学术探索
学术期刊
新闻热点
数据分析
智能评审

Observation and mass measurement of the baryon Ξb-

被引：100
作者：
Aaltonen, T. [1 ]
Abulencia, A.
Adelman, J.
Affolder, T.
Akimoto, T.
Albrow, M. G.
Amerio, S.
Amidei, D.
Anastassov, A.
Anikeev, K.
Annovi, A.
Antos, J.
Aoki, M.
Apollinari, G.
Arisawa, T.
Artikov, A.
Ashmanskas, W.
Attal, A.
Aurisano, A.
Azfar, F.
Azzi-Bacchetta, P.
Azzurri, P.
Bacchetta, N.
Badgett, W.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Baroiant, S.
Bartsch, V.
Bauer, G.
Beauchemin, P. -H.
Bedeschi, F.
Behari, S.
Bellettini, G.
Bellinger, J.
Belloni, A.
Benjamin, D.
Beretvas, A.
Beringer, J.
Berry, T.
Bhatti, A.
Binkley, M.
Bisello, D.
Bizjak, I.
Blair, R. E.
Blocker, C.
Blumenfeld, B.
Bocci, A.
Bodek, A.
Boisvert, V.
机构：
[1] Okayama Univ, Okayama 7008530, Japan
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 05期
基金：
英国科学技术设施理事会;
关键词：
D O I：
10.1103/PhysRevLett.99.052002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the observation and measurement of the mass of the bottom, strange baryon Xi(-)(b) through the decay chain Xi(-)(b)-->J/psi Xi(-), where J/psi-->mu(+)mu(-), Xi(-)-->Lambda pi(-), and Lambda-->p pi(-). A signal is observed whose probability of arising from a background fluctuation is 6.6 x 10(-15), or 7.7 Gaussian standard deviations. The Xi(-)(b) mass is measured to be 5792.9 +/- 2.5(stat) +/- 1.7(syst) MeV/c(2).
引用
收藏
页数：7
相关论文
共 20 条
  • [1] AALTONEN T, ARXIV07063868
  • [2] Direct observation of the strange b baryon Ξb-
    Abazov, V. M.
    Abbott, B.
    Abolins, M.
    Acharya, B. S.
    Adams, M.
    Adams, T.
    Aguilo, E.
    Ahn, S. H.
    Ahsan, M.
    Alexeev, G. D.
    Alkhazov, G.
    Alton, A.
    Alverson, G.
    Alves, G. A.
    Anastasoaie, M.
    Ancu, L. S.
    Andeen, T.
    Anderson, S.
    Andrieu, B.
    Anzelc, M. S.
    Arnoud, Y.
    Arov, M.
    Arthaud, M.
    Askew, A.
    Asman, B.
    Jesus, A. C. S. Assis
    Atramentov, O.
    Autermann, C.
    Avila, C.
    Ay, C.
    Badaud, F.
    Baden, A.
    Bagby, L.
    Baldin, B.
    Bandurin, D. V.
    Banerjee, S.
    Banerjee, P.
    Barberis, E.
    Barfuss, A.-F.
    Bargassa, P.
    Baringer, P.
    Barreto, J.
    Bartlett, J. F.
    Bassler, U.
    Bauer, D.
    Beale, S.
    Bean, A.
    Begalli, M.
    Begel, M.
    Belanger-Champagne, C.
    [J]. PHYSICAL REVIEW LETTERS, 2007, 99 (05)
  • [3] EVIDENCE FOR TOP-QUARK PRODUCTION IN (P)OVER-BAR-P COLLISIONS AT ROOT-S=1.8 TEV
    ABE, F
    ALBROW, MG
    AMENDOLIA, SR
    AMIDEI, D
    ANTOS, J
    ANWAYWIESE, C
    APOLLINARI, G
    ARETI, H
    AUCHINCLOSS, P
    AUSTERN, M
    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
    BENSINGER, 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
    [J]. PHYSICAL REVIEW D, 1994, 50 (05): : 2966 - 3026
  • [4] A PERTURBATIVE APPROACH TO B-DECAYS INTO 2 PI-MESONS
    DAHM, M
    JAKOB, R
    KROLL, P
    [J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 68 (04): : 595 - 605
  • [5] Search for exotic S =-2 baryons in p(p)over-bar collisions at √s=1.96 TeV
    Abulencia, A.
    Adelman, J.
    Affolder, T.
    Akimoto, T.
    Albrow, M. G.
    Ambrose, D.
    Amerio, S.
    Amidei, D.
    Anastassov, A.
    Anikeev, K.
    Annovi, A.
    Antos, J.
    Aoki, M.
    Apollinari, G.
    Arguin, J. -F.
    Arisawa, T.
    Artikov, A.
    Ashmanskas, W.
    Attal, A.
    Azfar, F.
    Azzi-Bacchetta, P.
    Azzurri, P.
    Bacchetta, N.
    Badgett, W.
    Barbaro-Galtieri, A.
    Barnes, V. E.
    Barnett, B. A.
    Baroiant, S.
    Bartsch, V.
    Bauer, G.
    Bedeschi, F.
    Behari, S.
    Belforte, S.
    Bellettini, G.
    Bellinger, J.
    Belloni, A.
    Benjamin, D.
    Beretvas, A.
    Beringer, J.
    Berry, T.
    Bhatti, A.
    Binkley, M.
    Bisello, D.
    Blair, R. E.
    Blocker, C.
    Blumenfeld, B.
    Bocci, A.
    Bodek, A.
    Boisvert, V.
