Measurement of the branching fractions of the decays D+ → K-K+K+, D+ → π-π+ K+ and Ds+ → π-K+K+

被引:7
|
作者
Aaij, R. [27 ,42 ]
Adeva, B. [41 ]
Adinolfi, M. [48 ]
Ajaltouni, Z. [5 ,55 ]
Akar, S. [59 ]
Albrecht, J. [10 ]
Alessio, F. [42 ]
Alexander, M. [53 ]
Alfonso Albero, A. [40 ]
Alkhazov, G. [33 ]
Cartelle, P. Alvarez [55 ]
Alves, A. A., Jr. [59 ]
Amato, S. [2 ]
Amerio, S. [23 ]
Amhis, Y. [7 ]
An, L. [3 ]
Anderlini, L. [17 ]
Andreassi, G. [43 ]
Andreotti, M. [16 ,80 ]
Andrews, J. E. [60 ]
Appleby, R. B. [56 ]
Archilli, F. [27 ]
Romeu, J. Arnau [6 ]
Artamonov, A. [39 ]
Artuso, M. [61 ]
Aslanides, E. [6 ]
Atzeni, M. [44 ]
Auriemma, G. [26 ]
Baalouch, M. [5 ]
Babuschkin, I. [56 ]
Bachmann, S. [12 ]
Back, J. J. [50 ]
Badalov, A. [40 ,86 ]
Baesso, C. [62 ]
Baker, S. [55 ]
Balagura, V. [7 ,75 ]
Baldini, W. [16 ]
Baranov, A. [37 ]
Barlow, R. J. [56 ]
Barschel, C. [42 ]
Barsuk, S. [7 ]
Barter, W. [56 ]
Baryshnikov, F. [70 ]
Batozskaya, V. [31 ]
Battista, V. [43 ]
Bay, A. [43 ]
Beaucourt, L. [4 ]
Beddow, J. [53 ]
Bedeschi, F. [24 ]
Bediaga, I. [1 ]
机构
[1] CBPF, Rio De Janeiro, Brazil
[2] Univ Fed Rio de Janeiro UFRJ, Rio De Janeiro, Brazil
[3] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China
[4] Univ Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, IN2P3,LAPP, Annecy, France
[5] Univ Blaise Pascal, Clermont Univ, CNRS, IN2P3,LPC, Clermont Ferrand, France
[6] Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France
[7] Univ Paris Saclay, Univ Paris Sud, CNRS, LAL,IN2P3, Orsay, France
[8] Sorbonne Univ, Paris Diderot Sorbonne Paris Cite, CNRS, LPNHE,IN2P3, Paris, France
[9] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany
[10] Tech Univ Dortmund, Fak Phys, Dortmund, Germany
[11] MPIK, Heidelberg, Germany
[12] Heidelberg Univ, Phys Inst, Heidelberg, Germany
[13] Univ Coll Dublin, Sch Phys, Dublin, Ireland
[14] INFN, Sez Bari, Bari, Italy
[15] INFN, Sez Bologna, Bologna, Italy
[16] INFN, Sez Ferrara, Ferrara, Italy
[17] INFN, Sez Firenze, Florence, Italy
[18] INFN, Lab Nazl Frascati, Frascati, Italy
[19] INFN, Sez Genova, Genoa, Italy
[20] INFN, Sez Milano Bicocca, Milan, Italy
[21] INFN, Sez Milano, Milan, Italy
[22] INFN, Sez Cagliari, Monserrato, Italy
[23] INFN, Sez Padova, Padua, Italy
[24] INFN, Sez Pisa, Pisa, Italy
[25] INFN, Sez Roma Tor Vergata, Rome, Italy
[26] INFN, Sez Roma Sapienza, Rome, Italy
[27] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands
[28] Vrije Univ Amsterdam, Amsterdam, Netherlands
[29] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland
[30] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland
[31] Natl Ctr Nucl Res NCBJ, Warsaw, Poland
[32] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania
[33] PNPI, Gatchina, Russia
[34] ITEP, Moscow, Russia
[35] MSU, Inst Nucl Phys, SINP, Moscow, Russia
[36] RAS, INR, Moscow, Russia
[37] Yandex Sch Data Anal, Moscow, Russia
[38] RAS, SB, Budker Inst Nucl Phys, Novosibirsk, Russia
[39] IHEP, Protvino, Russia
[40] Univ Barcelona, ICCUB, Barcelona, Spain
[41] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain
[42] CERN, European Org Nucl Res, Geneva, Switzerland
[43] Ecole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland
[44] Univ Zurich, Phys Inst, Zurich, Switzerland
[45] KIPT, NSC, Kharkov, Ukraine
[46] Natl Acad Sci, KINR, Inst Nucl Res, Kiev, Ukraine
[47] Univ Birmingham, Birmingham, W Midlands, England
[48] Univ Bristol, HH Wills Phys Lab, Bristol, Avon, England
[49] Univ Cambridge, Cavendish Lab, Cambridge, England
[50] Univ Warwick, Dept Phys, Coventry, W Midlands, England
关键词
Branching fraction; Charm physics; Flavor physics; Hadron-Hadron scattering (experiments); TOOL;
D O I
10.1007/JHEP03(2019)176
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The branching fractions of the doubly Cabibbo-suppressed decays D+ ! K, D+ ! and D+ s ! are measured using the decays D+ ! K and D+ s ! K as normalisation channels. The measurements are performed using proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 8TeV, corresponding to an integrated luminosity of 2.0 fb. The results are B (D+ ! K) B (D+ ! K) = (6 : 541 0 : 025 0 : 042) 10 B (D+ ! ) B (D+ ! K) = (5 : 231 0 : 009 0 : 023) 10 B (D+ s ! ) B (D+ s ! K) = (2 : 372 0 : 024 0 : 025) 10 where the uncertainties are statistical and systematic, respectively. These are the most precise measurements up to date.
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