Production and decay of charmed mesons at the Z resonance

Décamp, D.; Deschizeaux, B.; Goy, C.; Lees, J. P.; Minard, M.-N.; Alemany, R.; Crespo, J.M.; Delfino, M.; Fernández, E.; Gaitan, V.; Garrido, Ll.; Mir, L. M.; Pacheco, A.; Catanesi, M. G.; Creanza, D.; Palma, M. De; Farilla, A.; Iaselli, G.; Mäggi, G.; Maggi, M.; Natali, S.; Nuzzo, S.; Quattromini, M.; Ranieri, A.; Raso, G.; Romanò, F.; Ruggieri, F.; Selvaggi, G.; Silvestris, L.; Tempesta, P.; Zito, G.; Hu, H.; Huang, D.; Huang, X. T.; Lin, J.; Lou, J.; Qiao, C. F.; Ruan, T.; Wang, T.; Xie, Y.; Xu, D.; Xu, R.; Zhang, J.; Zhao, W.; Atwood, W. B.; Bauerdick, L. A. T.; Bird, F.; Blucher, E.; Bonvicini, G.; Bossi, F.; Boudreau, J.; Brown, D. N.; Burnett, T. H.; Drevermann, H.; Forty, R.; Grab, C.; Hagelberg, R.; Haywood, S. J.; Hilgart, J.; Jost, B.; Kasemann, M.; Knobloch, J.; Lacourt, A.; Lançon, E.; Lehraus, I.; Löhse, T.; Lusiani, A.; Marchioro, A.; Martı́nez, M.; Mató, P.; Menary, S.; Minten, A.; Miotto, A.; Miquel, R.; Moser, H. G.; Nash, J.; Palazzi, P.; Ranjard, F.; Redlinger, G.; Roth, A.; Rothberg, J.; Rotscheidt, H.; Saich, M.; Denis, R. St.; Schlatter, D.; Takashima, M.; Talby, M.; Tejessy, W.; Wachsmuth, H.; Wasserbaech, S.; Wheeler, S.; Wiedenmann, W.; Witzeling, W.; Wotschack, J.; Ajaltouni, Z.; Bardadin-Otwinowska, M.; Fellous, R. El; Falvard, A.; Harvey, J.; Henrard, P.; Jousset, J.; Michel, B.; Montret, J. C.; Pallin, D.; Perret, P.; Proriol, J.; Prulhière, F.; Stimpfl, G.; Hansen, J. D.; Hansen, J. R.; Hansen, P. H.; Möllerud, R.; Nilsson, B.S.; Efthymiopoulos, I.; Simopoulou, E.; Vayaki, A.; Badier, J.; Blondel, A.; Bonneaud, G. R.; Bourotte, J.; Braems, F.; Brient, J. C.; Fouque, G.; Gamess, A.; Guirlet, R.; Orteu, S.; Rosowsky, A.; Rougé, A.; Rumpf, M.; Tanaka, R.; Videau, H.; Candlin, D. J.; Veitch, E.; Moneta, L.; Parrini, G.; Corden, M.; Georgiopoulos, C.; Ikeda, M.; Lannutti, J.; Levinthal, D.; Mermikides, M.; Sawyer, L.; Antonelli, A.; Baldini, R.; Bencivenni, G.; Bologna, G.; Campana, P.; Capon, G.; Cerutti, F.; Chiarella, V.; D’Ettorre-Piazzoli, B.; Felici, G.; Laurelli, P.; Mannocchi, G.; Murtas, F.; Murtas, F.; Nicoletti, G.; Passalacqua, L.; Pepe-Altarelli, M.; Picchi, P.; Zografou, P.; Altoon, B.; Boyle, O.; Halley, A.W.; Have, I. ten; Hearns, J. L.; Lynch, J.G.; Morton, W. T.; Raine, C.; Scarr, J. M.; Smith, K. M.; Thompson, A. S.; Turnbull, R.M.; Brandl, B.; Braun, O.; Geiges, R.; Geweniger, C.; Hanke, P.; Hepp, V.; Kluge, E. E.; Maumary, Y.; Putzer, A.; Rensch, B.; Stahl, A.; Tittel, K.; Wunsch, M.; Belk, A. T.; Beuselinck, R.; Binnie, D. M.; Cameron, W.; Cattaneo, M.; Dornan, P. J.; Dugeay, S.; Greene, A. M.; Hassard, J. F.; Lieske, N. M.; Patton, S.; Payne, D. G.; Phillips, M. J.; Sedgbeer, J. K.; Taylor