Study of Drell-Yan production in the di-electron channel and
... ’tag’ is required to pass stringent selection criteria while the ’probe’ is used to measure the efficiency. To ensure a high purity di-electron sample, the invariant mass of the two objects is required to be in the mass range 80 < M ee < 100 GeV/c2 . The high mass region (120 < Mee < 600 GeV/c2 ), w ...
... ’tag’ is required to pass stringent selection criteria while the ’probe’ is used to measure the efficiency. To ensure a high purity di-electron sample, the invariant mass of the two objects is required to be in the mass range 80 < M ee < 100 GeV/c2 . The high mass region (120 < Mee < 600 GeV/c2 ), w ...
1 - INFN Torino - Istituto Nazionale di Fisica Nucleare
... range modulator, and a snout housing the patient-specific collimator and bolus. When used with a fixed energy beam, the first scatterer also acts as energy absorber. The range modulator is not required when full energy is achieved from the accelerator. .......................................... 40 F ...
... range modulator, and a snout housing the patient-specific collimator and bolus. When used with a fixed energy beam, the first scatterer also acts as energy absorber. The range modulator is not required when full energy is achieved from the accelerator. .......................................... 40 F ...
Energy Dependence of Multiplicity Fluctuations in Heavy Ion
... eine universelle Funktion Ψ(z) beschrieben werden, wenn n und P (n) mit der mittleren Multiplizität skaliert werden: P (n) = Ψ(n/ hni)/ hni. Diesen Effekt nennt man KNO-Scaling. ...
... eine universelle Funktion Ψ(z) beschrieben werden, wenn n und P (n) mit der mittleren Multiplizität skaliert werden: P (n) = Ψ(n/ hni)/ hni. Diesen Effekt nennt man KNO-Scaling. ...
Analysis of the fragmentation function based on ATLAS data
... This is called jet in high energy particle physics, as stated before. In Figure 3 is shown an example on how a jet could look experimental. There the green tracks would correspond to particles that belong to the jet and the grey cone shaped volume correspond to the geometrical definition of the cone ...
... This is called jet in high energy particle physics, as stated before. In Figure 3 is shown an example on how a jet could look experimental. There the green tracks would correspond to particles that belong to the jet and the grey cone shaped volume correspond to the geometrical definition of the cone ...
[tel-00610015, v1] Étude des détecteurs planaires pixels durcis aux
... system is detailed. It allows for easy comparison between experimental data and prediction by the various radiation damage models available. The digitizer has been validated using test beam data for unirradiated sensors and can be used to produce the first full scale simulation of the ATLAS detector ...
... system is detailed. It allows for easy comparison between experimental data and prediction by the various radiation damage models available. The digitizer has been validated using test beam data for unirradiated sensors and can be used to produce the first full scale simulation of the ATLAS detector ...
Determination of the Proton`s Weak Charge via Parity
... was lucky enough to have two excellent scientific mentors; Dr. David Armstrong and the late Dr. Mike Finn. Without the latter I would not have gotten into the field of experimental particle physics. He was a mentor and friend who is dearly missed by many; myself included. I would also like to thank ...
... was lucky enough to have two excellent scientific mentors; Dr. David Armstrong and the late Dr. Mike Finn. Without the latter I would not have gotten into the field of experimental particle physics. He was a mentor and friend who is dearly missed by many; myself included. I would also like to thank ...
TIPP09-Forty ppt
... through precision measurement of CP violation and rare decays • B hadrons are predominantly produced in the forward direction → single-arm spectrometer (working in pp collider mode) including two RICH detectors for charged hadron identification ...
... through precision measurement of CP violation and rare decays • B hadrons are predominantly produced in the forward direction → single-arm spectrometer (working in pp collider mode) including two RICH detectors for charged hadron identification ...
Dynamics and Transport of Laser
... ated electron beams. Most commonly used tracking codes applied here and in the field of conventional particle acceleration are found to exhibit substantial deficits in the applied models for treating space charge in the regime of laser acceleration. The ensuing artifacts stem from common approximati ...
... ated electron beams. Most commonly used tracking codes applied here and in the field of conventional particle acceleration are found to exhibit substantial deficits in the applied models for treating space charge in the regime of laser acceleration. The ensuing artifacts stem from common approximati ...
Emittance growth induced by electron cloud in proton storage rings
... In order to achieve the maximum luminosity it is necessary to store as many particles as possible and minimize the transverse dimensions of the two counter–rotating beams. Different dynamics effects can reduce the luminosity in a storage ring, both limiting the beam intensity or increasing its trans ...
... In order to achieve the maximum luminosity it is necessary to store as many particles as possible and minimize the transverse dimensions of the two counter–rotating beams. Different dynamics effects can reduce the luminosity in a storage ring, both limiting the beam intensity or increasing its trans ...
What is new at CERN? - Vanderbilt HEP
... found that it had an unexpected short lifetime in the electron cooler, it picked up an e- in a much shorter time than either Pb+52 or +54. Chose +54 state. Pb+53 ends with a 5p^5 orbital---that looks bad! While Pb+52 ends with 5p^4 (all paired) and +54 ends with ...
... found that it had an unexpected short lifetime in the electron cooler, it picked up an e- in a much shorter time than either Pb+52 or +54. Chose +54 state. Pb+53 ends with a 5p^5 orbital---that looks bad! While Pb+52 ends with 5p^4 (all paired) and +54 ends with ...
Electronic properties of graphene, from `high` to `low` energies from
... Bloch function amplitudes (e.g., in the valley K) on the AB sites (‘isospin’) ( isospin ) mimic spin components of a massless relativistic particle. ...
... Bloch function amplitudes (e.g., in the valley K) on the AB sites (‘isospin’) ( isospin ) mimic spin components of a massless relativistic particle. ...
CHAPTER 14: Elementary Particles
... This is a particularly useful way to classify elementary particles because all stable matter in the universe appears to be composed, at some level, of constituent fermions. Fermions obey the Pauli Exclusion Principle. Bosons don’t. Photons, gluons, W±, and the Z are called gauge bosons and are respo ...
... This is a particularly useful way to classify elementary particles because all stable matter in the universe appears to be composed, at some level, of constituent fermions. Fermions obey the Pauli Exclusion Principle. Bosons don’t. Photons, gluons, W±, and the Z are called gauge bosons and are respo ...
DESY
The Deutsches Elektronen-Synchrotron (english German Electron Synchrotron) commonly referred to by the abbreviation DESY, is a national research center in Germany that operates particle accelerators used to investigate the structure of matter. It conducts a broad spectrum of inter-disciplinary scientific research in three main areas: particle and high energy physics; photon science; and the development, construction and operation of particle accelerators. Its name refers to its first project, an electron synchrotron. DESY is publicly financed by the Federal Republic of Germany, the States of Germany, and the German Research Foundation (DFG). DESY is a member of the Helmholtz Association and operates at sites in Hamburg and Zeuthen.