Measurement of the transverse spin correlations in the decay Z->tau(+)tau(-)

被引：11

作者：

Barate, R

Buskulic, D

Decamp, D

Ghez, P

Goy, C

Lees, JP

Lucotte, A

Minard, MN

Nief, JY

Pietrzyk, B

Casado, MP

Chmeissani, M

Comas, P

Crespo, JM

Delfino, M

Fernandez, E

FernandezBosman, M

Garrido, L

Juste, A

Martinez, M

Miquel, R

Mir, LM

Orteu, S

Padilla, C

Park, IC

Pascual, A

Perlas, JA

Riu, I

Sanchez, F

Teubert, F

Colaleo, A

Creanza, D

dePalma, M

Gelao, G

Iaselli, G

Maggi, G

Maggi, M

Marinelli, N

Nuzzo, S

Ranieri, A

Raso, G

Ruggieri, F

Selvaggi, G

Silvestris, L

Tempesta, P

Tricomi, A

Zito, G

Huang, X

Lin, J

Ouyang, Q

机构：

[1] UNIV AUTONOMA BARCELONA, INST FIS ALTES ENERGIES, BELLATERRA 08193, BARCELONA, SPAIN

[2] IST NAZL FIS NUCL, SEZ BARI, DIPARTIMENTO FIS, I-70126 BARI, ITALY

[3] ACAD SINICA, INST HIGH ENERGY PHYS, BEIJING, PEOPLES R CHINA

[4] CERN, EUROPEAN LAB PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND

[5] NIELS BOHR INST, DK-2100 COPENHAGEN, DENMARK

[6] DEMOCRITOS NUCL RES CTR, ATHENS, GREECE

[7] ECOLE POLYTECH, CNRS, IN2P3, LAB PHYS NUCL & HAUTES ENERGIES, F-91128 PALAISEAU, FRANCE

[8] UNIV EDINBURGH, DEPT PHYS, EDINBURGH EH9 3JZ, MIDLOTHIAN, SCOTLAND

[9] UNIV FLORENCE, DIPARTIMENTO FIS, IST NAZL FIS NUCL, SEZ FIRENZE, I-50125 FLORENCE, ITALY

[10] FLORIDA STATE UNIV, SUPERCOMP COMPUTAT RES INST, TALLAHASSEE, FL 32306 USA

[11] IST NAZL FIS NUCL, LAB NAZL FRASCATI, I-00044 FRASCATI, ITALY

[12] UNIV GLASGOW, DEPT PHYS & ASTRON, GLASGOW G12 8QQ, LANARK, SCOTLAND

[13] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED, DEPT PHYS, LONDON SW7 2BZ, ENGLAND

