Measurements of the cross sections for open charm and beauty production in γγ collisions at √s = 189-202 GeV

M. Acciarri; P. Achard; O. Adriani; M. Aguilar-Benitez; J. Alcaraz; G. Alemanni; J. Allaby; A. Aloisio; M. G. Alviggi; G. Ambrosi; H. Anderhub; V. P. Andreev; T. Angelescu; F. Anselmo; A. Arefiev; T. Azemoon; T. Aziz; P. Bagnaia; A. Bajo; L. Baksay; A. Balandras; S. V. Baldew; S. Banerjee; Sw Banerjee; A. Barczyk; R. Barillère; P. Bartalini; M. Basile; N. Batalova; R. Battiston; A. Bay; F. Becattini; U. Becker; F. Behner; L. Bellucci; R. Berbeco; J. Berdugo; P. Berges; B. Bertucci; B. L. Betev; S. Bhattacharya; M. Biasini; A. Biland; J. J. Blaising; S. C. Blyth; G. J. Bobbink; A. Böhm; L. Boldizsar; B. Borgia; D. Bourilkov; M. Bourquin; S. Braccini; J. G. Branson; F. Brochu; A. Buffini; A. Buijs; J. D. Burger; W. J. Burger; X. D. Cai; M. Capell; G. Cara Romeo; G. Carlino; A. M. Cartacci; J. Casaus; G. Castellini; F. Cavallari; N. Cavallo; C. Cecchi; M. Cerrada; F. Cesaroni; M. Chamizo; Y. H. Chang; U. K. Chaturvedi; M. Chemarin; A. Chen; G. Chen; G. M. Chen; H. F. Chen; H. S. Chen; G. Chiefari; L. Cifarelli; F. Cindolo; C. Civinini; I. Clare; R. Clare; G. Coignet; N. Colino; S. Costantini; F. Cotorobai; B. De La Cruz; A. Csilling; S. Cucciarelli; T. S. Dai; J. A. Van Dalen; R. D'Alessandro; R. De Asmundis

doi:10.1016/S0370-2693(01)00134-4

Measurements of the cross sections for open charm and beauty production in γγ collisions at √s = 189-202 GeV

M. Acciarri, P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, M. G. Alviggi, G. Ambrosi, H. Anderhub, V. P. Andreev, T. Angelescu, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, A. Bajo, L. BaksayA. Balandras, S. V. Baldew, S. Banerjee, Sw Banerjee, A. Barczyk, R. Barillère, P. Bartalini, M. Basile, N. Batalova, R. Battiston, A. Bay, F. Becattini, U. Becker, F. Behner, L. Bellucci, R. Berbeco, J. Berdugo, P. Berges, B. Bertucci, B. L. Betev, S. Bhattacharya, M. Biasini, A. Biland, J. J. Blaising, S. C. Blyth, G. J. Bobbink, A. Böhm, L. Boldizsar, B. Borgia, D. Bourilkov, M. Bourquin, S. Braccini, J. G. Branson, F. Brochu, A. Buffini, A. Buijs, J. D. Burger, W. J. Burger, X. D. Cai, M. Capell, G. Cara Romeo, G. Carlino, A. M. Cartacci, J. Casaus, G. Castellini, F. Cavallari, N. Cavallo, C. Cecchi, M. Cerrada, F. Cesaroni, M. Chamizo, Y. H. Chang, U. K. Chaturvedi, M. Chemarin, A. Chen, G. Chen, G. M. Chen, H. F. Chen, H. S. Chen, G. Chiefari, L. Cifarelli, F. Cindolo, C. Civinini, I. Clare, R. Clare, G. Coignet, N. Colino, S. Costantini, F. Cotorobai, B. De La Cruz, A. Csilling, S. Cucciarelli, T. S. Dai, J. A. Van Dalen, R. D'Alessandro, R. De Asmundis

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Abstract

The production of c and b quarks γγ collisions is studied with the L3 detector at LEP with 410 pb^-1 of data, collected at centre-of-mass energies from 189 GeV to 202 GeV. Hadronic final states containing c and b quarks are identified by detecting electrons or muons from their semileptonic decays. The cross sections σ(e⁺e^- → e⁺e^-cc̄X) and σ(e⁺e^- → e⁺e^- bb̄X) are measured and compared to next-to-leading order perturbative QCD calculations. The cross section of b production is measured in γγ collisions for the first time. It is in excess of the QCD prediction by a factor of three.