, G. P.; Tomalin, I. R.; Wright, A. G.; Girtler, P.; Kühn, D.; Rudolph, G.; Bowdery, C. K.; Brodbeck, T. J.; Finch, A. J.; Foster, F.; Hughes, G.; Keemer, N. R.; Nuttall, M.; Patel, Apoorva; Rowlingson, B. S.; Sloan, T.; Snow, S. W.; Whelan, E. P.; Barczewski, T.; Kleinknecht, K.; Raab, J.; Renk, B.; Roehn, S.; Sander, H. G.; Schmelling, M.; Schmidt, H.; Steeg, F.; Walther, S. M.; Wolf, B.; Albanèse, J.P.; Aubert, J.J.; Benchouk, C.; Bernard, Véronique; Bonissent, A.; Courvoisier, D.; Etienne, F.; Papalexiou, S.; Payre, P.; Pietrzyk, B.; Qian, Z.; Becker, H.; Blum, W.; Cattaneo, P. W.; Cowan, G.; Dehning, B.; Dietl, H.; Dydak, F.; Fernández-Bosman, M.; Hansl‐Kozanecka, T.; Jahn, A.; Kozanecki, W.; Lange, E.; Lauber, J.; Lütjens, G.; Lütz, G.; Männer, W.; Richter, R.; Schröder, J.; Schwarz, A. S.; Settles, R.; Stierlin, U.; Thomas, J. P.; Wolf, G.; Bertín, V.; Boucrot, J.; Callot, O.; Chen, X.; Cordier, A.; Davier, M.; Ganis, G.; Grivaz, J.-F.; Heusse, P.; Janot, P.; Kim, D. W.; Diberder, F. Le; Lefrançois, J.; Lutz, A. M.; Veillet, J. J.; Videau, I.; Zhang, Z.; Zomer, F.; Abbaneo, D.; Amendolia, S. R.; Bagliesi, G.; Batignani, G.; Bosisio, L.; Bottigli, U.; Bradaschia, C.; Carpinelli, M.; Ciocci, M. A.; Dell’Orso, R.; Ferrante, I.; Fidecaro, F.; Foà, L.; Focardi, E.; Forti, F.; Gatto, C.; Giassi, A.; Giorgi, M. A.; Ligabue, F.; Mannelli, E. B.; Marrocchesi, P. S.; Messineo, A.; Palla, F.; Sanguinetti, G.; Steinberger, J.; Тенчини, Р.; Tonelli, G.; Triggiani, G.; Vannini, C.; Venturi, A.; Verdini, P. G.; Walsh, J.; Carter, J. M.; Green, M. G.; March, P.V.; Medcalf, T.; Quazi, I. S.; Strong, J. A.; Thomas, R. M.; West, L.R.; Wildish, T.; Botterill, D.; Clifft, R. W.; Edgecock, R.; Edwards, M.; Fisher, S. M.; Jones, T. J.; Norton, P. R.; Salmon, D. P.; Thompson, J.C.; Bloch-Devaux, B.; Colas, P.; Klopfenstein, C.; Locci, E.; Loucatos, S.; Monnier, E.; Pérez, P.; Perlas, J. A.; Perrier, Frédéric; Rander, J.; Renardy, J. F.; Roussarie, A.; Schuller, J. P.; Schwindling, J.; Vallage, B.; Ashman, J. G.; Booth, C. N.; Buttar, C. M.; Carney, R.; Cartwright, S. L.; Combley, F.; Dinsdale, M.; Doḡru, M.; Hatfield, F.; Martin, J. P.; Parker, D.; Reeves, P.; Thompson, L.F.; Barberio, E.; Brandt, Siegmund; Burkhardt, Hans; Grupen, C.; Meinhard, H.; Mirabito, L.; Schäfer, U.; Seywerd, H.; Apollinari, G.; Giannini, G.; Gobbo, B.; Liello, F.; Ragusa, F.; Rolandi, G.; Stiegler, U.; Bellantoni, L.; Cinabro, D.; Conway, J.; Cowen, D. F.; Feng, Z.; Ferguson, D.P.S.; Gao, Y. S.; Grahl, J.; Harton, J. L.; Jacobsen, J.; Jared, R. C.; Johnson, R.P.; LeClaire, B. W.; Pan, Y.; Pater, J. R.; Saadi, Y.; Sharma, V.; Shi, Z. H.; Tang, Yangyang; Walsh, A. M.; Wear, J.; Weber, F. V.; Whitney, Milton; Sau, Lan. Wu; Zobernig, G.

