Diphoton production at the LHC: a QCD study up to NNLO

被引：43

作者：

Catani, Stefano ^{[1
,2
]}

Cieri, Leandro ^{[3
,4
]}

de Florian, Daniel ^{[5
]}

Ferrera, Giancarlo ^{[6
,7
]}

Grazzini, Massimiliano ^{[4
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Firenze, I-50019 Florence, Italy

[2] Univ Firenze, Dipartimento Fis & Astron, I-50019 Florence, Italy

[3] Ist Nazl Fis Nucl, Sez Milano Bicocca, Piazza Sci 3, I-20126 Milan, Italy

[4] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland

[5] ECyT UNSAM, ICAS, Campus Miguelete,25 Mayo & Francia, RA-1650 Buenos Aires, DF, Argentina

[6] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[7] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2018年 / 04期

基金：

瑞士国家科学基金会;

关键词：

QCD Phenomenology; TRANSVERSE-MOMENTUM RESUMMATION; PHOTON PAIR PRODUCTION; TO-LEADING ORDER; ONE-LOOP CORRECTIONS; HADRON COLLIDERS; CROSS-SECTIONS; ZZ PRODUCTION; COLLISIONS; BOSON; ASSOCIATION;

D O I：

10.1007/JHEP04(2018)142

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：

We consider the production of prompt-photon pairs at the LHC and we report on a study of QCD radiative corrections up to the next-to-next-to-leading order (NNLO). We present a detailed comparison of next-to-leading order (NLO) results obtained within the standard and smooth cone isolation criteria, by studying the dependence on the isolation parameters. We highlight the role of different partonic subprocesses within the two isolation criteria, and we show that they produce large radiative corrections for both criteria. Smooth cone isolation is a consistent procedure to compute QCD radiative corrections at NLO and beyond. If photon isolation is sufficiently tight, we show that the NLO results for the two isolation procedures are consistent with each other within their perturbative uncertainties. We then extend our study to NNLO by using smooth cone isolation. We discuss the impact of the NNLO corrections and the corresponding perturbative uncertainties for both fiducial cross sections and distributions, and we comment on the comparison with some LHC data. Throughout our study we remark on the main features that are produced by the kinematical selection cuts that are applied to the photons. In particular, we examine soft-gluon singularities that appear in the perturbative computations of the invariant mass distribution of the photon pair, the transverse-momentum spectra of the photons, and the fiducial cross section with asymmetric and symmetric photon transverse-momentum cuts, and we present their behaviour in analytic form.

引用

页数：76

共 109 条

[1] Search for new phenomena in high-mass diphoton final states using 37 fb-1 of proton-proton collisions collected at √s=13 TeV with the ATLAS detector [J].

Aaboud, M. ;

Aad, G. ;

Abbott, B. ;

Abdinov, O. ;

Abeloos, B. ;

Abidi, S. H. ;

AbouZeid, O. S. ;

Abraham, N. L. ;

Abramowicz, H. ;

Abreu, H. ;

Abreu, R. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Adachi, S. ;

Adamczyk, L. ;

Adelman, J. ;

Adersberger, M. ;

Adye, T. ;

Affolder, A. A. ;

Afik, Y. ;

Agatonovic-Jovin, T. ;

Agheorghiesei, C. ;

Aguilar-Saavedra, J. A. ;

Ahlen, S. P. ;

Ahmadov, F. ;

Aielli, G. ;

Akatsuka, S. ;

Akerstedt, H. ;

Akesson, T. P. A. ;

Akilli, E. ;

Akimov, A. V. ;

Alberghi, G. L. ;

Albert, J. ;

Albicocco, R. ;

Verzini, M. J. Alconada ;

Alderweireldt, S. C. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexander, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Ali, B. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Alkire, S. P. ;

Allbrooke, B. M. M. ;

Allen, B. W. ;

Allport, P. P. .

PHYSICS LETTERS B, 2017, 775 :105-125

[2]

Aaboud M, 2016, J HIGH ENERGY PHYS, DOI 10.1007/JHEP09(2016)001

[3] Measurement of Higgs boson production in the diphoton decay channel in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector [J].

