535 research outputs found
Search for Pentaquarks in the Hadronic Decays of the Z Boson with the DELPHI Detector at LEP
No full textRecent evidence for pentaquark states has been published, in particular for a strange pentaquark Θ+(1540), for a double-strange state called Ξ(1862)−− and for a charmed state Θc(3100)0. Such states should be produced in e+e− annihilations in Z decays. In this paper a search for pentaquarks using the DELPHI detector is described. Preliminary upper limits at 95% C.L. are set on the production rates per Z decay of such particles and their charge-conjugate state
Measurement of Inclusive and Production in Decays with the DELPHI Detector
No full textInclusive production of two states in the mass region 1.22--1.56 GeV in decay at LEP I has been observed by the DELPHI Collaboration. The measured masses and widths are and MeV for the first peak and and MeV for the second. A partial-wave analysis has been performed on the spectrum in this mass range; the first peak is consistent with the quantum numbers and the second with . These measurements, as well as their total hadronic production rates per hadronic decay, are consistent with the mesons of the type , where . They are very likely to be the and the , respectively.Inclusive production of two states in the mass region 1.22--1.56 GeV in decay at LEP I has been observed by the DELPHI Collaboration. The measured masses and widths are and MeV for the first peak and and MeV for the second. A partial-wave analysis has been performed on the spectrum in this mass range: the first peak is consistent with the quantum numbers and the second with . These measurements, as well as their total hadronic production rates per hadronic decay, are consistent with the mesons of the type , where . They are very likely to be the and the , respectively.Inclusive production of two states in the mass region 1.22--1.56 GeV in decay at LEP I has been observed by the DELPHI Collaboration. The measured masses and widths are and MeV for the first peak and and MeV for the second. A partial-wave analysis has been performed on the spectrum in this mass range: the first peak is consistent with the quantum numbers and the second with . These measurements, as well as their total hadronic production rates per hadronic decay, are consistent with the mesons of the type , where . They are very likely to be the and the , respectively.Inclusive production of two states in the mass region 1.22--1.56 GeV in decay at LEP I has been observed by the DELPHI Collaboration. The measured masses and widths are and MeV for the first peak and and MeV for the second. A partial-wave analysis has been performed on the spectrum in this mass range; the first peak is consistent with the quantum numbers and the second with . These measurements, as well as their total hadronic production rates per hadronic decay, are consistent with the mesons of the type , where . They are very likely to be the and the , respectively
T315I clone selection in a Ph+ all patient under low-dose ponatinib maintenance
No full textWe report here the clinical course of a Ph+ ALL patient who was treated with ponatinib 15 mg/day, as maintenance therapy, and developed a BCR-ABL T315I mutation leading to ALL relapse. This clonal evolution was reversed, without adverse effects, by increasing ponatinib to 45 mg/day. To our knowledge, we have been confronted with the first clinical case of a T315I clonal selection of ALL caused by subeffective therapeutic level of the drug. This single patient experience highlights the risk of T315I clone selection in Ph+ ALL treated with reduced dose ponatinib
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