Dark Matter Searches with Top Quarks by J. Katharina Behr, Alexander Grohsjean

Subjects: “…top quark…”
Get full text

Fermionic Glauber operators and quark reggeization by Moult, Ian, Solon, Mikhail P., Stewart, Iain W, Vita, Gherardo

“…We derive, in the framework of soft-collinear effective field theory (SCET), a Lagrangian describing the t-channel exchange of Glauber quarks in the Regge limit. The Glauber quarks are not dynamical, but are incorporated through non-local fermionic potential operators. …”
Get full text
Get full text

An operational definition of quark and gluon jets by Komiske, Patrick T., Metodiev, Eric Mario, Thaler, Jesse

“…Intuitively, quark and gluon jets emerge as the two maximally separable categories within two jet samples in data. …”
Get full text
Get full text

Finding the Scatterers in Hot Quark Soup by D’Eramo, Francesco, Rajagopal, Krishna, Yin, Yi

“…We present a brief report on a thought experiment in which an incident energetic parton traverses a brick of quark-gluon plasma (QGP), see Ref. [1] for the full report. …”
Get full text

Finding the Scatterers in Hot Quark Soup by D’Eramo, Francesco, Rajagopal, Krishna, Yin, Yi

“…We present a brief report on a thought experiment in which an incident energetic parton traverses a brick of quark-gluon plasma (QGP), see Ref. [1] for the full report. …”
Get full text

A quark model for nuclear matter by Dagdeviren, Nuri Ruhi

Get full text

Quark masses : an environmental impact statement by Kimchi, Itamar

Get full text

The crystallography of three flavor quark matter by Sharma, Rishi, Ph. D. Massachusetts Institute of Technology

Get full text

On Gribov’s supercriticality picture of quark confinement by Williams, Richard, Fischer, Christian S., Nickel, Marcel Dominik Johannes

“…Some years ago Gribov developed the so-called supercritical light-quark confinement scenario. Based on physical arguments he conjectured a drastic change in the analytical properties of the quark propagator when the back reaction of Goldstone bosons (pions) is considered. …”
Get full text

Quark masses: An environmental impact statement by Kimchi, Itamar, Jenkins, Alejandro, Jaffe, Robert L.

“…We investigate worlds that lie on a slice through the parameter space of the standard model over which quark masses vary. We allow as many as three quarks to participate in nuclei, while fixing the mass of the electron and the average mass of the lightest baryon flavor multiplet. …”
Get full text
Get full text

Heavy quarks in effective field theories by Jain, Ambar

Get full text

Quark fragmentation within an identified jet by Procura, Massimiliano, Stewart, Iain W

Get full text
Get full text

Measurement of the top quark p(T) distribution. by Affolder, T, Akimoto, H, Akopian, A, Albrow, MG, Amaral, P, Amendolia, SR, Amidei, D, Anikeev, K, Antos, J, Apollinari, G, Arisawa, T, Asakawa, T, Ashmanskas, W, Azfar, F, Azzi-Bacchetta, P, Bacchetta, N, Bailey, M, Bailey, S, de Barbaro, P, Barbaro-Galtieri, A, Barnes, V, Barnett, B, Baroiant, S, Barone, M, Bauer, G

“…We use these data to place limits on the production of high- p(T) top quarks suggested in some models of anomalous top quark pair production.…”

Hadron spectrum with staggered dynamical quarks by Bitar, K, Kennedy, A, Liu, W, DeGrand, T, Gottlieb, S, Kogut, J, Renken, R, Ogilvie, M, Rossi, P, Sinclair, D, Sugar, R, Teper, M, Toussaint, D

“…We describe a recent calculation of the hadron spectrum with two flavors of staggered dynamical quarks with a gauge coupling 6/g2 = 5.60 and quark masses of 0.025 and 0.01. …”

Helicity amplitudes for QCD with massive quarks by Ochirov, A

“…The novel massive spinor-helicity formalism of Arkani-Hamed, Huang and Huang provides an elegant way to calculate scattering amplitudes in quantum chromodynamics for arbitrary quark spin projections. In this note we compute two families of tree-level QCD amplitudes with one massive quark pair and n − 2 gluons. …”

Evidence for production of single top quarks by Abazov, V, Abbott, B, Abolins, M, Acharya, B, Adams, M, Adams, T, Aguilo, E, Ahn, S, Ahsan, M, Alexeev, G, Alkhazov, G, Alton, A, Alverson, G, Alves, G, Anastasoaie, M, Ancu, L, Andeen, T, Anderson, S, Anzelc, MS, Aoki, M, Arnoud, Y, Arov, M, Arthaud, M, Askew, A, Asman, B

“…The standard model predicts that the electroweak interaction can produce a top quark together with an antibottom quark or light quark, without the antiparticle top-quark partner that is always produced from strong-coupling processes. …”

Direct measurement of the top quark mass by Abachi, S, Abbott, B, Abolins, M, Acharya, B, Adam, I, Adams, D, Adams, M, Ahn, S, Aihara, H, Alves, G, Amidi, E, Amos, N, Anderson, E, Astur, R, Baarmand, M, Baden, A, Balamurali, V, Balderston, J, Baldin, B, Banerjee, S, Bantly, J, Barberis, E, Bartlett, J, Bazizi, K, Belyaev, A

Hadronic spectroscopy with Wilson valence quarks by Bitar, K, Kennedy, A, Liu, W, DeGrand, T, Gottlieb, S, Kogut, J, Renken, R, Ogilvie, M, Rossi, P, Sinclair, D, Wang, K, Sugar, R, Teper, M, Toussaint, D

“…The simulation, on a 124 lattice, uses the hybrid molecular dynamics algorithm with two flavors of staggered fermions at two quark mass values and 6/g2 = 5.6. This measurement uses Wilson valence quarks at three values of the hopping parameter on a lattice that is doubled in the time direction. …”

Measurement of the top quark pT distribution by Affolder, T, Akimoto, H, Akopian, A, Albrow, MG, Amaral, P, Amendolia, SR, Amidei, D, Anikeev, K, Antos, J, Apollinari, G, Arisawa, T, Asakawa, T, Ashmanskas, W, Azfar, F, Azzi-Bacchetta, P, Bacchetta, N, Bailey, M, Bailey, S, de Barbaro, P, Barbaro-Galtieri, A, Barnes, V, Barnett, B, Baroiant, S, Barone, M, Bauer, G

“…The first measurement of the true top quark PT distributon was carried out. An attempt was also made to compute a 95% confidence level upper limit on the fraction of top quarks that are produced with 225 > PT > 425 GeV/c. …”

QUARK ANOMALOUS DIMENSIONS AT SMALL-X by Catani, S, Hautmann, F

“…The flavour non-singlet anomalous dimensions are found to be regular at small x. The quark singlet anomalous dimensions are computed by resumming the perturbative series to all orders with next-to-leading logarithmic accuracy.…”