Measurement of the Λb0 lifetime and mass in the ATLAS experiment

被引：24

作者：

Aad, G. ^{[70
,122
]}

Abajyan, T. ^{[31
]}

Abbott, B. ^{[148
]}

Abdallah, J. ^{[15
,16
,17
]}

Khalek, S. Abdel ^{[152
,153
]}

Abdelalim, A. A. ^{[71
]}

Abdinov, O. ^{[14
]}

Aben, R. ^{[141
,142
]}

Abi, B. ^{[149
]}

Abolins, M. ^{[122
]}

AbouZeid, O. S. ^{[213
]}

Abramowicz, H. ^{[207
]}

Abreu, H. ^{[186
]}

Acerbi, E. ^{[123
]}

Acharya, B. S. ^{[220
,221
]}

Adamczyk, L. ^{[59
]}

Adams, D. L. ^{[38
]}

Addy, T. N. ^{[82
]}

Adelman, J. ^{[238
]}

Adomeit, S. ^{[132
]}

Adragna, P. ^{[106
]}

Adye, T. ^{[171
]}

Aefsky, S. ^{[33
]}

Aguilar-Saavedra, J. A. ^{[164
,165
,166
]}

Agustoni, M. ^{[23
,24
]}

Aharrouche, M. ^{[114
]}

Ahlen, S. P. ^{[32
]}

Ahles, F. ^{[70
]}

Ahmad, A. ^{[31
,120
,201
,202
]}

Ahsan, M. ^{[62
]}

Aielli, G. ^{[176
,177
]}

Akdogan, T. ^{[26
]}

Akesson, T. P. A. ^{[112
]}

Akimoto, G. ^{[209
,210
]}

Akimov, A. V. ^{[128
]}

Alam, M. S. ^{[1
]}

Alam, M. A. ^{[107
]}

Albert, J. ^{[231
]}

Albrand, S. ^{[79
,80
,81
]}

Aleksa, M. ^{[44
]}

Aleksandrov, I. N. ^{[92
]}

Alessandria, F.

Alexa, C. ^{[39
]}

Alexander, G. ^{[207
]}

Alexandre, G. ^{[71
]}

Alexopoulos, T. ^{[13
]}

Alhroob, M. ^{[220
,222
]}

Aliev, M. ^{[22
]}

Alimonti, G.

Alison, J. ^{[159
]}

机构：

[1] SUNY Albany, Dept Phys, Albany, NY 12222 USA

[2] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[3] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey

[4] Gazi Univ, Dept Phys, Ankara, Turkey

[5] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey

[6] Turkish Atom Energy Commiss, Ankara, Turkey

[7] CNRS, IN2P3, LAPP, Annecy Le Vieux, France

[8] Univ Savoie, Annecy Le Vieux, France

[9] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[10] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[11] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

[12] Univ Athens, Dept Phys, Athens, Greece

[13] Natl Tech Univ Athens, Dept Phys, Zografos, Greece

[14] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan

[15] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[16] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain

[17] ICREA, Barcelona, Spain

[18] Univ Belgrade, Inst Phys, Belgrade, Serbia

[19] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia

[20] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[21] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[22] Humboldt Univ, Dept Phys, Berlin, Germany

[23] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland

[24] Univ Bern, High Energy Phys Lab, Bern, Switzerland

[25] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[26] Bogazici Univ, Dept Phys, Istanbul, Turkey

[27] Dogus Univ, Div Phys, Istanbul, Turkey

[28] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey

[29] Ist Nazl Fis Nucl, Sez Bologna, Milan, Italy

[30] Univ Bologna, Dipartmento Fis, Bologna, Italy

[31] Univ Bonn, Inst Phys, Bonn, Germany

[32] Boston Univ, Dept Phys, Boston, MA 02215 USA

[33] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA

[34] Univ Fed Rio de Janeiro COPPE EE IF, Rio De Janeiro, Brazil

[35] Fed Univ Juiz de Fora UFJF, Juiz De Fora, Brazil

[36] Fed Univ Sao Joao del Rei UFSJ, Sao Joao Del Rei, Brazil

[37] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil

[38] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[39] Natl Inst Phys & Nucl Engn, Bucharest, Romania

[40] Univ Politehn Bucuresti, Bucharest, Romania

[41] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina

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

[43] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada

[44] CERN, Geneva, Switzerland

[45] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[46] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile

[47] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[48] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[49] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China

[50] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 03期

基金：

巴西圣保罗研究基金会; 加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.87.032002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A measurement of the Lambda(0)(b) lifetime and mass in the decay channel Lambda(0)(b) -> J/psi (mu(+) mu(-))Lambda(0)(p pi(-)) is presented. The analysis uses a signal sample of about 2200 Lambda(0)(b) and (Lambda) over bar (0)(b) decays that are reconstructed in 4.9 fb(-1) of ATLAS pp collision data collected in 2011 at the LHC center-of-mass energy of 7 TeV. A simultaneous mass and decay time maximum likelihood fit is used to extract the Lambda(0)(b) lifetime and mass. They are measured to be tau(Lambda b) = 1.449 +/- 0.036(stat) +/- 0.017(syst) ps and m(Lambda b) = 5619.7 +/- 0.7(stat) +/- 1.1(syst) MeV. DOI: 10.1103/PhysRevD.87.032002

