Publications (41)
The Hunt for New Physics at the Large Hadron Collider
P. Nath, B. D. Nelson, H. Davoudiasl +84
The Large Hadron Collider presents an unprecedented opportunity to probe the realm of new physics in the TeV region and shed light on some of the core unresolved issues of particle…
Direct CP Violation in B -> X_s gamma Decays as a Signature of New Physics
A. L. Kagan, M. Neubert
We argue that the observation of a sizable direct CP asymmetry A_{CP} in the inclusive decays B -> X_s gamma would be a clean signal of New Physics. In the Standard Model, A_{CP} c…
Top-Quark Pair Production Beyond Next-to-Leading Order
V. Ahrens, A. Ferroglia, M. Neubert +2
We report on recent calculations of the differential cross section for top-quark pair production at hadron colliders. The results are differential with respect to the top-pair inva…
Flavor Physics in the Quark Sector
M. Antonelli, D. M. Asner, D. Bauer +137
One of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor and measurements and theoretical interpretations of their res…
Comment on ``B->M_1 M_2: Factorization, charming penguins, strong phases, and polarization''
M. Beneke, G. Buchalla, M. Neubert +1
We show that the factorization formula for non-leptonic B decays to two light flavor non-singlet mesons derived by Bauer et al. in the context of soft-collinear effective theory is…
The Discovery Potential of a Super B Factory
JoAnne. L. Hewett, David G. Hitlin, T. Abe +96
The Proceedings of the 2003 SLAC Workshops on flavor physics with a high luminosity asymmetric e+e- collider. The sensitivity of flavor physics to physics beyond the Standard Model…
QCD Anatomy of B -> X_s gamma Decays
A. L. Kagan, M. Neubert
We present an updated next-to-leading order analysis of the B -> X_s gamma branching ratio and photon spectrum, including consistently the effects of Fermi motion in the heavy-quar…
Infrared Singularities and Soft Gluon Resummation with Massive Partons
A. Ferroglia, M. Neubert, B. D. Pecjak +1
Infrared divergences of QCD scattering amplitudes can be derived from an anomalous dimension matrix, which is also an essential ingredient for the resummation of large logarithms d…
Opportunities in Flavour Physics at the HL-LHC and HE-LHC
A. Cerri, V. V. Gligorov, S. Malvezzi +300
Motivated by the success of the flavour physics programme carried out over the last decade at the Large Hadron Collider (LHC), we characterize in detail the physics potential of it…
Factorization and Shape-Function Effects in Inclusive B-Meson Decays
S. W. Bosch, B. O. Lange, M. Neubert +1
Using methods of effective field theory, factorized expressions for arbitrary B -> X_u l nu decay distributions in the shape-function region of large hadronic energy and moderate h…
Heavy Quark Masses, Mixing Angles, and Spin-Flavour Symmetry
M. Neubert
In a series of three lectures, I review the theory and phenomenology of heavy quark masses and mixing angles and the status of their determination. In addition, I give an introduct…
Two-Loop Anomalous Dimension of the Chromo-Magnetic Moment of a Heavy Quark
G. Amorós, M. Beneke, M. Neubert
We find that the anomalous dimension (in the scheme) of the chromo-magnetic operator in the heavy-quark effective theory is γ_{mag}…
Flavor Physics in the Randall-Sundrum Model: I. Theoretical Setup and Electroweak Precision Tests
S. Casagrande, F. Goertz, U. Haisch +2
A complete discussion of tree-level flavor-changing effects in the Randall-Sundrum (RS) model with brane-localized Higgs sector and bulk gauge and matter fields is presented. The b…
QCD Sum Rule Analysis of the Subleading Isgur-Wise Form Factor
M. Neubert, Z. Ligeti, Y. Nir
We present a QCD sum rule calculation of the spin-symmetry violating universal function , which appears at order in the heavy quark expansion of meson form…
Flavor Physics in the Randall-Sundrum Model: II. Tree-Level Weak-Interaction Processes
M. Bauer, S. Casagrande, U. Haisch +1
A comprehensive analysis of tree-level weak interaction processes at low energy is presented for the Randall-Sundrum (RS) model with SU(2)_L * U(1)_Y bulk gauge symmetry and brane-…
The Subleading Isgur-Wise Form Factor and its Implications for the Decays
Z. Ligeti, Y. Nir, M. Neubert
We calculate, in the framework of QCD sum rules and to next-to-leading order in perturbation theory, the universal function which appears at order in the…
QCD Factorization for Decays: Strong Phases and CP Violation in the Heavy Quark Limit
M. Beneke, G. Buchalla, M. Neubert +1
We show that, in the heavy quark limit, the hadronic matrix elements that enter meson decays into two light mesons can be computed from first principles, including `non-factori…
QCD factorization for exclusive, non-leptonic B meson decays: General arguments and the case of heavy-light final states
M. Beneke, G. Buchalla, M. Neubert +1
We provide a rigorous basis for factorization for a large class of non-leptonic two-body -meson decays in the heavy-quark limit. The factorization formula incorporates elements…
QCD factorization for decays
M. Beneke, G. Buchalla, M. Neubert +1
We examine some consequences of the QCD factorization approach to non-leptonic B decays into and final states, including a set of enhanced power corrections. Among the…
Handbook of LHC Higgs Cross Sections: 3. Higgs Properties
The LHC Higgs Cross Section Working Group, S. Heinemeyer, C. Mariotti +155
This Report summarizes the results of the activities in 2012 and the first half of 2013 of the LHC Higgs Cross Section Working Group. The main goal of the working group was to pres…
