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2018-06-13
14:58
OpenAccess [PUBDB-2018-02265] Report/Journal Article
; ; ; et al
The light bound states of $\mathcal{N}=1$ supersymmetric SU(3) Yang-Mills theory on the latticeThep
[DESY-18-008; MS-TP-18-04; arXiv:1801.08062]
In this article we summarise our results from numerical simulations of $\mathcal{N}=1$ supersymmetric Yang-Mills theory with gauge group SU(3). We use the formulation of Curci and Veneziano with clover-improved Wilson fermions. [...]
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2018-06-13
12:34
arXiv [PUBDB-2018-02264] Report/Journal Article
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Model-independent comparison of annual modulation and total rate with direct detection experiments
[DESY-18-028; TTK-18-08; arXiv:1802.10175; DESY-18-028; TTK-18-08]
The relative sensitivity of different direct detection experiments depends sensitively on the astrophysical distribution and particle physics nature of dark matter, prohibiting a model-independent comparison. The situation changes fundamentally if two experiments employ the same target material. [...]
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2018-06-13
11:09
OpenAccess [PUBDB-2018-02263] Preprint/Report
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Core formation from self-heating dark matter
[DESY-18-040; arXiv:1803.09762]
 GO
Cosmological simulations of the $\Lambda$CDM model suggest that the dark matter halos of dwarf galaxies are denser in their center than what observational data of such galaxies imply. In this letter, we propose a novel solution to this problem by invoking a certain class of dark matter self-heating processes. [...]
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2018-06-13
10:52
arXiv [PUBDB-2018-02262] Report/Journal Article
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Constraining extended scalar sectors at the LHC and beyond
[DESY-18-031; arXiv:1803.03594]
We give a brief overview of beyond the Standard Model (BSM) theories with an extended scalar sector and their phenomenological status in the light of recent experimental results. We discuss the relevant theoretical and experimental constraints, and show their impact on the allowed parameter space of two specific models: the real scalar singlet extension of the Standard Model (SM) and the Inert Doublet Model. [...]
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2018-06-13
10:38
OpenAccess [PUBDB-2018-02260] Report/Journal Article
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Top-philic dark matter within and beyond the WIMP paradigm
[DESY-18-018; TUM-HEP 1131-18; TTK-18-05; arXiv:1802.00814]
We present a comprehensive analysis of top-philic Majorana dark matter that interacts via a colored t-channel mediator. Despite the simplicity of the model -- introducing three parameters only -- it provides an extremely rich phenomenology allowing to accommodate the relic density for a large range of coupling strengths spanning over six orders of magnitude. [...]
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2018-06-13
10:34
OpenAccess [PUBDB-2018-02259] Preprint/Report
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The seven-gluon amplitude in multi-Regge kinematics beyond leading logarithmic accuracy
[DESY-18-009; CERN-TH-2018-016, CP3-18-06; SLAC-PUB-17220; arXiv:1801.10605 ]
 GO
We present an all-loop dispersion integral, well-defined to arbitrary logarithmic accuracy, describing the multi-Regge limit of the 2->5 amplitude in planar N=4 super Yang-Mills theory. It follows from factorization, dual conformal symmetry and consistency with soft limits, and specifically holds in the region where the energies of all produced particles have been analytically continued. [...]
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2018-06-13
10:21
OpenAccess [PUBDB-2018-02257] Report/Journal Article
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Flavor physics without flavor symmetries
[DESY-17-220; arXiv:1712.06862]
We quantitatively analyze a quark-lepton flavour model derived from a six-dimensional supersymmetric theory with $SO(10)\times U(1)$ gauge symmetry, compactified on an orbifold with magnetic flux. Two bulk $\mathbf{16}$-plets charged under the $U(1)$ provide the three quark-lepton generations whereas two uncharged $\mathbf{10}$-plets yield two Higgs doublets. [...]
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2018-06-13
10:18
OpenAccess [PUBDB-2018-02256] Report/Journal Article
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The fate of the littlest Higgs model with $T$-parity under 13 TeV LHC data
[DESY-17-192; arXiv:1801.06499]
We exploit all LHC available Run 2 data at center-of-mass energies of 8 and 13 TeV for searches for physics beyond the Standard Model. We scrutinize the allowed parameter space of Little Higgs models with the concrete symmetry of T-parity by providing comprehensive analyses of all relevant production channels of heavy vectors, top partners, heavy quarks and heavy leptons and all phenomenologically relevant decay channels. [...]
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2018-06-13
10:14
OpenAccess [PUBDB-2018-02255] Report/Journal Article
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From spinning conformal blocks to matrix Calogero-Sutherland models
[DESY-17-177; NORDITA-2017-105; arXiv:1711.02022]
In this paper we develop further the relation between conformal four-point blocks involving external spinning fields and Calogero-Sutherland quantum mechanics with matrix-valued potentials. To this end, the analysis of [1] is extended to arbitrary dimensions and to the case of boundary two-point functions. [...]
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2018-06-13
09:58
OpenAccess [PUBDB-2018-02254] Report/Journal Article
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Search for singly charged Higgs bosons in vector-boson scattering at ep colliders
[DESY-17-150; arXiv:1712.07505]
We search for a five-plet singly charged Higgs $H_5^\pm$ in the Georgi-Machacek model at the ep colliders. The charged Higgs bosons are produced via the $ZW^{\pm}$ fusion process $p\, e^- \to j\, e^-\, H_5^\pm$, and decay as $H_5^\pm \to Z\, W^{\pm} \to (l^+ l^-)\, (jj)$. [...]
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