Determination of quantum numbers for several excited charmed mesons observed in  B−→D*+π−π−  decays

descriptionPublicationkeyboard_double_arrow_right Article 20 Feb 2020 Italy English Publisher:American Physical Society (APS)Journal:Physical Review D, volume 101 (issn: 2470-0010, eissn: 2470-0029,

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Authors: R. Aaij; C. Abellán Beteta; T. Ackernley; B. Adeva; M. Adinolfi; H. Afsharnia; C. A. Aidala; +193 Authors

R. Aaij; C. Abellán Beteta; T. Ackernley; B. Adeva; M. Adinolfi; H. Afsharnia; C. A. Aidala; S. Aiola; Z. Ajaltouni; S. Akar; P. Albicocco; J. Albrecht; F. Alessio; M. Alexander; A. Alfonso Albero; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves; S. Amato; Y. Amhis; L. An; L. Anderlini; G. Andreassi; M. Andreotti; F. Archilli; J. Arnau Romeu; A. Artamonov; M. Artuso; K. Arzymatov; E. Aslanides; M. Atzeni; B. Audurier; S. Bachmann; J. J. Back; S. Baker; V. Balagura; W. Baldini; A. Baranov; R. J. Barlow; S. Barsuk; W. Barter; M. Bartolini; F. Baryshnikov; G. Bassi; V. Batozskaya; B. Batsukh; A. Battig; V. Battista; A. Bay; M. Becker; F. Bedeschi; I. Bediaga; A. Beiter; L. J. Bel; V. Belavin; S. Belin; N. Beliy; V. Bellee; K. Belous; I. Belyaev; G. Bencivenni; E. Ben-Haim; S. Benson; S. Beranek; A. Berezhnoy; R. Bernet; D. Berninghoff; H. C. Bernstein; E. Bertholet; A. Bertolin; C. Betancourt; F. Betti; M. O. Bettler; Ia. Bezshyiko; S. Bhasin; J. Bhom; M. S. Bieker; S. Bifani; P. Billoir; A. Birnkraut; A. Bizzeti; M. Bjørn; M. P. Blago; T. Blake; F. Blanc; S. Blusk; D. Bobulska; V. Bocci; O. Boente Garcia; T. Boettcher; A. Boldyrev; A. Bondar; N. Bondar; S. Borghi; M. Borisyak; M. Borsato; J. T. Borsuk; M. Boubdir; T. J. V. Bowcock; C. Bozzi; S. Braun; A. Brea Rodriguez; M. Brodski; J. Brodzicka; A. Brossa Gonzalo; D. Brundu; E. Buchanan; A. Buonaura; C. Burr; A. Bursche; J. S. Butter; J. Buytaert; W. Byczynski; S. Cadeddu; H. Cai; R. Calabrese; S. Cali; R. Calladine; M. Calvi; M. Calvo Gomez; A. Camboni; P. Campana; D. H. Campora Perez; L. Capriotti; A. Carbone; G. Carboni; R. Cardinale; A. Cardini; P. Carniti; K. Carvalho Akiba; A. Casais Vidal; G. Casse; M. Cattaneo; G. Cavallero; R. Cenci; J. Cerasoli; M. G. Chapman; M. Charles; Ph. Charpentier; G. Chatzikonstantinidis; M. Chefdeville; V. Chekalina; C. Chen; S. Chen; A. Chernov; S. -G. Chitic; V. Chobanova; M. Chrzaszcz; A. Chubykin; P. Ciambrone; M. F. Cicala; X. Cid Vidal; G. Ciezarek; F. Cindolo; P. E. L. Clarke; M. Clemencic; H. V. Cliff; J. Closier; J. L. Cobbledick; V. Coco; J. A. B. Coelho; J. Cogan; E. Cogneras; L. Cojocariu; P. Collins; T. Colombo; A. Comerma-Montells; A. Contu; N. Cooke; G. Coombs; S. Coquereau; G. Corti; C. M. Costa Sobral; B. Couturier; G. A. Cowan; D. C. Craik; A. Crocombe; M. Cruz Torres; R. Currie; C. L. Da Silva; E. Dall’Occo; J. Dalseno; C. D’Ambrosio; A. Danilina; P. d’Argent; A. Davis; O. De Aguiar Francisco; K. De Bruyn; S. De Capua; M. De Cian; J. M. De Miranda; L. De Paula; M. De Serio; P. De Simone; J. A. de Vries; C. T. Dean; W. Dean; D. Decamp; L. Del Buono; B. Delaney;

doi: 10.1103/physrevd.101.032005

handle: 11380/1210199 , 11573/1673352

Determination of quantum numbers for several excited charmed mesons observed in B−→D*+π−π− decays

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Abstract

A four-body amplitude analysis of the B−→D*+π−π− decay is performed, where fractions and relative phases of the various resonances contributing to the decay are measured. Several quasi-model-independent analyses are performed aimed at searching for the presence of new states and establishing the quantum numbers of previously observed charmed meson resonances. In particular the resonance parameters and quantum numbers are determined for the D1(2420), D1(2430), D0(2550), D1*(2600), D2(2740) and D3*(2750) states. The mixing between the D1(2420) and D1(2430) resonances is studied and the mixing parameters are measured. The dataset corresponds to an integrated luminosity of 4.7 fb−1, collected in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV with the LHCb detector.

Country

Italy

Related Organizations

University College Dublin
Ireland
Sapienza University of Rome
Italy
University of Modena and Reggio Emilia
Italy

Keywords

Electroweak Interaction, Forward Physics, Hadron-Hadron Scattering, Particle and Resonance Production

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