Evidence for the two-body charmless baryonic decay B+ → p(Λ)over-bar

被引：0

作者：

Aaij, R. ^{[40
]}

Adeva, B. ^{[39
]}

Adinolfi, M. ^{[48
]}

Ajaltouni, Z. ^{[5
]}

Akar, S. ^{[6
]}

Albrecht, J. ^{[10
]}

Alessio, F. ^{[40
]}

Alexander, M. ^{[53
]}

Ali, S. ^{[43
]}

Alkhazov, G. ^{[31
]}

Cartelle, P. Alvarez ^{[55
]}

Alves, A. A., Jr. ^{[59
]}

Amato, S. ^{[2
]}

Amerio, S. ^{[23
]}

Armhis, Y. ^{[7
]}

An, L. ^{[41
]}

Anderlini, L. ^{[18
]}

Andreassi, G. ^{[41
]}

Andreotti, M. ^{[17
,77
]}

Andrews, J. E. ^{[60
]}

Appleby, R. B. ^{[56
]}

Archilli, F. ^{[43
]}

d'Argent, P. ^{[12
]}

Romeu, J. Arnau ^{[6
]}

Artamonov, A. ^{[37
]}

Artuso, M. ^{[61
]}

Aslanides, E. ^{[6
]}

Auriemma, G. ^{[26
]}

Baalouch, M. ^{[5
]}

Babuschkin, I. ^{[56
]}

Bachmann, S. ^{[12
]}

Back, J. J. ^{[50
]}

Badalov, A. ^{[38
]}

Baesso, C. ^{[62
]}

Baker, S. ^{[55
]}

Baldini, W. ^{[17
]}

Barlow, R. J. ^{[56
]}

Barschel, C. ^{[40
]}

Barsuk, S. ^{[7
]}

Barter, W. ^{[40
]}

Baszczyk, M. ^{[27
]}

Batozskaya, V. ^{[29
]}

Batsukh, B. ^{[61
]}

Battista, V. ^{[41
]}

Bay, A. ^{[41
]}

Beaucourt, L. ^{[4
]}

Beddow, J. ^{[53
]}

Bedeschi, F. ^{[24
]}

Bediaga, I. ^{[1
]}

Bel, L. J. ^{[43
]}

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 Savoie Mont Blanc, CNRS IN2P3, LAPP, Annecy Le Vieux, France

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

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

[7] Univ Paris Sud, LAL, CNRS IN2P3, Orsay, France

[8] Univ Paris Diderot, Univ Pierre & Marie Curie, LPNHE, CNRS IN2P3, Paris, France

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

[10] Tech Univ Dortmund, Fac Phys, Dortmund, Germany

[11] Max Planck Inst Kernphys, Heidelberg, Germany

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

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

[14] Sez INFN Bari, Bari, Italy

[15] Sez INFN Bologna, Bologna, Italy

[16] Sez INFN Cagliari, Cagliari, Italy

[17] Sez INFN Ferrara, Ferrara, Italy

[18] Sez INFN Firenze, Florence, Italy

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

[20] Sez INFN Genova, Genoa, Italy

[21] Sez INFN Milano Bicocca, Milan, Italy

[22] Sez INFN Milano, Milan, Italy

[23] Sez INFN Padova, Padua, Italy

[24] Sez INFN Pisa, Pisa, Italy

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

[26] Sez INFN Roma Sapienza, Rome, Italy

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

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

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

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

[31] PNPI, Gatchina, Russia

[32] ITEP, Moscow, Russia

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

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

[35] Yandex Sch Data Anal, Moscow, Russia

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

[37] IHEP, Protvino, Russia

[38] Univ Barcelona, ICCUB, Barcelona, Spain

[39] Univ Santiago, Santiago De Compostela, Spain

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

[41] Ecole Polytech Fed Lausanne, Lausanne, Switzerland

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

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

[44] Vrije Univ Amsterdam, Amsterdam, Netherlands

[45] NSC KIPT, 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 | 2017年 / 04期

