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Showing papers in "Physics Letters B in 2012"


Journal ArticleDOI
Georges Aad1, T. Abajyan2, Brad Abbott3, Jalal Abdallah4  +2964 moreInstitutions (200)
TL;DR: In this article, a search for the Standard Model Higgs boson in proton-proton collisions with the ATLAS detector at the LHC is presented, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7×10−9.

9,282 citations


Journal ArticleDOI
TL;DR: In this paper, results from searches for the standard model Higgs boson in proton-proton collisions at 7 and 8 TeV in the CMS experiment at the LHC, using data samples corresponding to integrated luminosities of up to 5.8 standard deviations.

8,857 citations


Journal ArticleDOI
TL;DR: In this paper, soft-gluon corrections to the total t t ¯ cross-section at hadron colliders at the next to next-to-leading logarithmic (NNLL) order were performed.

622 citations


Journal ArticleDOI
TL;DR: In this paper, the instability and metastability bounds of the Standard Model electroweak vacuum were updated in view of the recent ATLAS and CMS Higgs results, and the authors derived an upper bound on the mass of heavy right-handed neutrinos by requiring that their Yukawa couplings do not destabilize the Higgs potential.

575 citations


Journal ArticleDOI
Georges Aad1, Brad Abbott2, Jalal Abdallah3, S. Abdel Khalek  +3081 moreInstitutions (197)
TL;DR: A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb(-1) to 4.9 fb(1) of pp collisions is described in this paper.

572 citations


Journal ArticleDOI
TL;DR: In this article, the implications of these LHC Higgs searches for Higgs-portal models of dark matter in a rather model independent way are studied in the context of generic scalar, vector and fermionic thermal dark matter particles.

515 citations


Journal ArticleDOI
TL;DR: In this article, the authors show that for a standard-like Higgs boson with a mass 123 M h 127 GeV, several unconstrained or constrained (i.e., with soft supersymmetry-breaking parameters unified at the high scale) MSSM scenarios would be excluded.

473 citations


Journal ArticleDOI
TL;DR: In this paper, the top quark pole mass at the Tevatron has been determined to be 173.3 ± 2.7 GeV by using the total cross-section for top-quark pair production at the hadron colliders.

458 citations


Journal ArticleDOI
TL;DR: In this article, the authors derived new lower bounds on the tree-level parameters of the MSSM Higgs sector under the assumption of a Higgs signal, and discussed the implications of this possible signal within the context of the minimal supersymmetric standard model (MSSM).

419 citations


Journal ArticleDOI
TL;DR: In this paper, it was shown that fluctuating proton positions in the colliding nuclei generate very strong magnetic and electric fields in the direction both parallel and perpendicular to the reaction plane.

403 citations


Journal ArticleDOI
TL;DR: In this paper, it was shown that the vanishing of the determinant of a Hessian guarantees the absence of the Boulware-Deser ghost in the Stuckelberg language beyond the decoupling limit.

Journal ArticleDOI
TL;DR: In this article, the lightest Higgs boson mass in the minimal supersymmetric standard model with pure gravity mediation was discussed and the interrelations between the Higgs mass and the gaugino masses were discussed.


Journal ArticleDOI
Georges Aad1, Brad Abbott2, Jalal Abdallah, A. A. Abdelalim3  +3002 moreInstitutions (178)
TL;DR: In this article, the authors describe the measurement of elliptic flow of charged particles in lead-lead collisions at root s(NN) = 2.76 TeV using the ATLAS detector at the Large Hadron Collider (LHC).

Journal ArticleDOI
TL;DR: In this article, the authors show that fermionic dark matter (DM) communicating with the standard model via the Higgs portal is a viable scenario, even if a SM-like Higgs is found at around 125 GeV.

Journal ArticleDOI
TL;DR: In this paper, the authors explore the possibility of renormalizable Higgs couplings to the hidden sector vector fields which can constitute dark matter (DM) and show that the Higgs sector has a natural Z2 parity.

Journal ArticleDOI
TL;DR: In this paper, the authors analyzed the indirect constraints on flavour-changing h decays that are provided by limits on low-energy flavour changing interactions, and showed that indirect limits in the quark sector impose such strong constraints that flavour changing H decays to quark-antiquark pairs are unlikely to be observable at the LHC.

Journal ArticleDOI
K. Aamodt1, Betty Abelev2, A. Abrahantes Quintana, Dagmar Adamová3  +931 moreInstitutions (76)
TL;DR: In this paper, the shape of the pair correlation distributions is studied in a variety of collision centrality classes between 0 and 50% of the total hadronic cross section for particles in the pseudorapidity interval |eta| 0.76 TeV for transverse momenta 0.25 p(T)(a).

Journal ArticleDOI
TL;DR: In this paper, the absence of the Boulware-deser ghost in the Stuckelberg formulation of nonlinear massive gravity was shown to be consistent with existing consistency proofs.

Journal ArticleDOI
TL;DR: The recently discovered resonance at 125 GeV has properties remarkably close to those of the Standard Model Higgs boson as discussed by the authors, and it has been shown that the resonance has properties similar to the Higgs Boson's properties.

Journal ArticleDOI
TL;DR: In this paper, a comparison of both elliptic and triangular flow from (2 + 1 ) -dimensional viscous fluid dynamics with recent measurements in Pb+Pb collisions at the Large Hadron Collider (LHC) was conducted.

Journal ArticleDOI
TL;DR: In this article, the charged-current double differential neutrino cross section was analyzed using a microscopical model that accounts for, among other nuclear effects, long range nuclear correlations and multinucleon scattering.

Journal ArticleDOI
TL;DR: In this paper, the authors examined the parameter space of the constrained MSSM by considering various experimental constraints and found that under these constraints, the mass of the lightest Higgs boson (h) in both the CMSSM and the NUHM2 is upper bounded by about 124 GeV (126 GeV) before (after) considering its theoretical uncertainty.

Journal ArticleDOI
TL;DR: In this paper, the Nambu-Bethe-Salpeter wave function was used to extract non-local hadron-hadron potential and phase shift in the S 0 1 channel.

Journal ArticleDOI
TL;DR: In this paper, a higher order generalized uncertainty principle (GUP) in the form [ X, P ] = i ℏ / ( 1 − β P 2 ) is presented, which predicts both a minimal length uncertainty and a maximal observable momentum.

Journal ArticleDOI
TL;DR: In this paper, the conditions for the little-rip cosmology were derived in terms of the inertial force in the expanding universe and presented two representative models to illustrate the difference between little rip models and those which are asymptotically de Sitter.


Journal ArticleDOI
TL;DR: In this paper, the authors assess the extent to which various constrained versions of the NMSSM are able to describe the recent hints of a Higgs signal at the LHC corresponding to the Higgs mass in the range 123-128 GeV.

Journal ArticleDOI
TL;DR: The first measurements of the invariant differential cross sections of inclusive pi(0) and eta meson production at mid-rapidity in proton-proton collisions root s = 0.9 TeV and root s= 7 TeV are reported in this paper.

Journal ArticleDOI
TL;DR: In this paper, a simple possibility to solve this problem is to introduce additional analytic regulators, which can be introduced in such a way that gauge invariance and the factorized eikonal structure of soft and collinear emissions is maintained.