The impact of the LHC Z-boson transverse momentum data on PDF determinations

被引：32
作者：
Boughezal, Radja [1 ]
Guffanti, Alberto [2 ,3 ]
Petriello, Frank [4 ,5 ]
Ubiali, Maria [6 ]
机构：
[1] Argonne Natl Lab, High Energy Phys Div, Argonne, IL 60439 USA
[2] Univ Torino, Dipartimento Fis, I-10125 Turin, Italy
[3] INFN, Sez Torino, Via P Giuria 1, I-10125 Turin, Italy
[4] Argonne Natl Lab, High Energy Phys Div, Argonne, IL 60439 USA
[5] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
[6] Cavendish Lab HEP, JJ Thomson Ave, Cambridge CB3 OHE, England
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2017年 / 07期
基金：
美国国家科学基金会;
关键词：
QCD Phenomenology; DEUTERON STRUCTURE FUNCTIONS; HIGH STATISTICS MEASUREMENT; INELASTIC MUON SCATTERING; ELECTROWEAK CORRECTIONS; QCD ANALYSIS; PROTON; COMBINATION; NNLO;
D O I：
10.1007/JHEP07(2017)130
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The LHC has recently released precise measurements of the transverse momentum distribution of the Z-boson that provide a unique constraint on the structure of the proton. Theoretical developments now allow the prediction of these observables through next-to-next-to-leading order (NNLO) in perturbative QCD. In this work we study the impact of incorporating these latest advances into a determination of parton distribution functions (PDFs) through NNLO including the recent ATLAS and CMS 7TeV and 8TeV p(T)(Z) data. We investigate the consistency of these measurements in a global fit to the available data and quantify the impact of including the p(T)(Z) distributions on the PDFs. The inclusion of these new data sets significantly reduces the uncertainties on select parton distributions and the corresponding parton-parton luminosities. In particular, we find that the p(T)(Z) data ultimately leads to a reduction of the PDF uncertainty on the gluon-fusion and vector-boson fusion Higgs production cross sections by about 30%, while keeping the central values nearly unchanged.
引用
收藏
页数：36
相关论文
共 83 条
  • [1] Aad G, 2016, EUR PHYS J C, V76, DOI 10.1140/epjc/s10052-016-4070-4
  • [2] Aad G, 2014, J HIGH ENERGY PHYS, DOI 10.1007/JHEP09(2014)145
  • [3] Measurement of the high-mass Drell-Yan differential cross-section in pp collisions at √s=7 TeV with the ATLAS detector
    Aad, G.
    Abajyan, T.
    Abbott, B.
    Abdallah, J.
    Khalek, S. Abdel
    Abdelalim, A. A.
    Abdinov, O.
    Aben, R.
    Abi, B.
    Abolins, M.
    AbouZeid, O. S.
    Abramowicz, H.
    Abreu, H.
    Abulaiti, Y.
    Acharya, B. S.
    Adamczyk, L.
    Adams, D. L.
    Addy, T. N.
    Adelman, J.
    Adomeit, S.
    Adye, T.
    Aefsky, S.
    Aguilar-Saavedra, J. A.
    Agustoni, M.
    Ahlen, S. P.
    Ahles, F.
    Ahmad, A.
    Ahsan, M.
    Aielli, G.
    Akesson, T. P. A.
    Akimoto, G.
    Akimov, A. V.
    Alam, M. A.
    Albert, J.
    Albrand, S.
    Alconada Verzini, M. J.
    Aleksa, M.
    Aleksandrov, I. N.
    Alessandria, F.
    Alexa, C.
    Alexander, G.
    Alexandre, G.
    Alexopoulos, T.
    Alhroob, M.
    Aliev, M.
    Alimonti, G.
    Alison, J.
    Allbrooke, B. M. M.
    Allison, L. J.
    Allport, P. P.
    [J]. PHYSICS LETTERS B, 2013, 725 (4-5) : 223 - 242
  • [4] Aad G, 2013, EUR PHYS J C, V73, DOI 10.1140/epjc/s10052-013-2509-4
  • [5] Measurement of inclusive jet and dijet production in pp collisions at √s=7 TeV using the ATLAS detector
    Aad, G.
    Abbott, B.
    Abdallah, J.
    Abdelalim, A. A.
    Abdesselam, A.
    Abdinov, O.
    Abi, B.
    Abolins, M.
    Abramowicz, H.
    Abreu, H.
    Acerbi, E.
    Acharya, B. S.
    Adams, D. L.
    Addy, T. N.
    Adelman, J.
    Aderholz, M.
    Adomeit, S.
    Adragna, P.
    Adye, T.
    Aefsky, S.
    Aguilar-Saavedra, J. A.
    Aharrouche, M.
    Ahlen, S. P.