Renormalization of Velocity-Changing Dimension-Five Operators in the Heavy-Quark Effective Theory
G. Amorós, M. Neubert
We study the renormalization of operators of the type in the heavy-quark effective theory (HQET). We construct the combinations of such operators tha…
Factorization and Sudakov Resummation in Leptonic Radiative B Decay
S. W. Bosch, R. J. Hill, B. O. Lange +1
Soft-collinear effective theory is used to prove factorization of the B->gamma+l+nu decay amplitude at leading power in Lambda/m_b, including a demonstration of the absence of non-…
Searches for Long-Lived Particles at the Future FCC-ee
J. Alimena, P. Azzi, M. Bauer +15
The electron-positron stage of the Future Circular Collider, FCC-ee, is a frontier factory for Higgs, top, electroweak, and flavour physics. It is designed to operate in a 100 km c…
QCD Factorization in B -> pi K, pi pi Decays and Extraction of Wolfenstein Parameters
M. Beneke, G. Buchalla, M. Neubert +1
In the heavy-quark limit, the hadronic matrix elements entering nonleptonic -meson decays into two light mesons can be calculated from first principles including ``nonfactorizab…
The Invisible Renormalon
G. Martinelli, M. Neubert, C. T. Sachrajda
We study the structure of renormalons in the Heavy Quark Effective Theory, by expanding the heavy quark propagator in powers of . We demonstrate that the way in which renorm…
Precision QCD with the Electron-Ion Collider
C. Alexandrou, M. Arratia, E. C. Aschenauer +66
This document summarizes the discussions at the program "Precision QCD with the Electron Ion Collider", held from May to June 2025 at the Institute for Nuclear Theory (INT) at the…
Higher-order estimates of the chromomagnetic moment of a heavy quark
A. G. Grozin, M. Neubert
The leading beta_0^(n-1) alpha_s^n terms in the Wilson coefficient and anomalous dimension of the chromomagnetic operator in the heavy-quark effective Lagrangian are summed to all…
Spectator Effects in Inclusive Decays of Beauty Hadrons
M. Neubert, C. T. Sachrajda
We present a model-independent study of spectator effects, which are responsible for the lifetime differences between beauty hadrons. These effects can be parametrized in terms of…
Dispersive Bounds on the Shape of B -> D^(*) l nu Form Factors
I. Caprini, L. Lellouch, M. Neubert
Dispersive constraints on the shape of the form factors which describe the exclusive decays B -> D^(*) l nu are derived by fully exploiting spin symmetry in the ground-state double…
B -> X_u l nu decay distributions to order alpha_s
F. De Fazio, M. Neubert
An analytic result for the O(alpha_s corrections to the triple differential B -> X_u l nu decay rate is presented, to leading order in the heavy-quark expansion. This is relevant f…
New Bound on gamma from B^+- -> pi K Decays
M. Neubert, J. L. Rosner
A bound on the angle gamma of the unitarity triangle is derived using experimental information on the CP-averaged branching ratios for the rare decays B^+- -> pi^+- K^0 and B^+- ->…
Higgs Physics at the HL-LHC and HE-LHC
M. Cepeda, S. Gori, P. Ilten +374
The discovery of the Higgs boson in 2012, by the ATLAS and CMS experiments, was a success achieved with only a percent of the entire dataset foreseen for the LHC. It opened a lands…
Penguins with Charm and Quark-Hadron Duality
M. Beneke, G. Buchalla, M. Neubert +1
The integrated branching fraction of the process is dominated by resonance background from narrow charmonium states, such as , which exc…
Little Randall-Sundrum models: epsilon_K strikes again
M. Bauer, S. Casagrande, L. Gruender +2
A detailed phenomenological analysis of neutral kaon mixing in "little Randall-Sundrum" models is presented. It is shown that the constraints arising from the CP-violating quantity…
RG-improved single-particle inclusive cross sections and forward-backward asymmetry in production at hadron colliders
V. Ahrens, A. Ferroglia, M. Neubert +2
We use techniques from soft-collinear effective theory (SCET) to derive renormalization-group improved predictions for single-particle inclusive (1PI) observables in top-quark pair…
Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector
D. de Florian, C. Grojean, F. Maltoni +373
This Report summarizes the results of the activities of the LHC Higgs Cross Section Working Group in the period 2014-2016. The main goal of the working group was to present the sta…
The Subleading Isgur-Wise Form Factor to Order in QCD Sum Rules
M. Neubert, Z. Ligeti, Y. Nir
We calculate the contributions arising at order in the QCD sum rule for the spin-symmetry violating universal function , which appears at order in t…
Theoretical Update on the Model-Independent Determination of |V_{cb}| Using Heavy Quark Symmetry
M. Neubert
In view of new precise measurements of the decay rate near zero recoil, we reconsider the theoretical uncertainties in the extraction of usin…
NNLO corrections to B --> X_u l nu and the determination of |V_ub|
C. Greub, M. Neubert, B. D. Pecjak
We study the impact of next-to-next-to-leading order (NNLO) QCD corrections on partial decay rates in B --> X_u l nu decays, at leading-order in the 1/m_b expansion for shape-funct…
Two-loop hybrid renormalization of local dimension-4 heavy-light operators
G. Amoros, M. Neubert
The renormalization of local dimension-4 operators containing a heavy and a light quark field at scales below the heavy-quark mass is discussed, using the formalism of the heavy-qu…
The CLIC Potential for New Physics
J. de Blas, R. Franceschini, F. Riva +100
The Compact Linear Collider (CLIC) is a mature option for the future of high energy physics. It combines the benefits of the clean environment of colliders with operation…