Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Buchoff, Michael I."'
Autor:
Rinaldi, Enrico, Syritsyn, Sergey, Wagman, Michael L., Buchoff, Michael I., Schroeder, Chris, Wasem, Joseph
Publikováno v:
Phys. Rev. D 99, 074510 (2019)
Matrix elements of six-quark operators are needed to extract new physics constraints from experimental searches for neutron-antineutron oscillations. This work presents in detail the first lattice quantum chromodynamics calculations of the necessary
Externí odkaz:
http://arxiv.org/abs/1901.07519
Autor:
Rinaldi, Enrico, Syritsyn, Sergey, Wagman, Michael L., Buchoff, Michael I., Schroeder, Chris, Wasem, Joseph
Publikováno v:
Phys. Rev. Lett. 122, 162001 (2019)
Fundamental symmetry tests of baryon number violation in low-energy experiments can probe beyond the Standard Model (BSM) explanations of the matter-antimatter asymmetry of the universe. Neutron-antineutron oscillations are predicted to be a signatur
Externí odkaz:
http://arxiv.org/abs/1809.00246
Autor:
Buchoff, Michael I., Wagman, Michael
Publikováno v:
Phys. Rev. D 93, 016005 (2016)
Two-loop anomalous dimensions and one-loop renormalization scheme matching factors are calculated for six-quark operators responsible for neutron-antineutron transitions. When combined with lattice QCD determinations of the matrix elements of these o
Externí odkaz:
http://arxiv.org/abs/1506.00647
Publikováno v:
Phys. Rev. D 92, 034507 (2015)
One intriguing BSM particle is the QCD axion, which could simultaneously provide a solution to the Strong CP problem and account for some, if not all, of the dark matter density in the universe. This particle is a pNGB of the conjectured Peccei-Quinn
Externí odkaz:
http://arxiv.org/abs/1505.07455
Autor:
Appelquist, Thomas, Berkowitz, Evan, Brower, Richard C., Buchoff, Michael I., Fleming, George T., Jin, Xiao-Yong, Kiskis, Joe, Kribs, Graham D., Neil, Ethan T., Osborn, James C., Rebbi, Claudio, Rinaldi, Enrico, Schaich, David, Schroeder, Chris, Syritsyn, Sergey, Vranas, Pavlos, Weinberg, Evan, Witzel, Oliver
Publikováno v:
Phys. Rev. Lett. 115, 171803 (2015)
We calculate the spin-independent scattering cross section for direct detection that results from the electromagnetic polarizability of a composite scalar baryon dark matter candidate -- "Stealth Dark Matter", that is based on a dark SU(4) confining
Externí odkaz:
http://arxiv.org/abs/1503.04205
Autor:
Appelquist, Thomas, Brower, Richard C., Buchoff, Michael I., Fleming, George T., Jin, Xiao-Yong, Kiskis, Joe, Kribs, Graham D., Neil, Ethan T., Osborn, James C., Rebbi, Claudio, Rinaldi, Enrico, Schaich, David, Schroeder, Chris, Syritsyn, Sergey, Vranas, Pavlos, Weinberg, Evan, Witzel, Oliver
Publikováno v:
Phys. Rev. D 92, 075030 (2015)
We present a new model of "Stealth Dark Matter": a composite baryonic scalar of an $SU(N_D)$ strongly-coupled theory with even $N_D \geq 4$. All mass scales are technically natural, and dark matter stability is automatic without imposing an additiona
Externí odkaz:
http://arxiv.org/abs/1503.04203
Autor:
Buchoff, Michael I., Wagman, Michael
Baryon number symmetry violating theories beyond the standard model with suppressed proton decay rates can be experimentally constrained by data on neutron-antineutron transition rates. In order to apply this constraints, theoretical predictions for
Externí odkaz:
http://arxiv.org/abs/1502.00044
Autor:
Appelquist, Thomas, Berkowitz, Evan, Brower, Richard C., Buchoff, Michael I., Fleming, George T., Kiskis, Joe, Kribs, Graham D., Lin, Meifeng, Neil, Ethan T., Osborn, James C., Rebbi, Claudio, Rinaldi, Enrico, Schaich, David, Schroeder, Chris, Syritsyn, Sergey, Voronov, Gennady, Vranas, Pavlos, Weinberg, Evan, Witzel, Oliver
Publikováno v:
Phys. Rev. D 89, 094508 (2014)
We present the spectrum of baryons in a new SU(4) gauge theory with fundamental fermion constituents. The spectrum of these bosonic baryons is of significant interest for composite dark matter theories. Here, we compare the spectrum and properties of
Externí odkaz:
http://arxiv.org/abs/1402.6656
Autor:
Bhattacharya, Tanmoy, Buchoff, Michael I., Christ, Norman H., Ding, H. -T., Gupta, Rajan, Jung, Chulwoo, Karsch, F., Lin, Zhongjie, Mawhinney, R. D., McGlynn, Greg, Mukherjee, Swagato, Murphy, David, Petreczky, P., Schroeder, Chris, Soltz, R A., Vranas, P. M., Yin, Hantao
Publikováno v:
Phys. Rev. Lett. 113, 082001 (2014)
We report on the first lattice calculation of the QCD phase transition using chiral fermions at physical values of the quark masses. This calculation uses 2+1 quark flavors, spatial volumes between (4 fm$)^3$ and (11 fm$)^3$ and temperatures between
Externí odkaz:
http://arxiv.org/abs/1402.5175
Autor:
Buchoff, Michael I., Cheng, Michael, Christ, Norman H., Ding, H. -T., Jung, Chulwoo, Karsch, F., Lin, Zhongjie, Mawhinney, R. D., Mukherjee, Swagato, Petreczky, P., Renfrew, Dwight, Schroeder, Chris, Vranas, P. M., Yin, Hantao
Publikováno v:
Phys. Rev. D 89, 054514 (2014)
We report on a study of the finite-temperature QCD transition region for temperatures between 139 and 196 MeV, with a pion mass of 200 MeV and two space-time volumes: $24^3\times8$ and $32^3\times8$, where the larger volume varies in linear size betw
Externí odkaz:
http://arxiv.org/abs/1309.4149