    Bolla, G.
    [J]. PHYSICAL REVIEW D, 2007, 75 (03):
  • [6] Measurement of bottom-quark hadron masses in exclusive J/ψ decays with the CDF detector
    Acosta, D.
    Adelman, J.
    Affolder, T.
    Akimoto, T.
    Albrow, M. G.
    Ambrose, D.
    Amerio, S.
    Amidei, D.
    Anastassov, A.
    Anikeev, K.
    Annovi, A.
    Antos, J.
    Aoki, M.
    Apollinari, G.
    Arisawa, T.
    Arguin, F.
    Artikov, A.
    Ashmanskas, W.
    Attal, A.
    Azfar, F.
    Azzi-Bacchetta, P.
    Bacchetta, N.
    Bachocou, H.
    Badgett, W.
    Barbaro-Galtieri, A.
    Barker, G. J.
    Barnes, V. E.
    Barnett, B. A.
    Baroiant, S.
    Bauer, G.
    Bedeschi, F.
    Behari, S.
    Belforte, S.
    Bellettini, G.
    Bellinger, J.
    Belloni, A.
    Ben-Haim, E.
    Benjamin, D.
    Beretvas, A.
    Berry, T.
    Bhatti, A.
    Binkley, M.
    Bisello, D.
    Bishai, M.
    Blair, R. E.
    Blocker, C.
    Bloom, K.
    Blumenfeld, B.
    Bocci, A.
    Bodek, A.
    [J]. PHYSICAL REVIEW LETTERS, 2006, 96 (20)
  • [7] Measurement of the J/ψ meson and b-hadron production cross sections in p(p)over-bar collisions at √s=1960 GeV -: art. no. 032001
    Acosta, D
    Adelman, J
    Affolder, T
    Akimoto, T
    Albrow, MG
    Ambrose, D
    Amerio, S
    Amidei, D
    Anastassov, A
    Anikeev, K
    Annovi, A
    Antos, J
    Aoki, M
    Apollinari, G
    Arisawa, T
    Arguin, JF
    Artikov, A
    Ashmanskas, W
    Attal, A
    Azfar, F
    Azzi-Bacchetta, P
    Bacchetta, N
    Bachacou, H
    Badgett, W
    Barbaro-Galtieri, A
    Barker, GJ
    Barnes, VE
    Barnett, BA
    Baroiant, S
    Barone, M
    Bauer, G
    Bedeschi, F
    Behari, S
    Belforte, S
    Bellettini, G
    Bellinger, J
    Ben-Haim, E
    Benjamin, D
    Beretvas, A
    Bhatti, A
    Binkley, M
    Bisello, D
    Bishai, M
    Blair, RE
    Blocker, C
    Bloom, K
    Blumenfeld, B
    Bocci, A
    Bodek, A
    Bolla, G
    [J]. PHYSICAL REVIEW D, 2005, 71 (03): : 032001 - 1
  • [8] THE SILICON VERTEX DETECTOR OF THE COLLIDER DETECTOR AT FERMILAB
    AMIDEI, D
    AZZI, P
    BACCHETTA, N
    BAILEY, MW
    BARNETT, B
    BEDESCHI, F
    BISELLO, D
    BOLOGNESI, V
    BOSWELL, C
    BUSETTO, G
    CARITHERS, WC
    CARTER, H
    CASTRO, A
    DELLAGNELLO, S
    DERWENT, PF
    DUCAR, R
    DUNN, A
    ELY, R
    FLAUGHER, B
    GALEOTTI, S
    BARBAROGALTIERI, A
    GARFINKEL, AF
    HABER, C
    HOLLAND, S
    HRYCYK, M
    HERRUP, D
    HUGHES, R
    KLEINFELDER, S
    LORETI, M
    MARIOTTI, M
    MATTHEWS, J
    MENZIONE, A
    MERRICK, T
    NELSON, C
    PESCARA, L
    PRODUIT, N
    PUNZI, G
    RAFFAELLI, F
    RISTORI, L
    SCHNEIDER, O
    SEGLER, S
    SHAPIRO, MD
    SHAW, NM
    SHAW, T
    SKARHA, J
    SNIDER, FD
    SONG, TY
    SPIES, A
    TIPTON, P
    TKACZYK, S
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 350 (1-2) : 73 - 130
  • [9] Brun R., CERNDD782REV
  • [10] Strange b baryon production and lifetime in Z decays
    Buskulic, D
    DeBonis, I
    Decamp, D
    Ghez, P
    Goy, C
    Lees, JP
    Lucotte, A
    Minard, MN
    Nief, JY
    Odier, P
    Pietrzyk, B
    Casado, MP
    Chmeissani, M
    Crespo, JM
    Delfino, M
    Efthymiopoulos, I
    Fernandez, E
    FernandezBosman, M
    Garrido, L
    Juste, A
    Martinez, M
    Orteu, S
    Padilla, C
    Park, IC
    Pascual, A
    Perlas, JA
    Riu, I
    Sanchez, F
    Teubert, F
    Coaleo, A
    Creanza, D
    dePalma, M
    Gelao, G
    Girone, M
    Iaselli, G
    Maggi, G
    Maggi, M
    Marinelli, N
    Nuzzo, S
    Ranieri, A
    Raso, G
    Ruggieri, F
    Selvaggi, G
    Silvestris, L
    Tempesta, P
    Zito, G
    Huang, X
    Lin, J
    Ouyang, Q
    Wang, T
    [J]. PHYSICS LETTERS B, 1996, 384 (1-4) : 449 - 460
12