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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2019年 / 2019卷 / 03期

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.

引用

页数：24

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