Measurement of the differential γ +2b-jet cross section and the ratio σ(γ +2b-jets)/σ(γ +b-jet) in p¯p collisions at √s = 1.96 TeV
- Abazov, V. M.
- Abbott, B.
- Acharya, B. S.
- Adams, M.
- Adams, T.
- Agnew, J. P.
- Alexeev, G. D.
- Alkhazov, G.
- Alton, A.
- Askew, A.
- Atkins, S.
- Augsten, K.
- Avila, C.
- Badaud, F.
- Bagby, L.
- Baldin, B.
- Bandurin, D. V.
- Banerjee, S.
- Barberis, E.
- Baringer, P.
- Bartlett, J. F.
- Bassler, U.
- Bazterra, V.
- Bean, A.
- Begalli, M.
- Bellantoni, L.
- Beri, S. B.
- Bernardi, G.
- Bernhard, R.
- Bertram, I.
- Besancon, M.
- Beuselinck, R.
- Bhat, P. C.
- Boehnlein, A.
- Boline, D.
- Boos, E. E.
- Borissov, G.
- Borysova, M.
- Brandt, A.
- Brandt, O.
- Brock, R.
- Bross, A.
- Brown, D.
- Bu, X. B.
- Buehler, M.
- Buescher, V.
- Bunichev, V.
- Burdin, S.
- Buszello, C. P.
- Camacho-Perez, E.
- Nunnemann, Thomas
DOIAbstract
We present the first measurements of the differential cross section dσ/dpγ T for the production of an isolated photon in association with at least two b-quark jets. The measurements consider photons with rapidities |yγ | 15 GeVand |yjet| < 1.5. The ratio of differential production cross sections for γ + 2 b-jets to γ +b-jet as a function of pγT is also presented. The results are based on the proton–antiproton collision data at √s = 1.96 TeVcollected with the D0 detector at the Fermilab Tevatron Collider. The measured cross sections and their ratios are compared to the next-to-leading order perturbative QCD calculations as well as predictions based on the kT-factorization approach and those from the sherpa and pythia Monte Carlo event gener...
Add to ORKG