RETRACTED: Impact of charm H1-ZEUS combined data and determination of the strong coupling in two different schemes (Retracted article. See vol. 42, art no 089001, 2018)

被引：2

作者：

Vafaee, A. ^{[1
]}

Khorramian, A. N. ^{[1
]}

机构：

[1] Semnan Univ, Fac Phys, POB 35131-19111, Semnan, Iran

来源：

CHINESE PHYSICS C | 2017年 / 41卷 / 11期

关键词：

QCD; HERA combined; PDFs; charm; DEEP-INELASTIC SCATTERING; LUND MONTE-CARLO; CROSS-SECTION; QCD ANALYSIS; PARTON DISTRIBUTIONS; P(P)OVER-BAR COLLISIONS; JET FRAGMENTATION; EP SCATTERING; E+E-PHYSICS; GENERATOR;

D O I：

10.1088/1674-1137/41/11/113104

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We study the impact of recent measurements of charm cross section H1-ZEUS combined data on simultaneous determination of parton distribution functions (PDFs) and the strong coupling, alpha(s)(M-Z(2)), in two different schemes. We perform several fits based on Thorne-Roberts (RT) and Thorne-Roberts optimal (RTOPT) schemes at next-to-leading order (NLO). We show that adding charm cross section H1-ZEUS combined data reduces the uncertainty of the gluon distribution and improves the fit quality up to similar to 0.4% and similar to 0.9%,without and with the charm contribution, from the RT scheme to the RTOPT scheme, respectively. We also emphasise the central role of the strong coupling, alpha(s)(M-Z(2)), in revealing the impact of charm flavour contribution, when it is considered as an extra free parameter. We show that in going from the RT scheme to the RT OPT scheme, we get similar to 0.9% and similar to 2.0% improvement in the value of alpha(s)(M-Z(2)), without and with the charm flavour contribution respectively.

引用

页数：11

共 61 条

[1]

A Kuraev E., 1976, Sov. Phys. JETP, V44, P443

[2] Measurement of the Cross Section for Direct-Photon Production in Association with a Heavy Quark in p(p)over-bar Collisions at √s=1.96 TeV [J].

Aaltonen, T. ;

Amerio, S. ;

Amidei, D. ;

Anastassov, A. ;

Annovi, A. ;

Antos, J. ;

Apollinari, G. ;

Appel, J. A. ;

Arisawa, T. ;

Artikov, A. ;

Asaadi, J. ;

Ashmanskas, W. ;

Auerbach, B. ;

Aurisano, A. ;

Azfar, F. ;

Badgett, W. ;

Bae, T. ;

Barbaro-Galtieri, A. ;

Barnes, V. E. ;

Barnett, B. A. ;

Barria, P. ;

Bartos, P. ;

Bauce, M. ;

Bedeschi, F. ;

Behari, S. ;

Bellettini, G. ;

Bellinger, J. ;

Benjamin, D. ;

Beretvas, A. ;

Bhatti, A. ;

Bland, K. R. ;

Blumenfeld, B. ;

Bocci, A. ;

Bodek, A. ;

Bortoletto, D. ;

Boudreau, J. ;

Boveia, A. ;

Brigliadori, L. ;

Bromberg, C. ;

Brucken, E. ;

Budagov, J. ;

Budd, H. S. ;

Burkett, K. ;

Busetto, G. ;

Bussey, P. ;

Butti, P. ;

Buzatu, A. ;

Calamba, A. ;

Camarda, S. ;

Campanelli, M. .

PHYSICAL REVIEW LETTERS, 2013, 111 (04)

[3] Study of the associated production of photons and b-quark jets in p(p)over-bar collisions at √s=1.96 TeV [J].

Aaltonen, T. ;

Adelman, J. ;

Alvarez Gonzalez, B. ;

Amerio, S. ;

Amidei, D. ;

Anastassov, A. ;

Annovi, A. ;

Antos, J. ;

Apollinari, G. ;

Apresyan, A. ;

Arisawa, T. ;

Artikov, A. ;

Asaadi, J. ;

Ashmanskas, W. ;

Attal, A. ;

Aurisano, A. ;

Azfar, F. ;

Badgett, W. ;

Barbaro-Galtieri, A. ;

Barnes, V. E. ;

Barnett, B. A. ;

Barria, P. ;

Bartos, P. ;

Bauer, G. ;

Beauchemin, P. -H. ;

Bedeschi, F. ;

Beecher, D. ;

Behari, S. ;

Bellettini, G. ;

Bellinger, J. ;

Benjamin, D. ;

Beretvas, A. ;

Bhatti, A. ;

Binkley, M. ;

Bisello, D. ;

Bizjak, I. ;

Blair, R. E. ;

Blocker, C. ;

Blumenfeld, B. ;

Bocci, A. ;

Bodek, A. ;

Boisvert, V. ;

Bortoletto, D. ;

Boudreau, J. ;

Boveia, A. ;

Brau, B. ;

Bridgeman, A. ;

Brigliadori, L. ;

Bromberg, C. ;

Brubaker, E. .

