Rapidity-alignment and p T compensation of particle pairs in hadronic Z 0 decays

Christopher Parkes; J. Abdallah; P. Abreu; W. Adam; P. Adzic; T. Albrecht; T. Alderweireld; R. Alemany-Fernandez; T. Allmendinger; P. P. Allport; S. Almehed; U. Amaldi; N. Amapane; S. Amato; E. Anashkin; A. Andreazza; S. Andringa; N. Anjos; P. Antilogus; W. D. Apel; Y. Arnoud; S. Ask; B. Asman; J. E. Augustin; A. Augustinus; P. Baillon; A. Ballestrero; P. Bambade; R. Barbier; D. Bardin; G. Barker; A. Baroncelli; M. Battaglia; M. Baubillier; K. H. Becks; M. Begalli; A. Behrmann; T. Bellunato; N. Benekos; A. Benvenuti; C. Berat; M. Berggren; L. Berntzon; D. Bertrand; M. Besancon; N. Besson; D. Bloch; M. Blom; M. Bonesini; M. Boonekamp; P. S L Booth; G. Borisov; O. Botner; B. Bouquet; T. J V Bowcock; I. Boyko; M. Bracko; R. Brenner; E. Brodet; J. Brodzicka; P. Bruckman; J. M. Brunet; L. Bugge; P. Buschmann; M. Calvi; T. Camporesi; V. Canale; F. Carena; C. Carimalo; N. Castro; F. Cavallo; M. Chapkin; Ph Charpentier; P. Checchia; R. Chierici; P. Chliapnikov; S. U. Chung; K. Cieslik; P. Collins; R. Contri; G. Cosme; F. Cossutti; M. J. Costa; B. Crawley; D. Crennell; J. Cuevas; J. D'Hondt; J. Dalmau; T. Da Silva; W. Da Silva; G. Della Ricca; A. De Angelis; W. De Boer; C. De Clercq; B. De Lotto

doi:10.1016/S0370-2693(02)01658-1

Rapidity-alignment and p T compensation of particle pairs in hadronic Z 0 decays

Christopher Parkes, J. Abdallah, P. Abreu, W. Adam, P. Adzic, T. Albrecht, T. Alderweireld, R. Alemany-Fernandez, T. Allmendinger, P. P. Allport, S. Almehed, U. Amaldi, N. Amapane, S. Amato, E. Anashkin, A. Andreazza, S. Andringa, N. Anjos, P. Antilogus, W. D. ApelY. Arnoud, S. Ask, B. Asman, J. E. Augustin, A. Augustinus, P. Baillon, A. Ballestrero, P. Bambade, R. Barbier, D. Bardin, G. Barker, A. Baroncelli, M. Battaglia, M. Baubillier, K. H. Becks, M. Begalli, A. Behrmann, T. Bellunato, N. Benekos, A. Benvenuti, C. Berat, M. Berggren, L. Berntzon, D. Bertrand, M. Besancon, N. Besson, D. Bloch, M. Blom, M. Bonesini, M. Boonekamp, P. S L Booth, G. Borisov, O. Botner, B. Bouquet, T. J V Bowcock, I. Boyko, M. Bracko, R. Brenner, E. Brodet, J. Brodzicka, P. Bruckman, J. M. Brunet, L. Bugge, P. Buschmann, M. Calvi, T. Camporesi, V. Canale, F. Carena, C. Carimalo, N. Castro, F. Cavallo, M. Chapkin, Ph Charpentier, P. Checchia, R. Chierici, P. Chliapnikov, S. U. Chung, K. Cieslik, P. Collins, R. Contri, G. Cosme, F. Cossutti, M. J. Costa, B. Crawley, D. Crennell, J. Cuevas, J. D'Hondt, J. Dalmau, T. Da Silva, W. Da Silva, G. Della Ricca, A. De Angelis, W. De Boer, C. De Clercq, B. De Lotto

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Abstract

Observation is made of rapidity-alignment of K +K - and pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The K +K - and pp data are consistent with predictions from the fragmentation string model. However, the pp data strongly disagree with the conventional implementation of the cluster model. The non-perturbative process of 'gluon splitting to diquarks' has to be incorporated into the cluster model for it to agree with the data. Local conservation of p T between particles nearby in rapidity (i.e., p T compensation) is analysed with respect to the thrust direction for π +π -, K +K -, and pp pairs. In this case, the string model provides fair agreement with the data. The cluster model is incompatible with the data for all three particle pairs. The model with its central premiss of isotropically-decaying clusters predicts a PT correlation not seen in the data. © 2002 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	243-252
Number of pages	9
Journal	Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	533
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(02)01658-1
Publication status	Published - 9 May 2002