关键词：

B physics; Branching fraction; Flavor physics; Hadron-Hadron scattering (experiments); TOOL;

D O I：

10.1007/JHEP04(2017)162

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：

A search for the rare two-body charmless baryonic decay B+ -> p (Lambda) over bar is performed with pp collision data, corresponding to an integrated luminosity of 3 fb(-1), collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. An excess of B+ -> p (Lambda) over bar candidates with respect to background expectations is seen with a statistical significance of 4.1 standard deviations, and constitutes the first evidence for this decay. The branching fraction, measured using the B+ -> K-S(0)pi(+) decay for normalisation, is B(B+ -> p (Lambda) over bar) = (2.4(-0.8)(+)(+1.0) +/- 0.3) x 10(-7), where the first uncertainty is statistical and the second systematic.

引用

页数：18

共 30 条

[1] First evidence for the two-body charmless baryonic decay B0 → p(p)over-bar
Aaij, R.
Adeva, B.
Adinolfi, M.
Adrover, C.
Affolder, A.
Ajaltouni, Z.
Albrecht, J.
Alessio, F.
Alexander, M.
Ali, S.
Alkhazov, G.
Cartelle, P. Alvarez
Alves, A. A., Jr.
Amato, S.
Amerio, S.
Amhis, Y.
Anderlini, L.
Anderson, J.
Andreassen, R.
Andrews, J. E.
Appleby, R. B.
Gutierrez, O. Aquines
Archilli, F.
Artamonov, A.
Artuso, M.
Aslanides, E.
Auriemma, G.
Baalouch, M.
Bachmann, S.
Back, J. J.
Baesso, C.
Balagura, V.
Baldini, W.
Barlow, R. J.
Barschel, C.
Barsuk, S.
Barter, W.
Bauer, Th.
Bay, A.
Beddow, J.
Bedeschi, F.
Bediaga, I.
Belogurov, S.
Belous, K.
Belyaev, I.
Ben-Haim, E.
Bencivenni, G.
Benson, S.
Benton, J.
Berezhnoy, A.
JOURNAL OF HIGH ENERGY PHYSICS, 2013, (10):
[2] Observation of the semileptonic decay B+→ p(p)over-barμ+νμ
Aaij, R.
Beteta, C. Abellan
Ackernley, T.
Adeva, B.
Adinolfi, M.
Afsharnia, H.
Aidala, C. A.
Aiola, S.
Ajaltouni, Z.
Akar, S.
Albicocco, P.
Albrecht, J.
Alessio, F.
Alexander, M.
Alfonso Albero, A.
Alkhazov, G.
Cartelle, P. Alvarez
Alves Jr, A. A.
Amato, S.
Amhis, Y.
An, L.
Anderlini, L.
Andreassi, G.
Andreotti, M.
Archilli, F.
Romeu, J. Arnau
Artamonov, A.
Artuso, M.
Arzymatov, K.
Aslanides, E.
Atzeni, M.
Audurier, B.
Bachmann, S.
Back, J. J.
Baker, S.
Balagura, V
Baldini, W.
Baranov, A.
Barlow, R. J.
Barsuk, S.
Barter, W.
Bartolini, M.
Baryshnikov, F.
Bassi, G.
Batozskaya, V
Batsukh, B.
Battig, A.
Bay, A.
Becker, M.
Bedeschi, F.
JOURNAL OF HIGH ENERGY PHYSICS, 2020, (03):
[3] Searches for B(s)0 → J/ψp(p)over-bar and B+ → J/ψp(p)over-barπ+ decays
