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Showing 2012 · hep-phShow all

75 papers · 2 filters

hep-ph2012★ 27 cited

Data driving the top quark forward--backward asymmetry with a lepton-based handle

Adam Falkowski, Michelangelo L. Mangano, Adam Martin +2

We propose that, within the standard model, the correlation between the forward--backward asymmetry and the corresponding lepton-based asymmetry -- a…

hep-ph2012★ 337 cited

The measurement of the Higgs self-coupling at the LHC: theoretical status

J. Baglio, A. Djouadi, R. Grober +3

Now that the Higgs boson has been observed by the ATLAS and CMS experiments at the LHC, the next important step would be to measure accurately its properties to establish the detai…

hep-ph2012★ 78 cited

Higgs Couplings at the End of 2012

G. Belanger, B. Dumont, U. Ellwanger +2

Performing a fit to all publicly available data, we analyze the extent to which the latest results from the LHC and Tevatron constrain the couplings of the Higgs boson-like state a…

hep-ph2012★ 7 cited

Flavor origin of R-parity

S. Morisi, E. Peinado, A. Vicente

Proton stability is guaranteed in the MSSM by assuming a discrete symmetry, R-parity. However, there are additional R-parity conserving higher dimensional operators which violate l…

hep-ph2012★ 115 cited

The Effective Chiral Lagrangian From Dimension-Six Parity and Time-Reversal Violation

J. de Vries, E. Mereghetti, R. G. E. Timmermans +1

We classify the parity- and time-reversal-violating operators involving quark and gluon fields that have effective dimension six: the quark electric dipole moment, the quark and gl…

hep-ph2012

Accessing the quark orbital angular momentum with Wigner distributions

Cedric Lorce, Barbara Pasquini

The quark orbital angular momentum (OAM) has been recognized as an important piece of the proton spin puzzle. A lot of effort has been invested in trying to extract it quantitative…

hep-ph2012★ 2 cited

Heavy Quark Spin Symmetry and SU(3)-Flavour Partners of the X(3872)

C. Hidalgo-Duque, J. Nieves, M. Pavón Valderrama

In this work, an Effective Field Theory (EFT) incorporating light SU(3)-flavour and heavy quark spin symmetry is used to describe charmed meson-antimeson bound states. At Lowest Or…

hep-ph2012★ 84 cited

Tree-level lepton universality violation in the presence of sterile neutrinos: impact for and

A. Abada, D. Das, A. M. Teixeira +2

We consider a tree-level enhancement to the violation of lepton flavour universality in light meson decays arising from modified couplings in the standard model minimall…

hep-ph2012★ 82 cited

Non-thermal Dark Matter Production from the Electroweak Phase Transition: Multi-TeV WIMPs and "Baby-Zillas"

Adam Falkowski, Jose Miguel No

Particle production at the end of a first-order electroweak phase transition may be rather generic in theories beyond the standard model. Dark matter may then be abundantly produce…

hep-ph2012★ 8 cited

J/ψ and ψ' production in proton(deuteron)-nucleus collisions: lessons from RHIC for the proton-lead LHC run

E. G. Ferreiro, F. Fleuret, J. P. Lansberg +1

We study the impact of different cold nuclear matter effects both on J/ψ and ψ' production, among them the modification of the gluon distribution in bound nucleons, commonly known…

hep-ph2012★ 28 cited

Probing Color Octet Electrons at the LHC

Tanumoy Mandal, Subhadip Mitra

Models with quark and lepton compositeness predict the existence of colored partners of the Standard Model leptons. In this paper we study the LHC phenomenology of a charged colore…

hep-ph2012★ 39 cited

Effect of Anomalous Couplings on the Associated Production of a Single Top Quark and a Higgs Boson at the LHC

Pankaj Agrawal, Subhadip Mitra, Ambresh Shivaji

We consider the production of a single top quark in association with a Higgs boson at the LHC. In particular, we compute the cross sections for the processes , $t h…

hep-ph2012★ 6 cited

Upsilon production in pp and pA collisions: from RHIC to the LHC

J. P. Lansberg

I discuss Upsilon production in pp collisions at RHIC, Tevatron and LHC energies, in particular the behaviour of the differential cross section in rapidity and the impact of QCD co…

hep-ph2012★ 46 cited

Next-to-leading-order QCD corrections to the yields and polarisations of J/Psi and Upsilon directly produced in association with a Z boson at the LHC

Bin Gong, Jean-Philippe Lansberg, Cedric Lorce +1

We update the study of the production of direct J/Psi in association with a Z boson at the Next-to-Leading Order (NLO) in alpha_s by evaluating both the yield differential in P_T a…

hep-ph2012★ 159 cited

Light Flavour and Heavy Quark Spin Symmetry in Heavy Meson Molecules

C. Hidalgo-Duque, J. Nieves, M. Pavon Valderrama

We propose an effective field theory incorporating light SU(3)-flavour and heavy quark spin symmetry to describe charmed meson-antimeson bound states. At lowest order the effective…

hep-ph2012★ 79 cited

Constraining extra-fermion(s) from the Higgs boson data

G. Moreau

First, we study the fit of the Higgs boson rates, based on all the latest collider data, in the effective framework for any Extra-Fermion(s) [EF]. The best-fit results are presente…

hep-ph2012★ 76 cited

Wilson lines and orbital angular momentum

Cédric Lorcé

We present an explicit realization of the Chen et al. approach to the proton spin decomposition in terms of Wilson lines, generalizing the light-front gauge-invariant extensions di…

hep-ph2012★ 95 cited

Higgs Bosons at 98 and 125 GeV at LEP and the LHC

Geneviève Bélanger, Ulrich Ellwanger, John F. Gunion +3

We discuss NMSSM scenarios in which the lightest Higgs boson is consistent with the small LEP excess at about 98 GeV in with $h\to b\anti b$ and the heavier H…

hep-ph2012★ 30 cited

Accessing baryon to meson transition distribution amplitudes in meson production in association with a high invariant mass lepton pair at GSI-FAIR with PANDA

J. P. Lansberg, B. Pire, K. Semenov-Tian-Shansky +1

Nucleon antinucleon annihilation into a near backward (or forward) produced meson and a high invariant mass lepton pair admits a factorized description in terms of antinucleon (or…

hep-ph2012★ 179 cited

CGC predictions for p+Pb collisions at the LHC

Javier L. Albacete, Adrian Dumitru, Hirotsugu Fujii +1

We present predictions for total multiplicities and single inclusive particle production in proton-lead collisions at the LHC. The main dynamical input in our calculations is the u…

hep-ph2012★ 2 cited

Combined constraints on CP-violation in the Standard Model and beyond

Sébastien Descotes-Genon

I review the status of CP violation in the Standard Model from the combination of flavour constraints within the CKMfitter frequentist approach and I describe studies of New Physic…

hep-ph2012★ 65 cited

New insights into the spin structure of the nucleon

V. Bernard, E. Epelbaum, H. Krebs +1

We analyze the low-energy spin structure of the nucleon in a covariant effective field theory with explicit spin-3/2 degrees of freedom to third order in the small scale expansion.…

hep-ph2012

Testing the CGC in proton-lead collisions at the LHC

Javier L. Albacete

I present a brief review of present CGC phenomenological applications and of the physics prospects for the forthcoming proton-lead run at the LHC

hep-ph2012★ 84 cited

Strong moduli stabilization and phenomenology

Emilian Dudas, Andrei Linde, Yann Mambrini +2

We describe the resulting phenomenology of string theory/supergravity models with strong moduli stabilization. The KL model with F-term uplifting, is one such example. Models of th…