[14] UNIV INNSBRUCK, INST EXPT PHYS, A-6020 INNSBRUCK, AUSTRIA

[15] UNIV LANCASTER, DEPT PHYS, LANCASTER LA1 4YB, ENGLAND

[16] UNIV MAINZ, INST PHYS, D-55099 MAINZ, GERMANY

[17] FAC SCI LUMINY, IN2P3, CNR, CTR PHYS PARTICULES, F-13288 MARSEILLE, FRANCE

[18] UNIV MILAN, DIPARTIMENTO FIS, I-20133 MILAN, ITALY

[19] IST NAZL FIS NUCL, SEZ MILANO, I-20133 MILAN, ITALY

[20] UNIV PARIS 11, IN2P3, CNRS, ACCELERATEUR LINEAIRE LAB, F-91405 ORSAY, FRANCE

[21] UNIV CLERMONT FERRAND, IN2P3, CNRS, PHYS CORPUSCULAIRE LAB, F-63177 AUBIERE, FRANCE

[22] MAX PLANCK INST PHYS & ASTROPHYS, WERNER HEISENBERG INST, D-80805 MUNICH, GERMANY

[23] UNIV PISA, IST NAZL FIS NUCL, SEZ PISA, DIPARTIMENTO FIS, I-56010 PISA, ITALY

[24] SCUOLA NORMALE SUPER PISA, I-56010 PISA, ITALY

[25] UNIV LONDON, ROYAL HOLLOWAY & BEDFORD NEW COLL, DEPT PHYS, SURREY TW20 0EX, ENGLAND

[26] RUTHERFORD APPLETON LAB, PARTICLE PHYS DEPT, DIDCOT OX11 0QX, OXON, ENGLAND

[27] CTR ETUD SACLAY, CEA, DAPNIA, SERV PHYS PARTICULES, F-91191 GIF SUR YVETTE, FRANCE

[28] UNIV CALIF SANTA CRUZ, INST PARTICLE PHYS, SANTA CRUZ, CA 95064 USA

[29] UNIV SHEFFIELD, DEPT PHYS, SHEFFIELD S3 7RH, S YORKSHIRE, ENGLAND

[30] UNIV SIEGEN, FACHBEREICH PHYS, D-57068 SIEGEN, GERMANY

[31] UNIV TRIESTE, DIPARTIMENTO FIS, I-34127 TRIESTE, ITALY

[32] IST NAZL FIS NUCL, SEZ TRIESTE, I-34127 TRIESTE, ITALY

[33] UNIV WASHINGTON, SEATTLE, WA 98195 USA

[34] UNIV WISCONSIN, DEPT PHYS, MADISON, WI 53706 USA

[35] IST NAZL FIS NUCL, SEZ CATANIA, DIPARTIMENTO FIS, I-95129 CATANIA, ITALY

[36] UNIV TURIN, IST FIS GEN, TURIN, ITALY

[37] UNIV BARCELONA, BARCELONA 08208, SPAIN

[38] UNIV SASSARI, IST MATEMAT & FIS, I-07100 SASSARI, ITALY

[39] SUNGKYUNKWAN UNIV, SUWON, SOUTH KOREA

[40] UNIV HEIDELBERG, INST HOCHENERGIEPHYS, D-69120 HEIDELBERG, GERMANY

[41] KANGNANG NATL UNIV, KANGNUNG, SOUTH KOREA

来源：

PHYSICS LETTERS B | 1997年 / 405卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(97)00664-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

For tau leptons produced in e(+)e(-) --> tau(+)tau(-) interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the transverse (within the production plane) and normal (to the production plane) polarization components. A measurement of the transverse-transverse and transverse-normal tau spin correlations in the decay Z --> tau(+)tau(-), C-TT and C-TN, is presented based on the aplanarity angle of the decay products of both tau leptons. Using 80 pb(-1) of data collected by ALEPH on the peak of the Z resonance, the results are C-TT = 1.06 +/- 0.13(stat) +/- 0.05(syst), and C-TN = 0.08 +/- 0.13(stat) +/- 0.04(syst). These values are in agreement with the Standard Model predictions, C-TT = 0.99 and C-TN = -0.01. (C) 1997 Published by Elsevier Science B.V.

引用

页码：191 / 201

页数：11

共 29 条

[1] A MEASUREMENT OF tau-POLARIZATION AT LEP [J].

ACCIARRI, M ;

ADAMS, A ;

ADRIANI, O ;

AGUILARBENITEZ, M ;

AHLEN, S ;

ALCARAZ, J ;

ALOISIO, A ;

ALVERSON, G ;

ALVIGGI, MG ;

AMBROSI, G ;

AN, Q ;

ANDERHUB, H ;

ANDERSON, AL ;

ANDREEV, VP ;

ANGELESCU, T ;

ANTONOV, L ;

ANTREASYAN, D ;

ALKHAZOV, G ;

ARCE, P ;

AREFIEV, A ;

AZEMOON, T ;

AZIZ, T ;

BABA, PVKS ;

BAGNAIA, P ;

BAKKEN, JA ;

BAKSAY, L ;

BALL, RC ;

BANERJEE, S ;

BANICZ, K ;

BARILLERE, R ;

BARONE, L ;

BASCHIROTTO, A ;

BASILE, M ;

BATTISTON, R ;

BAY, A ;

BECATTINI, F ;

BECKER, U ;

BEHNER, F ;

BENCZE, GL ;

BERDUGO, J ;

BERGES, P ;

BERTUCCI, B ;

BETEV, BL ;

BIASINI, M ;

BILAND, A ;

BILEI, GM ;

BIZZARRI, R ;

BLAISING, JJ ;

BOBBINK, GJ ;

BOCK, R .

PHYSICS LETTERS B, 1994, 341 (02) :245-256

[2] TEST OF CP-INVARIANCE IN E+E- -] Z(0)-]TAU+TAU- AND A LIMIT ON THE WEAK DIPOLE-MOMENT OF THE TAU LEPTON [J].