Aaij, R.
Adeva, B.
Adinolfi, M.
Adrover, C.
Affolder, A.
Ajaltouni, Z.
Albrecht, J.
Alessio, F.
Alexander, M.
Ali, S.
Alkhazov, G.
Alvarez Cartelle, P.
Alves, A. A., Jr.
Amato, S.
Amerio, S.
Amhis, Y.
Anderlini, L.
Anderson, J.
Andreassen, R.
Andrews, J. E.
Appleby, R. B.
Gutierrez, O. Aquines
Archilli, F.
Artamonov, A.
Artuso, M.
Aslanides, E.
Auriemmam, G.
Baalouch, M.
Bachmann, S.
Back, J. J.
Baesso, C.
Balagura, V.
Baldini, W.
Barlow, R. J.
Barsche, C.
Barsuk, S.
Barter, W.
Bauer, Th.
Bay, A.
Beddow, J.
Bedeschi, F.
Bediagal, I.
Belogurov, S.
Belous, K.
Belyaev, I.
Ben-Haim, E.
Bencivenni, G.
Benson, S.
Benton, J.
Berezhnoy, A.
JOURNAL OF HIGH ENERGY PHYSICS, 2013, (09):
[4] Evidence for the decay B0 → p(p)over-barπ0
Pal, B.
Adachi, I.
Adamczyk, K.
Aihara, H.
Asner, D. M.
Atmacan, H.
Aulchenko, V.
Aushev, T.
Ayad, R.
Babu, V.
Badhrees, I.
Bansal, V.
Behera, P.
Beleno, C.
Berger, M.
Bhardwaj, V.
Bhuyan, B.
Bilka, T.
Biswal, J.
Bobrov, A.
Bozek, A.
Bracko, M.
Browder, T. E.
Campajola, M.
Cao, L.
Cervenkov, D.
Chekelian, V.
Chen, A.
Cheon, B. G.
Chilikin, K.
Cho, K.
Choi, S. -K.
Choi, Y.
Cinabro, D.
Cunliffe, S.
Di Carlo, S.
Dolezal, Z.
Dong, T. V.
Dossett, D.
Eidelman, S.
Epifanov, D.
Fast, J. E.
Ferber, T.
Fulsom, B. G.
Garg, R.
Gaur, V.
Gabyshev, N.
Garmash, A.
Giri, A.
Goldenzweig, P.
PHYSICAL REVIEW D, 2019, 99 (09)
[5] Studies of the decays B+ → p(p)over-barph+ and observation of B+ → (Λ)over-bar(1520)p
Aaij, R.
Adeva, B.
Adinolfi, M.
Adrover, C.
Affolder, A.
Ajaltouni, Z.
Albrecht, J.
Alessio, F.
Alexander, M.
Ali, S.
Alkhazov, G.
Alvarez Cartelle, P.
Alves, A. A., Jr.
Amato, S.
Amerio, S.
Amhis, Y.
Anderlini, L.
Anderson, J.
Andreassen, R.
Andrews, J. E.
Appleby, R. B.
Gutierrez, O. Aquines
Archilli, F.
Artamonov, A.
Artuso, M.
Aslanides, E.
Auriemma, G.
Baalouch, M.
Bachmann, S.
Back, J. J.
Baesso, C.
Balagura, V.
Baldini, W.
Barlow, R. J.
Barschel, C.
Barsuk, S.
Barter, W.
Bauer, Th.
Bay, A.
Beddow, J.
Bedeschi, F.
Bediaga, I.
Belogurov, S.
Belous, K.
Belyaev, I.
Ben-Haim, E.
Bencivenni, G.
Benson, S.
Benton, J.
Berezhnoy, A.
PHYSICAL REVIEW D, 2013, 88 (05)
[6] Evidence for the two-body charmless baryonic decay B+→pΛ¯\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ {B}^{+}\to p\overline{\varLambda} $$\end{document}
R. Aaij
B. Adeva
M. Adinolfi
Z. Ajaltouni
S. Akar
J. Albrecht
F. Alessio
M. Alexander
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
G. Auriemma
M. Baalouch
I. Babuschkin
S. Bachmann
