In particle physics, the tracking is the act of measuring the direction and magnitude of charged particlesmomenta. The particles entering a tracker (the device used for tracking), release part of their energy in the device: the tracker has to be finely segmented in order to be able to reconstruct with good precision where the particle passed. Since the tracking is usually made in a region where a magnetic field is present, it is possible to reconstruct part of the helix made by the particle inside the tracker (that is called track), and from the track parameters, and by knowing the mass of the particle under study (which is known by the use of particle identification), it is possible to reconstruct the actual direction and magnitude of the particle momenta. From these information the tracking of charged particles can be used to reconstruct secondary decays, this can be done for B-tagging (in experiments like CDF or at LHC) or to fully reconstruct events (like in BaBar and Belle).
Tracking, one of the first freefall skills learned by a novice skydiver, is the technique of assuming a body position that allows the skydiver to move horizontally while freefalling.
Although there are many variations of the basic body position it essentially involves the skydiver moving out of the traditional face to earth arched position, straightening the legs, bringing the arms to the sides and de-arching, using the body to cup the air as a means of providing greater lift. There is, however, debate over what exactly constitutes the most efficient tracking position (providing the best glide ratio) especially concerning how far (if at all) the skydiver's legs should be spread. Some variations of the tracking position work well for some individuals and not so well for others. Also, when a skydiver gains experience, his or her preferred body position often changes.
It is claimed that good trackers can cover nearly as much ground as the distance they fall, approaching a glide ratio of 1:1. It is known that the fall rate of a skydiver in an efficient track is significantly lower than that of one falling in a traditional face-to-earth position; the former reaching speeds as low as 90mph, the latter averaging around the 120mph mark.
The five-track project tells a story of love, maturity and the ability to adapt to change, which is something that EXO know all too well ... The group deviate from R&B and slow things down with ‘Runaway’, a moody, soft rock track that combines piano and a hard bass-line, and talks about escaping the hardships of life.
The new policy marks a shift from using radio frequency monitors (which alert authorities if the wearer leaves an assigned area) to round-the-clock GPS trackers (which track a person’s every move), while also giving the Home Office new powers to collect, store and access this data indefinitely via a private contractor.
A car ploughed through a group of people at a mud-track event in Fabens, Texas on Sunday evening ... A video from the scene shows one of the race cars losing control right from the start and heading towards a group of spectators ... after a vehicle rammed into a group of spectators.
The head of the UK’s biggest business lobby group has warned that the corporate world is “way off track” in tackling the climate crisis ... The climate crisis is worsening and currently we’re way off track.”.
GOWANDA — The Portville boys track and field team won the CCAA Div. II meet on Saturday, while the Panthers’ girls team was just five points shy of first-place Chautauqua Lake... RANDOLPH — The Franklinville/Ellicottville girls track and field team won the CCAA Div. III meet on Saturday, topping a group of six teams ... BOYS TRACK. AT GOWANDA ... B ... GIRLS TRACK ... .
These teams — the 12 squads who won state titles Saturday at the NJSIAAGroup Championships — were the first to hoist trophies after the coronavirus pandemic wiped out or altered five seasons worth of the track or cross country ...Joseph Aglione of Rumson-Fair Haven won the Group 2 ...
The group contends that commissioners made the changes as retaliation for its opposition to purse money being used to cover operational costs at the state’s five privately owned tracks. According to the group, more than $8 million has been diverted from purses to the tracks for certain operating expenses, including to purchase insurance.
Lauren Princz won an individual event and ran in a winning relay to lead the Egg Harbor Township High School girls track and field team to its first state Group IV team title in program history at Franklin High School on Saturday. Athletes from Group II also competed in the two-day event, which started Friday.
Multisport standouts show off talent at Southern Section track and field finals ... Multisport standouts show off talent at Southern Section track and field finals. Max Thomas of Servite, DomaniJackson of Mater Dei, Rodrick Pleasant of Gardena Serra turn on the speed on Saturday at track and field championships.