引用

页数：19

共 50 条

[31] A precise measurement of the B + , B0 and mean b-hadron lifetime with the DELPHI detector at LEP I
The European Physical Journal C - Particles and Fields, 2004, 33 : 307 - 324
[32] Measurement of B+, B0 and Λb0 production in pPb collisions at, √sNN=8.16 TeV
Aaij, R.
Beteta, C. Abellan
Adeva, B.
Adinolfi, M.
Aidala, C. A.
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.
Amerio, S.
Amhis, Y.
An, L.
Anderlini, L.
Andreassi, G.
Andreotti, M.
Andrews, J. E.
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.
Barrand, G. C.
Barsuk, S.
Barter, W.
Bartolini, M.
Baryshnikov, F.
Batozskaya, V
Batsukh, B.
Battig, A.
Battista, V
Bay, A.
Beddow, J.
Bedeschi, F.
PHYSICAL REVIEW D, 2019, 99 (05)
[33] Measurement of branching fractions of charmless four-body Λb0 and Ξb0 decays
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.
Romeu, J. Arnau
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, (02):
[34] Measurement of branching fractions of charmless four-body Λb0 and Ξb0 decays
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
[35] Observation of Λb0 → ψ (2S)pK- and Λb0 → J/ψπ+π-pK- decays and a measurement of the Ab0 baryon mass
Aaij, R.
Beteta, C. Abellan
Adeva, B.
Adinolfi, M.
Affolder, A.
Ajaltouni, Z.
Akar, S.
Albrecht, J.
Alessio, F.
Alexander, M.
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.
Gutierrez, O. Aquines
Archilli, F.
d'Argent, P.
Artamonov, A.
Artuso, M.
Aslanides, E.
Auriemma, G.
Baalouch, M.
Bachmann, S.
Back, J. J.
Badalov, A.
Baesso, C.
Baldini, W.
Barlow, R. J.
Barschel, C.
Barsuk, S.
Barter, W.
Batozskaya, V.
Battista, V.
Bay, A.
Beaucourt, L.
Beddow, J.
Bedeschi, F.
Bediaga, I.
Bel, L. J.
Bellee, V.
Belloli, N.
JOURNAL OF HIGH ENERGY PHYSICS, 2016, (05):
[36] MEASUREMENT OF THE B+ AND B0 MESON LIFETIMES
ABE, F
ALBROW, M
AMIDEI, D
ANWAYWIESE, C
APOLLINARI, G
ARETI, H
AUCHINCLOSS, P
AZFAR, F
AZZI, P
BACCHETTA, N
BADGETT, W
BAILEY, MW
BAO, J
DEBARBARO, P
BARBAROGALTIERI, A
BARNES, VE
BARNETT, BA
BARTALINI, P
BAUER, G
BAUMANN, T
BEDESCHI, F
BEHRENDS, S
BELFORTE, S
BELLETTINI, G
BELLINGER, J
BENJAMIN, D
BENLLOCH, J
BENTON, D
BERETVAS, A
BERGE, JP
BERTOLUCCI, S
BHATTI, A
BIERY, K
BINKLEY, M
BIRD, F
BISELLO, D
BLAIR, RE
BLOCKER, C
BODEK, A
BOLOGNESI, V
BORTOLETTO, D
BOSWELL, C
BOULOS, T
BRANDENBURG, G
BUCKLEYGEER, E
BUDD, HS
BURKETT, K
BUSETTO, G
BYONWAGNER, A
BYRUM, KL
PHYSICAL REVIEW LETTERS, 1994, 72 (22) : 3456 - 3460
[37] Measurement of CP asymmetry in B0 → f0K0s, B0 → φK0 and B0 → K+K-Ks0 decays
Kutter, PE
INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2005, 20 (15): : 3531 - 3534
[38] Measurement of the ratio of branching fractions B(B0 → K*0γ)/B(Bs0 → φγ) and the direct CP asymmetry in B0 → K*0γ
Aaij, R.
Abellan Beteta, C.
Adametz, A.
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.
Amhis, Y.
Anderlini, L.
Anderson, J.
Appleby, R. B.
Gutierrez, O. Aquines
Archilli, F.
Artamonov, A.
Artuso, M.
Aslanides, E.
Auriemma, G.
Bachmann, S.
Back, J. J.
Baesso, C.
Balagura, V.
Baldini, W.
Barlow, R. J.
Barschel, C.
Barsuk, S.
Barter, W.
Bates, A.
Bauer, C.
Bauer, Th.
Bay, A.
Beddow, J.
Bediaga, I.
Belogurov, S.
Belous, K.
Belyaev, I.
Ben-Haim, E.
Benayoun, M.
Bencivenni, G.
Benson, S.
Benton, J.
Berezhnoy, A.
NUCLEAR PHYSICS B, 2013, 867 (01) : 1 - 18
[39] Measurement of the ratio of branching fractions of the decays Λb0 → ψ(2S)Λ and Λb0 → J/ψΛ
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
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
F. Bedeschi
Journal of High Energy Physics, 2019
[40] Study of Excited Λb0 States in the CMS Experiment
Polikarpov, S.
BULLETIN OF THE LEBEDEV PHYSICS INSTITUTE, 2021, 48 (01) : 5 - 8

← 1 2 3 4 5 →