B * production in Z decays

Abreu, P.; Adam, W.; Adye, T.; Agasi, E.; Ajinenko, I.; Aleksan, R.; Alekseev, G. D.; Allport, P. P.; Almehed, S.; Alvsvaag, S. J.; Amaldi, U.; Amato, S.; Andreazza, A.; Andrieux, M. L.; Antilogus, P.; Apel, W. D.; Arnoud, Y.; Aesman, B.; Augustin, J. E.; Augustinus, A.; Baillon, P.; Bambade, P.; Barão, F.; Barate, R.; Bardin, D. Y.; Barker, G. J.; Baroncelli, A.; Baerring, O.; Barrio, J. A.; Bartl, W.; Bates, M. J.; Battaglia, M.; Baubillier, M.; Baudot, J.; Becks, K. H.; Begalli, M.; Beillière, P.; Belokopytov, Yu.; Benvenuti, A. C.; Berggren, M.; Bertrand, Daniel; Bianchi, F.; Bigi, M.; Bilenky, M. S.; Billoir, P.; Blöch, D.; Blume, M.; Blyth, S.; Bocci, V.; Bolognese, T.; Bonesini, M.; Bonivento, W.; Booth, P.S.L.; Borisov, G.; Bosio, C.; Bosworth, S.; Botner, O.; Bouquet, B.; Bourdarios, C.; Bowcock, T. J. V.; Bozzo, M.; Branchini, P.; Brand, K. D.; Brenner, R.; Bricman, C.; Brillault, L.; Brown, R.C.A.; Brueckman, P.; Brunet, J. M.; Bugge, L.; Buran, T.; Buys, A.; Caccia, M.; Calvi, M.; Rozas, Aurelio Juste; Camporesi, T.; Canale, V.; Canepa, M.; Cankoçak, K.; Cao, F.; Carena, F.; Carrilho, P.; Carroll, L.; Caso, C.; Castillo-Gimenez, M V.; Cattai, A.; Cavallo, F. R.; Cerrito, L.; Chabaud, V.; Charpentier, Ph.; Chaussard, L.; Chauveau, J.; Checchia, P.; Chelkov, G. A.; Chierici, R.; Chliapnikov, P.; Chochula, P.; Chorowicz, V.; Cindro, V.; Collins, P.; Contreras, J. L.; Contri, R.; Cortina, E.; Cosme, G.; Cossutti, F.; Crawley, H. B.; Crennell, D.; Crosetti, G.; Cuevas, J.; Czellár, S.; Dahl‐Jensen, E.; Dahm, J.; Dalmagne, B.; Dam, M.; Damgaard, G.; Daum, A.; Dauncey, P.; Davenport, M.; Silva, W. Da; Defoix, C.; Ricca, G. Della; Delpierre, P.; Demaria, N.; Angelis, A. De; Boeck, H. De; Boer, W. De; Brabandere, S. De; Clercq, C. De; Vaissière, Ch De La; Lotto, B. De; Min, A. De; Paula, L. De; Saint-Jean, C. De; Dijkstra, H.; Ciaccio, L. Di; Djama, F.; Dolbeau, J.; Doenszelmann, M.; Doroba, K.; Dracos, M.; Drees, J.; Drees, K. A.; Dris, M.; Dufour, Y.; Dupont, Florent; Edsall, D.; Ehret, R.; Eigen, G.; Ekeloef, T.; Ekspong, G.; Elsing, M.; Engel, J. P.; Ershaidat, N.; Erzen, B.; Espirito-Santo, M.C.; Falk, E.; Fassouliotis, D.; Feindt, M.; Ferrer, A.; Filippas, T. A.; Firestone, A.; Foeth, H.; Fokitis, E.; Fontanelli, F.; Formenti, F.; Franek, B.; Frenkiel, P.; Fries, D. C.; Frodesen, A. G.; Fruehwirth, Rudolf; Fulda-Quenzer, F.; Fuerstenau, H.; Fuster, J.; Galloni, A.; Gamba, D.; Gandelman, M.; Garćıa, C.; Garcia, J. M. Vizan; Gaspar, C.; Gasparini, U.; Gavillet, Ph.; Gazis, E. N.; Gelé, D.; Gerber, J.; Gerdyukov, L.; Gibbs, M.; Gillespie, D.; Gokieli, R.; Golob, B.; Gopal, G. P.; Gorn, L.; Górski, M.; Guz, Yu.; Gracco, V.; Graziani, E.; Grosdidier, G.; Gunnarsson, P.; Günther, M.; Guy, J.; Haedinger, U.; Hahn, F.; Hahn, M.; Hahn, S. R.; Hajduk, Z.; Hallgren, A.; Hamacher, K.; Hao, W.; Harris, F. 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A.; Tyndel, M.; Tzamarias, S.; Ueberschaer, B.; Ueberschaer, S.; Ullaland, O.; Uvarov, V.; Valenti, G.; Vallazza, E.; Velde, C. Vander; Apeldoorn, G. W. van; Dam, P. Van; Doninck, W. Van; Eldik, J. Van; Vassilopoulos, N.; Vegni, G.; Ventura, L.; Vénus, W.; Verbeure, F.; Verlato, M.; Vertogradov, L. S.; Vilanova, D.; Vincent, P.; Vitale, L.; Vlasov, E.; Vodopyanov, A.; Vrba, V.; Wahlen, H.; Walck, C.; Waldner, F.; Wehr, A.; Weierstall, M.; Weilhammer, P.; Wetherell, A. M.; Wicke, D.; Wickens, J.; Wielers, M.; Wilkinson, G.; Williams, W. S. C.; Winter, M.; Witek, M.; Wormser, G.; Woschnagg, K.; Yip, K.; Yushchenko, O.; Zach, F.; Zacharatou, C.; Zaitsev, A.; Zalewska, A.; Zalewski, P.; Zavrtanik, D.; Zevgolatakos, E.; Zimin, N. I.; Zito, M.; Žontar, D.; Zuberi, R.; Zucchelli, G. C.; Zumerle, G.

