Model-Independent Observation of Exotic Contributions to B° → J/ψK+π- Decays

被引：22

作者：

Aaij, R. ^{[29
]}

Abellan Beteta, C. ^{[47
]}

Adeva, B. ^{[44
]}

Adinolfi, M. ^{[51
]}

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

Ajaltouni, Z. ^{[7
]}

Akar, S. ^{[62
]}

Albicocco, P. ^{[20
]}

Albrecht, J. ^{[12
,101
]}

Alessio, F. ^{[45
]}

Alexander, M. ^{[56
]}

Alfonso Albero, A. ^{[43
]}

Alkhazov, G. ^{[42
]}

Cartelle, P. Alvarez ^{[58
]}

Alves, A. A., Jr. ^{[44
]}

Amato, S. ^{[2
]}

Amerio, S. ^{[25
]}

Amhis, Y. ^{[9
]}

An, L. ^{[19
]}

Anderlini, L. ^{[19
]}

Andreassi, G. ^{[46
]}

Andreotti, M. ^{[18
]}

Andrews, J. E. ^{[63
]}

Archilli, F. ^{[29
]}

Romeu, J. Arnau ^{[8
]}

Artamonov, A. ^{[41
,61
]}

Artuso, M. ^{[64
]}

Arzymatov, K. ^{[39
]}

Aslanides, E. ^{[8
]}

Atzeni, M. ^{[47
]}

Audurier, B. ^{[24
]}

Bachmann, S. ^{[14
]}

Back, J. J. ^{[53
]}

Baker, S. ^{[58
]}

Balagura, V. ^{[9
,81
]}

Baldini, W. ^{[18
]}

Baranov, A. ^{[39
]}

Barlow, R. J. ^{[59
]}

Barsuk, S. ^{[9
]}

Barter, W. ^{[59
]}

Bartolini, M. ^{[21
]}

Baryshnikov, F. ^{[75
]}

Batozskaya, V. ^{[34
]}

Batsukh, B. ^{[64
]}

Battig, A. ^{[12
]}

Battista, V. ^{[46
]}

Bay, A. ^{[46
]}

Beddow, J. ^{[56
]}

Bedeschi, F. ^{[26
]}

Bediaga, I. ^{[1
]}

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] Univ Chinese Acad Sci, Beijing, Peoples R China

[5] Ihep, Beijing, Peoples R China

[6] Univ Savoie Mont Blanc, Univ Grenoble Alpes, CNRS, IN2P3 LAPP, Annecy, France

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

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

[9] Univ Paris Saclay, CNRS IN2P3, Univ Paris Sud, LAL, Orsay, France

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

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

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

[13] MPIK, Heidelberg, Germany

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

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

[16] INFN Sez Bari, Bari, Italy

[17] INFN Sez Bologna, Bologna, Italy

[18] INFN Sez Ferrara, Ferrara, Italy

[19] INFN Sez Firenze, Florence, Italy

[20] INFN Lab Nazl Frascati, Frascati, Italy

[21] INFN Sez Genova, Genoa, Italy

[22] INFN Sez Milano Bicocca, Milan, Italy

[23] INFN Sez Milano, Milan, Italy

[24] INFN Sez Cagliari, Monserrato, Italy

[25] INFN Sez Padova, Padua, Italy

[26] INFN Sez Pisa, Pisa, Italy

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

[28] INFN Sez Roma Sapienza, Rome, Italy

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

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

[31] Vrije Univ Amsterdam, Amsterdam, Netherlands

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

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

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

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

[36] ITEP NRC KI, Moscow, Russia

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

[38] RAS, INR, Moscow, Russia

[39] Yandex Sch Data Anal, Moscow, Russia

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

[41] IHEP NRC KI, Protvino, Russia

[42] PNPI NRC KI, Gatchina, Russia

[43] Univ Barcelona, ICCUB, Barcelona, Spain

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

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

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

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

[48] NSC KIPT, Kharkov, Ukraine

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

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

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 122卷 / 15期

关键词：

TOOL;

D O I：

10.1103/PhysRevLett.122.152002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An angular analysis of B degrees -> J/psi K+pi(-) decays is performed, using proton-proton collision data corresponding to an integrated luminosity of 3 fb(-1) collected with the LHCb detector. The m(K+pi(-) ) spectrum is divided into fine bins. In each m(K+pi(-)) bin, the hypothesis that the three-dimensional angular distribution can be described by structures induced only by K* resonances is examined, making minimal assumptions about the K+pi(-) system. The data reject the K*-only hypothesis with a large significance, implying the observation of exotic contributions in a model-independent fashion. Inspection of the m(J/psi pi(-)) vs m(K+pi(-)) plane suggests structures near m(J/psi pi(-)) = 4200 and 4600 MeV.

引用

页数：10

共 20 条

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