Evidence for the decays B0 → (D)over-bar()0φ and updated measurements of the branching fractions of the Bs0 → (D)over-bar()0φ decays

被引：0

作者：

Aaij, R. ^{[33
]}

Abdelmotteleb, A. S. W. ^{[52
]}

Beteta, C. Abellan ^{[46
]}

Abudinen, F. ^{[52
]}

Ackernley, T. ^{[56
]}

Adeva, B. ^{[42
]}

Adinolfi, M. ^{[50
]}

Adlarson, P. ^{[78
]}

Afsharnia, H. ^{[9
]}

Agapopoulou, C. ^{[44
]}

Aidala, C. A. ^{[79
]}

Ajaltouni, Z. ^{[9
]}

Akar, S. ^{[61
]}

Akiba, K. ^{[33
]}

Albicocco, P. ^{[23
]}

Albrecht, J. ^{[15
]}

Alessio, F. ^{[44
]}

Alexander, M. ^{[55
]}

Albero, A. Alfonso ^{[41
]}

Aliouche, Z. ^{[58
]}

Cartelle, P. Alvarez ^{[51
]}

Amalric, R. ^{[13
]}

Amato, S. ^{[2
]}

Amey, J. L. ^{[50
]}

Amhis, Y. ^{[11
,44
]}

An, L. ^{[5
]}

Anderlini, L. ^{[22
]}

Andersson, M. ^{[46
]}

Andreianov, A. ^{[39
]}

Andreotti, M. ^{[21
]}

Andreou, D. ^{[64
]}

Ao, D. ^{[6
]}

Archilli, F. ^{[32
,98
]}

Artamonov, A. ^{[39
]}

Artuso, M. ^{[64
]}

Aslanides, E. ^{[10
]}

Atzeni, M. ^{[46
]}

Audurier, B. ^{[12
]}

Perea, I. B. Bachiller ^{[8
]}

Bachmann, S. ^{[17
]}

Bachmayer, M. ^{[45
]}

Back, J. J. ^{[52
]}

Bailly-reyre, A. ^{[13
]}

Rodriguez, P. Baladron ^{[42
]}

Balagura, V. ^{[12
]}

Baldini, W. ^{[21
,44
]}

Leite, J. Baptista de Souza ^{[1
]}

Barbetti, M. ^{[22
,89
]}

Barbosa, I. R. ^{[66
]}

Barlow, R. J. ^{[58
]}

机构：

[1] CBPF, Rio De Janeiro, Brazil

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

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

[4] IHEP, Beijing, Peoples R China

[5] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China

[6] Univ Chinese Acad Sci, Beijing, Peoples R China

[7] Cent China Normal Univ, Inst Particle Phys, Wuhan, Hubei, Peoples R China

[8] Univ Savoie Mt Blanc, CNRS, IN2P3, LAPP, Annecy, France

[9] Univ Clermont Auvergne, LPC, CNRS, IN2P3, Clermont Ferrand, France

[10] Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France

[11] Univ Paris Saclay, CNRS, IN2P3, IJCLab, Orsay, France

[12] Inst Polytech Paris, Ecole Polytech, Lab Leprince Ringuet, CNRS,IN2P3, Palaiseau, France

[13] Sorbonne Univ, Paris Diderot Sorbonne Paris Cite, LPNHE, CNRS,IN2P3, Paris, France

[14] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany

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

[16] MPIK, Heidelberg, Germany

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

[18] Univ Coll Dublin, Sch Phys, Dublin, Ireland

[19] INFN, Sez Bari, Bari, Italy

[20] INFN, Sez Bologna, Bologna, Italy

[21] INFN, Sez Ferrara, Ferrara, Italy

[22] INFN, Sez Firenze, Florence, Italy

[23] INFN, Lab Nazl Frascati, Frascati, Italy

[24] INFN, Sez Genova, Genoa, Italy

[25] INFN, Sez Milano, Milan, Italy

[26] INFN, Sez Milano Bicocca, Milan, Italy

[27] INFN, Sez Cagliari, Monserrato, Italy

[28] Univ Padua, Padua, Italy

[29] INFN, Padua, Italy

[30] INFN, Sez Pisa, Pisa, Italy

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

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

[33] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands

[34] Vrije Univ Amsterdam, Amsterdam, Netherlands

[35] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland

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

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

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

[39] CERN, Geneva, Switzerland

[40] Univ Ramon Llull, DS4DS, Barcelona, Spain

[41] Univ Barcelona, ICCUB, Barcelona, Spain

[42] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain

[43] CSIC, Ctr Mixto Univ Valencia, Inst Fis Corpuscular, Valencia, Spain

[44] European Org Nucl Res CERN, Geneva, Switzerland

[45] Ecole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland

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

[47] NSC KIPT, Kharkiv, Ukraine

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

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

[50] Univ Bristol, HH Wills Phys Lab, Bristol, Avon, England

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2023年 / 10期

关键词：

B Physics; Branching fraction; Hadron-Hadron Scattering; CKM Angle Gamma; MESON; TOOL;

D O I：

10.1007/JHEP10(2023)123

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：

Evidence for the decays B-0 -> (D) over bar (0)phi and B-0 -> (D) over bar (*0) phi is reported with a significance of 3.6 sigma and 4.3 sigma, respectively. The analysis employs pp collision data at centre-of-mass energies root s = 7, 8 and 13TeV collected by the LHCb detector and corresponding to an integrated luminosity of 9 fb(-1). The branching fractions are measured to be B(B-0 -> (D) over bar (0)phi) = (7.7 +/- 2.1 +/- 0.7 +/- 0.7) x 10(-7), B(B-0 -> (D) over bar (*0)phi) = (2.2 +/- 05 +/- 0.2 +/- 0.2) x 10(-6). In these results, the first uncertainty is statistical, the second systematic, and the third is related to the branching fraction of the B-0 -> (D) over bar K-0(+) K- decay, used for normalisation. By combining the branching fractions of the decays B-0 -> (D) over bar ((*)0)phi and B-0 -> (D) over bar ((*)0)omega, the omega-phi mixing angle delta is constrained to be tan(2)delta = (3.6 +/- 0.7 +/- 0.4) x 10(-3), where the first uncertainty is statistical and the second systematic. An updated measurement of the branching fractions of the B-s(0) -> (D) over bar ((*)0).phi decays, which can be used to determine the CKM angle gamma, leads to B(B-s(0) -> (D) over bar (0)phi) = (2.30 +/- 0.10 +/- 0.11 +/- 0.20) x 10(-5), B(B-s(0) -> (D) over bar (*0)phi) = (3.17 +/- 0.16 +/- 0.17 +/- 0.27) x 10(-5).

引用

页数：26

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Evidence for the decays B0 → (D)over-bar(*)0φ and updated measurements of the branching fractions of the Bs0 → (D)over-bar(*)0φ decays

Evidence for the decays B0 → (D)over-bar()0φ and updated measurements of the branching fractions of the Bs0 → (D)over-bar()0φ decays