doi:10.1016/0370-2693(91)90769-m

Cited by 45 publications

(5 citation statements)

References 20 publications

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“…Result (rescaled) Correction [%] PHOTOS D 0 → K − π + CLEO-c 14 (CC14) [1092] 3.934 ± 0.021 ± 0.061(31)% -2.15/Yes BABAR 07 (BB07) [1202] 4.035 ± 0.037 ± 0.074(24)% 0.69 2.02/No CLEO II 98 (CL98) [1203] 3.920 ± 0.154 ± 0.168(32)% 2.80 none ALEPH 97 (AL97) [1204] 3.930 ± 0.091 ± 0.125(32)% 0.79 2.0/No ARGUS 94 (AR94) [1205] 3.490 ± 0.123 ± 0.288(24)% 2.33 none CLEO II 93 (CL93) [1206] 3.960 ± 0.080 ± 0.171(15)% 0.38 2.0/No ALEPH 91 (AL91) [1207] 3.730 ± 0.351 ± 0.455(34)% 3.12 none D 0 → π + π − /D 0 → K − π + CLEO-c 10 (CC10) [1090] 0.0370 ± 0.0006 ± 0.0009(02) -2.15/Yes CDF 05 (CD05) [1208] 0.03594 ± 0.00054 ± 0.00043(15) -2.15/Yes FOCUS 02 (FO02) [1201] 0.0364 ± 0.0012 ± 0.0006(02) 3.10 none…”

Section: Experiments (Acronym)mentioning

confidence: 99%

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of summer 2016

Amhis,

Banerjee,

Ben-Haim

et al. 2016

Preprint

Self Cite

218

408

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This article reports world averages of measurements of b-hadron, c-hadron, and τ -lepton properties obtained by the Heavy Flavor Averaging Group using results available through summer 2016. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, CP violation parameters, parameters of semileptonic decays, and Cabbibo-Kobayashi-Maskawa matrix elements. 10 Summary 11 Acknowledgments References 3.2.5 B + c lifetime Early measurements of the B + c meson lifetime, from CDF [132, 133] and D0 [134], use the semileptonic decay mode B + c → J/ψ + ν and are based on a simultaneous fit to the mass and lifetime using the vertex formed with the leptons from the decay of the J/ψ and the third lepton. Correction factors to estimate the boost due to the missing neutrino are used. Correlated systematic errors include the impact of the uncertainty of the B + c p T spectrum on the correction factors, the level of feed-down from ψ(2S) decays, Monte Carlo modeling of the decay model varying from phase space to the ISGW model, and mass variations. With more statistics, CDF2 was able to perform the first B + c lifetime based on fully reconstructed B + c → J/ψπ + decays [135], which does not suffer from a missing neutrino. Recent measurements from LHCb, both with B + c → J/ψ µ + ν [136] and B + c → J/ψ π + [137] decays, achieve the highest level of precision. All the measurements are summarized in Table 11 and the world average, dominated by the LHCb measurements, is determined to be τ (B + c ) = 0.507 ± 0.009 ps . (46) 3.2.6 Λ 0 b and b-baryon lifetimes The first measurements of b-baryon lifetimes, performed at LEP, originate from two classes of partially reconstructed decays. In the first class, decays with an exclusively reconstructed Λ + c baryon and a lepton of opposite charge are used. These products are more likely to occur in Measurements of B −c decays to charmed hadrons are summarized in Sections 6.5.1 to 6.5.2. Since the absolute cross-section for B − c meson production in any production environment is currently not known, it is not possible to determine absolute branching fractions. Instead, results are presented either as ratios of branching fractions of different B − c decays, or are normalised to the branching fraction of the decay of a lighter B meson (usually B − ). In the latter case the measured quantity is the absolute or relative B − c branching fraction multiplied by the ratio of cross-sections (or, equivalently, production fractions) of the B − c and the lighter B meson. It should be noted that the ratio of cross-sections for different b hadron species can depend on production environment, and on the fiducial region accessed by each experiment. While this has been studied for certain b hadron species (see Sec. 3.1), there is currently little published data that would allow to investigate the effect for B − c mesons. Therefore, ...

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Section: Experiments (Acronym)mentioning

