Measurement of Lambda(0)-(Lambda(0))over-bar mass difference

被引：0
|
作者：
Rybicki, K
机构：
来源：
ACTA PHYSICA POLONICA B | 1996年 / 27卷 / 09期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We measure the masses of of Lambda(0) and <(Lambda(0))over bar> hyperons using a very clean sample of 30844 hyperons produced in 230 GeV/c pi(-)-Cu interactions and decaying in a silicon vertex detector. Systematic errors were estimated by using K-s(0) decays registered in the same vertex detector. For the average Lambda(0)/<(Lambda(0))over bar> mass we obtain (1115.766 +/- 0.006 +/- 0.042) MeV/c(2). The mass difference M(Lambda) - M(<(Lambda)over bar>) = (0.015 +/- 0.013) MeV/c(2) averaged with the E766 result of (-0.012 +/- 0.010) MeV/c(2) yields (-0.002 +/- 0.008) MeV/c(2). This confirms the CPT invariance within the accuracy of 7 x 10(-6).
引用
收藏
页码：2155 / 2158
页数：4
相关论文
共 50 条
  • [1] A first measurement of the Lambda(Lambda)over-bar and Lambda Lambda ((Lambda)over-bar(Lambda)over-bar) spin compositions in hadronic Z(0) decays
    Alexander, G
    Allison, J
    Altekamp, N
    Ametewee, K
    Anderson, KJ
    Anderson, S
    Arcelli, S
    Asai, S
    Axen, D
    Azuelos, G
    Ball, AH
    Barberio, E
    Barlow, RJ
    Bartoldus, R
    Batley, JR
    Beaudoin, G
    Bechtluft, J
    Beeston, C
    Behnke, T
    Bell, AN
    Bell, KW
    Bella, G
    Bentvelsen, S
    Berlich, P
    Bethke, S
    Biebel, O
    Blobel, V
    Bloodworth, IJ
    Bloomer, JE
    Bock, P
    Bosch, HM
    Boutemeur, M
    Bouwens, BT
    Braibant, S
    Brown, RM
    Burckhart, HJ
    Burgard, C
    Burgin, R
    Capiluppi, P
    Carnegie, RK
    Carter, AA
    Carter, JR
    Chang, CY
    Charlesworth, C
    Charlton, DG
    Chrisman, D
    Chu, SL
    Clarke, PEL
    Cohen, I
    Conboy, JE
    PHYSICS LETTERS B, 1996, 384 (1-4) : 377 - 387
  • [2] Mass determinations for Lambda(0) and (Lambda)over-bar(0) produced in pp reactions
    Buenrostro, EA
    Quintero, GI
    Felix, J
    REVISTA MEXICANA DE FISICA, 1997, 43 (03) : 482 - 488
  • [3] Measurement of the Lambda(b)(0) lifetime using Lambda(b)(0)->Lambda(c)(+)l(-)(nu)over-bar
    Abe, F
    Akimoto, H
    Akopian, A
    Albrow, MG
    Amendolia, SR
    Amidei, D
    Antos, J
    AnwayWiese, C
    Aota, S
    Apollinari, G
    Asakawa, T
    Ashmanskas, W
    Atac, M
    Azfar, F
    AzziBacchetta, P
    Bacchetta, N
    Badgett, W
    Bagdasarov, S
    Bailey, MW
    Bao, J
    deBarbaro, P
    BarbaroGaltieri, A
    Barnes, VE
    Barnett, BA
    Barzi, E
    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
    Berryhill, J
    Bertolucci, S
    Bhatti, A
    Biery, K
    Binkley, M
    Bisello, D
    Blair, RE
    Blocker, C
    Bodek, A
    Bokhari, W
    Bolognesi, V
    Bortoletto, D
    PHYSICAL REVIEW LETTERS, 1996, 77 (08) : 1439 - 1443
  • [4] PRODUCTION OF LAMBDA AND LAMBDA(LAMBDA)OVER-BAR CORRELATIONS IN THE HADRONIC DECAYS OF THE Z(0)
    ABREU, P
    ADAM, W
    ADYE, T
    AGASI, E
    ALEKSAN, R
    ALEKSEEV, GD
    ALGERI, A
    ALLEN, P
    ALMEHED, S
    ALVSVAAG, SJ
    AMALDI, U
    ANDREAZZA, A
    ANTILOGUS, P
    APEL, WD
    APSIMON, RJ
    ARNOUD, Y
    ASMAN, B
    AUGUSTIN, JE
    AUGUSTINUS, A
    BAILLON, P
    BAMBADE, P
    BARAO, F
    BARATE, R
    BARBIELLINI, G
    BARDIN, DY
    BARKER, GJ
    BARONCELLI, A
    BARRING, O
    BARRIO, JA
    BARTL, W
    BATES, MJ
    BATTAGLIA, M
    BAUBILLIER, M
    BECKS, KH
    BEGALLI, M
    BEILLIERE, P
    BELOKOPYTOV, Y
    BELTRAN, P
    BENEDIC, D
    BENVENUTI, AC
    BERGGREN, M
    BERTRAND, D