    Ahles, F.
    Ahmad, A.
    Ahsan, M.
    Aielli, G.
    Akdogan, T.
    Akesson, T. P. A.
    Akimoto, G.
    Akimov, A. V.
    Akiyama, A.
    Aktas, A.
    Alam, M. S.
    Alam, M. A.
    Albert, J.
    Albrand, S.
    Aleksa, M.
    Aleksandrov, I. N.
    Alessandria, F.
    Alexa, C.
    Alexander, G.
    Alexandre, G.
    Alexopoulos, T.
    Alhroob, M.
    Aliev, M.
    Alimonti, G.
    Alison, J.
    Aliyev, M.
    Allport, P. P.
    [J]. PHYSICAL REVIEW D, 2012, 86 (01)
  • [6] Aaij R, 2013, J HIGH ENERGY PHYS, DOI 10.1007/JHEP02(2013)106
  • [7] Aaij R, 2012, J HIGH ENERGY PHYS, DOI 10.1007/JHEP06(2012)058
  • [8] Measurement of dσ/dy of Drell-Yan e+e- pairs in the Z mass region from p(p)over-bar collisions at √s=1.96 TeV
    Aaltonen, T.
    Adelman, J.
    Alvarez Gonzalez, B.
    Amerio, S.
    Amidei, D.
    Anastassov, A.
    Annovi, A.
    Antos, J.
    Apollinari, G.
    Appel, J.
    Apresyan, A.
    Arisawa, T.
    Artikov, A.
    Asaadi, J.
    Ashmanskas, W.
    Attal, A.
    Aurisano, A.
    Azfar, F.
    Badgett, W.
    Barbaro-Galtieriai, A.
    Barnes, V. E.
    Barnett, B. A.
    Barria, P.
    Bartos, R.
    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.
    [J]. PHYSICS LETTERS B, 2010, 692 (04) : 232 - 239
  • [9] Inclusive deep inelastic scattering at high Q2 with longitudinally polarised lepton beams at HERA
    Aaron, F. D.
    Alexa, C.
    Andreev, V.
    Backovic, S.
    Baghdasaryan, A.
    Baghdasaryan, S.
    Barrelet, E.
    Bartel, W.
    Begzsuren, K.
    Belousov, A.
    Belov, P.
    Bizot, J. C.
    Boudry, V.
    Bozovic-Jelisavcic, I.
    Bracinik, J.
    Brandt, G.
    Brinkmann, M.
    Brisson, V.
    Britzger, D.
    Bruncko, D.
    Bunyatyan, A.
    Bylinkin, A.
    Bystritskaya, L.
    Campbell, A. J.
    Cantun Avila, K. B.
    Ceccopieri, F.
    Cerny, K.
    Cerny, V.
    Chekelian, V.
    Contreras, J. G.
    Coughlan, J. A.
    Cvach, J.
    Dainton, J. B.
    Daum, K.
    Delcourt, B.
    Delvax, J.
    De Wolf, E. A.
    Diaconu, C.
    Dobre, M.
    Dodonov, V.
    Dossanov, A.
    Dubak, A.
    Eckerlin, G.
    Egli, S.
    Eliseev, A.
    Elsen, E.
    Favart, L.
    Fedotov, A.
    Felst, R.
    Feltesse, J.
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2012, (09):
  • [10] Measurement of the inclusive e± p scattering cross section at high inelasticity y and of the structure function FL
    Aaron, F. D.
    Alexa, C.
    Andreev, V.
    Backovic, S.
    Baghdasaryan, A.
    Baghdasaryan, S.
    Barrelet, E.
    Bartel, W.
    Behrend, O.
    Belov, P.
    Begzsuren, K.
    Belousov, A.
    Bizot, J. C.
    Boudry, V.
    Bozovic-Jelisavcic, I.
    Bracinik, J.
    Brandt, G.
    Brinkmann, M.
    Brisson, V.
    Britzger, D.
    Bruncko, D.
    Bunyatyan, A.
    Buschhorn, G.
    Bylinkin, A.
    Bystritskaya, L.
    Campbell, A. J.
    Cantun Avila, K. B.
    Ceccopieri, F.
    Cerny, K.
    Cerny, V.
    Chekelian, V.
    Cholewa, A.
    Contreras, J. G.
    Coughlan, J. A.
    Cvach, J.
    Dainton, J. B.
    Daum, K.
    Delcourt, B.
    Delvax, J.
    De Wolf, E. A.
    Diaconu, C.
    Dobre, M.
    Dodonov, V.
    Dossanov, A.
    Dubak, A.
    Eckerlin, G.
    Egli, S.
    Eliseev, A.
    Elsen, E.
    Favart, L.
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2011, 71 (03): : 1 - 50
123456789