#### Filter Results:

- Full text PDF available (20)

#### Publication Year

1981

2014

- This year (0)
- Last 5 years (2)
- Last 10 years (3)

#### Publication Type

#### Co-author

#### Journals and Conferences

Learn More

A rigorous QCD analysis of the inclusive annihilation decay rates of heavy quarkonium states is presented. The effective-field-theory framework of nonrelativistic QCD is used to separate the short-distance scale of annihilation, which is set by the heavy quark massM , from the longer-distance scales assoOn leave from Dept. of Physics and Astronomy,… (More)

- Geoffrey T. Bodwin, Hee Sok Chung, U-Rae Kim, Jungil Lee
- Physical review letters
- 2014

We compute leading-power fragmentation corrections to J/ψ production at the Tevatron and the LHC. We find that, when these corrections are combined with perturbative corrections through next-to-leading order in the strong coupling constant α(s), we obtain a good fit to high-p(T) cross section data from the CDF and CMS Collaborations. The fitted… (More)

In this Snowmass White Paper, we discuss physics opportunities involving heavy quarkonia at the intensity and energy frontiers of high energy physics. We focus primarily on two specific aspects of quarkonium physics for which significant advances can be expected from experiments at both frontiers. The first aspect is the spectroscopy of charmonium and… (More)

Rigorous QCD predictions for decay rates of the P-wave states of heavy quarkonia are presented. They are based on a new factorization theorem which is valid to leading order in the heavy quark velocity and to all orders in the running coupling constant of QCD. The decay rates for all four P states into light hadronic or electromagnetic final states are… (More)

- Geoffrey T. Bodwin, Jungil Lee, Eric Braaten
- Physical review letters
- 2003

Recent measurements by the Belle Collaboration of the exclusive production of two charmonia in e(+)e(-) annihilation differ substantially from theoretical predictions. We suggest that a significant part of the discrepancy can be explained by the process e(+)e(-)-->J/psi+J/psi. Because the J/psi+J/psi production process can proceed through fragmentation of… (More)

- Geoffrey T. Bodwin, Stanley J. Brodskyt
- 1988

We develop a simple, intuitive picture of the effects, in the Drell-Yan process, of initial-state interactions between the projectile and the target. For purposes of illustration, we present specific analyses in terms of a nonrelativistic QED model. However, our principle conclusions are valid in QCD as well. We show that initial-state interactions lead to… (More)

Some time ago we presented a lattice method for chiral gauge theories that involves the introduction of auxiliary Dirac species [1,2]. Here we elaborate on an alternative approach [2] that achieves the effects of the auxiliary species through a direct modification of the fermion determinant. This alternative method has the advantage that the computational… (More)

We discuss the theory of inclusive production of heavy quarkonium, the comparison between theory and experiment, and the expected nuclear effects in cold nuclear targets. We also present predictions, based on Nonrelativistic QCD (NRQCD), for quarkonium production cross sections in the LHC energy range. We find that nuclear effects in the production cross… (More)

Heavy-quarkonium systems are nonrelativistic. In the CM frame, the average quark velocity v satisfies v ≪ 1, where v ≈ 0.3 for charmonium, and v ≈ 0.1 for bottomonium. This fact allows one to describe heavy-quarkonium systems conveniently in terms of the effective field theory Nonrelativistic QCD (NRQCD). NRQCD accurately describes processes in which pQ <… (More)

We present a method for formulating gauge theories of chiral fermions in lattice field theory. The method makes use of a Wilson mass to remove doublers. Gauge invariance is then restored by modifying the theory in two ways: the magnitude of the fermion determinant is replaced with the square root of the determinant for a fermion with vector-like couplings… (More)