Supersymmetric theories that can allow for a 125 GeV Higgs mass and also solve the naturalness supersymmetry flavor problems now require fair degree of complexity. Here we consider simplest possibility near weak scale, but with requirement dropped. In ``pure gravity mediation,'' all supersymmetric particles except gauginos lie at tens to thousands TeV, obtaining loop suppressed masses automatically by anomaly mediation Higgsino threshold corrections. The are lightest superpartners,...

A bstract We study the prospects of observing non-resonant di-Higgs pair production in Standard Model (SM) at high luminosity run 14 TeV LHC (HL-LHC), upon combining multiple final states chosen on basis their yield and cleanliness. In particular, we consider $$ b\overline{b}\gamma \gamma,\ b\overline{b}{\tau}^{+}{\tau}^{-},\ b\overline{b}W\ {W}^{\ast },\ W\ {W}^{\ast}\gamma \gamma <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>b</mml:mi> <mml:mover> <mml:mo>¯</mml:mo>...

The measurement of forward-backward asymmetry in the top and anti-top quark ($t \bar{t}$) production has been recently reconfirmed by CDF Collaboration shows a more than $3\sigma$ deviation from Standard Model(SM) prediction large $t \bar{t}$ invariant mass region. Models with new W$^{\prime}$ or Z$^{\prime}$ bosons have invoked to explain this deviation. In context these models we perform $\chi^2$ analysis all available experimental numbers different $\Delta Y$ $M_{t \bar{t}}$ bins. We show...

We discuss the indirect detection of wino dark matter utilizing gamma-ray observations dwarf spheroidal galaxies (dSphs). After carefully reviewing current limits with particular attention to astrophysical uncertainties, we show prospects mass limit in future observation by Fermi-LAT and GAMMA-400 telescopes. find that improvement so-called $J$-factor both classical ultra-faint dSphs will play a crucial role cover whole range matter. For example, $\delta (\log_{10}J) = 0.1$ for dSphs, can be...

Here we give a broad overview of the more natural spectra allowed by LHC when $UDD$ $R$-parity violation is allowed. Because removes missing energy signals in colliders, experimental constraints on gluino, stops, sbottoms, and Higgsinos are relatively mild. We also show that lepton number conservation can be made consistent with grand unification. This feat achieved through product unification, $SU(5)\ifmmode\times\else\texttimes\fi{}U(3)$. In this model, mixing standard model quarks...

In this work we study the collider phenomenology of a compressed supersymmetric model with gluino ($\stackrel{\texttildelow{}}{g}$) and lightest neutralino (${\stackrel{\texttildelow{}}{\ensuremath{\chi}}}_{1}^{0}$). All other sparticles are assumed to be heavy. We consider pair production at 14 TeV LHC present mass reach as function splitting between neutralino. find that below 1 can excluded 95% C.L. an integrated luminosity $100\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ for extreme...

We show that in studies of light quark- and gluon-initiated jet discrimination, it is important to include the information on softer reconstructed jets (associated jets) around a primary hard jet. This particularly relevant while adopting small radius parameter for reconstructing hadronic jets. The probability having an associated as function transverse momentum (p T ) radius, minimum p association computed up next-to-double logarithmic accuracy (NDLA), predictions are compared with results...

Run-I results from the CMS collaboration show an excess of events in decay h → μτ e with a local significances 2.4σ. This could be first hint flavour violation Higgs sector. We summarise bounds on violating Yukawa couplings direct searches, low energy measurements and projected future experiments. discuss sensitivity upcoming HL-LHC runs lepton colliders measuring lepton-flavour using effective field theory framework. For we find limits BR(h ) eτ ≲ $$ \mathcal{O}(0.5)\% eμ)...

In this work, we show the importance of searches for heavy resonant scalars ($H$) and pseudoscalars ($A$). Taking cue from present searches, make projections in an extended scalar sector at high luminosity run Large Hadron Collider. We study three most relevant search channels, \textit{i.e.}, $H \to hh, \; H/A t\bar{t}$ $b\bar{b}H/A$. Upon studying multifarious final states double Higgs production, find that $b\bar{b}\gamma\gamma$ ($\sigma(pp H hh) \in [81.27,14.45]$ fb $m_H [300,600]$ GeV...

A bstract Triggering long-lived particles (LLPs) at the first stage of trigger system is very crucial in LLP searches to ensure that we do not miss them beginning. The future High Luminosity runs Large Hadron Collider will have increased number pile-up events per bunch crossing. There be major upgrades hardware, firmware and software sides, like tracking level-1 (L1). L1 menu also modified cope with maintain sensitivity physics processes. In our study found usual triggers, mostly meant for...

We explore the parameter space of phenomenological minimal supersymmetric standard model with a light neutralino thermal dark matter (m_{χ[over ˜]_{1}^{0}}≤m_{h}/2) that is consistent current collider and astrophysical constraints. consider both positive negative values higgsino mass (μ). Our investigation shows recent experimental results from LHC as well direct detection searches for by LUX-ZEPLIN Collaboration rule out Z-funnel region μ>0 scenario. The same severely restrict h-funnel μ;...

