Next-to-leading order QCD predictions for W+3-jet distributions at hadron colliders
We present next-to-leading order QCD predictions for a variety of distributions in W+3-jet production at both the Tevatron and the Large Hadron Collider. We include all subprocesses and incorporate the decay of the W boson into leptons. Our results are in excellent agreement with existing Tevatron d...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/52697 |
| _version_ | 1826190513486692352 |
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| author | Berger, Carola Bern, Z. Dixon, L. J. Cordero, F. Febres Forde, D. Gleisberg, T. Ita, H. Kosower, D. A. Maître, D. |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Berger, Carola Bern, Z. Dixon, L. J. Cordero, F. Febres Forde, D. Gleisberg, T. Ita, H. Kosower, D. A. Maître, D. |
| author_sort | Berger, Carola |
| collection | MIT |
| description | We present next-to-leading order QCD predictions for a variety of distributions in W+3-jet production at both the Tevatron and the Large Hadron Collider. We include all subprocesses and incorporate the decay of the W boson into leptons. Our results are in excellent agreement with existing Tevatron data and provide the first quantitatively precise next-to-leading order predictions for the LHC. We include all terms in an expansion in the number of colors, confirming that the specific leading-color approximation used in our previous study is accurate to within 3%. The dependence of the cross section on renormalization and factorization scales is reduced significantly with respect to a leading-order calculation. We study different dynamical scale choices, and find that the total transverse energy is significantly better than choices used in previous phenomenological studies. We compute the one-loop matrix elements using on-shell methods, as numerically implemented in the BlackHat code. The remaining parts of the calculation, including generation of the real-emission contributions and integration over phase space, are handled by the SHERPA package. |
| first_indexed | 2024-09-23T08:41:23Z |
| format | Article |
| id | mit-1721.1/52697 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:41:23Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/526972022-09-23T13:52:24Z Next-to-leading order QCD predictions for W+3-jet distributions at hadron colliders Berger, Carola Bern, Z. Dixon, L. J. Cordero, F. Febres Forde, D. Gleisberg, T. Ita, H. Kosower, D. A. Maître, D. Massachusetts Institute of Technology. Center for Theoretical Physics Berger, Carola Berger, Carola We present next-to-leading order QCD predictions for a variety of distributions in W+3-jet production at both the Tevatron and the Large Hadron Collider. We include all subprocesses and incorporate the decay of the W boson into leptons. Our results are in excellent agreement with existing Tevatron data and provide the first quantitatively precise next-to-leading order predictions for the LHC. We include all terms in an expansion in the number of colors, confirming that the specific leading-color approximation used in our previous study is accurate to within 3%. The dependence of the cross section on renormalization and factorization scales is reduced significantly with respect to a leading-order calculation. We study different dynamical scale choices, and find that the total transverse energy is significantly better than choices used in previous phenomenological studies. We compute the one-loop matrix elements using on-shell methods, as numerically implemented in the BlackHat code. The remaining parts of the calculation, including generation of the real-emission contributions and integration over phase space, are handled by the SHERPA package. U.S. Department of Energy (Contract Nos. DE-FG03-91ER40662, DE-AC02- 76SF00515, and DE-FC02-94ER40818) 2010-03-18T12:28:17Z 2010-03-18T12:28:17Z 2009-10 2009-07 Article http://purl.org/eprint/type/JournalArticle 1550-2368 1550-7998 http://hdl.handle.net/1721.1/52697 Berger, C.F. et al "Next-to-leading order QCD predictions for W+3-jet distributions at hadron colliders." Physical Review D 80.7 (2009): 074036. © 2009 The American Physical Society en_US http://dx.doi.org/10.1103/PhysRevD.80.074036 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Berger, Carola Bern, Z. Dixon, L. J. Cordero, F. Febres Forde, D. Gleisberg, T. Ita, H. Kosower, D. A. Maître, D. Next-to-leading order QCD predictions for W+3-jet distributions at hadron colliders |
| title | Next-to-leading order QCD predictions for W+3-jet distributions at hadron colliders |
| title_full | Next-to-leading order QCD predictions for W+3-jet distributions at hadron colliders |
| title_fullStr | Next-to-leading order QCD predictions for W+3-jet distributions at hadron colliders |
| title_full_unstemmed | Next-to-leading order QCD predictions for W+3-jet distributions at hadron colliders |
| title_short | Next-to-leading order QCD predictions for W+3-jet distributions at hadron colliders |
| title_sort | next to leading order qcd predictions for w 3 jet distributions at hadron colliders |
| url | http://hdl.handle.net/1721.1/52697 |
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