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, O. S. ;

Abramowicz, H. ;

Abreu, H. ;

Abreu, R. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Adelman, J. ;

Adomeit, S. ;

Adye, T. ;

Agatonovic-Jovina, T. ;

Aguilar-Saavedra, J. A. ;

Agustoni, M. ;

Ahlen, S. P. ;

Ahmadov, F. ;

Aielli, G. ;

Akerstedt, H. ;

Akesson, T. P. ;

Akimoto, G. ;

Akimov, A. V. ;

Alberghi, G. L. ;

Albert, J. ;

Albrand, S. ;

Alconada Verzini, M. J. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Alimonti, G. ;

Alio, L. ;

Alison, J. ;

Allbrooke, B. M. M. ;

Allison, L. J. ;

Allport, P. P. ;

Aloisio, A. ;

Alonso, A. ;

Alonso, F. ;

Alpigiani, C. .

PHYSICAL REVIEW D, 2014, 90 (11)

[4] Search for Scalar Diphoton Resonances in the Mass Range 65-600 GeV with the ATLAS Detector in pp Collision Data at √s=8 TeV [J].

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, O. S. ;

Abramowicz, H. ;

Abreu, H. ;

Abreu, R. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Adelman, J. ;

Adomeit, S. ;

Adye, T. ;

Agatonovic-Jovin, T. ;

Aguilar-Saavedra, J. A. ;

Agustoni, M. ;

Ahlen, S. P. ;

Ahmadov, F. ;

Aielli, G. ;

Akerstedt, H. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Alberghi, G. L. ;

Albert, J. ;

Albrand, S. ;

Verzini, M. J. Alconada ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Alimonti, G. ;

Alio, L. ;

Alison, J. ;

Allbrooke, B. M. M. ;

Allison, L. J. ;

Allport, P. P. ;

Almond, J. ;

Aloisio, A. ;

Alonso, A. ;

Alonso, F. .

PHYSICAL REVIEW LETTERS, 2014, 113 (17)

[5]

Aad G, 2013, J HIGH ENERGY PHYS, DOI 10.1007/JHEP01(2013)086

[6] Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC [J].

Aad, G. ;

Abajyan, T. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdelalim, A. A. ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, U. S. ;

Abramowicz, H. ;

Abreu, H. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Adomeit, S. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Agustoni, M. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akdogan, T. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

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. ;

Allbrooke, B. M. M. .

PHYSICS LETTERS B, 2012, 716 (01) :1-29

[7] Measurement of the Cross Section for Prompt Isolated Diphoton Production Using the Full CDF Run II Data Sample [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, 110 (10)

[8] Measurement of the cross section for prompt isolated diphoton production in p(p)over-bar collisions at √s=1.96 TeV [J].

Aaltonen, T. ;

Alvarez Gonzalez, B. ;

Amerio, S. ;

Amidei, D. ;

Anastassov, A. ;

Annovi, A. ;

Antos, J. ;

Apollinari, G. ;

Appel, J. A. ;

Apresyan, A. ;

Arisawa, T. ;

Artikov, A. ;

Asaadi, J. ;

Ashmanskas, W. ;

Auerbach, B. ;

Aurisano, A. ;

Azfar, F. ;

Badgett, W. ;

Barbaro-Galtieri, A. ;

Barnes, V. E. ;

Barnett, B. A. ;

Barria, P. ;

Bartos, P. ;

Bauce, M. ;

Bauer, G. ;

Bedeschi, F. ;

Beecher, D. ;

Behari, S. ;

Bellettini, G. ;

Bellinger, J. ;

Benjamin, D. ;

Beretvas, A. ;

Bhatti, A. ;

Binkley, M. ;

Bisello, D. ;

Bizjak, I. ;

Bland, K. R. ;

Blumenfeld, B. ;

Bocci, A. ;

Bodek, A. ;

Bortoletto, D. ;

Boudreau, J. ;

Boveia, A. ;

Brau, B. ;

Brigliadori, L. ;

Brisuda, A. ;

Bromberg, C. ;

Brucken, E. ;

Bucciantonio, M. ;

Budagov, J. .

PHYSICAL REVIEW D, 2011, 84 (05)

[9] Measurement of the differential cross sections for isolated direct photon pair production 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. ;

Anikeev, V. B. ;

Askew, A. ;

Atkins, S. ;

Augsten, K. ;

Avila, C. ;

Badaud, E. ;

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. ;

Brandt, A. ;

Brandt, O. ;

Brock, R. ;

Bross, A. ;

Brown, D. ;

Bu, X. B. ;

Buehler, M. ;

Buescher, V. .

PHYSICS LETTERS B, 2013, 725 (1-3) :6-14

[10]

Abbiendi G, 2003, EUR PHYS J C, V31, P491, DOI [10.1140/epjc/s2003-01359-1, 10.1140/cpjc/s2003-01359-1]

← 1 2 3 4 5 6 7 8 9 10 →