PHYSICAL REVIEW D, 2010, 81 (05)

[4]

Aaron FD, 2012, EUR PHYS J C, V72, DOI 10.1140/epjc/s10052-012-2252-2

[5]

Aaron FD, 2011, EUR PHYS J C, V71, DOI 10.1140/epjc/s10052-011-1769-0

[6] Combined measurement and QCD analysis of the inclusive e±p scattering cross sections at HERA [J].

Aaron, F. D. ;

Abramowicz, H. ;

Abt, I. ;

Adamczyk, L. ;

Adamus, M. ;

Al-daya Martin, M. ;

Alexa, C. ;

Andreev, V. ;

Antonelli, S. ;

Antonioli, P. ;

Antonov, A. ;

Antunovic, B. ;

Arneodo, M. ;

Aushev, V. ;

Bachynska, O. ;

Backovic, S. ;

Baghdasaryan, A. ;

Bamberger, A. ;

Barakbaev, A. N. ;

Barbagli, G. ;

Bari, G. ;

Barreiro, F. ;

Barrelet, E. ;

Bartel, W. ;

Bartsch, D. ;

Basile, M. ;

Begzsuren, K. ;

Behnke, O. ;

Behr, J. ;

Behrens, U. ;

Bellagamba, L. ;

Belousov, A. ;

Bertolin, A. ;

Bhadra, S. ;

Bindi, M. ;

Bizot, J. C. ;

Blohm, C. ;

Bold, T. ;

Boos, E. G. ;

Borodin, M. ;

Borras, K. ;

Boscherini, D. ;

Bot, D. ;

Boudry, V. ;

Boutle, S. K. ;

Bozovic-Jelisavcic, I. ;

Bracinik, J. ;

Brandt, G. ;

Brinkmann, M. ;

Brisson, V. .

JOURNAL OF HIGH ENERGY PHYSICS, 2010, (01)

[7] Measurement of the differential γ+2b-jet cross section and the ration σ(γ+2b-jets)/σ(γ plus b-jet) in p(p)over-bar collisions at √s=1.96 TeV [J].

Abazov, V. M. ;

Abbott, B. ;

Acharya, B. S. ;

Adams, M. ;

Adams, T. ;

Agnew, J. P. ;

Alexeev, G. D. ;

Alkhazov, G. ;

Alton, A. ;

Askew, A. ;

Atkins, S. ;

Augsten, K. ;

Avila, C. ;

Badaud, F. ;

Bagby, L. ;

Baldin, B. ;

Bandurin, D. V. ;

Banerjee, S. ;

Barberis, E. ;

Baringer, P. ;

Bartlett, J. F. ;

Bassler, U. ;

Bazterra, V. ;

Bean, A. ;

Begalli, M. ;

Bellantoni, L. ;

Beri, S. B. ;

Bernardi, G. ;

Bernhard, R. ;

Bertram, I. ;

Besancon, M. ;

Beuselinck, R. ;

Bhat, P. C. ;

Bhatia, S. ;

Bhatnagar, V. ;

Blazey, G. ;

Blessing, S. ;

Bloom, K. ;

Boehnlein, A. ;

Boline, D. ;

Boos, E. E. ;

Borissov, G. ;

Borysova, M. ;

Brandt, A. ;

Brandt, O. ;

Brock, R. ;

Bross, A. ;

Brown, D. ;

Bu, X. B. ;

Buehler, M. .

PHYSICS LETTERS B, 2014, 737 :357-365

[8] Measurement of the differential γ plus c-jet cross section and the ratio of differential γ plus c and γ plus b cross sections in p(p)over-bar collisions at √s=1.96 TeV [J].