Original language	English
Pages (from-to)	10-20
Number of pages	11
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	503
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(01)00134-4
State	Published - 22 Mar 2001

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10.1016/S0370-2693(01)00134-4

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Acciarri, M., Achard, P., Adriani, O., Aguilar-Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M. G., Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., ... De Asmundis, R. (2001). Measurements of the cross sections for open charm and beauty production in γγ collisions at √s = 189-202 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 503(1-2), 10-20. https://doi.org/10.1016/S0370-2693(01)00134-4

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title = "Measurements of the cross sections for open charm and beauty production in γγ collisions at √s = 189-202 GeV",

abstract = "The production of c and b quarks γγ collisions is studied with the L3 detector at LEP with 410 pb-1 of data, collected at centre-of-mass energies from 189 GeV to 202 GeV. Hadronic final states containing c and b quarks are identified by detecting electrons or muons from their semileptonic decays. The cross sections σ(e+e- → e+e-c{\=c}X) and σ(e+e- → e+e- b{\=b}X) are measured and compared to next-to-leading order perturbative QCD calculations. The cross section of b production is measured in γγ collisions for the first time. It is in excess of the QCD prediction by a factor of three.",

author = "M. Acciarri and P. Achard and O. Adriani and M. Aguilar-Benitez and J. Alcaraz and G. Alemanni and J. Allaby and A. Aloisio and Alviggi, {M. G.} and G. Ambrosi and H. Anderhub and Andreev, {V. P.} and T. Angelescu and F. Anselmo and A. Arefiev and T. Azemoon and T. Aziz and P. Bagnaia and A. Bajo and L. Baksay and A. Balandras and Baldew, {S. V.} and S. Banerjee and Sw Banerjee and A. Barczyk and R. Barill{\`e}re and P. Bartalini and M. Basile and N. Batalova and R. Battiston and A. Bay and F. Becattini and U. Becker and F. Behner and L. Bellucci and R. Berbeco and J. Berdugo and P. Berges and B. Bertucci and Betev, {B. L.} and S. Bhattacharya and M. Biasini and A. Biland and Blaising, {J. J.} and Blyth, {S. C.} and Bobbink, {G. J.} and A. B{\"o}hm and L. Boldizsar and B. Borgia and D. Bourilkov and M. Bourquin and S. Braccini and Branson, {J. G.} and F. Brochu and A. Buffini and A. Buijs and Burger, {J. D.} and Burger, {W. J.} and Cai, {X. D.} and M. Capell and {Cara Romeo}, G. and G. Carlino and Cartacci, {A. M.} and J. Casaus and G. Castellini and F. Cavallari and N. Cavallo and C. Cecchi and M. Cerrada and F. Cesaroni and M. Chamizo and Chang, {Y. H.} and Chaturvedi, {U. K.} and M. Chemarin and A. Chen and G. Chen and Chen, {G. M.} and Chen, {H. F.} and Chen, {H. S.} and G. Chiefari and L. Cifarelli and F. Cindolo and C. Civinini and I. Clare and R. Clare and G. Coignet and N. Colino and S. Costantini and F. Cotorobai and {De La Cruz}, B. and A. Csilling and S. Cucciarelli and Dai, {T. S.} and {Van Dalen}, {J. A.} and R. D'Alessandro and {De Asmundis}, R.",

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volume = "503",

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Acciarri, M, Achard, P, Adriani, O, Aguilar-Benitez, M, Alcaraz, J, Alemanni, G, Allaby, J, Aloisio, A, Alviggi, MG, Ambrosi, G, Anderhub, H, Andreev, VP, Angelescu, T, Anselmo, F, Arefiev, A, Azemoon, T, Aziz, T, Bagnaia, P, Bajo, A, Baksay, L, Balandras, A, Baldew, SV, Banerjee, S, Banerjee, S, Barczyk, A, Barillère, R, Bartalini, P, Basile, M, Batalova, N, Battiston, R, Bay, A, Becattini, F, Becker, U, Behner, F, Bellucci, L, Berbeco, R, Berdugo, J, Berges, P, Bertucci, B, Betev, BL, Bhattacharya, S, Biasini, M, Biland, A, Blaising, JJ, Blyth, SC, Bobbink, GJ, Böhm, A, Boldizsar, L, Borgia, B, Bourilkov, D, Bourquin, M, Braccini, S, Branson, JG, Brochu, F, Buffini, A, Buijs, A, Burger, JD, Burger, WJ, Cai, XD, Capell, M, Cara Romeo, G, Carlino, G, Cartacci, AM, Casaus, J, Castellini, G, Cavallari, F, Cavallo, N, Cecchi, C, Cerrada, M, Cesaroni, F, Chamizo, M, Chang, YH, Chaturvedi, UK, Chemarin, M, Chen, A, Chen, G, Chen, GM, Chen, HF, Chen, HS, Chiefari, G, Cifarelli, L, Cindolo, F, Civinini, C, Clare, I, Clare, R, Coignet, G, Colino, N, Costantini, S, Cotorobai, F, De La Cruz, B, Csilling, A, Cucciarelli, S, Dai, TS, Van Dalen, JA, D'Alessandro, R & De Asmundis, R 2001, 'Measurements of the cross sections for open charm and beauty production in γγ collisions at √s = 189-202 GeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 503, no. 1-2, pp. 10-20. https://doi.org/10.1016/S0370-2693(01)00134-4

TY - JOUR

T1 - Measurements of the cross sections for open charm and beauty production in γγ collisions at √s = 189-202 GeV

AU - Acciarri, M.

