“…The resulting distributions can be interpreted statistically to form new observables, allowing the separation of boosted, hadronically-decaying particles from light quark and gluon backgrounds. We present a study of Q-jets in boosted, hadronically-decaying $W$ boson and dijet samples, demonstrating the discriminating power of this technique. …”
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“…In this note, we study the sensitivity of experiments at the LHC to its coupling to the top quark, by searching for the process pp $\rightarrow t\bar{t}H$, where the primary decay mode of the $H$ is $\rightarrow b\bar{b}$. …”
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“…Numerous extensions to the standard model (SM) predict gauge interactions with enhanced couplings to the top quark. In this analysis, we present a search for t$\bar{\text{t}}$ resonances using the CMS detector, with a selection optimized for non-boosted top pairs. …”
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“…This allows for strong statements on which sets of parton distribution functions best describe the data. A theory of quark compositeness modeled by contact interactions is confronted by the unfolded data using the CLs technique, an example of the versatility of the measurement.…”
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“…Evidence for production of the Higgs boson by vector boson fusion is obtained in a model-independent approach by comparing the signal strengths $\mu$ of vector boson fusion and production associated with a vector boson to to that for gluon fusion including associated production of top quark pairs: $\mu_{\rm VBF+VH}/\mu_{\rm ggF+ttH}= 1.4 ^{+0.4}_{-0.3} \rm{(stat.)} ^{+0.6}_{-0.4} \rm{(syst.)}$ which is 3.3 Gaussian standard deviations from zero.…”
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“…The measurement of the $\mathrm{t\bar{t}H}$ process plays an important role in Higgs characterization studies since it provides a direct probe of the Higgs Yukawa coupling to fermions, particularly to the top quark. Events with one lepton and at least 5 jets or two leptons and at least 4 jets are selected from $19.5$ fb$^{-1}$ of collision data collected by CMS at $\sqrt{s}=8$ TeV. …”
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“…The decays of a Higgs boson to a bottom-quark pair, to a photon pair, and to final states with leptons are considered in conjunction with hadronic and leptonic decay modes of the Z and W bosons. …”
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“…FCC-ee, operating at four different energies for precision physics of the Z, W, and Higgs boson and the top quark, represents a significant push in terms of technology and design parameters. …”
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“…Results are presented of a search for a charged Higgs boson with a mass larger than the top quark in the $gg\rightarrow H^+tb$ production process. …”
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“…The top quark is the heaviest particle in the Standard Model, with a strong coupling to the Higgs boson. …”
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“…After a brief presentation of cross sections for many photon-induced processes, prospects are discussed for the Higgs boson search as well as for the top quark physics. Although the studied final states possess striking characteristics, the separation of photon-induced processes from the overwhelming background of partonic interactions requires the use of advanced techniques. …”
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“…--HTML--><p>Quarkonium measurements play a crucial role in the investigation of the properties of the deconfined state of nuclear matter, the Quark-Gluon Plasma (QGP), produced in ultra-relativistic heavy ion collisions. …”
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“…In recent years, it has been shown that one prediction of AdS/CFT is indeed close to the experimental result of the real quark–gluon plasma. Since then, the AdS/CFT duality has been applied to various fields of physics; examples are QCD, nuclear physics, condensed-matter physics, and nonequilibrium physics.   …”
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“…This thesis is dedicated to the study of the photon polarization in ${B_s^0\to \phi\gamma}$ decays at LHCb. At the quark level, such decays proceed via a $b \to s \gamma$ penguin transition and are sensitive to possible virtual contributions from New Physics. …”
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“…For larger boosts above order of $p_T>$200 GeV, the final state from the $H\rightarrow b\bar{b}$ or $t\rightarrow bW$ decay can merge into a single jet and the approach to reconstruct the Higgs boson or top quark in this environment should change drastically. …”
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“…Jet quenching is one of the established signatures of the Quark Gluon Plasma, and this phenomenon has been studied extensively in high energy heavy ion experiments over the last decade. …”
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“…These led to predictions for the masses of the top quark and Higgs boson, which were beautifully confirmed later on. …”
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“…The angular distribution of charged particle momenta in relative pseudorapidity ($\Delta \eta$) and relative azimuth ($\Delta \phi$) with respect to a sample of high transverse momentum dijets is utilized to study the momentum balance of jet fragments in heavy-ion collisions, which is potentially modified due to jet quenching in the Quark Gluon Plasma. This analysis compares the contributions of charged particles of different transverse momenta to study the overall event energy balance in PbPb versus pp collisions using data collected in 2011 and 2013, respectively, at collision energies $\sqrt{\rm s_{NN}} = 2.76$ TeV with integrated luminosities of 166 $\mu \rm{b}^{-1}$ and 5.3 pb$^{-1}$. …”
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“…We will show that, in particular, the anomaly in $R_K= {\cal B}(B \to K \mu^+ \mu^-)/{\cal B}(B \to K e^+ e^-)$, found by LHCb, can be addressed, while other constraints from quark- and lepton-flavor physics are met. In fact, the minimal structure of the setup allows for the implementation of a very powerful flavor protection, which avoids the appearance of new sources of flavor-changing neutral currents to very good approximation. …”
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“…The analysis is motivated by the interest in the measurement of short-lived resonances production that can provide insights on the properties of the medium produced in heavy-ion collisions both during its partonic (Quark-Gluon Plasma) and hadronic phase. This particular analysis exploits particle identification of the ALICE Time-Of-Flight detector. …”
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