First Observation of the Decay Bc+→J/ψπ+π-π+

被引：56

作者：

Aaij, R. ^{[1
]}

Abellan Beteta, C. ^{[36
,70
,71
]}

Adeva, B. ^{[37
]}

Adinolfi, M. ^{[44
]}

Adrover, C. ^{[8
]}

Affolder, A. ^{[50
]}

Ajaltouni, Z. ^{[7
]}

Albrecht, J. ^{[38
]}

Alessio, F. ^{[38
]}

Alexander, M. ^{[49
]}

Ali, S. ^{[1
]}

Alkhazov, G. ^{[29
]}

Alvarez Cartelle, P. ^{[37
]}

Alves, A. A., Jr. ^{[24
]}

Amato, S. ^{[4
]}

Amhis, Y. ^{[39
]}

Anderson, J. ^{[40
]}

Appleby, R. B. ^{[52
]}

Gutierrez, O. Aquines ^{[12
]}

Archilli, F. ^{[20
,38
]}

Artamonov, A. ^{[35
]}

Artuso, M. ^{[38
,54
]}

Aslanides, E. ^{[8
]}

Auriemma, G. ^{[24
,69
]}

Bachmann, S. ^{[13
]}

Back, J. J. ^{[46
]}

Balagura, V. ^{[30
,38
]}

Baldini, W. ^{[18
]}

Barlow, R. J. ^{[52
]}

Barschel, C. ^{[38
]}

Barsuk, S. ^{[9
]}

Barter, W. ^{[45
]}

Bates, A. ^{[49
]}

Bauer, C. ^{[12
]}

Bauer, Th. ^{[1
]}

Bay, A. ^{[39
]}

Bediaga, I. ^{[3
]}

Belogurov, S. ^{[30
]}

Belous, K. ^{[35
]}

Belyaev, I. ^{[30
]}

Ben-Haim, E. ^{[10
]}

Benayoun, M. ^{[10
]}

Bencivenni, G. ^{[20
]}

Benson, S. ^{[48
]}

Benton, J. ^{[44
]}

Bernet, R. ^{[40
]}

Bettler, M. -O. ^{[19
]}

van Beuzekom, M. ^{[1
]}

Bien, A. ^{[13
]}

Bifani, S. ^{[14
]}

机构：

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

[2] Vrije Univ Amsterdam, Amsterdam, Netherlands

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

[4] Univ Fed Rio de Janeiro, Rio De Janeiro, Brazil

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

[6] Univ Savoie, LAPP, CNRS IN2P3, Annecy Le Vieux, France

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

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

[9] Univ Paris 11, LAL, CNRS IN2P3, Orsay, France

[10] Univ Paris Diderot, Univ Paris 06, LPNHE, CNRS IN2P3, Paris, France

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

[12] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[13] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany

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

[15] Sez INFN Bari, Bari, Italy

[16] Sez INFN Bologna, Bologna, Italy

[17] Sez INFN Cagliari, Cagliari, Italy

[18] Sez INFN Ferrara, Ferrara, Italy

[19] Sez INFN Firenze, Florence, Italy

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

[21] Sez INFN Genova, Genoa, Italy

[22] Sez INFN Milano Bicocca, Milan, Italy

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

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

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

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

[27] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland

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

[29] PNPI, Gatchina, Russia

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

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

[32] Russian Acad Sci INR RAN, Inst Nucl Res, Moscow, Russia

[33] Novosibirsk State Univ, Novosibirsk 630090, Russia

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

[35] Inst High Energy Phys, Protvino, Russia

[36] Univ Barcelona, Barcelona, Spain

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

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

[39] Ecole Polytech Fed Lausanne, Lausanne, Switzerland

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

[41] NSC KIPT, Kharkov, Ukraine

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

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

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

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

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

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

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

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

[50] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 3BX, Merseyside, England

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 25期

关键词：

B-C MESON; HADRONIC PRODUCTION; GENERATOR;

D O I：

10.1103/PhysRevLett.108.251802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The decay Bc(+) -> J/psi pi(+) pi(-) pi(+) is observed for the first time, using 0.8 fb(-1) of pp collisions at root s = 7 TeV collected by the LHCb experiment. The ratio of branching fractions B(B-c(+) -> J/psi pi(+) pi(-) pi(+))/B(B-c(+) -> J/psi pi(+)) is measured to be 2.41 +/- 0.30 +/- 0.33, where the first uncertainty is statistical and the second is systematic. The result is in agreement with theoretical predictions.

