First measurement of gamma(D*(+)).
We present the first measurement of the D*(+) width using 9/fb of e(+)e(-) data collected near the Upsilon(4S) resonance by the CLEO II.V detector. Our method uses advanced tracking techniques and a reconstruction method that takes advantage of the small vertical size of the Cornell Electron-positro...
| Váldodahkkit: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Materiálatiipa: | Journal article |
| Giella: | English |
| Almmustuhtton: |
2001
|
| _version_ | 1826299444401799168 |
|---|---|
| author | Ahmed, S Alam, MS Athar, S Jian, L Ling, L Saleem, M Timm, S Wappler, F Anastassov, A Eckhart, E Gan, K Gwon, C Hart, T Honscheid, K Hufnagel, D Kagan, H Kass, R Pedlar, T Thayer, J von Toerne, E Zoeller, M Richichi, S Severini, H Skubic, P Undrus, A |
| author_facet | Ahmed, S Alam, MS Athar, S Jian, L Ling, L Saleem, M Timm, S Wappler, F Anastassov, A Eckhart, E Gan, K Gwon, C Hart, T Honscheid, K Hufnagel, D Kagan, H Kass, R Pedlar, T Thayer, J von Toerne, E Zoeller, M Richichi, S Severini, H Skubic, P Undrus, A |
| author_sort | Ahmed, S |
| collection | OXFORD |
| description | We present the first measurement of the D*(+) width using 9/fb of e(+)e(-) data collected near the Upsilon(4S) resonance by the CLEO II.V detector. Our method uses advanced tracking techniques and a reconstruction method that takes advantage of the small vertical size of the Cornell Electron-positron Storage Ring beam spot to measure the energy release distribution from the D*(+)-->D(0)pi(+) decay. We find gamma(D*(+)) = 96+/-4 (stat)+/-22 (syst) keV. We also measure the energy release in the decay and compute Delta m identical with m(D*(+))-m(D(0)) = 145.412+/-0.002 (stat)+/-0.012 (syst) MeV/c(2). |
| first_indexed | 2024-03-07T05:02:02Z |
| format | Journal article |
| id | oxford-uuid:d899fa16-65c7-497e-954a-ebd0188b9248 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:02:02Z |
| publishDate | 2001 |
| record_format | dspace |
| spelling | oxford-uuid:d899fa16-65c7-497e-954a-ebd0188b92482022-03-27T08:50:04ZFirst measurement of gamma(D*(+)).Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d899fa16-65c7-497e-954a-ebd0188b9248EnglishSymplectic Elements at Oxford2001Ahmed, SAlam, MSAthar, SJian, LLing, LSaleem, MTimm, SWappler, FAnastassov, AEckhart, EGan, KGwon, CHart, THonscheid, KHufnagel, DKagan, HKass, RPedlar, TThayer, Jvon Toerne, EZoeller, MRichichi, SSeverini, HSkubic, PUndrus, AWe present the first measurement of the D*(+) width using 9/fb of e(+)e(-) data collected near the Upsilon(4S) resonance by the CLEO II.V detector. Our method uses advanced tracking techniques and a reconstruction method that takes advantage of the small vertical size of the Cornell Electron-positron Storage Ring beam spot to measure the energy release distribution from the D*(+)-->D(0)pi(+) decay. We find gamma(D*(+)) = 96+/-4 (stat)+/-22 (syst) keV. We also measure the energy release in the decay and compute Delta m identical with m(D*(+))-m(D(0)) = 145.412+/-0.002 (stat)+/-0.012 (syst) MeV/c(2). |
| spellingShingle | Ahmed, S Alam, MS Athar, S Jian, L Ling, L Saleem, M Timm, S Wappler, F Anastassov, A Eckhart, E Gan, K Gwon, C Hart, T Honscheid, K Hufnagel, D Kagan, H Kass, R Pedlar, T Thayer, J von Toerne, E Zoeller, M Richichi, S Severini, H Skubic, P Undrus, A First measurement of gamma(D*(+)). |
| title | First measurement of gamma(D*(+)). |
| title_full | First measurement of gamma(D*(+)). |
| title_fullStr | First measurement of gamma(D*(+)). |
| title_full_unstemmed | First measurement of gamma(D*(+)). |
| title_short | First measurement of gamma(D*(+)). |
| title_sort | first measurement of gamma d |
| work_keys_str_mv | AT ahmeds firstmeasurementofgammad AT alamms firstmeasurementofgammad AT athars firstmeasurementofgammad AT jianl firstmeasurementofgammad AT lingl firstmeasurementofgammad AT saleemm firstmeasurementofgammad AT timms firstmeasurementofgammad AT wapplerf firstmeasurementofgammad AT anastassova firstmeasurementofgammad AT eckharte firstmeasurementofgammad AT gank firstmeasurementofgammad AT gwonc firstmeasurementofgammad AT hartt firstmeasurementofgammad AT honscheidk firstmeasurementofgammad AT hufnageld firstmeasurementofgammad AT kaganh firstmeasurementofgammad AT kassr firstmeasurementofgammad AT pedlart firstmeasurementofgammad AT thayerj firstmeasurementofgammad AT vontoernee firstmeasurementofgammad AT zoellerm firstmeasurementofgammad AT richichis firstmeasurementofgammad AT severinih firstmeasurementofgammad AT skubicp firstmeasurementofgammad AT undrusa firstmeasurementofgammad |