ACTON, PD ;

ALEXANDER, G ;

ALLISON, J ;

ALLPORT, PP ;

ANDERSON, KJ ;

ARCELLI, S ;

ASHTON, P ;

ASTBURY, A ;

AXEN, D ;

AZUELOS, G ;

BAHAN, GA ;

BAINES, JTM ;

BALL, AH ;

BANKS, J ;

BARKER, GJ ;

BARLOW, RJ ;

BATLEY, JR ;

BEAUDOIN, G ;

BECK, A ;

BECKER, J ;

BEHNKE, T ;

BELL, KW ;

BELLA, G ;

BERLICH, P ;

BETHKE, S ;

BIEBEL, O ;

BINDER, U ;

BLOODWORTH, IJ ;

BOCK, P ;

BODEN, B ;

BOSCH, HM ;

BOUGEROLLE, S ;

BRABSON, BB ;

BREUKER, H ;

BROWN, RM ;

BRUN, R ;

BUIJS, A ;

BURCKHART, HJ ;

CAPILUPPI, P ;

CARNEGIE, RK ;

CARTER, AA ;

CARTER, JR ;

CHANG, CY ;

CHARLTON, DG ;

CLARKE, PEL ;

COHEN, I ;

COLLINS, WJ ;

CONBOY, JE ;

COOPER, M ;

COUCH, M .

PHYSICS LETTERS B, 1992, 281 (3-4) :405-415

[3] A MEASUREMENT OF TAU POLARIZATION IN Z0 DECAYS [J].

ADRIANI, O ;

AGUILARBENITEZ, M ;

AHLEN, S ;

AKBARI, H ;

ALCARAZ, J ;

ALOISIO, A ;

ALVERSON, G ;

ALVIGGI, MG ;

AMBROSI, G ;

AN, Q ;

ANDERHUB, H ;

ANDERSON, AL ;

ANDREEV, VP ;

ANGELOV, T ;

ANTONOV, L ;

ANTREASYAN, D ;

ARCE, P ;

AREFIEV, A ;

ATAMANCHUK, A ;

AZEMOON, T ;

AZIZ, T ;

BABA, PVKS ;

BAGNAIA, P ;

BAKKEN, JA ;

BAKSAY, L ;

BALL, RC ;

BANERJEE, S ;

BAO, J ;

BARILLERE, R ;

BARONE, L ;

BASCHIROTTO, A ;

BATTISTON, R ;

BAY, A ;

BECATTINI, F ;

BECKER, U ;

BEHNER, F ;

BEHRENS, J ;

BEINGESSNER, S ;

BENCZE, GL ;

BERDUGO, J ;

BERGES, P ;

BERTUCCI, B ;

BETEV, BL ;

BIASINI, M ;

BILAND, A ;

BILEI, GM ;

BIZZARRI, R ;

BLAISING, JJ ;

BLUMENFELD, B ;

BOBBINK, GJ .

PHYSICS LETTERS B, 1992, 294 (3-4) :466-478

[4]

*ALEPH COLL, 1996, PA08030

[5]

*ALEPH COLL, 1996, Z PHYS C, V69, P183

[6]

*ALEPH COLL, 1996, Z PHYS C, V70, P561

[7]

ALEPH Collaboration, 1996, Z PHYS C, V70, P579, DOI [10.1007/s002880050134, DOI 10.1007/S002880050134]

[8] MEASUREMENT OF BRANCHING RATIOS AND TAU-POLARIZATION FROM TAU-]E-NU-NU-BAR,TAU-]MU-NU-NU-BAR, AND TAU-]PI(K)NU DECAYS AT LEP [J].

ALEXANDER, G .

PHYSICS LETTERS B, 1991, 266 (1-2) :201-217

[9]

[Anonymous], Z PHYS C

[10] Particles and field .1. Review of particle physics [J].

Barnett, RM ;

Carone, CD ;

Groom, DE ;

Trippe, TG ;

Wohl, CG ;

Armstrong, B ;

Gee, PS ;

Wagman, GS ;

James, F ;

Mangano, M ;

Monig, K ;

Montanet, L ;

Feng, JL ;

Murayama, H ;

Hernandez, JJ ;

Manohar, A ;

AguilarBenitez, M ;

Caso, C ;

Crawford, RL ;

Roos, M ;

Tornqvist, NA ;

Hayes, KG ;

Hagiwara, K ;

Nakamura, K ;

Tanabashi, M ;

Olive, K ;

Honscheid, K ;

Burchat, PR ;

Shrock, RE ;

Eidelman, S ;

Schindler, RH ;

Gurtu, A ;

Hikasa, K ;

Conforto, G ;

Workman, RL ;

Grab, C ;

Amsler, C .

PHYSICAL REVIEW D, 1996, 54 (01) :1-+

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