Abazov, V. M. ;

Abbott, B. ;

Acharya, B. S. ;

Adams, M. ;

Adams, T. ;

Alexeev, G. D. ;

Alkhazov, G. ;

Alton, A. ;

Askew, A. ;

Atkins, S. ;

Augsten, K. ;

Avila, C. ;

Badaud, E. ;

Bagby, L. ;

Baldin, B. ;

Bandurin, D. V. ;

Banerjee, S. ;

Barberis, E. ;

Baringer, R. ;

Bartlett, J. F. ;

Bartosik, N. ;

Bassler, U. ;

Bazterra, V. ;

Bean, A. ;

Begalli, M. ;

Bellantoni, L. ;

Beri, S. B. ;

Bernardi, G. ;

Bernhard, R. ;

Bertram, I. ;

Besancon, M. ;

Beuselinck, R. ;

Bhat, P. C. ;

Bhatia, S. ;

Bhatnagar, V. ;

Blazey, G. ;

Blessing, S. ;

Bloom, K. ;

Boehnlein, A. ;

Boline, D. ;

Boos, E. E. ;

Borissov, G. ;

Brandt, A. ;

Brandt, O. ;

Brock, R. ;

Bross, A. ;

Brown, D. ;

Brown, J. ;

Bu, X. B. ;

Buehler, M. .

PHYSICS LETTERS B, 2013, 719 (4-5) :354-361

[9] Measurement of the photon plus b-jet production differential cross section in p(p)over-bar) collisions at √s=1.96 TeV [J].

Abazov, V. M. ;

Abbott, B. ;

Acharya, B. S. ;

Adams, M. ;

Adams, T. ;

Alexeev, G. D. ;

Alkhazov, G. ;

Alton, A. ;

Alverson, G. ;

Aoki, M. ;

Askew, A. ;

Atkins, S. ;

Augsten, K. ;

Avila, C. ;

Badaud, F. ;

Bagby, L. ;

Baldin, B. ;

Bandurin, D. V. ;

Banerjee, S. ;

Barberis, E. ;

Baringer, P. ;

Barreto, J. ;

Bartlett, J. F. ;

Bartosik, N. ;

Bassler, U. ;

Bazterra, V. ;

Bean, A. ;

Begalli, M. ;

Bellantoni, L. ;

Beri, S. B. ;

Bernardi, G. ;

Bernhard, R. ;

Bertram, I. ;

Besancon, M. ;

Beuselinck, R. ;

Bezzubov, V. A. ;

Bhat, P. C. ;

Bhatia, S. ;

Bhatnagar, V. ;

Blazeay, G. ;

Blessing, S. ;

Bloom, K. ;

Boehnlein, A. ;

Boline, D. ;

Boos, E. E. ;

Borissov, G. ;

Bose, T. ;

Brandt, A. ;

Brandt, O. ;

Brock, R. .

PHYSICS LETTERS B, 2012, 714 (01) :32-39

[10] Measurement of γ + b + X and γ + c + X Production Cross Sections in pp> Collisions at s=1.96 TeV [J].

Abazov, V. M. ;

Abbott, B. ;

Abolins, M. ;

Acharya, B. S. ;

Adams, M. ;

Adams, T. ;

Aguilo, E. ;

Ahsan, M. ;

Alexeev, G. D. ;

Alkhazov, G. ;

Alton, A. ;

Alverson, G. ;

Alves, G. A. ;

Anastasoaie, M. ;

Ancu, L. S. ;

Andeen, T. ;

Andrieu, B. ;

Anzelc, M. S. ;

Aoki, M. ;

Arnoud, Y. ;

Arov, M. ;

Arthaud, M. ;

Askew, A. ;

Asman, B. ;

Assis Jesus, A. C. S. ;

Atramentov, O. ;

Avila, C. ;

BackusMayes, J. ;

Badaud, F. ;

Bagby, L. ;

Baldin, B. ;

Bandurin, D. V. ;

Banerjee, P. ;

Banerjee, S. ;

Barberis, E. ;

Barfuss, A.-F. ;

Bargassa, P. ;

Baringer, P. ;

Barreto, J. ;

Bartlett, J. F. ;

Bassler, U. ;

Bauer, D. ;

Beale, S. ;

Bean, A. ;

Begalli, M. ;

Begel, M. ;

Belanger-Champagne, C. ;

Bellantoni, L. ;

Bellavance, A. ;

Benitez, J. A. .

PHYSICAL REVIEW LETTERS, 2009, 102 (19)

← 1 2 3 4 5 6 7 →