    BIANCHI, F
    BILENKY, MS
    BILLOIR, P
    BJARNE, J
    BLOCH, D
    BLOCKI, J
    BLYTH, S
    BOCCI, V
    PHYSICS LETTERS B, 1993, 318 (01) : 249 - 262
  • [5] B physics on the lattice: (Lambda)over-bar, lambda(1), (m)over-bar(b)((m)over-bar(b)), lambda(2), B-0-(B)over-bar(0) mixing, f(B) and all that
    Gimenez, V
    Martinelli, G
    Sachrajda, CT
    NUCLEAR PHYSICS B, 1997, : 365 - 367
  • [6] PRECISE MEASUREMENT OF THE LAMBDA-0 AND LAMBDA-OVER-BAR(0) MASSES AND A TEST OF CPT INVARIANCE
    HARTOUNI, EP
    JENSEN, DA
    KREISLER, MN
    URIBE, J
    CHURCH, MD
    GOTTSCHALK, EE
    KNAPP, BC
    STERN, BJ
    WIENCKE, LR
    CHRISTIAN, DC
    GUTIERREZ, G
    WEHMANN, A
    AVILEZ, C
    FORBUSH, M
    HUSON, FR
    WHITE, JT
    PHYSICAL REVIEW LETTERS, 1994, 72 (09) : 1322 - 1325
  • [7] Measurement of the (p)over-bar-p->(Lambda)over-bar-Lambda and (p)over-bar-p->(Sigma)over-bar(0)Lambda+cc reactions at 1.726 and 1.771 GeV/c
    Barnes, PD
    Franklin, G
    Quinn, B
    Schumacher, RA
    Zeps, V
    Hamann, N
    Dutty, W
    Fischer, H
    Franz, J
    Rossle, E
    Schmitt, H
    Todenhagen, R
    vonFrankenberg, R
    Kilian, K
    Oelert, W
    Rohrich, K
    Sachs, K
    Sefzick, T
    Ziolkowski, M
    Eisenstein, RA
    Harris, PG
    Hertzog, DW
    Hughes, SA
    Reimer, PE
    Tayloe, RL
    Eyrich, W
    Geyer, R
    Kirsch, M
    Kraft, RA
    Stinzing, F
    Johansson, T
    Ohlsson, S
    PHYSICAL REVIEW C, 1996, 54 (06): : 2831 - 2842
  • [8] PHENOMENOLOGICAL CONSTRAINTS ON (LAMBDA)OVER-BAR AND LAMBDA(1)
    LIGETI, Z
    NIR, Y
    PHYSICAL REVIEW D, 1994, 49 (09): : R4331 - R4334
  • [9] MEASUREMENT OF THE POLARIZATION OF LAMBDA(0), (LAMBDA)OVER-BAR-(0), SIGMA(+) AND XI(-) PRODUCED IN A SIGMA(-)-BEAM OF 330-GEV/C
    ADAMOVICH, ML
    ALBERTSON, E
    ALEXANDROV, YA
    BARBERIS, D
    BERAT, C
    BEUSCH, W
    BRENZINGER, KH
    BRONS, S
    BRUCKNER, W
    BRUNENGO, A
    BUENERD, M
    CHARIGNON, F
    CHAUVIN, J
    CHUDAKOV, EA
    DAMERI, M
    DROPMANN, F
    ENGELFRIED, J
    FALLER, F
    FRENCH, BR
    GERASSIMOV, SG
    GODBERSEN, M
    GRAFSTROM, P
    HOSTACHY, JY
    HURST, RB
    KALLAKOWSKY, TH
    KLUTH, S
    LAUBER, HM
    LENNERT, P
    LJUNGFELT, S
    MARTENS, K
    MARTIN, PH
    MICHAELS, R
    MULLER, U
    NEWSOM, C
    OSCULATI, B
    PAUL, S
    POVH, B
    REYCAMPAGNOLLE, M
    RIESEBERG, H
    ROHRICH, K
    ROSNER, G
    ROSSI, L
    RUDOLPH, H
    SCHEEL, C
    SCHMITT, L
    SIEBERT, HW
    SIMON, A
    TROMBINI, A
    TOUILLON, R
    VOLKEMER, B
    ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1995, 350 (04): : 379 - 386
  • [10] Measurement of ψ(3686) → Λ(Λ)over-barη and ψ(3686) → Λ(Λ)over-barπ0 decays
    Ablikim, M.
    Achasov, M. N.
    Adlarson, P.
    Albrecht, M.
    Aliberti, R.
    Amoroso, A.
    An, M. R.
    An, Q.
    Bai, X. H.
    Bai, Y.
    Bakina, O.
    Ferroli, R. Baldini
    Balossino, I
    Ban, Y.
    Batozskaya, V
    Becker, D.
    Begzsuren, K.
    Berger, N.
    Bertani, M.
    Bettoni, D.
    Bianchi, F.
    Bloms, J.
    Bortone, A.
    Boyko, I
    Briere, R. A.
    Brueggemann, A.
    Cai, H.
    Cai, X.
    Calcaterra, A.
    Cao, G. F.
    Cao, N.
    Cetin, S. A.
    Chang, J. F.
    Chang, W. L.
    Chelkov, G.
    Chen, C.
    Chen, Chao
    Chen, G.
    Chen, H. S.
    Chen, M. L.
    Chen, S. J.
    Chen, S. M.
    Chen, T.
    Chen, X. R.
    Chen, X. T.
    Chen, Y. B.
    Chen, Z. J.
    Cheng, W. S.
    Choi, S. K.
    Chu, X.
    PHYSICAL REVIEW D, 2022, 106 (07)
12345