The Universal Extra Dimension (UED) model is one of the popular extension standard (SM) which offers interesting phenomenology. In minimal UED (mUED) model, Kaluza-Klein (KK) parity conservation ensures that $n=1$ KK states can only be pair produced at colliders and lightest particle stable. most parameter space, first excitation SM hypercharge gauge boson it a viable dark matter candidate. Thus, decay particles will always involve missing transverse energy (${\overline{)E}}_{T}$) as well...

Measurement of the self-coupling 125 GeV Higgs boson is one most crucial tasks for a high luminosity run LHC, and it can only be measured in di-Higgs final state. In minimal supersymmetric standard model, heavy $CP$ even ($H$) decay into lighter ($h$) and, therefore, influence rate production. We investigate role single $H$ production context measuring $h$. have found that $H\ensuremath{\rightarrow}hh$ change value substantially, low $\mathrm{tan}\ensuremath{\beta}$ regime where mass lies...

In this paper, we propose a dedicated forward detector, FOREHUNT (FORward Experiment for HUNdred TeV), 100 TeV FCC-hh the detection of light long-lived particles (LLP) coming from <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>B</a:mi></a:math>-meson decay. We calculate signal acceptance as function mass and proper decay length LLP interpret our result in terms model parameters models dark Higgs scalar heavy neutral leptons. also compare sensitivity with proposed...

In a previous publication, we studied the parameter space of phenomenological minimal Supersymmetric standard model with light neutralino thermal dark matter (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:msub><a:mrow><a:mi>M</a:mi></a:mrow><a:mrow><a:msubsup><a:mrow><a:mover accent="true"><a:mrow><a:mi>χ</a:mi></a:mrow><a:mrow><a:mo...

The recent Belle and BABAR measurements of the branching ratio ${B}^{+}\ensuremath{\rightarrow}{\ensuremath{\tau}}^{+}{\ensuremath{\nu}}_{\ensuremath{\tau}}$ indicate a significant deviation from standard model prediction. We demonstrate that this measurement has serious impact on models with minimal flavor violation involving charged Higgs boson, ruling out large portion currently allowed parameter space. In constrained supersymmetric model, creates tension between anomalous magnetic moment...

We discuss both the minimal supersymmetric Standard Model (MSSM) and next to MSSM scenarios in which lightest Higgs boson with ${m}_{h}=98\text{ }\text{ }\mathrm{GeV}$ is consistent small excess ($\ensuremath{\sim}2.3\ensuremath{\sigma}$) observed at LEP ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}Zh$, $h\ensuremath{\rightarrow}b\overline{b}$ process heavier of mass close 125 GeV as candidate SM Higgs-like particle LHC. show allowed regions nondecoupling zone parameter space are...

We study the impact of including quark- and gluon-initiated jet discrimination in search for strongly interacting supersymmetric particles at LHC. Taking example gluino pair production, considerable improvement is observed LHC reach on substructure observables to standard kinematic variables within a multivariate analysis. In particular, quark gluon separation has higher region intermediate mass-gap between lightest neutralino, as difference signal model background distributions reduced this...

A multitude of searches have already been performed by the ATLAS and CMS collaborations at LHC to probe heavy Higgses minimal supersymmetric Standard Model (MSSM) through their decay particles. In this paper, we study MSSM into neutralino chargino pairs estimate maximum possible branching ratios for these ``ino'' modes being consistent with present data. After performing a random scan relevant electroweakino parameters, impose SM 125 GeV Higgs constraints low-energy flavor We choose few...

In this paper, we search for the regions of phenomenological minimal supersymmetric standard model (pMSSM) parameter space where one can expect to have moderate Higgs mixing angle ($\alpha$) with relatively light (up 600 GeV) additional Higgses after satisfying current LHC data. We perform a global fit analysis using most updated data (till December 2014) from and Tevatron experiments. The constraints coming precision measurements rare b-decays $B_s \to \mu^+ \mu^-$ $b\to s \gamma$ are also...

We study the decay of 125 GeV Higgs boson to a pair lightest neutralinos in phenomenological minimal supersymmetric standard model context collider searches and astrophysical experiments. consider parameter space for light that can be probed via invisible decays Higgsino at ILC. cases where neutralino is compatible with observed relic density or thermal overabundant, pointing nonstandard cosmology. In former case, when properties give rise underabundant density, correct amount abundance...

This work is a study of some possible background sources in the XENON1T environment which might affect energy spectrum electronic recoil events lower side and contribute to observed excess. We have identified additional backgrounds, like $^{41}$Ca, $^{49}$V, $^{63}$Ni, $^{106}$Ru $^{125}$Sb coming from cosmogenic production, where former two emit monoenergetic $X$-rays latter three $β$ decays, or isotopes, $^{210}$Pb, decay chain $^{222}$Rn emanated liquid xenon materials, $^{137}$Cs,...

Abstract We examine the capacity of Large Hadron Collider to determine mean proper lifetime long-lived particles assuming different decay final states. mostly concentrate on high luminosity runs LHC, and therefore, develop our discussion in light amount pile-up various upgrades for HL-LHC runs. employ model-dependent model-independent methods order reconstruct neutral decaying into displaced leptons, potentially accompanied by missing energy, as well charged ihnto leptons energy. also...