;H. Ye;J. Yelton;J. H. Yin;C. Z. Yuan;Y. Yusa;Z. P. Zhang;V. Zhilich;V. Zhukova;V. Zhulanov;A. Zupanc;Belle Collaboration;
Journal	physical review letters
Year	2019
DOI	10.1103/physrevlett.122.042001 Searching for DOI...
URL	https://sciprofiles.com/publication/view/a1e43590afbcd0603491328092c490a0 https://doi.org/10.1103/physrevlett.122.042001
Keywords	polarization function hyperons transverse annihilation belle Λ/Λ plane subtracted

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