doi:10.1007/bf01620711

Cited by 16 publications

(7 citation statements)

References 16 publications

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“…Primary b-hadrons are either mesons (about 90%) or baryons (about 10%) [6]. In the case of mesons, measurements suggest that about 25% of primary b-hadrons are orbitally excited B * * mesons [7,8], about 52% are B * mesons and only about 18% are weakly decaying B + , B 0 d or B 0 s mesons [9][10][11]. B * * and B * mesons decay via kaon, pion or photon emission into weakly decaying ground state mesons, which then carry less energy than their parents.…”

Section: Fragmentation Functionsmentioning

confidence: 99%

“…Generated events correspond to the average value x weak B sim. These results depend also on the choice for the value of the curvature parameter C introduced in the χ 2 expression (see (9)). Changing the value of this parameter between 0.02 and 5.0 gives variations on x weak B at the level of ±0.002 on simulated events and even smaller values on real data events.…”

Section: Systematic Uncertaintiesmentioning

confidence: 99%

“…This problem is addressed in two ways: 8 The predicted value r Q = 1 [31] has been used. 9 Note that when f fit represents the Peterson fragmentation function it does not depend on m 2 b⊥ . • the perturbative contribution is taken from a parton shower Monte-Carlo generator.…”

Section: Analytic Extraction Of the Non-perturbative Qcd Fragmentatiomentioning

confidence: 99%

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A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole

Abdallah¹,

Abreu²,

Adam³

et al. 2011

Eur. Phys. J. C

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Section: Fragmentation Functionsmentioning

confidence: 99%

Section: Systematic Uncertaintiesmentioning

confidence: 99%

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A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole

Abdallah¹,

Abreu²,

Adam³

et al. 2011

Eur. Phys. J. C

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“…(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31) to get the numerical results for P Λ (x F |s) as a function of x F .…”

Section: Resultsmentioning

confidence: 99%

“…The 00-elements of the helicity density matrices for K * , ρ, etc in e + e − → Z 0 → V X have been measured [29,30,31] by the ALEPH, DELPHI and OPAL Collaborations at LEP. We showed [32] that these data can also be understood using the SU(6) picture.…”

Section: The Physical Picturementioning

confidence: 99%

Hyperon polarization in different inclusive production processes in unpolarized high energy hadron-hadron collisions

Dong

Liang

2004

Phys. Rev. D

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We apply the picture proposed in a previous Letter, which relates the hyperon polarization in unpolarized hadron-hadron collisions to the left-right asymmetry in singly polarized reactions, to the production of different hyperons in reactions using different projectiles and/or targets. We discuss the different ingredients of the proposed picture in detail and present the results for hyperon polarization in the reactions such as pp, K − p, π ± p, and Σ − p collisions. We compare the results with the available data and make predictions for future experiments.

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Spin physics at e+e− colliders

Bonivento¹

1999

Czech J Phys

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A large number of measurements with polarized beams and/or spin analysis of final state particles has been performed at the e + e − colliders LEP and SLC, providing important information on the dynamics of high energy interactions. In this paper three subjects, for which the role of spin studies was particularly relevant, will be covered: the measurements of the electroweak couplings, the study of fragmentation dynamics and the search for physics beyond the Standard Model.

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B * production in Z decays

Cited by 16 publications

References 16 publications

A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole

A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole

Hyperon polarization in different inclusive production processes in unpolarized high energy hadron-hadron collisions

Spin physics at e+e− colliders

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