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High Energy Physics - Phenomenology

arXiv:1503.04849 (hep-ph)
[Submitted on 16 Mar 2015 (v1), last revised 2 Jul 2015 (this version, v2)]

Title:Inclusive B -> X_s l^+ l^-: Complete angular analysis and a thorough study of collinear photons

Authors:Tobias Huber, Tobias Hurth, Enrico Lunghi
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Abstract:We investigate logarithmically enhanced electromagnetic corrections of all angular observables in inclusive B -> X_s l^+ l^-. We present analytical results, which are supplemented by a dedicated Monte Carlo study on the treatment of collinear photons in order to determine the size of the electromagnetic logarithms. We then give the Standard Model predictions of all observables, considering all available NNLO QCD, NLO QED and power corrections, and investigate their sensitivity to New Physics. Since the structure of the double differential decay rate is modified in the presence of QED corrections, we also propose new observables which vanish if only QCD corrections are taken into account. Moreover, we study the experimental sensitivity to these new observables at Belle II.
Comments: 60 pages, 13 figures, 4 tables. v2: Minor modifications, matches published version
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
Report number: QFET-2015-13, SI-HEP-2015-12, MITP/15-001, IU-HET-593
Cite as: arXiv:1503.04849 [hep-ph]
  (or arXiv:1503.04849v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1503.04849
Journal reference: JHEP 1506 (2015) 176

Submission history

From: Tobias Huber [view email]
[v1] Mon, 16 Mar 2015 21:00:15 UTC (3,190 KB)
[v2] Thu, 2 Jul 2015 19:58:08 UTC (3,190 KB)
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