引用

页数：7

共 50 条

[31] Observation of Two Excited Bc+ States and Measurement of the Bc+ (2S) Mass in pp Collisions at √s=13 TeV
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Ambrogi, F.
Bergauer, T.
Brandstetter, J.
Dragicevic, M.
Eroe, J.
Del Valle, A. Escalante
Flechl, M.
Fruehwirth, R.
Jeitler, M.
Krammer, N.
Kraetschmer, I
Liko, D.
Madlener, T.
Mikulec, I
Rad, N.
Schieck, J.
Schoefbeck, R.
Spanring, M.
Spitzbart, D.
Waltenberger, W.
Wittmann, J.
Wulz, C-E
Zarucki, M.
Drugakov, V
Mossolov, V
Suarez Gonzalez, J.
Darwish, M. R.
De Wolf, E. A.
Di Croce, D.
Janssen, X.
Lauwers, J.
Lelek, A.
Pieters, M.
Van Haevermaet, H.
Van Mechelen, P.
Van Remortel, N.
Blekman, F.
Bols, E. S.
Chhibra, S. S.
D'Hondt, J.
De Clercq, J.
Flouris, G.
Lontkovskyi, D.
Lowette, S.
Marchesini, I
Moortgat, S.
Moreels, L.
PHYSICAL REVIEW LETTERS, 2019, 122 (13)
[32] Charm rescattering contribution in rare Bc+ → K+K-π+ decay
Bediaga, I
Frederico, T.
Magalhaes, P. C.
PHYSICS LETTERS B, 2018, 785 : 581 - 584
[33] Bc → J/ψ helicity form factors and the Bc+ → J/ψ plus (P, V, l+νl) decays
Cheng, Wei
Zhang, Yi
Zeng, Long
Fu, Hai-Bing
Wu, Xing-Gang
CHINESE PHYSICS C, 2022, 46 (05)
[34] Analysis of the Bc+ → Ds+ (K)over-bar0* decay
Asadi, A.
Mehraban, H.
PRAMANA-JOURNAL OF PHYSICS, 2017, 88 (01):
[35] Analysis of Bc+ → J/ψ a1(1260)+ in a perturbative QCD approach
Najafi, Fatemeh
Mehraban, Hossein
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2015, 2015 (03):
[36] Bc+ physics at LHCb
Yuan, Xuhao
XI INTERNATIONAL CONFERENCE ON HYPERONS, CHARM AND BEAUTY HADRONS (BEACH 2014), 2014, 556
[37] Lifetimes of Ξbc+ and Ξbc0 baryons
Kiselev, VV
Likhoded, AK
Onishchenko, AI
EUROPEAN PHYSICAL JOURNAL C, 2000, 16 (03): : 461 - 469
[38] Search for the doubly heavy baryon Ξbc+ decaying to J/ψΞc+
Aaij, R.
Abdelmotteleb, A. S. W.
Beteta, C. Abellan
Abudinen, F.
Ackernley, T.
Adeva, B.
Adinolfi, M.
Afsharnia, H.
Agapopoulou, C.
Aidala, C. A.
Aiola, S.
Ajaltouni, Z.
Akar, S.
Akiba, K.
Albrecht, J.
Alessio, F.
Alexander, M.
Albero, A. Alfonso
Aliouche, Z.
Cartelle, P. Alvarez
Amato, S.
Amey, J. L.
Amhis, Y.
An, L.
Anderlini, L.
Andersson, M.
Andreianov, A.
Andreotti, M.
Andreou, D.
Ao, D.
Archilli, F.
Artamonov, A.
Artuso, M.
Aslanides, E.
Atzeni, M.
Audurier, B.
Bachmann, S.
Bachmayer, M.
Back, J. J.
Bailly-Reyre, A.
Rodriguez, P. Baladron
Balagura, V.
Baldini, W.
Baptista De Souza Leite, J.
Barbetti, M.
Barlow, R. J.
Barsuk, S.
Barter, W.
Bartolini, M.
Baryshnikov, F.
CHINESE PHYSICS C, 2023, 47 (09)
[39] Search for excited Bc+ states
R. Aaij
B. Adeva
M. Adinolfi
Z. Ajaltouni
S. Akar
J. Albrecht
F. Alessio
M. Alexander
A. Alfonso Albero
S. Ali
G. Alkhazov
P. Alvarez Cartelle
A. A. Alves
S. Amato
S. Amerio
Y. Amhis
L. An
L. Anderlini
G. Andreassi
M. Andreotti
J. E. Andrews
R. B. Appleby
F. Archilli
P. d’Argent
J. Arnau Romeu
A. Artamonov
M. Artuso
E. Aslanides
M. Atzeni
G. Auriemma
M. Baalouch
I. Babuschkin
S. Bachmann
J. J. Back
A. Badalov
C. Baesso
S. Baker
V. Balagura
W. Baldini
A. Baranov
R. J. Barlow
C. Barschel
S. Barsuk
W. Barter
F. Baryshnikov
V. Batozskaya
V. Battista
A. Bay
L. Beaucourt
J. Beddow
Journal of High Energy Physics, 2018
[40] Search for excited Bc+ states
Aaij, R.
Adeva, B.
Adinolfi, M.
Ajaltouni, Z.
Akar, S.
Albrecht, J.
Alessio, F.
Alexander, M.
Alfonso Albero, A.
Ali, S.
Alkhazov, G.
Cartelle, P. Alvarez
Alves, A. A., Jr.
Amato, S.
Amerio, S.
Amhis, Y.
An, L.
Anderlini, L.
Andreassi, G.
Andreotti, M.
Andrews, J. E.
Appleby, R. B.
Archilli, F.
d'Argent, P.
Arnau Romeu, J.
Artamonov, A.
Artuso, M.
Aslanides, E.
Atzeni, M.
Auriemma, G.
Baalouch, M.
Babuschkin, I.
Bachmann, S.
Back, J. J.
Badalov, A.
Baesso, C.
Baker, S.
Balagura, V.
Baldini, W.
Baranov, A.
Barlow, R. J.
Barschel, C.
Barsuk, S.
Barter, W.
Baryshnikov, F.
Batozskaya, V.
Battista, V.
Bay, A.
Beaucourt, L.
Beddow, J.
JOURNAL OF HIGH ENERGY PHYSICS, 2018, (01):

← 1 2 3 4 5 →