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Parkes, C., Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., Alemany-Fernandez, R., Allmendinger, T., Allport, P. P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anashkin, E., Andreazza, A., Andringa, S., Anjos, N., Antilogus, P., ... De Lotto, B. (2002). Rapidity-alignment and p T compensation of particle pairs in hadronic Z 0 decays. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 533(3-4), 243-252. https://doi.org/10.1016/S0370-2693(02)01658-1

@article{f3192b90b3d34d6792e5fd48dae7b387,

title = "Rapidity-alignment and p T compensation of particle pairs in hadronic Z 0 decays",

abstract = "Observation is made of rapidity-alignment of K +K - and pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The K +K - and pp data are consistent with predictions from the fragmentation string model. However, the pp data strongly disagree with the conventional implementation of the cluster model. The non-perturbative process of 'gluon splitting to diquarks' has to be incorporated into the cluster model for it to agree with the data. Local conservation of p T between particles nearby in rapidity (i.e., p T compensation) is analysed with respect to the thrust direction for π +π -, K +K -, and pp pairs. In this case, the string model provides fair agreement with the data. The cluster model is incompatible with the data for all three particle pairs. The model with its central premiss of isotropically-decaying clusters predicts a PT correlation not seen in the data. {\textcopyright} 2002 Elsevier Science B.V. All rights reserved.",

author = "Christopher Parkes and J. Abdallah and P. Abreu and W. Adam and P. Adzic and T. Albrecht and T. Alderweireld and R. Alemany-Fernandez and T. Allmendinger and Allport, {P. P.} and S. Almehed and U. Amaldi and N. Amapane and S. Amato and E. Anashkin and A. Andreazza and S. Andringa and N. Anjos and P. Antilogus and Apel, {W. D.} and Y. Arnoud and S. Ask and B. Asman and Augustin, {J. E.} and A. Augustinus and P. Baillon and A. Ballestrero and P. Bambade and R. Barbier and D. Bardin and G. Barker and A. Baroncelli and M. Battaglia and M. Baubillier and Becks, {K. H.} and M. Begalli and A. Behrmann and T. Bellunato and N. Benekos and A. Benvenuti and C. Berat and M. Berggren and L. Berntzon and D. Bertrand and M. Besancon and N. Besson and D. Bloch and M. Blom and M. Bonesini and M. Boonekamp and Booth, {P. S L} and G. Borisov and O. Botner and B. Bouquet and Bowcock, {T. J V} and I. Boyko and M. Bracko and R. Brenner and E. Brodet and J. Brodzicka and P. Bruckman and Brunet, {J. M.} and L. Bugge and P. Buschmann and M. Calvi and T. Camporesi and V. Canale and F. Carena and C. Carimalo and N. Castro and F. Cavallo and M. Chapkin and Ph Charpentier and P. Checchia and R. Chierici and P. Chliapnikov and Chung, {S. U.} and K. Cieslik and P. Collins and R. Contri and G. Cosme and F. Cossutti and Costa, {M. J.} and B. Crawley and D. Crennell and J. Cuevas and J. D'Hondt and J. Dalmau and {Da Silva}, T. and {Da Silva}, W. and {Della Ricca}, G. and {De Angelis}, A. and {De Boer}, W. and {De Clercq}, C. and {De Lotto}, B.",

year = "2002",

month = may,

day = "9",

doi = "10.1016/S0370-2693(02)01658-1",

language = "English",

volume = "533",

pages = "243--252",

journal = "Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier BV",

number = "3-4",

}

Parkes, C, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, Alemany-Fernandez, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, WD, Arnoud, Y, Ask, S, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Bellunato, T, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bloch, D, Blom, M, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Botner, O, Bouquet, B, Bowcock, TJV, Boyko, I, Bracko, M, Brenner, R, Brodet, E, Brodzicka, J, Bruckman, P, Brunet, JM, Bugge, L, Buschmann, P, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carimalo, C, Castro, N, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chierici, R, Chliapnikov, P, Chung, SU, Cieslik, K, Collins, P, Contri, R, Cosme, G, Cossutti, F, Costa, MJ, Crawley, B, Crennell, D, Cuevas, J, D'Hondt, J, Dalmau, J, Da Silva, T, Da Silva, W, Della Ricca, G, De Angelis, A, De Boer, W, De Clercq, C & De Lotto, B 2002, 'Rapidity-alignment and p T compensation of particle pairs in hadronic Z 0 decays', Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 533, no. 3-4, pp. 243-252. https://doi.org/10.1016/S0370-2693(02)01658-1

TY - JOUR

T1 - Rapidity-alignment and p T compensation of particle pairs in hadronic Z 0 decays

AU - Parkes, Christopher

AU - Abdallah, J.

