Study of B0 → D- π+π-π+ and B0 → D-K+π-π+ decays

被引：17

作者：

Aaij, R. ^{[39
]}

Beteta, C. Abellan ^{[34
,73
]}

Adametz, A. ^{[11
]}

Adeva, B. ^{[35
]}

Adinolfi, M. ^{[45
]}

Adrover, C. ^{[6
]}

Affolder, A. ^{[51
]}

Ajaltouni, Z. ^{[5
]}

Albrecht, J. ^{[9
]}

Alessio, F. ^{[36
]}

Alexander, M. ^{[50
]}

Ali, S. ^{[39
]}

Alkhazov, G. ^{[27
]}

Cartelle, P. Alvarez ^{[35
]}

Alves, A. A., Jr. ^{[22
,36
]}

Amato, S. ^{[2
]}

Amhis, Y. ^{[7
]}

Anderlini, L. ^{[17
,65
]}

Anderson, J. ^{[38
]}

Andreassen, R. ^{[59
]}

Appleby, R. B. ^{[53
]}

Gutierrez, O. Aquines ^{[10
]}

Archilli, F. ^{[18
]}

Artamonov, A. ^{[33
]}

Artuso, M. ^{[55
]}

Aslanides, E. ^{[6
]}

Auriemma, G. ^{[22
,72
]}

Bachmann, S.

Back, J. J. ^{[47
]}

Baesso, C. ^{[56
]}

Balagura, V. ^{[28
]}

Baldini, W. ^{[16
]}

Barlow, R. J. ^{[53
]}

Barschel, C. ^{[36
]}

Barsuk, S. ^{[7
]}

Barter, W. ^{[46
]}

Bauer, Th. ^{[39
]}

Bay, A. ^{[37
]}

Beddow, J. ^{[50
]}

Bediaga, I. ^{[1
]}

Belogurov, S. ^{[28
]}

Belous, K. ^{[33
]}

Belyaev, I. ^{[28
]}

Ben-Haim, E. ^{[8
]}

Benayoun, M. ^{[8
]}

Bencivenni, G. ^{[18
]}

Benson, S. ^{[49
]}

Benton, J. ^{[45
]}

Berezhnoy, A. ^{[29
]}

Bernet, R. ^{[38
]}

机构：

[1] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[2] Univ Fed Rio de Janeiro UFRJ, Rio De Janeiro, Brazil

[3] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China

[4] Univ Savoie, CNRS, Lab Annecy Le Vieux Phys Particules, IN2P3, Annecy Le Vieux, France

[5] Univ Blaise Pascal, Clermont Univ, CNRS IN2P3, LPC, Clermont Ferrand, France

[6] Aix Marseille Univ, Ctr Phys Particules Marseille, CNRS IN2P3, Marseille, France

[7] Univ Paris 11, Lab Accelerateur Lineaire, CNRS IN2P3, Orsay, France

[8] Univ Paris Diderot, Univ Paris 06, Lab Nucl Phys & High Energy Phys, CNRS IN2P3, Paris, France

[9] Tech Univ Dortmund, Fak Phys, Dortmund, Germany

[10] Max Planck Inst Kernphys, Heidelberg, Germany

[11] Heidelberg Univ, Inst Phys, Heidelberg, Germany

[12] Univ Coll Dublin, Sch Phys, Dublin 2, Ireland

[13] Sez INFN Bari, Bari, Italy

[14] Sez INFN Bologna, Bologna, Italy

[15] Sez INFN Cagliari, Cagliari, Italy

[16] Sez INFN Ferrara, Ferrara, Italy

[17] Sez INFN Firenze, Florence, Italy

[18] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[19] Sez INFN Genova, Genoa, Italy

[20] Sez INFN Milano Bicocca, Milan, Italy

[21] Sez INFN Roma Tor Vergata, Rome, Italy

[22] Sez INFN Roma La Sapienza, Rome, Italy

[23] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland

[24] AGH Univ Sci & Technol, Krakow, Poland

[25] Natl Ctr Nucl Res NCBJ, Warsaw, Poland

[26] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania

[27] Petersburg Nucl Phys Inst, Gatchina, Russia

[28] Inst Theoret & Expt Phys, Moscow 117259, Russia

[29] Moscow State Univ SINP MSU, Inst Nucl Phys, Moscow, Russia

[30] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[31] Budker Inst Nucl Phys SB RAS, Novosibirsk, Russia

[32] Novosibirsk State Univ, Novosibirsk 630090, Russia

[33] Inst High Energy Phys, Protvino, Russia

[34] Univ Barcelona, Barcelona, Spain

[35] Univ Santiago de Compostela, Santiago De Compostela, Spain

[36] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland

[37] Ecole Polytech Fed Lausanne, Lausanne, Switzerland

[38] Univ Zurich, Inst Phys, Zurich, Switzerland

[39] Nikhef Natl Inst Subatom Phys, Amsterdam, Netherlands

[40] Nikhef Natl Inst Subatom Phys, Amsterdam, Netherlands

[41] Vrije Univ Amsterdam, Amsterdam, Netherlands

[42] NSC Kharkiv Inst Phys & Technol NSC KIPT, Kharkov, Ukraine

[43] Natl Acad Sci KINR, Inst Nucl Res, Kiev, Ukraine

[44] Univ Birmingham, Birmingham, W Midlands, England

[45] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[46] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[47] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[48] STFC Rutherford Appleton Lab, Didcot, Oxon, England

[49] Univ Edinburgh, Sch Phys & Astron, Edinburgh, Midlothian, Scotland

[50] Univ Glasgow, Sch Phys & Astron, Glasgow, Lanark, Scotland

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 09期

关键词：

TOOL;

D O I：

10.1103/PhysRevD.87.092001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using proton-proton collision data collected by the LHCb experiment at root s = 7 TeV, corresponding to an integrated luminosity of 1.0 fb(-1), the ratio of branching fractions of the B-0 -> D*(-)pi(+)pi(-)pi(+) decay relative to the B-0 -> D*(-)pi(+) decay is measured to be B(B-0 -> D*(-)pi(+)pi(-)pi(+))/B(B-0 -> D*(-)pi(+)) = 2.64 +/- 0.4(stat) +/- 0.13(syst). The Cabibbo-suppressed decay B-0 -> D*K--(+)pi(-)pi(+) is observed for the first time, and the measured ratio of branching fractions is B(B-0 -> D*K--(+)pi(-)pi(+))/B(B-0 -> D*K--(+)pi(-)pi(+)) = (6.47 +/- 0.37(stat) +/- 0.35(syst)) x 10(-2). A search for orbital excitations of charm mesons contributing to the B-0 -> D*(-)pi(+)pi(-)pi(+) final state is also performed, and the first observation of the B-0 -> (D) over bar (1)(2420)(0)pi(+)pi(-) decay is reported with the ratio of branching fractions B(B-0 ->(D-1(2420)(0)-> D*(-)pi(+))pi(-)pi(+))/B(B-0 -> D*(-)pi(+)pi(-)pi(+)) = (2.04 +/- 0.42(stat) +/- 0.22(syst)) x 10(-2), where the numerator represents a product of the branching fractions B(B-0 -> (D) over bar (1)(2420)(0)pi(-)pi(+)) and B(D-1(2420)(0) -> D*(-)pi(+)).

引用

页数：10

共 23 条

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← 1 2 3 →

Study of B0 → D*- π+π-π+ and B0 → D*-K+π-π+ decays

Study of B0 → D- π+π-π+ and B0 → D-K+π-π+ decays