Measurement E103M2
| Experiment: | g7a: Search for medium modification of light vector mesons off nuclei | |
|---|---|---|
| Year: | 2007 |
|
| Spokespersons: | D. Weygand, C. Djalali, M. Kossov | |
| Reaction: | γ12C → ρ + X | |
| Polarization: | none | |
| Quantity: | dY/dM(e+, e−) | |
| Ebeam: | 4.0 GeV | |
| Eγ: | 0.0 — 3.8 GeV | |
| Publication: |
R. Nasseripour, M. Wood, C. Djalali, D. Weygand, C. Tur, U. Mosel, P. Muehlich Search for Medium Modifications of the ρ Meson //
Phys. Rev. Lett. 99, 262302 (2007)
|
|
| M(e+,e−), [GeV] | dY/dM(e+, e−), [counts/12MeV] | uncertainty |
|---|---|---|
| 0.006 | 0.0 | 1.0 |
| 0.018 | 0.0 | 1.0 |
| 0.03 | 0.0 | 1.0 |
| 0.042 | 0.0 | 1.0 |
| 0.054 | 0.0 | 1.0 |
| 0.066 | 0.0 | 1.0 |
| 0.078 | 0.0 | 1.0 |
| 0.09 | 0.0 | 1.0 |
| 0.102 | 0.0 | 1.0 |
| 0.114 | 0.0 | 1.0 |
| 0.126 | 0.0 | 1.0 |
| 0.138 | 1.0 | 1.0 |
| 0.15 | 0.0 | 1.0 |
| 0.162 | 0.0 | 1.0 |
| 0.174 | 0.0 | 1.0 |
| 0.186 | 1.1999999 | 1.7320508 |
| 0.198 | 3.4000001 | 2.0 |
| 0.21 | 0.3999999 | 2.0 |
| 0.222 | 3e-07 | 1.7320508 |
| 0.234 | 2.5999999 | 2.8284271 |
| 0.246 | 1e-07 | 2.236068 |
| 0.258 | 3e-07 | 1.4142135 |
| 0.27 | 3.5999999 | 3.0 |
| 0.282 | 0.3999996 | 3.6055512 |
| 0.294 | 8e-07 | 3.4641016 |
| 0.306 | 0.3999996 | 3.1622777 |
| 0.318 | 4.3999996 | 3.7416575 |
| 0.33 | 1.7999992 | 3.8729835 |
| 0.342 | 5.1999998 | 4.0 |
| 0.354 | 18.0 | 4.8989797 |
| 0.366 | 6.0 | 4.8989797 |
| 0.378 | 12.7999992 | 4.7958317 |
| 0.39 | 7.1999998 | 4.5825758 |
| 0.402 | 8.0 | 4.1231055 |
| 0.414 | 4.7999992 | 4.8989797 |
| 0.426 | 8.3999996 | 4.8989797 |
| 0.438 | 13.3999996 | 5.3851647 |
| 0.45 | 22.7999992 | 5.7445626 |
| 0.462 | 11.7999992 | 5.5677643 |
| 0.474 | 18.0 | 6.4807405 |
| 0.486 | 10.7999992 | 5.4772258 |
| 0.498 | 9.7999992 | 5.0990195 |
| 0.51 | 21.7999992 | 6.1644139 |
| 0.522 | 15.5999985 | 6.0 |
| 0.534 | 25.0 | 6.78233 |
| 0.546 | 12.0 | 5.7445626 |
| 0.558 | 20.0 | 6.4031243 |
| 0.57 | 27.7999992 | 6.6332498 |
| 0.582 | 30.0 | 6.7082038 |
| 0.594 | 18.7999992 | 5.91608 |
| 0.606 | 36.2000008 | 6.8556547 |
| 0.618 | 36.5999985 | 6.9282031 |
| 0.63 | 34.7999992 | 6.4807405 |
| 0.642 | 44.0 | 7.6811457 |
| 0.654 | 37.2000008 | 7.1414285 |
| 0.666 | 25.1999989 | 6.7082038 |
| 0.678 | 35.5999985 | 6.6332498 |
| 0.69 | 49.4000015 | 7.483315 |
| 0.702 | 46.2000008 | 7.5498343 |
| 0.714 | 55.7999992 | 8.1240387 |
| 0.726 | 63.4000015 | 8.3666 |
| 0.738 | 63.5999985 | 8.485281 |
| 0.75 | 56.2000008 | 8.0 |
| 0.762 | 77.8000031 | 9.2195444 |
| 0.774 | 137.1999969 | 11.9163752 |
| 0.786 | 161.0 | 12.9228477 |
| 0.798 | 73.4000015 | 8.7749643 |
| 0.81 | 22.5999985 | 5.5677643 |
| 0.822 | 26.0 | 5.3851647 |
| 0.834 | 19.6000004 | 5.0 |
| 0.846 | 16.7999992 | 4.5825758 |
| 0.858 | 13.7999992 | 4.2426405 |
| 0.87 | 13.6000004 | 4.3588991 |
| 0.882 | 9.1999998 | 3.7416575 |
| 0.894 | 7.0 | 3.1622777 |
| 0.906 | 13.6000004 | 4.0 |
| 0.918 | 2.7999997 | 2.6457512 |
| 0.93 | 5.4000001 | 2.4494898 |
| 0.942 | 9.6000004 | 3.4641016 |
| 0.954 | 2.5999999 | 2.236068 |
| 0.966 | 5.5999999 | 2.8284271 |
| 0.978 | 3.5999999 | 2.4494898 |
| 0.99 | 13.0 | 3.6055512 |
| 1.002 | 12.3999996 | 3.6055512 |
| 1.014 | 22.2000008 | 4.8989797 |
| 1.026 | 23.7999992 | 5.0 |
| 1.038 | 7.8000002 | 3.0 |
| 1.05 | 4.4000001 | 2.236068 |
| 1.062 | 0.0 | 1.0 |
| 1.074 | 5.8000002 | 2.6457512 |
| 1.086 | 0.1999999 | 1.4142135 |
| 1.098 | 1.5999999 | 2.0 |
| 1.11 | 2.0 | 1.4142135 |
| 1.122 | 1.0 | 1.0 |
| 1.134 | 1.4 | 1.4142135 |
| 1.146 | 3.0 | 1.7320508 |
| 1.158 | 1.0 | 1.0 |
| 1.17 | 3.4000001 | 2.0 |
| 1.182 | 0.0 | 1.0 |
| 1.194 | 1.0 | 1.0 |