AU - Abreu, P.

AU - Adam, W.

AU - Adzic, P.

AU - Albrecht, T.

AU - Alderweireld, T.

AU - Alemany-Fernandez, R.

AU - Allmendinger, T.

AU - Allport, P. P.

AU - Almehed, S.

AU - Amaldi, U.

AU - Amapane, N.

AU - Amato, S.

AU - Anashkin, E.

AU - Andreazza, A.

AU - Andringa, S.

AU - Anjos, N.

AU - Antilogus, P.

AU - Apel, W. D.

AU - Arnoud, Y.

AU - Ask, S.

AU - Asman, B.

AU - Augustin, J. E.

AU - Augustinus, A.

AU - Baillon, P.

AU - Ballestrero, A.

AU - Bambade, P.

AU - Barbier, R.

AU - Bardin, D.

AU - Barker, G.

AU - Baroncelli, A.

AU - Battaglia, M.

AU - Baubillier, M.

AU - Becks, K. H.

AU - Begalli, M.

AU - Behrmann, A.

AU - Bellunato, T.

AU - Benekos, N.

AU - Benvenuti, A.

AU - Berat, C.

AU - Berggren, M.

AU - Berntzon, L.

AU - Bertrand, D.

AU - Besancon, M.

AU - Besson, N.

AU - Bloch, D.

AU - Blom, M.

AU - Bonesini, M.

AU - Boonekamp, M.

AU - Booth, P. S L

AU - Borisov, G.

AU - Botner, O.

AU - Bouquet, B.

AU - Bowcock, T. J V

AU - Boyko, I.

AU - Bracko, M.

AU - Brenner, R.

AU - Brodet, E.

AU - Brodzicka, J.

AU - Bruckman, P.

AU - Brunet, J. M.

AU - Bugge, L.

AU - Buschmann, P.

AU - Calvi, M.

AU - Camporesi, T.

AU - Canale, V.

AU - Carena, F.

AU - Carimalo, C.

AU - Castro, N.

AU - Cavallo, F.

AU - Chapkin, M.

AU - Charpentier, Ph

AU - Checchia, P.

AU - Chierici, R.

AU - Chliapnikov, P.

AU - Chung, S. U.

AU - Cieslik, K.

AU - Collins, P.

AU - Contri, R.

AU - Cosme, G.

AU - Cossutti, F.

AU - Costa, M. J.

AU - Crawley, B.

AU - Crennell, D.

AU - Cuevas, J.

AU - D'Hondt, J.

AU - Dalmau, J.

AU - Da Silva, T.

AU - Da Silva, W.

AU - Della Ricca, G.

AU - De Angelis, A.

AU - De Boer, W.

AU - De Clercq, C.

AU - De Lotto, B.

PY - 2002/5/9

Y1 - 2002/5/9

N2 - Observation is made of rapidity-alignment of K +K - and pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The K +K - and pp data are consistent with predictions from the fragmentation string model. However, the pp data strongly disagree with the conventional implementation of the cluster model. The non-perturbative process of 'gluon splitting to diquarks' has to be incorporated into the cluster model for it to agree with the data. Local conservation of p T between particles nearby in rapidity (i.e., p T compensation) is analysed with respect to the thrust direction for π +π -, K +K -, and pp pairs. In this case, the string model provides fair agreement with the data. The cluster model is incompatible with the data for all three particle pairs. The model with its central premiss of isotropically-decaying clusters predicts a PT correlation not seen in the data. © 2002 Elsevier Science B.V. All rights reserved.

AB - Observation is made of rapidity-alignment of K +K - and pp pairs which results from their asymmetric orientation in rapidity, with respect to the direction from primary quark to antiquark. The K +K - and pp data are consistent with predictions from the fragmentation string model. However, the pp data strongly disagree with the conventional implementation of the cluster model. The non-perturbative process of 'gluon splitting to diquarks' has to be incorporated into the cluster model for it to agree with the data. Local conservation of p T between particles nearby in rapidity (i.e., p T compensation) is analysed with respect to the thrust direction for π +π -, K +K -, and pp pairs. In this case, the string model provides fair agreement with the data. The cluster model is incompatible with the data for all three particle pairs. The model with its central premiss of isotropically-decaying clusters predicts a PT correlation not seen in the data. © 2002 Elsevier Science B.V. All rights reserved.

U2 - 10.1016/S0370-2693(02)01658-1

DO - 10.1016/S0370-2693(02)01658-1

M3 - Article

SN - 0370-2693

VL - 533

SP - 243

EP - 252

JO - Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -

Rapidity-alignment and p T compensation of particle pairs in hadronic Z 0 decays

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