J. J. Back
A. Badalov
C. Baesso
S. Baker
W. Baldini
R. J. Barlow
C. Barschel
S. Barsuk
W. Barter
M. Baszczyk
V. Batozskaya
B. Batsukh
V. Battista
A. Bay
L. Beaucourt
J. Beddow
F. Bedeschi
I. Bediaga
L. J. Bel
Journal of High Energy Physics, 2017 (4)
[7] Testing the W-exchange mechanism with two-body baryonic B decays
Hsiao, Y. K.
Tsai, Shang-Yuu
Lih, Chong-Chung
Rodrigues, Eduardo
JOURNAL OF HIGH ENERGY PHYSICS, 2020, 2020 (04)
[8] Observation of the decay Λb0 → Λc+p(p)over-barπ-
Aaij, R.
Adeva, B.
Adinolfi, M.
Ajaltouni, Z.
Akar, S.
Albicocco, R.
Albrecht, J.
Alessio, F.
Alexander, M.
Albero, A. Alfonso
Ali, S.
Alkhazov, G.
Cartelle, R. Alvarez
Alves, A. A.
Amato, S.
Amerio, S.
Amhis, Y.
An, L.
Anderlini, L.
Andreassi, G.
Andreotti, M.
Andrews, J. E.
Appleby, R. B.
Archilli, F.
d'Argent, R.
Romeu, J. Arnau
Artamonov, A.
Artuso, M.
Aslanides, E.
Atzeni, M.
Auriemma, G.
Bachmann, S.
Back, J. J.
Baker, S.
Balagura, V.
Baldini, W.
Baranov, A.
Barlow, R. J.
Barsuk, S.
Barter, W.
Baryshnikov, F.
Batozskaya, V.
Battista, V.
Bay, A.
Beddow, J.
Bedeschi, F.
Bediaga, I.
Beiter, A.
Bel, L. J.
Beliy, N.
PHYSICS LETTERS B, 2018, 784 : 101 - 111
[9] Evidence for the decay Bs0 → (K)over-bar*0 μ+μ-
Aaij, R.
Adeva, B.
Adinolfi, M.
Ajaltouni, Z.
Akar, S.
Albicocco, P.
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.
Romeu, J. Arnau
Artamonov, A.
Artuso, M.
Aslanides, E.
Atzeni, M.
Auriemma, G.
Bachmann, S.
Back, J. J.
Baker, S.
Balagura, V.
Baldini, W.
Baranov, A.
Barlow, R. J.
Barsuk, S.
Barter, W.
Baryshnikov, F.
Batozskaya, V.
Battista, V.
Bay, A.
Beddow, J.
Bedeschi, F.
Bediaga, I.
Beiter, A.
Bel, L. J.
Beliy, N.
JOURNAL OF HIGH ENERGY PHYSICS, 2018, (07):
[10] First evidence for the two-body charmless baryonic decay \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$ {B^0}\to p\overline{p} $\end{document}
R. Aaij
B. Adeva
M. Adinolfi
C. Adrover
A. Affolder
Z. Ajaltouni
J. Albrecht
F. Alessio
M. Alexander
S. Ali
G. Alkhazov
P. Alvarez Cartelle
A. A. Alves
S. Amato
S. Amerio
Y. Amhis
L. Anderlini
J. Anderson
R. Andreassen
J. E. Andrews
R. B. Appleby
O. Aquines Gutierrez
F. Archilli
A. Artamonov
M. Artuso
E. Aslanides
G. Auriemma
M. Baalouch
S. Bachmann
J. J. Back
C. Baesso
V. Balagura
W. Baldini
R. J. Barlow
C. Barschel
S. Barsuk
W. Barter
Th. Bauer
A. Bay
J. Beddow
F. Bedeschi
I. Bediaga
S. Belogurov
K. Belous
I. Belyaev
E. Ben-Haim
G. Bencivenni
S. Benson
J. Benton
A. Berezhnoy
Journal of High Energy Physics, 2013 (10)

← 1 2 3 →