Results 41 to 50 of about 1,501,856 (330)

Pair Production of the Lightest Chargino via Gluon-Gluon Collisions [PDF]

open access: yes, 1999
The production of the lightest chargino pair from gluon-gluon fusion is studied in the minimal supersymmetric model(MSSM) at proton-proton colliders. We find that with the chosen parameters, the production rate of the subprocess can be over 2.7 femto ...
A. Salam   +45 more
core   +2 more sources

Successful treatment with proton beam therapy for a solitary sternal metastasis of breast cancer: a case report

open access: yesJournal of Medical Case Reports, 2022
Background Breast cancer infrequently metastasizes to the sternum as solitary metastasis. We experienced successful treatment with proton beam therapy for a case of sternal metastasis of breast cancer.
Yojiro Ishikawa   +8 more
doaj   +1 more source

Transverse spin effects in proton-proton scattering and $Q \bar Q$ production

open access: yes, 2002
We discuss transverse spin effects caused by the spin-flip part of the Pomeron coupling with the proton. The predicted spin asymmetries in proton-proton scattering and QQ production in proton-proton and lepton-proton reactions are not small and can be ...
Goloskokov, S. V.
core   +2 more sources

Implementation of Monte Carlo based PET verification of ion beam delivery into a TPS

open access: yesRadiation Medicine and Protection, 2022
Objective: To develop and implement an ion beam teletherapy verification system based upon simulations of induced radioactivity and comparison with patient positron emission tomography (PET) scans.
Pablo Yepes   +7 more
doaj   +1 more source

Possible Method for Measuring the Proton Form Factors in Processes with and without Proton Spin Flip

open access: yes, 2008
The ratio of the squares of the electric and magnetic proton form factors is shown to be proportional to the ratio of the cross sections for the elastic scattering of an unpolarized electron on a partially polarized proton with and without proton spin ...
A. I. Akhiezer   +13 more
core   +1 more source

Cosmic protons [PDF]

open access: yesPhysics Letters B, 2000
The primary proton spectrum in the kinetic energy range 0.2 to 200 GeV was measured by the Alpha Magnetic Spectrometer (AMS) during space shuttle flight STS–91 at an altitude of 380 km. The complete data set combining three shuttle attitudes and including all known systematic effects is ...
Alcaraz, J   +199 more
openaire   +5 more sources

Long-term results of a phase II study of hypofractionated proton therapy for prostate cancer: moderate versus extreme hypofractionation

open access: yesRadiation Oncology, 2019
Background We performed a prospective phase II study to compare acute toxicity among five different hypofractionated schedules using proton therapy. This study was an exploratory analysis to investigate the secondary end-point of biochemical failure-free
Boram Ha   +13 more
doaj   +1 more source

Commissioning and quality assurance of a novel solution for respiratory-gated PBS proton therapy based on optical tracking of surface markers

open access: yesZeitschrift für Medizinische Physik, 2022
We present the commissioning and quality assurance of our clinical protocol for respiratory gating in pencil beam scanning proton therapy for cancer patients with moving targets.
Giovanni Fattori   +18 more
doaj   +1 more source

Proton Radiobiology [PDF]

open access: yesCancers, 2015
In addition to the physical advantages (Bragg peak), the use of charged particles in cancer therapy can be associated with distinct biological effects compared to X-rays. While heavy ions (densely ionizing radiation) are known to have an energy- and charge-dependent increased Relative Biological Effectiveness (RBE), protons should not be very ...
Tommasino F., Durante M.
openaire   +4 more sources

Proton Cumulants and Correlation Functions in Au + Au Collisions at $\sqrt{s_\mathrm{NN}}$=7.7-200 GeV from UrQMD Model

open access: yes, 2017
We studied the acceptance dependence of proton cumulants (up to fourth order) and correlation functions in 0--5\% most central Au+Au collisions at $\sqrt{s_\text{NN}}$=7.7, 11.5, 19.6, 27, 39, 62.4 and 200 GeV from UrQMD model.
He, Shu, Luo, Xiaofeng
core   +2 more sources

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