confidence: 99%

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of summer 2016

Amhis,

Banerjee,

Ben-Haim

et al. 2016

Preprint

Self Cite

218

408

View full text Add to dashboard Cite

show abstract

“…Experiment result (rescaled) correction [%] PHOTOS D 0 → K − π + CLEO-c 07 (CC07) [557] 3.891 ± 0.035 ± 0.065(27)% -2.15/Yes BaBar 07 (BB07) [558] 4.035 ± 0.037 ± 0.074(24)% 0.69 2.02/No CLEO II 98 (CL98) [559] 3.920 ± 0.154 ± 0.168(32)% 2.80 none ALEPH 97 (AL97) [560] 3.930 ± 0.091 ± 0.125(32)% 0.79 2.0/No ARGUS 94 (AR94) [561] 3.490 ± 0.123 ± 0.288(24)% 2.33 none CLEO II 93 (CL93) [562] 3.960 ± 0.080 ± 0.171(15)% 0.38 2.0/No ALEPH 91 (AL91) [563] 3.730 ± 0.351 ± 0.455(34)% 3.12 none D 0 → π + π − /D 0 → K − π + CLEO-c 05 (CC05) [564] 0.0363 ± 0.0010 ± 0.0008(01) 0.25 2.02/No CDF 05 (CD05) [520] 0.03594 ± 0.00054 ± 0.00043(15) -2.15/Yes FOCUS 02 (FO02) [555] 0.0364 ± 0.0012 ± 0.0006(02) 3.10 none D 0 → K + K − /D 0 → K − π + CDF 05 [520] 0.0992 ± 0.0011 ± 0.0012(01) -2.15/Yes FOCUS 02 [555] 0.0982 ± 0.0014 ± 0.0014(01) -1.12 none D 0 → K + K − CLEO-c 08 (CC08) [565] 0.411 ± 0.008 ± 0.009% 0.64 2.02/No and any missing structure amplitudes are relatively real with constructive interference. The uncertainties largely cancel in the branching fraction ratios.…”

Section: Branching Fraction Correctionsmentioning

confidence: 99%

Averages of b-hadron, c-hadron, and tau-lepton Properties

Group¹,

Asner²,

Banerjee³

et al. 2010

Preprint

Self Cite

290

434

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This article reports world averages for measurements of b-hadron, c-hadron, and τ lepton properties obtained by the Heavy Flavor Averaging Group (HFAG) using results available at least through the end of 2009. Some of the world averages presented use data available through the spring of 2010. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, CP violation parameters, and parameters of semileptonic decays.3 The DELPHI result of Ref. [25] is considered to supersede an older one [26]. 4 CDF updated their measurement of f baryon /f d [29] to account for a measured p T dependence between exclusively reconstructed Λ b and B 0 [31].

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“…where B(D → Kπ) is the branching fraction for D 0 → K − π + or D + →K 0 π + decays, and τ D is the lifetime of D meson. To avoid the possible correlations, here we use the value of the branching fraction of D 0 → K − π + decay, B(D 0 → K − π + ) = (3.91 ± 0.05)%, which is the average of the measurements from BaBar [6], CLEOc [7], CLEO-II [8], ALEPH [9,10], and ARGUS [11]. For the branching fraction of D + →K 0 π + decay, we use the value of B(D + →K 0 π + ) = (2.986 ± 0.069)%, which is the sum of CLEO-c's measurements B(D + → K 0 S π + ) = (1.526 ± 0.022 ± 0.038)% [7] and B(D + → K 0 L π + ) = (1.460 ± 0.040 ± 0.035)% [12].…”

Section: A Relative Measurementsmentioning

confidence: 99%

Determination of $$f_+^K(0)$$ f + K ( 0 ) and extraction of $$|V_{cs}|$$ | V c s | from semileptonic $$D$$ D decays

Fang

Rong

et al. 2015

Eur. Phys. J. C

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By globally analyzing all existing measured branching fractions and partial rates in different four momentum transfer-squared q 2 bins of D → K e + ν e decays, we obtain the product of the form factor and magnitude of Cabibbo-Kobayashi-Maskawa matrix element V cs to be f K + (0)|V cs | = 0.717 ± 0.004. With this product, we determine the D → K semileptonic form factor f K + (0) = 0.737 ± 0.004 ± 0.000 in conjunction with the value of |V cs | determined from the standard model global fit. Alternately, with the product together with the input of the form factor f K + (0) calculated in lattice quantum chromodynamics (LQCD) recently, we extract |V cs | D→K e + ν e = 0.962 ± 0.005 ± 0.014, where the error is still dominated by the uncertainty of the form factor calculated in LQCD. Combining the |V cs | D + s → + ν = 1.012 ± 0.015 ± 0.009 extracted from all existing measurements of D + s → + ν decays and |V cs | D→K e + ν e = 0.962±0.005±0.014 together, we find the most precisely determined |V cs | to be |V cs | = 0.983±0.011, which improves the accuracy of the PDG'2014 value |V cs | PDG 2014 = 0.986 ± 0.016 by 45 %.

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Production and decay of charmed mesons at the Z resonance

Cited by 45 publications

References 20 publications

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of summer 2016

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of summer 2016

Averages of b-hadron, c-hadron, and tau-lepton Properties

Determination of $$f_+^K(0)$$ f + K ( 0 ) and extraction of $$|V_{cs}|$$ | V c s | from semileptonic $$D$$ D decays

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