AU - Achard, P.

AU - Adriani, O.

AU - Aguilar-Benitez, M.

AU - Alcaraz, J.

AU - Alemanni, G.

AU - Allaby, J.

AU - Aloisio, A.

AU - Alviggi, M. G.

AU - Ambrosi, G.

AU - Anderhub, H.

AU - Andreev, V. P.

AU - Angelescu, T.

AU - Anselmo, F.

AU - Arefiev, A.

AU - Azemoon, T.

AU - Aziz, T.

AU - Bagnaia, P.

AU - Bajo, A.

AU - Baksay, L.

AU - Balandras, A.

AU - Baldew, S. V.

AU - Banerjee, S.

AU - Banerjee, Sw

AU - Barczyk, A.

AU - Barillère, R.

AU - Bartalini, P.

AU - Basile, M.

AU - Batalova, N.

AU - Battiston, R.

AU - Bay, A.

AU - Becattini, F.

AU - Becker, U.

AU - Behner, F.

AU - Bellucci, L.

AU - Berbeco, R.

AU - Berdugo, J.

AU - Berges, P.

AU - Bertucci, B.

AU - Betev, B. L.

AU - Bhattacharya, S.

AU - Biasini, M.

AU - Biland, A.

AU - Blaising, J. J.

AU - Blyth, S. C.

AU - Bobbink, G. J.

AU - Böhm, A.

AU - Boldizsar, L.

AU - Borgia, B.

AU - Bourilkov, D.

AU - Bourquin, M.

AU - Braccini, S.

AU - Branson, J. G.

AU - Brochu, F.

AU - Buffini, A.

AU - Buijs, A.

AU - Burger, J. D.

AU - Burger, W. J.

AU - Cai, X. D.

AU - Capell, M.

AU - Cara Romeo, G.

AU - Carlino, G.

AU - Cartacci, A. M.

AU - Casaus, J.

AU - Castellini, G.

AU - Cavallari, F.

AU - Cavallo, N.

AU - Cecchi, C.

AU - Cerrada, M.

AU - Cesaroni, F.

AU - Chamizo, M.

AU - Chang, Y. H.

AU - Chaturvedi, U. K.

AU - Chemarin, M.

AU - Chen, A.

AU - Chen, G.

AU - Chen, G. M.

AU - Chen, H. F.

AU - Chen, H. S.

AU - Chiefari, G.

AU - Cifarelli, L.

AU - Cindolo, F.

AU - Civinini, C.

AU - Clare, I.

AU - Clare, R.

AU - Coignet, G.

AU - Colino, N.

AU - Costantini, S.

AU - Cotorobai, F.

AU - De La Cruz, B.

AU - Csilling, A.

AU - Cucciarelli, S.

AU - Dai, T. S.

AU - Van Dalen, J. A.

AU - D'Alessandro, R.

AU - De Asmundis, R.

PY - 2001/3/22

Y1 - 2001/3/22

N2 - The production of c and b quarks γγ collisions is studied with the L3 detector at LEP with 410 pb-1 of data, collected at centre-of-mass energies from 189 GeV to 202 GeV. Hadronic final states containing c and b quarks are identified by detecting electrons or muons from their semileptonic decays. The cross sections σ(e+e- → e+e-cc̄X) and σ(e+e- → e+e- bb̄X) are measured and compared to next-to-leading order perturbative QCD calculations. The cross section of b production is measured in γγ collisions for the first time. It is in excess of the QCD prediction by a factor of three.

AB - The production of c and b quarks γγ collisions is studied with the L3 detector at LEP with 410 pb-1 of data, collected at centre-of-mass energies from 189 GeV to 202 GeV. Hadronic final states containing c and b quarks are identified by detecting electrons or muons from their semileptonic decays. The cross sections σ(e+e- → e+e-cc̄X) and σ(e+e- → e+e- bb̄X) are measured and compared to next-to-leading order perturbative QCD calculations. The cross section of b production is measured in γγ collisions for the first time. It is in excess of the QCD prediction by a factor of three.

UR - http://www.scopus.com/inward/record.url?scp=0035932415&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(01)00134-4

DO - 10.1016/S0370-2693(01)00134-4

M3 - 期刊論文

AN - SCOPUS:0035932415

SN - 0370-2693

VL - 503

SP - 10

EP - 20

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 - 1-2

ER -

Measurements of the cross sections for open charm and beauty production in γγ collisions at √s = 189-202 GeV

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